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Mini-Split Installation Experts

Mini-Split Installation Services in Plano, TX

Not every room in your home needs a full ducted HVAC system to be comfortable - and not every home can accommodate one. Garage conversions, sunrooms, home offices, bonus rooms above garages, older homes without ductwork, and additions that were never tied into the original system all present the same challenge: how do you heat and cool a space that your existing HVAC cannot reach? The answer, for thousands of North Texas homeowners, is a ductless mini-split system.

At Trotter Air Services, we have been solving comfort problems across Plano, TX and the greater Dallas area since 1970. Three generations of the Trotter family have worked in this business, and we have installed ductless systems in every type of residential application you can imagine - from single-zone units in a master bedroom addition to multi-zone configurations serving an entire home. Our NATE-certified technicians install Armstrong and Samsung mini-split systems with the precision these units demand, and our Armstrong ProTeam dealer status reflects the quality standards we bring to every installation.

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Family-Owned &
Operated Since 1970

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50+ Years of Mini-Split
Installation Experience

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Armstrong & Samsung
Authorized Dealer

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Flexible Financing
Available

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NATE-Certified
Technicians

Ductless Technology

What Is a Ductless Mini-Split and Why Does It Matter for Your Home?

A ductless mini-split is a heating and cooling system that connects one or more compact indoor air handlers directly to an outdoor compressor unit via refrigerant lines and a communication cable - no ductwork required. Each indoor unit operates independently, providing zone-by-zone temperature control that lets you heat or cool specific rooms without conditioning the entire house.

The concept sounds simple, but the engineering behind modern mini-splits is anything but. Today's ductless systems from manufacturers like Armstrong and Samsung use inverter-driven compressors that modulate speed continuously rather than cycling on and off like conventional equipment. This inverter technology delivers several real advantages:

  • Higher energy efficiency - An inverter compressor adjusts its output to match the actual cooling or heating demand in real time. Instead of running at full blast and shutting off repeatedly, it operates at precisely the capacity needed, consuming significantly less energy than a traditional system cycling between on and off.
  • Quieter operation - Because the compressor is not slamming between full power and full stop, the noise profile is dramatically lower. Indoor heads produce a gentle, consistent airflow rather than the surge-and-silence pattern of conventional equipment.
  • Precise temperature control - Inverter-driven systems maintain room temperature within a tighter band than on/off systems. You set a temperature, and the system holds it with minimal fluctuation - which matters for comfort, especially during the extreme North Texas summer heat.
  • Independent zone control - In a multi-zone installation, each indoor head has its own thermostat and operates independently. You can keep the bedroom at 72 degrees while the home office runs at 68 - or turn off zones that are unoccupied entirely.

These are not theoretical benefits. They translate directly into lower energy bills, better comfort, and less wear on the equipment over its lifetime. But capturing those benefits requires professional installation - not just in the physical sense of mounting units and running lines, but in the engineering sense of properly sizing the system, selecting the right equipment, and configuring it for your specific application.

Ready to Add Ductless Comfort to Your Home?

Whether you need a single-zone solution for one room or a multi-zone system that replaces your entire ducted setup, the first step is the same - a proper assessment by an experienced installer who understands both the technology and the North Texas climate demands it will face.

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Applications

Where Mini-Split Installation Solves Real Problems in Plano, TX Homes

Over 50 years of HVAC work in the North Texas area has shown us exactly where ductless mini-splits make the most sense. These are not hypothetical scenarios - they are the situations our installation team encounters regularly across Plano, Frisco, McKinney, and surrounding communities.

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Home Additions & Conversions

You added a sunroom, converted a garage into a living space, finished a room above the garage, or built out an attic space. Your existing ducted system was not designed to condition this extra square footage, and extending ductwork to reach the new space is often impractical, expensive, or structurally complicated. A mini-split gives the new room its own dedicated heating and cooling with minimal construction - a small hole through the wall for the refrigerant lines and a discrete indoor head mounted in the room.

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Older Homes Without Ductwork

Many established neighborhoods in Plano and across North Texas feature homes that were built without central duct systems, or with ductwork that has deteriorated beyond practical repair. Installing new ductwork in a finished home is invasive and expensive. A multi-zone mini-split system can condition the entire home through strategically placed indoor heads - no soffits, no ceiling drops, no torn-up walls.

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Hot and Cold Spots

If certain rooms in your home are always too hot or too cold despite your ducted system running, a mini-split in those specific zones solves the problem at the source. Instead of overworking your central system or accepting uneven temperatures, a ductless unit delivers targeted conditioning exactly where it is needed.

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Home Offices & Studios

The shift to remote work has created demand for comfortable, independently controlled workspaces. A mini-split in your home office gives you precise temperature control without affecting the rest of the house - and without the noise of a window unit disrupting video calls or concentration.

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Multi-Generational Living

When family members share a home but have different comfort preferences, zone-by-zone control eliminates thermostat conflicts. Each person controls their own space independently.

In many of these applications, the comfort and efficiency of your mini-split can be further enhanced with proper insulation. Our blown-in insulation services reduce the thermal load your ductless system has to overcome - allowing the inverter compressor to operate at lower capacity, which means lower energy costs and longer equipment life.

Our Process

Our Mini-Split Installation Process

Installing a ductless mini-split correctly is not a matter of mounting a box on the wall and connecting some pipes. Proper installation requires engineering judgment, product knowledge, and trade skills that directly affect how well the system performs and how long it lasts. Here is how we approach every installation at Trotter Air Services.

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Step 1: In-Home Assessment and Load Calculation

Before we recommend any equipment, we assess the space. We evaluate the room size, ceiling height, insulation quality, window exposure, sun orientation, and the thermal characteristics of the structure. In North Texas, where summer temperatures regularly exceed 100 degrees, the cooling load calculation must account for the extreme heat gain these homes experience from June through September.

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Step 2: Equipment Selection

Based on the load calculation and your specific needs, we recommend the right Armstrong or Samsung mini-split system for your application. This includes selecting the correct outdoor unit capacity, the right number and type of indoor heads, and the appropriate configuration for your zones.

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Step 3: Professional Installation

Our NATE-certified technicians handle every aspect of the physical installation:

  • Indoor head mounting at optimal height and position
  • Refrigerant line routing with proper insulation
  • Outdoor unit placement with adequate clearance
  • Code-compliant electrical connections
  • Vacuum and proper refrigerant charge
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Step 4: System Commissioning and Testing

Once the installation is complete, we commission the system - running it through full heating and cooling cycles, verifying that every zone reaches its target temperature, checking refrigerant pressures and electrical readings against manufacturer baselines, and confirming that the controls, timers, and remote functions operate correctly. You receive a complete walkthrough of your new system's operation, maintenance requirements, and warranty coverage.

Our Brands

Armstrong and Samsung Mini-Split Systems We Install

We have selected Armstrong and Samsung as our primary mini-split brands because they deliver the performance, reliability, and efficiency that North Texas homeowners need.

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Samsung Mini-Split Systems

Samsung has established itself as a technology leader in the ductless mini-split market. Their systems feature digital inverter compressors, advanced WiFi-enabled controls, and innovative air distribution technology.

Samsung's WindFree cooling disperses air through thousands of micro-holes in the indoor head, creating a draft-free cooling experience that maintains comfort without the sensation of cold air blowing directly on you.

We install Samsung single-zone and multi-zone configurations and have extensive experience with their product line. Our technicians understand Samsung's installation requirements, wiring configurations, and commissioning procedures - which means your system is set up correctly from day one. For a deeper look at the WindFree lineup, applications, and features, see our dedicated Samsung mini-split systems page.

Already have a different brand? Our technicians service and repair all brands and models of HVAC equipment - regardless of who manufactured or installed it.

Popular Ductless Brands

Popular Ductless Brands We Install: How Samsung, Mitsubishi, and LG Compare

While our deepest expertise is with Armstrong and Samsung ductless equipment, Plano homeowners often arrive with research already done - frequently asking how the leading mini-split brands stack up against each other. We service all major brands, and here is a straightforward comparison of the three names most commonly considered for a residential install in North Texas:

Brand Distinctive Feature Best Suited For
Samsung WindFree cooling disperses air through thousands of micro-holes for draft-free comfort. Strong WiFi-enabled controls and modern indoor head designs. Bedrooms, home offices, and rooms where direct airflow on occupants is uncomfortable.
Mitsubishi Hyper-Heat models maintain rated heating capacity at low outdoor temperatures. Extensive multi-zone product line and long-established reputation in the ductless category. Homeowners who want a long track record from the brand that helped pioneer the residential ductless category. Useful for the rare North Texas cold snap.
LG Inverter compressors with broad operating range. Wall-mount, floor-mount, and ceiling-cassette indoor head options across the product line. Whole-home multi-zone applications where indoor head form factor varies room-to-room.

For most Plano single-zone applications, the differences between these brands at the operational level are smaller than the manufacturers' marketing suggests - all three deliver inverter-driven efficiency, multi-stage compressor modulation, and quiet indoor heads. Where the differences matter more is in multi-zone configurations, in cold-weather performance, and in the specific indoor head styles available for your room. Our load calculation and equipment selection conversation covers the trade-offs for your specific application so you are not picking a brand from a marketing page alone.

Whichever brand you choose, the install determines the outcome. A perfectly engineered Samsung system poorly installed will underperform; a competently installed Mitsubishi or LG system will perform to spec. Our NATE-certified technicians install all three correctly.

Zone Configurations

Mini-Split Cost in Plano, TX by Zone Configuration

Mini-split installation pricing varies widely based on the number of zones, the outdoor unit capacity, line-set length, electrical work required, and the specific brand and model selected. The table below shows the typical zone tiers we install in Plano and the applications each tier best fits. We do not publish dollar figures here because the right number for your project depends on factors we evaluate during the in-home assessment. Call 972-424-9233 for a written estimate after we see the space.

Zone Tier Configuration Best For
Single-Zone One outdoor condenser paired with one indoor head, typically 9,000-24,000 BTU. Garage conversions, sunrooms, home offices, additions, master bedrooms, attic conversions. The most common Plano install.
Dual-Zone One outdoor unit serving two indoor heads on independent thermostats. Two-room additions, paired bedrooms, or a bonus room plus an attached office. Each zone runs independently.
Three-Zone One outdoor unit serving three indoor heads. Capacity scales with zone count. Older Plano homes without ductwork conditioning a central living area plus two bedrooms. Multi-generational living situations.
Four to Five-Zone One outdoor unit serving four or five indoor heads with substantial total capacity. Whole-home ductless replacement in homes without practical ductwork. Larger additions or accessory dwelling units.
Ceiling-Cassette or Floor-Mount Variants Indoor heads in ceiling-cassette or floor-mount configurations instead of wall-mount. Rooms where wall-mount is not aesthetically or functionally appropriate. Premium over standard wall-mount per head.

Service Finance financing is available for qualifying customers on mini-split installations. We can walk through financing options during the in-home assessment so the right zone configuration is not constrained by upfront cash alone.

Proper Sizing

Sizing Your Mini-Split Correctly for the North Texas Climate

Equipment sizing is the single most important factor in a successful mini-split installation, and it is where many installations go wrong. An undersized system cannot keep up with the cooling demand during a Plano summer when outdoor temperatures hold above 100 degrees for weeks at a time. An oversized system cools the room too quickly, shutting down before it has adequately dehumidified the air - leaving you with a cold, clammy space instead of a comfortable one.

Correct sizing accounts for:

  • Room dimensions and ceiling height - The volume of air that needs conditioning
  • Insulation levels - Walls, ceiling, and floor insulation directly affect heat gain and loss
  • Window area, type, and orientation - South and west-facing windows in North Texas admit significant solar heat gain during summer
  • Occupancy and heat-generating equipment - The number of people, computers, lighting, and appliances in the space contribute internal heat
  • Climate zone demands - The DFW Metroplex sits in a climate zone where cooling loads dominate for roughly six months of the year, with brief but occasionally intense heating demands during winter cold snaps

Our load calculations follow Manual J methodology, adapted for the specific demands of the North Texas climate. This is not guesswork - it is engineering applied to your specific space. The result is a system that delivers consistent comfort, operates efficiently, and lasts for its full expected lifespan.

Proper insulation is a critical factor in mini-split sizing. If your home's insulation is inadequate, the system must work harder to maintain temperature - increasing energy costs and component wear. Our blown-in insulation services can address insulation deficiencies before or alongside your mini-split installation, ensuring the system is sized for an efficient building envelope.

Why Choose Us

Why North Texas Homeowners Trust Trotter Air Services for Mini-Split Installation

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Over 50 Years of Family HVAC Expertise

Trotter Air Services was founded in 1970 - over half a century of serving Plano and the surrounding communities. Three generations of the Trotter family have built this business on technical competence, honest communication, and treating every home like our own.

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NATE-Certified Installation Technicians

Every technician who installs mini-split systems for Trotter Air Services holds NATE certification - the HVAC industry's most respected credential for technical knowledge. NATE-certified professionals have demonstrated proficiency in system design, installation practices, and refrigerant handling through rigorous examination and continuing education.

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BBB Accredited and Texas Licensed

We are a BBB Accredited business and hold Texas HVAC License # TACLA50795E. We carry full liability insurance and meet every credentialing requirement the state of Texas mandates.

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Armstrong ProTeam Dealer

Our Armstrong ProTeam dealer designation reflects the overall caliber of our HVAC operation. Achieving ProTeam status requires meeting demanding standards for technical skill, customer satisfaction, and business integrity.

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For Every Budget

Flexible Financing Options

We believe everyone deserves a comfortable home, regardless of budget constraints. That's why we work with trusted financing providers to make quality HVAC equipment accessible to more families across Plano, TX and Greater Dallas.

A new HVAC system is a significant investment, but it's also one that pays dividends in comfort, efficiency, and peace of mind. Our financing options help you spread that investment over time while enjoying the benefits immediately.

Financing Benefits

Get approved in minutes without impacting your credit score

Pay off your balance early without extra fees

Multiple rate options to fit your financial situation

Special promotional periods available on qualifying purchases

Choose monthly payments that work with your budget

Easy account access and payment options

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Service Finance Company, LLC

Service Finance specializes in home improvement. Their streamlined process and competitive rates make upgrading your HVAC system easier than ever.

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Maintenance Plans

Protecting Your New Mini-Split Investment With Maintenance

A properly installed mini-split system is built to last 15 to 20 years - but only with regular professional maintenance. The compact design of ductless indoor heads means that dust, biological growth, and condensate-related issues develop faster than in a large ducted air handler. In the humid North Texas climate, annual professional maintenance is essential to preserve efficiency, prevent odor issues, and protect your equipment warranty.

Our mini-split maintenance program includes deep cleaning of every indoor head, condensate drain service, refrigerant evaluation, electrical inspection, and full system performance testing. We recommend scheduling your first maintenance visit approximately 12 months after installation - and annually thereafter.

We offer both Residential and Commercial maintenance plans that provide scheduled service, priority booking, and early problem detection. A maintenance plan ensures your new mini-split continues performing the way it did on day one.

Explore our Residential and Commercial maintenance plans and choose the coverage that fits your needs.

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Climate Considerations

The North Texas Climate and Your Mini-Split Installation

The DFW Metroplex climate creates specific demands that directly affect how we design and install ductless mini-split systems.

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Extreme Summer Heat

Plano and surrounding North Texas communities regularly see temperatures above 100 degrees from June through September. Your mini-split's outdoor compressor will run at sustained high capacity during these months, and the system must be sized with enough headroom to maintain comfort even on the hottest days.

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Humidity Management

North Texas summers are not just hot - they are humid. A properly sized and installed mini-split dehumidifies the air as it cools, but an oversized system short-cycles and fails to remove adequate moisture. Our sizing calculations account for latent heat load - the moisture removal component.

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Winter Heating Capability

While North Texas winters are generally mild, ice storms and cold snaps can push temperatures into the teens. Mini-splits operating in heat pump mode extract heat from the outdoor air and transfer it inside - a process that becomes less efficient as outdoor temperatures drop.

For homes where humidity is a persistent challenge, our humidifier and dehumidification services provide dedicated humidity control that works alongside your mini-split to maintain the ideal moisture balance year-round.

Enhance Your Comfort

What Every Mini-Split Installation From Trotter Air Services Includes

When you choose us for your ductless mini-split installation, here is what you receive:

  • In-home load calculation - Manual J-based sizing for your specific space, accounting for North Texas climate extremes and building characteristics.
  • Equipment selection guidance - Honest recommendations based on your needs, not upselling. We help you choose between Armstrong and Samsung options with clear explanations of each.
  • Professional installation - NATE-certified technicians handling every aspect from mounting and line routing to electrical connections, vacuum, charge, and commissioning.
  • Complete system testing - Full operational verification in both cooling and heating modes before we consider the job finished.
  • Owner walkthrough - Hands-on instruction on operating your new system, understanding the remote control or app functions, and maintaining the equipment between professional visits.
  • Warranty documentation - Complete paperwork for manufacturer and labor warranties, so you have full coverage from day one.
  • Licensed and insured - Texas HVAC License # TACLA50795E. BBB Accredited. Full liability insurance on every installation.
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Air Filtration

Clean air matters just as much as comfortable temperatures. Our air filtration and air cleaner services can complement your new mini-split system by capturing allergens, dust, and airborne contaminants that standard filters cannot address - keeping the air in your newly conditioned space as clean as it is comfortable.

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UV Lights

Concerned about the air quality in your home? Our UV light installation services provide continuous disinfection of airborne microorganisms, working alongside your mini-split to keep the air in every zone as clean as it is comfortable.

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Insulation Services

Proper insulation is a critical factor in mini-split sizing. Our blown-in insulation services can address insulation deficiencies before or alongside your mini-split installation, ensuring the system is sized for an efficient building envelope.

Outside Plano? We install the same load-calculated ductless systems across the area: see mini-split installation in Frisco, TX and mini-split installation in Allen, TX. And if you are weighing whether a ductless zone, a hybrid setup, or whole-home zoning fits your situation, our AC zoning guide walks through the options.

More Mini-Split Services

Browse everything we offer for mini-split systems in Plano, TX.

Trotter Air Services Service Area
Our Service Area

Proudly Serving Plano, TX & Greater Dallas Since 1970

For over five decades, we've been the HVAC company that Greater Dallas families call first. Our service area has grown along with the communities we serve, and today we're proud to provide expert heating, cooling, and indoor air quality services throughout the region.

When you call Trotter Air Services, you're not getting a national franchise or an out-of-town contractor who doesn't understand local conditions. You're getting a team of Dallas natives who know the unique challenges our Texas climate presents - from scorching summer heat to unexpected winter freezes.

Serving Communities Around:

Not Sure if We Service Your Area?

Chances are we can help! We've served the Greater Dallas area for three generations, so please call 972-424-9233 or contact us today to see if we come out to your area.

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FAQ

Frequently Asked Questions About Mini-Split Installation in Plano, TX

Every installation is different. The cost depends on the number of zones, the equipment selected, the complexity of the line routing, electrical requirements, and the specific characteristics of your home. We provide a detailed, transparent estimate after our in-home assessment - no surprises, no hidden fees. We also offer financing through Service Finance to help make the investment manageable.

A single-zone installation typically takes one day. Multi-zone installations - three or more indoor heads connected to one outdoor unit - usually require one to two days depending on the complexity of the line routing and electrical work. We respect your home and your schedule, and we communicate the expected timeline before work begins.

Yes. The Armstrong and Samsung mini-split systems we install are heat pumps - they provide both cooling and heating from a single system. In cooling mode, they extract heat from indoor air and release it outside. In heating mode, they reverse the process, pulling heat from the outdoor air into your home. This makes them efficient year-round comfort solutions for North Texas.

Indoor heads are typically wall-mounted high on the wall in the room being conditioned. Depending on the application and manufacturer options, ceiling-cassette and floor-mounted configurations may also be available. We recommend the mounting location that provides the best air distribution for each room's layout and use.

A single outdoor unit can typically support one to five indoor heads, depending on the model and capacity. Each indoor head serves one zone - usually one room or open area. During our assessment, we determine how many zones you need and select an outdoor unit with the capacity to serve them all efficiently.

In the right application, yes. Mini-splits eliminate the energy losses associated with ductwork - which can account for 20 to 30 percent of a ducted system's energy consumption. The inverter-driven compressors in Armstrong and Samsung mini-splits also operate more efficiently than the on/off compressors in many traditional systems. For conditioning specific zones without running a whole-house system, mini-splits are significantly more efficient.

A professionally installed mini-split system that solves a genuine comfort problem - like conditioning a previously unconditioned space - adds functional value to your home. Buyers and appraisers recognize the benefit of heating and cooling in spaces that were previously uncomfortable or unusable.

Mini-split indoor heads are among the quietest HVAC equipment available. Most operate at sound levels between 19 and 32 decibels - comparable to a whisper or a quiet library. The outdoor compressor is also significantly quieter than a conventional air conditioner condenser, especially at partial load when the inverter is running at reduced speed.

No - that is the fundamental advantage of ductless technology. The indoor and outdoor units are connected by refrigerant lines, a condensate drain, and a communication cable that pass through a small opening in the exterior wall (typically 3 inches in diameter). No ductwork is needed.

Our deepest expertise is with Armstrong and Samsung ductless equipment. We also routinely install and service other popular brands including Mitsubishi and LG. See the brand comparison table above for how Samsung WindFree, Mitsubishi Hyper-Heat, and LG inverter systems differ at the operational level. We recommend the brand and model that best matches your specific application, efficiency goals, and budget.

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Trotter Air Services - Mini-Split Installation Experts in Plano, TX

Let's Get Started - Schedule Your Mini-Split Installation

Every home has spaces that deserve better comfort - and not every space needs a full ducted system to get it. A ductless mini-split delivers targeted heating and cooling with inverter-driven efficiency, whisper-quiet operation, and zone-by-zone control that puts comfort exactly where you want it.

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50+ Years of Trust

Trotter Air Services has been the name Plano, TX homeowners trust since 1970. Three generations of our family have built this company by doing HVAC work the right way - proper sizing, professional installation, honest communication, and standing behind every job. We are BBB Accredited, our technicians are NATE-certified, we hold Texas HVAC License # TACLA50795E, and our Armstrong ProTeam dealer status reflects a commitment to excellence that touches everything we do.

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Engineered Comfort Solutions

When you call us for a mini-split installation, you get more than a box on a wall and lines through a hole. You get an engineered comfort solution - load-calculated for your specific space, installed with precision by trained professionals, fully commissioned and tested, and backed by a family business that has been earning the trust of North Texas homeowners for over half a century.

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Complete Mini-Split Care

Already have a mini-split that needs attention? Our mini-split repair services handle everything from error codes and refrigerant issues to compressor and inverter board failures. Want to keep your new or existing mini-split running at peak performance? Our mini-split maintenance program provides the professional deep cleaning, inspection, and testing your ductless system needs to last 15 to 20 years.

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