Absolute Mechanical Systems optimizes comfort and cost savings with one of the most environmentally friendly heating and cooling systems on the market. Approximately seventy percent of the energy consumed by a geothermal heat pump comes from the free, renewable energy source found in your very own backyard. These high efficiency systems maintain ideal temperature in the average home for around a dollar per day. For a complete range of geothermal services, including new design/install, seasonal maintenance, and repair in Southern New Hampshire and parts of Massachusetts, call on Absolute Mechanical Systems at (603) 249-9800.

Trustworthy Geothermal HVAC Services

Geothermal heat pumps eliminate the combustion process. There’s no burning of fossil-fuels, no byproducts such as carbon monoxide, fumes, hot surfaces, or greenhouse gas emissions. Being 48% more efficient than gas furnaces and 43% more efficient than conventional cooling systems, geothermal heat pumps typically recover the investment within five years. Plus, there’s no need to humidify, because the unit won’t overly dry the air during the winter. In cooling mode, you’ll enjoy exceptional dehumidification, and advanced filtration actively improves indoor air quality.

Call today to learn about all the benefits of a geothermal heating and cooling system!

Interested in perfect year round comfort for far less cost? Explore the many benefits and possibilities of geothermal HVAC. Family owned, Absolute Mechanical Systems provides skilled services, industry leading options, and exceptional value throughout Brookline, NH, Hollis, NH, Milford, NH, Townsend, MA, Pepperell, MA, Amherst, NH, Wilton, NH, Mont Vernon, NH, Greenville, NH, Groton, MA, Ashby, MA, Dunstable, MA, Lunenburg, MA, and Nashua, NH. Dedicated to your satisfaction, our NATE-certified team remains available for Emergency Assistance 24/7.

Serving Southern New Hampshire and parts of Massachusetts

Our Happy Customers

Don’t take our word for it, here’s what our clients have said about Absolute Mechanical Systems

Write a Review

We were so pleased with the service and attention to detail. The staff and installers were amazing.

J. Faucher

Outstanding service second to none. Quick response, and never a hassle. They do quality work at a better than fair price. Highly recommend for heating and ac needs.

D. Gorgolione

Without question, the very best experience I’ve ever had with any specialty service business. If you live anywhere near Brookline and are in need of these types of services, I strongly recommend going to Absolute first.

S. Huffman

Request a Quote

Special Offers

If you're looking for more value from your HVAC contractor, Absolute Mechanical Systems will deliver it. Browse our current specials and see how you can save.

More Special Offers

With new installation of Furnace & AC you get TWO FREE items below:

Whole house air cleaner
Humidifier
Programmable Thermostat
Wifi Thermostat


(603) 249-9800

Not valid with other offers or prior services.

With new installation of Furnace you get ONE FREE item below:

Whole house air cleaner
Humidifier
Programmable Thermostat
Wifi Thermostat


(603) 249-9800

Not valid with other offers or prior services.

Complete Residential & Light Commercial HVAC Services