Get Quotes Contact Us Sign In
Website
Call
We are your heating and A/C installation, maintenance, and repair specialists focused entirely on your satisfaction. We have made it our number one priority to offer affordable heating repair service and heating installation. We employ the best technicians, who are background checked and dedicated to ensuring you are most comfortable. When it comes to summer, having a reliable cooling system is vital to the overall comfort in your home. From air conditioning tune ups to system replacement, our professional, experienced staff will have your peace of mind at the top of ours.
Follow us
Services
Annual maintenance reduces the likelihood of premature failures and prolongs the lifespan of your equipment. If you're looking for more value from your HVAC contractor, Absolute Mechanical Systems will deliver it. Browse our current financing offers and see how we can help you.
For heating repair in Southern New Hampshire and parts of Massachusetts, Absolute Mechanical Systems is the right call to make. Whatever the model, style, or age of your heating system, we prioritize cost-effective and lasting solutions. Equipped with industry-leading technology, our NATE-certified team completes accurate diagnosis, pinpoints problems, and provides honest answers.
Living in Southern New Hampshire and parts of Massachusetts, your heating system has a significant impact on budget, comfort, safety, air quality, and enjoyment of your home. Keeping essential equipment in peak working order is a priority, and requires annual, professional service. At Absolute Mechanical Systems, we understand your busy life sometimes gets in the way of HVAC maintenance.
Whether you're installing new, replacing old, or simply in the planning stages, call on Absolute Mechanical Systems at (603) 249-9800 for honest recommendations, a wide selection of proven products, and unequalled integrity of job performance. Our standards of quality add up to greater value from your investment.
Reviews (22)
Write a Review
Karen Steuer
Feb 12, 2022
Woke up to furnace not working properly. Called to either have a walk-through of issues or have someone come out to take a look. They installed furnace in 2020, serviced in 2021. Now, no longer servicing my area (no notice) and was told to call someone else. Not pleased. ETA: More local? We are 20 minutes away from you. I know you said you're short staffed and I can empathize.

But from a customer's perspective, having had two heating systems installed by your company (including taking recommendations on said systems) within two years --and thousands of dollars -- and being told you no longer service my community (that's what you said first, then said you were short staffed) was a shock. Maybe when you make those decisions in the future (ceasing to serve smaller towns), notify the loyal customers that are impacted so that when they call, needing your service and support, they aren't blindsided and given a short "Sorry."
Kale Stenersen
Jan 10, 2022
I have had great experiences with Absolute Mechanical. They installed my HVAC system with a Hybrid Heat Pump/Gas Furnace and I've had it for 5.5 years now and I still like the system. I have had a couple small things come up, which might be typical with a system over a 5.5 year period, and Kevin is always very responsive. Shawn and Shaun did the majority of the work on the installation and were great to work with. Carl came out and serviced the system at one point and was respectful in the home. A great experience overall for sure.
Philip Bouchard
Dec 20, 2021
I am a first time customer. Day one was to service my oil-fired furnace. During the servicing Mike found an issue that could be a problem during the winter. The next day they submitted a quote, found the items needed to correct issue, came back to my house and fixed the problem. WOW! THANK YOU ABSOLUTE MECHANICAL
Andy Giroux
Dec 07, 2021
They are great. Our furnace would not run and needed work, but we asked if they could do a new install for us. They fit us in that night and worked after hours to get it done. No issues so far and everything is working great. We are so grateful and could not recommend them more.
Buz Off
Sep 04, 2021
Mixed experience. Outstanding on split duct installation. Oil burner maintenance, sometimes goes well, other times not so good (maintenance service broke its previously fine operation). Could use service, again, and but find I'm now apprehensive. Services: AC installation, Heating system repair, Heating maintenance
Marty Bade
Aug 31, 2021
I contacted three HVAC companies for a replacement of my existing heat pump system. Company A: supplied a quote on the spot and I next received a follow up that I should order now because of price increases in August. Company B: quote received within one day - discount if I signed before end of month. My experience with Kevin at Absolute Mechanical (family owned business) was excellent. Kevin came out examined the existing installation, we discussed several options regarding equipment capacity, warranties, and cost of ownership.

I graded all three bids using the following criteria: Quality of Equipment, confidence in the company personnel, and price. Hands down Absolute came in on top. Installation was scheduled and they arrived on time, Crew was professional, courteous, and completed the installation by early afternoon. I then had an inspection of their work, a tutorial on how to program and use the thermostat and later a follow up call regarding my experience. Even though other companies carry the same equipment, the deal maker for me was the personal interaction with the folks at Absolute Mechanical.
David J. Sanborn
Aug 12, 2021
I highly recommend this company for your HVAC needs/ services. We have used them twice for our home AC repair and both times they diagnosed and repaired it effectively and cost efficient. A GREAT Company with professional employees who know their field! . Thank you Mike and Kevin!
David J. Sanborn
Aug 12, 2021
I highly recommend this company for your HVAC needs/ services. We have used them twice for our home AC repair and both times they diagnosed and repaired it effectively and cost efficient. A GREAT Company with professional employees who know their field! 👍. Thank you Mike and Kevin!!
John Nicholson
Jun 25, 2021
These guys have helped me out several times on short notice. Fair prices and knowledgeable technicians. Most recently my hot water was out. I called and the same day they got a technician out and he fixed the problem. My furnace starter motor had died. They were shorthanded, but went above and beyond to get to me, even though they were booked for the day. I appreciate that kind of effort very much.
Gary Zimmerman
Apr 07, 2021
Another professional job by Absolute Mechanical. We've been using them for 12+ years. They just left after installing a ductless mini split heat pump. Couldn't have been more professional from initial visit for estimate to installation. Competitive price and great service - they can't be beat! Service: Install AC
Charlie Seddon
Jan 25, 2021
Mike responded on the coldest day of the year, on an early Sunday morning, when our furnace would not fire. Mike was cheerful and helpful and had our furnace up and running within an hour. Thanks, Mike. Service: Heating maintenance
Vincent Pothier
Oct 22, 2020
Very professional. Answered all the questions I had while they were installing the air conditioning system. Made sure I understood the system before they left. Would not hesitate to recommend Absolute Mechanical Systems. Shaun was excellent and took the time to answer all our concerns.
John Rein
Sep 09, 2020
Kevin and the crew did a superb job replacing our 40 year old ac and heating system last summer. Like most people I didn't call till I had a major failure- no ac in July. They squeezed us in on a Saturday and did everything in a day. Our utility bills have been cut about 40%. Thank you.
Bob Hazard
Jun 09, 2020
These guys (and girls) are phenomenal! Quick to respond, excellent attitudes and service.highly recommended! Thank you!
Kathleen Bourn
Apr 27, 2020
Staff & Crew were excellent and very experienced with our installation for our 3 Fujitsu Air Conditioners (split/pump), all done in a day including one condenser. Kevin directed me where to get rebates, I am still not over how much more comfortable the house is. Someday when we downsize, if our future house does not have these, Absolute will be the first contractors I will call. Best investment we made, great warranty, we HIGHLY recommend them.
Lori L.
Apr 19, 2020
20+ years satisfied customer! They treated my need for a new furnace and AC as if it were their own home. The Absolute Mechanical team has always been prompt and courteous. Glad to be a long time customer.
Nicole Moriah Letourneau
Nov 13, 2019
Absolute Mechanical is phenomenal. I called Tina at 10:30am and she had Mike out by 12:30pm. He was highly knowledgeable and his customer service was excellent. I absolutely recommend this company! If I could give them a sixth star I would!
Nicole Moriah Letourneau
Nov 13, 2019
Absolute Mechanical is phenomenal. I called Tina at 10:30am and she had Mike out by 12:30pm. He was highly knowledgeable and his customer service was excellent. I absolutely recommend this company! If I could give them a sixth star I would!
Jamie Zisk
Oct 29, 2019
Huge shout out to these people for helping me with a situation I needed to figure out my next move!!! Super fast and actually recommended a visit after I found out what I needed to do next so that I wouldn’t waste money!!!
That’s true service!!!! Thank you everyone!!
Tom Rogers
Aug 08, 2019
A big shout out to Absolute Mechanical for their quick response to my air conditioner not working last night. I called and spoke to Tina at 8:00 and the unit had a new condenser and was up and running by 9:00! Mike and Nate were awesome!
Stacey N
Jun 24, 2018
Without question, the very best experience I’ve ever had with any specialty service business. Kevin proved to be not only a true master of his craft, but just as important to me, a genuinely good guy. If you live anywhere near Brookline and are in need of these types of services, I strongly recommend going to Absolute first. You won’t go anywhere else once you have.
Eric Roth
Dec 12, 2017
Had a new furnace and AC installed. Great service and went out of their way to get it done before we moved into our new home. Everyone was very friendly and very professional. If you need HVAC work I highly recommend them!