High Velocity HVAC systems provide the versatility of retrofit without a costly, time-consuming and invasive installation process. These systems are ideal for older homes lacking ductwork, tight spaces, or anywhere you’d like to upgrade temperature control in Southern New Hampshire and parts of Massachusetts. Slim flexible ducts insert into walls and accommodate existing pipes and wires without causing damage. Compact vents integrate seamlessly into your decor. Through high-pressure airflow, High Velocity HVAC systems quickly raise or lower room temperature, avoid stratification, and deliver quiet comfort.

High Velocity HVAC System Installations & Services

Absolute Mechanical Systems designs High Velocity Heating & Cooling systems to suit your specific requirements. Our NATE-certified team and industry leading innovations add up to superior efficiency, reliability, and control over your indoor climate. Established in 1998, we draw from a great deal of in-field experience and advanced training to maintain an organized project, ensure all details are handled properly, and provide swift and smooth completion. Absolute Mechanical Systems further offers conscientious maintenance, skilled repair of all makes and models, and 24/7 Emergency Service anywhere across 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.

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

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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

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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