Heating Installations, Repairs, and Maintenance Services


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

Gas Furnace Replacement and Installation

Time for a new gas furnace? How do you know? Main Stream Mechanical has the experience and expertise to help Massachusetts and New Hampshire homeowners get the most out of their heating systems.

A gas furnace replacement is an investment that, when done at the right time, can pay off for many years to come. With constantly evolving technology and new state-of-the-art control systems announced seemingly every day, it can be a challenge to determine which gas furnace is right for you. That's why Main Stream Mechanical is your trusted home comfort specialist. With over 20 years providing heating services, we have seen and done it all. Let us show you the way.

How do you know if it's time to replace your gas furnace?

Even though repairs and regular maintenance can extend the life of your gas furnace, there comes a time when buying a new system is a greater investment than continually repairing the old one. There are a number of telltale signs that your gas furnace may be ready to give up:

  • Energy bills are increasing even though usage stays the same
  • Rooms are heating unevenly
  • Your home or business starts having humidity problems
  • The sudden or gradual appearance of strange noises in your systems, i.e. knocking, rattling, or humming
  • You find yourself engaging in repairs more and more frequently

And simply, a visual inspection of the furnace can reveal whether or not it's time for a replacement. Look for visible signs of rust, cracks, or corrosion. Also keep an eye out for excessive dust, soot, or dirt coming out of the furnace.

Or just call us. Our technicians are here for you. 

Why Trust Main Stream Mechanical with Your Gas Furnace Services?

Commitment to Quality

Massachusetts requires HVAC contractors to be licensed. Still, many other companies hire unlicensed technicians that fail to match our standards of quality. Unlike these contractors, Main Stream Mechanical is fully licensed to ensure the highest quality services for our customers.

Expert Recommendations

If you're looking to install a new gas furnace, it can be difficult to determine which system is safe, reliable, and energy efficient. Our Comfort Specialists and technicians will lend their expertise to help you choose the perfect equipment for your specific situation. Main Stream participates in Gas Networks, Mass Save and Cool Smart rebate and financing programs and will be able to assist you with these programs.

Adequately Insured

Our technicians are very responsible and we are fully insured.  Main Stream adheres to trade practices that are in compliance with Local, State and Federal regulations.

Schedule Your Gas Furnace Installation Today!

For gas furnace replacement or installation, call (978) 834-0849 today. We travel throughout the greater Haverhill, Newburyport, Boxford, Topsfield, Bedford, Lexington, and Arlington areas in MA, and the greater Derry, Seabrook, Stratham, Dover, Exeter, and Rye areas in NH. See our full service area list for towns and cities not noted; chances are we travel to yours, too!

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