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

Oil Boiler Service and Repair

As the days get shorter and the nights get longer, temperatures across Massachusetts and New Hampshire drop considerably. Don't get caught in the cold. Let Main Stream ensure your oil boilers remain functional when it matters most.

Oil burner services are frequently requested at the tail end of summer, when residents switch on their heating systems for the first time after they've lain dormant for so many months. When put under the sudden strain of warming a whole house or building, heating systems often experience a slow start and, sometimes, failure.

And what is the only thing worse that an oil boiler failing in the early days of cold weather? An oil boiler failing in the midst of February's frozen grasp.

Main Stream Mechanical has been helping Massachusetts and New Hampshire residents stay warm since 1996. In that time, our trusted technicians have seen--and done--it all. They've fixed simple, common issues seen in oil boilers; they've upgraded old models and installed new, energy efficient systems; they've even converted homes and business from using oil burners into natural gas systems that can help save the environment while saving you money.

Some of the more common problems you may have experienced include:

  • Oil Burner Simply Won't Start
  • Thermostat Malfunction
  • Room Temperature Is Far Below Thermostat Set Temperature
  • Oil-Flooded Combustion Chamber
  • Burner Short-Cycling
  • System Emits Smoke or Other Foul Odors
  • Burner Makes Knocking or Banging Noises When Lit

These issues, and others, are best addressed by professionals who know oil burners inside and out, professionals such as the Main Stream Mechanical team. Don't risk destroying your system with what may seem to be a "simple" repair, as even the simplest repairs can create the most damaging problems when not performed correctly.

Why Trust Main Stream with Your Oil Boiler Repairs?

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

When do you know whether your oil boiler requires routine service or repair to extend its life, of if a complete replacement or upgrade would be more beneficial? Our Comfort Specialists have the experience and expertise needed to help you choose the right services and equipment for your home or business.

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 Oil Boiler Service Today!

For oil boiler services including repairs, maintenance, or replacement, 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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