
Your Experts in HVAC and Plumbing
Licensed & Insured
Expert, Responsive, Reliable
Serving MA & NH for over 25 years
MA Lic #12625 | NH Lic #3855
Customer Testimonials
"I wanted to write to tell you and all the folks at Main Stream Mechanical what a wonderful job you did. From my first phone call through the entire process, everyone at Main Stream was professional, courteous, and punctual. Thanks to everyone for a great job!"
– M. Bailey, Haverhill, MA
Limit 1 offer per customer. Cannot be combined with any other offers. Main Stream Mechanical must supply a replacement tank. The coupon must be mentioned at the time of scheduling to qualify. Does not apply to prior installations.
$25.00 OFF YOUR NEXT WATER HEATER REPLACEMENT
Limit 1 offer per customer. Cannot be combined with any other offers. The coupon must be mentioned at the time of scheduling to qualify.
NEW CUSTOMERS ENJOY $20.00 OFF ANY SERVICE WE PROVIDE
$10 OFF ANY PLUMBING, HEATING, OR AC REPAIR
Limit 1 offer per customer. Cannot be combined with any other offers. The coupon must be mentioned at the time of scheduling to qualify.
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SERVICE AREAS ACROSS MASSACHUSETTS AND NEW HAMPSHIRE
Don’t see your town listed? Give us a call to see if we offer coverage in your area.

Massachusetts Service Area
Amesbury, Andover, Arlington, Bedford, Belmont, Beverly, Billerica, Boxford, Burlington, Byfield, Chelmsford, Concord, Danvers, Essex, Georgetown, Gloucester, Groveland, Hamilton, Haverhill, Ipswich, Lexington, Lowell, Lynnfield, Malden, Manchester, Marblehead, Medford, Melrose, Merrimac, Methuen, Middleton, Newbury, Newburyport, Newton, North Andover, North Reading, Peabody, Reading, Rockport, Rowley, Salem, Salisbury, Saugus, South Hamilton, Stoneham, Swampscott, Tewksbury, Topsfield, Wakefield, Waltham, Wellesley, Wenham, Westford, West Newbury, Wilmington, Winchester, & Woburn

New Hampshire Service Area
Atkinson, Brentwood, Candia, Danville, Deerfield, Derry, Dover, East Hampstead, East Kingston, Epping, Exeter, Fremont, Greenland, Hampstead, Hampton, Hampton Falls, Kensington, Kingston, Londonderry, Newington, Newton, Northwood, Plaistow, Rye, Raymond, Sandown, Seabrook, Stratham, Wolfboro, Tuftonboro, Alton, Meredith, Moultonborough, Gilford, Belmont, Center Harbor, & Gilmanton