Certified by Carter Comfort Systems • Aug 16, 2026
HVAC ContractorAir Conditioning ContractorAir Quality ConsultantHeating ContractorWater Heater Service
Carter Comfort Systems has been the trusted name in HVAC repair for Treasure Valley, ID for over three decades. Our family-owned and operated business takes pride in delivering exceptional HVAC services to our community. We understand that your comfort is paramount, which is why we offer a comprehensive range of heating, cooling, and air quality solutions tailored to meet your specific needs. Our team of highly skilled technicians is trained to work with all makes and models of HVAC units, ensuring that we can address any issue you might face. Whether you need routine maintenance, an emergency AC repair, or a complete system installation, we're here to ensure your home or business maintains optimal comfort year-round.
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Certified by Carter Comfort Systems • Aug 16, 2026
When your air conditioner breaks down in the Treasure Valley heat, you need reliable AC repair services fast. Carter Comfort Systems is here to help with prompt, professional air conditioning repair. We work with all makes and models of HVAC units, providing expert diagnostics and repairs to get your system cooling efficiently again.
Carter Comfort Systems is your trusted partner for specialized HVAC services in Treasure Valley, ID. With over three decades of experience, we've honed our skills to provide exceptional heating and cooling solutions tailored to the unique needs of our community. Our team of highly trained technicians is equipped to handle a wide range of HVAC challenges, ensuring your home or business maintains optimal comfort year-round.
When your heating or cooling system fails unexpectedly, Carter Comfort Systems is here to help. We provide swift, efficient emergency HVAC repair services throughout Treasure Valley, ID. Our team of highly skilled technicians is ready to respond 24/7, ensuring your comfort is restored as quickly as possible. We work with all makes and models of HVAC units, including but not limited to Trane, Navien, and Mitsubishi. Reach out to us for immediate assistance with your HVAC emergency.
For over three decades, Carter Comfort Systems has been a reliable residential and commercial HVAC company serving Treasure Valley, ID. Our family-owned and operated business takes pride in delivering exceptional heating solutions tailored to your specific needs. We understand that a comfortable home starts with a properly functioning heating system, which is why every HVAC service we provide is comprehensive and designed to keep you warm and cozy throughout the chilly Idaho winters.
Carter Comfort Systems - S
31 items
services
Air Conditioning Installation Services
Air Conditioning Maintenance Services
Air Conditioning Repair Services
Air Conditioning Tune-Up Services
Advanced Filtration System Services
Air Duct Installation Services
Air Duct Repair Services
Air Filtration Installation Services
Air Purifier Installation Services
Carbon Monoxide Testing Company Services
Custom Ductwork Services
Emergency Heating and Air Repair Services
Energy Efficient Systems Services
Fall and Winter HVAC Maintenance Services
Furnace Inspection Services
Furnace Maintenance Services
Heat Pump Installation Services
Heater and Furnace Installation Services
Heater and Furnace Maintenance Services
Heater and Furnace Repair Services
Humidifier Installation Services
HVAC Inspection Services
HVAC System Evaluation Services
HVAC Zoning Services
Mini-Split Installation Services
Smart Thermostat Installation Services
Spring and Summer HVAC Maintenance Services
Tankless Water Heater Installation Services
Thermostat Repair Services
Ventilation System Installation Services
Water Heater Repair Services
Reviews
5.0
281 reviews
5 stars
276
4 stars3
3 stars0
2 stars1
1 star1
GG
Gini Guy
6 days ago
5.0
I've recommended Carter Comfort for years. They are honest and do quality work.
I've had Carter Comfort upgrade the HVAC systems in five homes (!) over the past 18 years and have always had a fantastic experience. The quality equipment is installed by an experienced, efficient crew. I never have to worry about any issues that might crop up because bi-annual maintenance keeps everything in top notch performance. I never miss that maintenance because Mel always reaches out to get me scheduled. I assume she does that for all their customers but for my forgetful brain, it's a huge comfort!
MY
Mary A Young
Aug 13, 2026
5.0
Andrew G was very efficient and gave plenty of time to my issues with Split Unit. It appears that I had a sloppy wired installation after my apartment was redone after the fire of February 2025. Praying this problem is over!!!
AH
alfred hernandez
Aug 1, 2026
5.0
Andrew Gretzner was very professional answered all my questions and concerns.
Came in on the weekend to help us in need with the 100°F weather and smoke in the air.
Would recomend his service to any of my friends and family.
JH
Jeff Hale
Jul 23, 2026
5.0
Andrew was on time and did a great job. He was very knowledgeable and knew the problem before I remembered to tell him what the last guy that came had done to cause the problem I was having! He spent the time to fix everything and make sure things were running as smoothly as possible. Definitely calling Andrew at Carter Comfort Systems for our HVAC from now on!
KO
Kim St. Ours
Jul 21, 2026
5.0
In 2025 I had Carter Comfort 1) repair my a/c on a sweltering August Sunday (yes, SUNDAY), and 2) replace my furnace and a/c with a new heat pump system. I can confidently tell you that if you need heating/cooling help, Carter Comfort is the place to go. They know what they’re doing, they’re honest, they follow through, and they’re local, not owned by some out-of-state conglomerate. They do quality work with quality products and they back it up 100% with A+ service.
I research everything. I read reviews, I don’t just look at the star rating. And I always get more than one estimate. So when my furnace and a/c system was failing, I gathered bids. I got one from my home warranty company’s recommended vendor, AirServ, one from Arctic Air, and one from Carter Comfort.
AirServ seemed knowledgeable and came out and did their thing, then I got an email that my estimate was ready. I went online to get it and I basically got 2 choices with exactly the same description, one at price X and one at about $3,000 more than price X. Nothing that I could see was different in the vague specs. When I clicked on one of the choices expecting to see an itemization, all it did was ask for my payment info! This was the fault of the home warranty company’s template, it wasn’t AirServ’s fault, nevertheless I decided I didn’t want to deal with a company that had an intermediary I’d have to go through if there were issues.
The second company, Arctic Air, sent a very inexperienced guy out to do the estimate. After spending over an hour measuring things indoors and outdoors and hemming and hawing and saying they’d have to cut holes through walls and redo duct work, he left saying they’d send an estimate… but never did. I never heard from them again.
Then there was Carter Comfort. Barry knew right away what kind of system I needed. They gave me a DETAILED estimate with all the specs and warrantees and even links so I could look up the brands/products for myself. Their estimate included things like annual maintenance visits. They had it installed in a day, and it’s performed flawlessly for the past year. They were the ONLY people who gave me any confidence that they really knew what they were doing. I can’t emphasize that enough.
I just had the first of the two included maintenance visits for my heat pump, and Ethan was thorough, knowledgeable, and professional, as I’ve come to expect from the people at Carter Comfort.
The only hiccup in the entire process was trying to get the energy rebate I was owed from Idaho Power. What was supposed to take a couple of months took 12 months and many phone calls, but I’m not sure who was at fault so I can’t lay that entirely on Carter Comfort.
In a world where dependable service people are as rare as hens’ teeth, Carter Comfort is the answer to a prayer.
Frequently Asked Questions About Carter Comfort Systems
My energy costs are high. Will a new system reduce my costs?
A new heating and air conditioning system can substantially lower your energy expenses. Today's equipment operates much more efficiently thanks to technological improvements and higher minimum efficiency standards. Depending on the efficiency level you choose, you could save between 25% to 60% on heating and cooling costs. With energy prices continuing to rise, investing in high-efficiency equipment makes financial sense. We provide complimentary in-home consultations where our qualified technicians will help you choose a system that reduces your energy bills, improves comfort, and fits your financial situation.
Do you offer financing?
We do offer various financing options to meet different customer needs. Our financing plans feature competitive rates, and the application process is simple and efficient. We would be happy to review your specific requirements and help you find a financing solution that aligns with your budget. Please reach out to us for additional details.
Do I run any risk by accepting the lowest bid?
Accepting the lowest bid can present significant risks. When a bid is considerably lower than others, it may indicate the use of inferior products, poor installation quality, or the exclusion of necessary costs such as permits or required inspections. At Carter Comfort Systems, we manage every aspect of the installation process, allowing you to simply enjoy the improved comfort and energy efficiency of your new system without concerns.
Should I turn off my furnace before I go on vacation to save energy?
For brief vacations, it's more advisable to adjust your thermostat settings rather than completely shutting off your HVAC system. During summer months with air conditioning, setting the temperature to approximately 85 degrees is recommended. In winter, maintaining a temperature of around 60 degrees is appropriate for trips lasting a few days. These temperature settings help protect indoor plants and prevent pipes from freezing and rupturing during cold weather periods.
Why are furnaces and air conditioners so noisy?
Older heating and cooling systems typically generate more noise due to the less sophisticated materials used in their construction. Contemporary systems, particularly those manufactured by Trane, incorporate higher-grade components and noise-reduction technologies. For example, Trane units feature sound insulation on the compressor and a protective weather guard top. These design elements not only reduce operational noise but also contribute to system longevity by preventing debris from entering critical components.
What are the benefits of a programmable thermostat?
Programmable thermostats provide greater control over your home's temperature management. You can program the system to automatically adjust temperatures according to your daily schedule, reducing energy consumption when you're absent and ensuring comfort when you return. This precise temperature control can result in considerable energy savings, potentially reducing heating expenses by up to 15% during winter and cooling costs by 10% in summer months.
Would a new AC unit help me lower my costs during the summer?
Installing a new air conditioning unit can effectively reduce your summer cooling expenses, particularly if your current system is aging. For example, a 15-year-old unit might have a SEER rating as low as 6. Upgrading to a new, energy-efficient Trane air conditioner could save you approximately $600 per summer on a standard 4-ton unit. These savings are achievable while maintaining cooler indoor temperatures compared to the typical energy-conservation setting of 78 degrees.
Is a bigger furnace or air conditioner better?
Despite common misconceptions, larger HVAC systems aren't necessarily better. The key to maximizing comfort, reliability, and efficiency is selecting the appropriate size for your specific requirements. An oversized system can actually result in decreased comfort levels, reduced reliability, and lower efficiency compared to a properly sized unit. We offer various system options, and our experienced technicians can determine the ideal size based on your home characteristics and lifestyle needs.
How big should my system be?
The correct sizing of your HVAC system is essential for optimal performance. An oversized system may experience short cycling, leading to increased energy usage, premature equipment failure, and inconsistent comfort. Conversely, an undersized system might struggle to maintain desired temperatures. Since each home has unique characteristics, our specialists perform detailed calculations to ensure precise system sizing. We encourage you to schedule a free analysis to determine the most appropriate system size for your specific home.
Why is important for me to continue my service agreement?
Continuing your service agreement provides multiple advantages. It helps reduce utility costs, extend equipment life, minimize repair needs, and improve system performance. Additionally, you receive a 15% discount on repairs, priority customer status, inflation protection, round-the-clock emergency service, and no overtime charges. Regular maintenance through a service agreement ensures your HVAC system functions at maximum efficiency, delivering consistent comfort and long-term cost benefits.
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