Licensed and insured, we operate in the states of Massachusetts and New Hampshire


Home Heating Systems

Installation, maintenance, and repair services improve the energy efficiency of your home and reduce heating costs. learn more

Air Conditioning

Central AC Systems

Efficient and affordable central air conditioning systems improve indoor air quality and help you beat the heat. learn more


All Your Plumbing Needs

From emergency plumbing services to complete plumbing system renovation and remodeling, we do it all. learn more


We Are Where You Are

Massachusetts and southern New Hampshire residents rely on Main Stream Mechanical. learn more

Your Plumbing, Heating, and Air Conditioning Contractors

Main Stream Mechanical: HVAC Installation, Repair, Maintenance and More Across Massachusetts and Southern New Hampshire

Founded in 1996, Main Stream Mechanical is a full service plumbing, heating and air conditioning contractor.  Customer satisfaction is our primary goal and we are dedicated to providing professional, prompt and courteous service.  

Our Technicians have over sixty years of combined experience in the HVAC/plumbing fields and participate in extensive training programs specific to each license held.

Ongoing product training is also an integral part of Main Stream Mechanical's endeavor to be well versed in the operation, repair and installation of each brand of equipment we install. Our Technicians are experts in the installation and maintenance of high efficiency equipment.

Licensed and insured, we operate in the states of Massachusetts and New Hampshire.  Our professional service teams include Master and Journeyman Plumbers and Gas Fitters who are dedicated to providing exceptional service.

Our vehicles are stocked to efficiently handle routine calls, and we have same day access to specialty stock.  

Call today (978-834-0849) to schedule a service call or for a no obligation consultation for your heating, cooling, or renovation project.  

Calling after hours? No problem! We have an answering service so that you always receive a personal response. Telephones are answered 24/7.

We provide emergency, after hours service 7 days a week until 9:00 p.m. from November 1st until Memorial Day. From Memorial Day until November 1st, any calls received after hours will be forwarded to the office for next business day handling.

Check Out Our Current Specials!