Absolute Mechanical Systems is a full service heating & cooling company serving New Hampshire and northern Massachusetts in both the residential and commercial markets. We are an independent operation and can install any major brand of equipment. What that means to you, is that we choose equipment based on your specific needs. Each brand and model offer different levels of comfort, control and price and we have the expertise to help you sort it all out and choose the right solution to meet your needs and budget.

Whether you are considering converting your current heating system, adding air conditioning, replacing an aging system, adding a room or building a whole new house, we can help. Call us for a FREE ESTIMATE and we will layout your options so you can choose a system that meets your budget and provides the best comfort available.

Not sure where to start? Take a look at our Frequently Asked Questions or click on link below for more options.

HVAC Services we offer:

Preventive Maintenance


Air Conditioning

Air Cleaners

Air Purifiers



Water Heaters

Ductless Splits

Energy Recovery Ventilation

Contact us today for a free estimate on your heating or air project or service