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

Emergency Heating Services in Exeter, NH

Gas Heater Installation, Repair & Maintenance

Is your gas heater or furnace ready for the coming winter months? At Main Stream Mechanical, we work to ensure your heating system is working reliably and efficiently. Our technicians are fully insured, and our services range from routine inspection to new system installation. Experience peace of mind knowing your heating system is ready to go when you need it!

Furnace and Boiler Installation and Repair

Viessmann boilers
Burnham boilers
Buderus boilers
American Standard furnaces
Trane furnaces
Goodman furnaces

Oil Furnace Repair in NH

At Main Stream Mechanical, we offer quality furnace inspections and repairs around New Hampshire. We repair common furnace malfunctions such as insufficient temperature, excessive fuel consumption, smoking and strange noises, and other issues. With winter approaching, it helps to know that your furnace will provide reliable heat all winter long. Schedule your appointment today!

Emergency Plumbing Repairs

At Main Stream Mechanical, we provide emergency replacement for your furnace, boiler, water heater, and other plumbing systems. Other emergency services include kitchen plumbing repairs, burst pipe replacement, thawing frozen pipes, and more. When the winter hits, you can rest assured knowing that your emergency needs will be met.

Winter Plumbing & Heating Services Exeter, NH

Contact Main Stream Mechanical for all your emergency heating and plumbing needs. We’re proud to offer reliable, professional heating repair services in Exeter, NH, and surrounding towns.

Check Out Our Current Specials!