We design and install complete systems for your home or business. We hire and train skilled professionals with integrity and respect, and we work hard to make your experience positive and trouble-free. We employ NATE Certified Technicians. What does that mean? North American Technician Excellence, Inc. (NATE) is the nation’s leading installation and service certification program for heating, ventilation, air-conditioning, and refrigeration (HVAC/R) technicians. With NATE certified technicians on the job; you can relax, since your job will be completed professionally, efficiently and safely.
We won’t surprise you.
We provide you with superior products and service. We take our responsibility—and your trust in us—very seriously. We’ll always tell you beforehand what your cost will be, and we review the system with you. We don’t believe in surprises.
Our work is guaranteed.
This is more than our philosophy. We provide a written guarantee when you choose us for your installation:
“If at any time during the first year of installation, you are not 100% satisfied with the performance of the equipment, our service or even our people, we will, within 30 days of your request, remove the system and cheerfully refund the entire amount of the contract.”
And, we guarantee your satisfaction.
This is one reason people continue to choose us, and why we have more satisfied customers every year. We’re pleased to be accredited by both the Better Business Bureau and the Building Performance Institute. Call us today and experience the Collis difference.
GreenHomes America is the single unbiased source more homeowners turn to for improving the comfort, livability, air quality, safety, durability and energy efficiency of their homes. And in the process they increase the resale value of their homes.
I am a 10 year customer: bought a furnace, air conditioning unit with yearly maintenance on both, had our vents cleaned and multiple oil deliveries. I consistently receive excellent service. They keep me updated on appointments. When I call, I get someone on the phone quickly and it even sounds like I am a priority when scheduling appointments. I am so glad to have a business I can trust and rely on. Most recently, Jim C serviced our furnace. He was friendly, professional and prompt.
I never thought that replacing my hot water heater and furnace would be this easy. I also added on of a humidifier. If you are on the fence about investing in a whole house humidifier, please, go for it! It makes an incredible difference. The air stays warmer longer and my dry skin is loving it. The installation crew did an excellent job. Not one piece of construction garbage or spair screw to be seen. I would not choose any other company to maintain my homes utilities.
We've been Collis customers for a number of years and have never had a negative experience with either sales or service. Our last service call was an excellent example. Our service tech kept me up to date on his arrival time, worked quickly and advised me of the issues he found with our furnace/boiler, and made the repairs we needed within an hour. We're always made to feel as if we're a part of the family when we call with a service need and appreciate the courtesy and attitude of the service techs who have visited our house.
From my call to Collis & Sons until the job was complete, the service was outstanding. I have used Collis since I purchased my home and whether I need oil or service they have done a great job. For my latest service I had Matt as my tech. This is the second time Matt has been my tech and both times the service was 5 star. He takes the time to talk about what he will be doing and then lets you know what the issue could be. He is very professional and makes sure the work is complete.
I wanted to have my heating oil boiler replaced with a high efficiency direct vent propane boiler. I called several local companies to get estimates. I took all the estimates and looked at each company. I wanted a company that could service what they sell. My previous boiler was installed by collis, and when I had issues and needed service they were always here quickly, the techs were always friendly, and they always made sure to keep my house clean. I narrowed it down to the three best estimates and companies. Collis not only gave me the best price., but their scope of work far exceeded the others. The system in my house is very complex . They did an amazing job and the installer Kenny did a beautiful just with all his copper work reloacation the boiler and wiring. I highly recommend Collis. Dave Collis came out several times and desgined a beautiful system. The installer Kenny and techs that came out to help him not only did an amazing job but are very courteous and friendly. Highly recommend them!!