ac_unit
Central AC Installation Experts
AC Installation in Plano, TX - Armstrong ProTeam Dealer Since 1970
Installing a new central air conditioning system is one of the biggest decisions a homeowner makes. It affects your comfort, your energy bills, and the value of your home for the next 15 to 20 years. At Trotter Air Services, we have been installing central AC systems across Plano, TX and the Greater Dallas area since 1970 - over 50 years of matching the right equipment to the right home, and doing it with the precision that only comes from decades of hands-on experience.
We are a family-owned and operated company. Three generations of Trotters have built this business by treating every installation like it is going into our own home. As an Armstrong ProTeam dealer, we carry one of the most trusted names in the HVAC industry, and we have the factory training to install them exactly the way the manufacturer intended.
Schedule Your AC Installation Consultation
Get Your Free AC Installation Estimate
When Is It Time for a New Central AC System in Plano, TX?
After five decades of installing air conditioning systems in North Texas, we have learned that the decision to replace an AC unit is rarely straightforward. Homeowners want to get every last year out of their existing equipment - and we respect that. We are not the kind of company that pushes replacements when a repair will do. But there are clear signals that tell us when replacement is the smarter investment.
Signs Your Central AC Needs Replacement
Knowing when to stop repairing and start replacing comes down to a few key factors that we evaluate with every customer:
- Age of the system - Central air conditioners in North Texas typically last 12 to 18 years, depending on how well they have been maintained. If your system is approaching or past the 15-year mark, major repairs become harder to justify financially. The components are aging together, and fixing one often reveals the next problem waiting in line.
- Frequency of repairs - A system that needed one repair in the last five years is probably fine to keep running. A system that has needed three or four repairs in the last two years is telling you something. At a certain point, the cumulative cost of repairs exceeds what you would spend on a new, efficient system.
- Rising energy bills - If your electric bills have been climbing over the past few summers despite no changes in your usage patterns, your AC system is likely losing efficiency. Older systems, especially those rated at 10 SEER or below, consume significantly more electricity than modern 14 to 20 SEER equipment.
- Uneven cooling throughout the home - Hot spots and cold spots that were not there when the system was new often indicate that the equipment is no longer capable of meeting the load demands of the house. This is especially common in Plano homes that have been expanded or remodeled since the original system was installed.
- R-22 refrigerant (Freon) - If your system still uses R-22 refrigerant, which was phased out of production, the cost of servicing it will only continue to increase. Replacing the system with one that uses modern R-410A refrigerant eliminates this ongoing expense entirely.
- Excessive noise or cycling - A system that short-cycles, runs constantly without reaching temperature, or has become noticeably louder than it used to be is showing signs of component failure that may not be worth repairing in an older unit.
If you are experiencing any of these issues, we are happy to come out and give you an honest evaluation. We will tell you whether a repair makes more sense or whether it is time to invest in new equipment - and we will explain our reasoning so you can make the decision with confidence.
How to Size a Central AC for a Plano Home
Getting the size right is the single most important decision in a new AC installation - more important than the brand or the SEER rating. An undersized system runs constantly and never keeps up during a Plano heat wave; an oversized one short-cycles, wastes energy, and leaves the air cold but clammy because it shuts off before it dehumidifies. Sizing is not a square-footage rule of thumb - it is a calculation. Here is the process our NATE-certified technicians follow on every installation.
- Measure the conditioned space. Record the square footage, ceiling heights, and volume of every room the system will serve. Air volume, not just floor area, determines the cooling load.
- Run a Manual J load calculation. Use the ACCA Manual J methodology to combine the home's insulation levels, window area and orientation, air infiltration, and internal heat gains into a single design cooling load. This is the engineering step that a tape measure alone cannot replace.
- Account for the North Texas climate and sun exposure. Factor in the Plano design temperature - sustained 100-degree-plus afternoons - and the solar heat gain on south- and west-facing glass. A room baking in western sun carries a bigger load than its size suggests.
- Convert the load into system capacity. Translate the calculated load into tonnage (one ton equals 12,000 BTU per hour) and size the equipment to meet the design load without significant oversizing. Correct sizing keeps runtime long enough to pull humidity out of the air.
- Verify the ductwork and airflow can support it. Confirm the existing ducts can deliver the required airflow (measured in CFM) for the selected capacity. Undersized or leaky ducts choke an otherwise correctly sized system, so any restrictions are corrected before the equipment is set.
We handle every one of these steps as part of the free in-home estimate - you do not need to do the math yourself. But understanding the process is worth it, because any contractor who sizes your system off square footage alone is guessing. Call 972-424-9233 to schedule a proper load calculation for your Plano home.
Armstrong Central AC Systems
As an Armstrong ProTeam dealer, we offer one of the most respected product lines in the HVAC industry. Armstrong builds reliable, efficient air conditioning equipment, and our factory-trained technicians know these products inside and out.
Armstrong Air Conditioners
Our Armstrong ProTeam dealer status represents the highest tier of partnership with Armstrong Air.
More About Armstrong +This means we have completed advanced factory training, maintain the highest standards of installation quality, and have direct access to Armstrong technical support and priority parts distribution.
Armstrong central air conditioners are built for reliable performance and long-term value. Their product line includes systems ranging from dependable single-stage units to advanced variable-speed models with SEER ratings that deliver substantial energy savings. Every Armstrong system we install in Plano comes backed by strong manufacturer warranties, and our ProTeam installation standards ensure those warranties remain fully valid.
Already have a different brand? Our technicians service and repair all brands and models of HVAC equipment - regardless of who manufactured or installed it.
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
Quick Application Process
Get approved in minutes without impacting your credit score
No Prepayment Penalties
Pay off your balance early without extra fees
Competitive Interest Rates
Multiple rate options to fit your financial situation
Deferred Interest Options
Special promotional periods available on qualifying purchases
Flexible Payment Terms
Choose monthly payments that work with your budget
Simple Online Management
Easy account access and payment options
Service Finance Company, LLC
Service Finance specializes in home improvement. Their streamlined process and competitive rates make upgrading your HVAC system easier than ever.
Apply NowProtect Your New Investment with Preventive Maintenance
Your new central AC system is built to last, but only if it receives proper care. Just like a new car needs regular oil changes, your new air conditioner needs annual professional maintenance to maintain peak performance, preserve warranty coverage, and maximize its lifespan.
We offer both Residential and Commercial maintenance plans through Trotter Air Services. Our maintenance program includes comprehensive annual inspections, cleaning, and tune-ups that keep your system running at the efficiency level it was designed to deliver.
Our central AC maintenance program is the best way to protect the investment you are making in new equipment and ensure your system delivers reliable comfort for years to come.
Learn more about our residential and commercial maintenance plans and enroll when your new system is installed.
Sign Up Today north_east Maintenance Plan DetailsWhy Proper Installation Matters More Than the Equipment You Choose
After 50 years in this business, we have learned something that surprises most homeowners: a mid-range AC system installed correctly will outperform a premium system installed poorly. Every single time.
Read More +Industry studies consistently show that a significant percentage of residential HVAC installations have issues - improper refrigerant charge, undersized or leaky ductwork, incorrect airflow settings, or substandard electrical connections. Each of these problems reduces the system's efficiency, shortens its lifespan, and can void the manufacturer's warranty.
At Trotter Air Services, we obsess over installation quality because we have spent 50 years seeing the consequences of poor installation work. When we install a system, it is done right:
Proper Refrigerant Charge
We weigh in the exact amount of refrigerant specified by the manufacturer, then verify the charge with superheat and subcooling measurements.
Correct Airflow
We measure and adjust airflow to match the manufacturer's CFM specifications for maximum cooling capacity and correct dehumidification.
Sealed Duct Connections
Every connection between the new equipment and your ductwork is properly sealed to prevent conditioned air from leaking into unconditioned spaces.
Code-Compliant Electrical
All electrical work meets local building codes and manufacturer requirements to prevent component damage and safety hazards.
Manufacturer Commissioning
Armstrong provides specific startup and commissioning procedures for their equipment. We follow every step.
Complementary Services to Maximize Your New AC System
When you are investing in a new central air conditioning system, it is the perfect time to address other factors that affect your home's comfort and efficiency.
Air Filtration
Adding a whole-home air filtration system at the time of your AC installation keeps your new evaporator coil cleaner, improves indoor air quality, and reduces the maintenance burden on your new equipment - helping it run efficiently for longer.
Explore Air Filtration Services →UV Lights
Installing UV lights inside your new air handler prevents biological growth on the evaporator coil and in the drain pan, maintaining system cleanliness and protecting your family's health from the start.
Explore UV Light Installation Services →Humidity Control
If your home struggles with humidity issues - a common concern in North Texas - our humidification and dehumidification solutions can be integrated with your new system for comprehensive climate control.
Explore Humidifier & Dehumidification Services →Why Plano, TX Homeowners Choose Trotter Air Services for AC Installation
Three Generations of Installation Expertise
Since 1970, three generations of the Trotter family have been installing air conditioning systems in North Texas homes. That institutional knowledge cannot be replicated by a new company or a national franchise.
Armstrong ProTeam Dealer Status
Our ProTeam partnership means we have met Armstrong's highest standards for installation quality, customer satisfaction, and technical training.
NATE-Certified Installation Teams
Our installation technicians hold NATE certification - the industry's gold standard for technical competence - and maintain it through ongoing education.
BBB Accredited & Fully Licensed
Texas HVAC License # TACLA50795E with full insurance coverage. A verified track record of quality and integrity.
Outside Plano? We install the same load-calculated Armstrong systems across the area: see AC installation in Frisco, TX and AC installation in Allen, TX for city-specific details and the neighborhoods we cover.
More Central AC Services
Browse everything we offer for central ac systems in Plano, TX.
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:
Frequently Asked Questions About Central AC Installation in Plano, TX
Most residential central AC installations are completed in one day. A straightforward system replacement - where we are removing the old unit and installing the new one in the same location with compatible ductwork - typically takes 6 to 10 hours. If additional work is needed, such as ductwork modifications, electrical upgrades, or relocating equipment, the installation may extend into a second day. We will give you a clear timeline during your consultation so you know what to expect.
There is no universal answer based on square footage alone. The correct size depends on your home's insulation, window count and orientation, ceiling height, ductwork configuration, number of stories, and local climate conditions. We perform a detailed load calculation for every installation to determine the exact capacity your home requires. Oversizing is just as problematic as undersizing - an oversized system short-cycles, wastes energy, and fails to properly dehumidify your home.
SEER (Seasonal Energy Efficiency Ratio) measures cooling efficiency over an entire season. Higher SEER ratings mean lower electricity consumption. In North Texas, where your AC runs extensively from May through October, the difference between a 15 SEER and an 18 SEER system can mean meaningful monthly savings on your electric bill. We help you weigh the upfront cost difference against long-term savings to find the right balance for your situation.
We strongly recommend replacing the entire system - outdoor condenser and indoor evaporator coil - at the same time. Mixing old and new components creates efficiency mismatches, can void manufacturer warranties, and often leads to premature failure of the older component. The small savings from keeping the old indoor coil are almost always outweighed by the problems it creates down the road.
Not always, but we evaluate your ductwork during every installation consultation. If your existing ductwork is in good condition, properly sized for the new equipment, and reasonably well-sealed, it can remain in place. If we find significant leaks, restrictions, or sizing issues, we will recommend targeted improvements to ensure your new system can deliver its rated performance.
For most Plano homes, a complete central AC installation - outdoor condenser, indoor evaporator coil, and proper commissioning - varies depending on system size, SEER rating, and ductwork condition. We provide a written, all-in price after the in-home load calculation so there are no surprises. Service Finance financing is available for qualified customers.
Armstrong offers strong manufacturer warranties on their equipment, covering major components like the compressor and heat exchanger. The specific warranty terms vary by model and product line. In addition to the manufacturer's warranty, Trotter Air Services stands behind our installation workmanship. We register your warranty with the manufacturer at the time of installation and provide you with all documentation.
Absolutely. We have been installing AC systems in Plano homes from every decade - from 1960s ranch homes to brand-new construction. Older homes sometimes require additional considerations like ductwork modifications or electrical panel upgrades, but our 50 years of experience in this market means we have handled every scenario and know how to work with the unique characteristics of older North Texas homes.
The savings depend on the efficiency of your current system versus the new one, your home's size and insulation, and your cooling usage patterns. However, homeowners replacing an older 10 SEER system with a modern 16 SEER unit can expect meaningful reductions in their summer electricity bills. We can estimate your potential savings during the consultation based on your actual energy usage and the specific equipment options we present.
Yes. We partner with Service Finance to provide flexible financing options for AC installations. Many homeowners find that the monthly energy savings from a new, efficient system offset a significant portion of the financing payment. We walk you through your financing options during the consultation so you can make the decision that fits your budget.
Let's Get Started - Schedule Your Central AC Installation
call 972-424-9233 Contact Us for Installation50+ Years of Trust
Choosing a new central air conditioning system is a significant decision, and choosing the right company to install it matters just as much as choosing the right equipment. At Trotter Air Services, we have spent over 50 years earning the trust of homeowners across Plano, TX and the Greater Dallas area, and we approach every installation with the same care and precision that has kept our family business thriving for three generations.
Built for North Texas
Your home deserves a cooling system that performs reliably through every North Texas summer, installed by a team that knows exactly what it takes to make that happen. Our family has been doing this work since 1970, and we would be honored to put that experience to work for you.
Complete AC Care
If your current system just needs a fix, our central AC repair team can diagnose and resolve the problem - often in a single visit. And to keep any system running at its best, our central AC maintenance program provides the ongoing care your equipment needs to deliver reliable performance year after year.
