Expert Marlborough, MA Heating Service Company

When temperatures dip to freezing, it’s crucial to have a heating contractor you can trust for fast repairs or replacements. Call Cotti Johnson HVAC, Inc. in Middlesex County. We have over 75+ years of experience and always deliver top-rated work.
HVAC, Electrical & Plumbing Services

Serving Taunton and Surrounding Areas Since 1948

Choose Boston’s Home Team!

Keeping Your Business Comfortable Is Our Priority

Over 75 Years In Business

We Have The Experience You Can Trust.


When the Massachusetts winter hits, you need a heating system you can count on. Whether your furnace has stopped working, your heat pump is acting up, or your home isn’t warming up like it should, Cotti Johnson HVAC, Inc. is here to help. As a trusted heating service company serving Marlborough, MA, and the surrounding MetroWest area, we specialize in fast, reliable, and affordable heater repairs and replacements.

You can find our expert crews working in:

  • Hudson
  • Northborough
  • Southborough
  • Westborough
  • Berlin
  • Bolton
  • Sudbury
  • Framingham
  • Shrewsbury
  • Worcester

And the surrounding areas!

Call us today for fast service!

Marlborough, Massachusetts Heater Repair & Replacement Services

If your home in Marlborough, MA, feels colder than it should, it may be time to schedule professional heater service with Cotti Johnson HVAC, Inc. Our team understands the unique challenges of New England winters and offers full-service diagnostics, repairs, and replacements for all types of heating systems.

Whether you’re dealing with a sudden loss of heat, uneven temperatures, or rising energy bills, our technicians will assess the problem quickly and offer long-term solutions. If your system is beyond repair, we can help you choose the best energy-efficient replacement for your home and budget.

We are proud to be the go-to heating contractor for Marlborough homeowners looking for honest service, clear communication, and dependable workmanship.

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Schedule Service
Comfort Is Just A Call Away! Call Cotti Today.
Call to Schedule Service 508-301-1831

Furnace Repair & Replacement Services in Middlesex County

As your trusted local furnace service company, we offer expert furnace diagnostics, repairs, and complete system replacements throughout Middlesex County. If your furnace is blowing cold air, making strange noises, or cycling on and off too frequently, it’s time to call in the pros.

We service all major furnace brands and models, both gas and electric. Our experienced technicians will thoroughly inspect your unit, identify the issue, and provide straightforward options so you can make an informed decision.

If your furnace is more than 15 years old or has needed frequent repairs, a replacement may be the most cost-effective option. As a leading furnace contractor, we’ll help you upgrade to a more efficient model that can keep your home warm while lowering your energy bills.

Our financing can help ease the burden of a furnace replacement or installation. Call us today!

MetroWest Heat Pump Repair & Replacement Services

Heat pumps are a great year-round comfort solution—but when they stop working efficiently, you’ll feel it fast. Our MetroWest heating specialists provide prompt, expert heat pump repair and replacement services to get your system back on track.

Whether your heat pump isn’t heating properly, has a refrigerant leak, or needs a complete overhaul, Cotti Johnson HVAC, Inc. can help. We offer routine maintenance, emergency repairs, and energy-efficient replacements tailored to your home’s heating and cooling needs.

As a top-rated heating service company in the MetroWest region, we’re committed to helping you stay comfortable no matter how cold it gets.

From emergency breakdowns to seasonal tune-ups and full system upgrades, our experienced heating contractors are ready to restore your comfort and peace of mind.

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Our Special Offers

Here are some of our current limited time offers, call for additional details. All specials are subject to availability, some terms apply, some terms based on credit approval. Offers cannot be combined.

Don’t wait for a complete heater breakdown. Call Cotti Johnson HVAC, Inc. in Marlborough, MA, at 508-301-1831 for fast repairs, maintenance, or replacement.