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

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Central AC Systems

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


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


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

Oil To Gas Conversion

A Safe, Efficient Way to Heat Your Massachusetts or New Hampshire Home

Thinking about converting your heating system to clean, efficient natural gas?  The benefits are numerous.

Did you know that natural gas heating equipment offers efficiencies over 95%? This means that as a homeowner you will enjoy substantial savings in your monthly heating costs, as much as 30%.  You will also help the environment by reducing CO2 emissions. With natural gas there are no odors or soot and there is no large tank taking up valuable space in your basement.

Converting to natural gas is easy.  As a National Grid VPI Installer, we will handle the entire process for you.  We will:

  • Find out if there is gas on your street or in your neighborhood

  • Complete the necessary paperwork to bring the gas service from the street to your home and determine the best point of entry based upon current gas code requirements

  • Determine the appropriate type and size of heating equipment you require by completing a comprehensive site visit

  • Once the gas service is installed, we order your heating equipment through the National Grid ordering portal

  • Apply for all necessary gas/plumbing permits and schedule inspections

  • Arrange for the oil tank and old heating equipment removal

  • Coordinate asbestos remediation (if required)

  • Ensure that your new heating equipment is properly wired by a licensed electrician

  • Assist you in contacting National Grid to hang your new gas meter once your gas inspection has been completed by your Town’s Code Enforcement Officer

  • Provide you with all rebate paperwork to ensure that you apply for all of the rebates that you are eligible for

If you already have gas in your home but have not converted your heating system, you will enjoy the same advantages without having to bring in a new gas service.

With over 14 years of experience working with utility companies converting homeowners to natural gas heating, you can count on us to support you every step of the way! 

Call us today for a no obligation consultation

Your oil to gas conversion is in expert hands with Main Stream Mechanical. In Haverhill, Amesbury, Newburyport, Rowley, Topsfield, Boxford, and other locations across Massachusetts and southern New Hampshire, call (978) 834-0849 for service.

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