Expert Professional Home Heating Services
in Seacoast New Hampshire and Southern Maine
From traditional furnaces and boilers to innovative ductless mini split systems, East Coast HVAC has the experience and commitment to customer satisfaction that you need to stay comfortable all winter long.
We are the region’s most trusted Diamond Elite Contractor for Mitsubishi Electric, specializing in their line of quiet and powerful heating solutions known for their efficiency and customized comfort. We are also a preferred Pro Partner with Rheem, another premium product line, known for its reliability to beat New England’s harshest winters.
Our HVAC technicians are trained and qualified to efficiently service and replace any conventional home heating system by any manufacturer, so let us configure and install your next heating system. All of our walk-throughs and estimates are customized at no cost to you.
Heating Services FAQs
East Coast HVAC provides complete heating services for homeowners and light commercial properties in New Hampshire and Southern Maine. Our team installs, repairs, replaces, and maintains furnaces, boilers, heat pumps, and ductless mini split systems. Whether you need seasonal heating maintenance, emergency furnace repair, or a full system upgrade, our licensed technicians help keep homes comfortable during harsh New England winters.
If your furnace is over 15 years old, requires frequent repairs, struggles to heat your home evenly, or causes rising energy bills, it may be time to consider replacement. However, many systems can still be repaired cost-effectively. East Coast HVAC evaluates your system honestly and recommends the best option based on safety, efficiency, and long-term value.
Yes. East Coast HVAC provides professional boiler repair services for homeowners in Dover, Portsmouth, Rochester, Exeter, and surrounding Seacoast communities. Our technicians diagnose issues quickly and work on many types of gas and oil boiler systems to restore reliable heat as fast as possible.
Routine heating maintenance helps prevent unexpected breakdowns during cold weather while improving energy efficiency and system lifespan. In New Hampshire and Maine, winter heating systems work hard for several months each year, making annual tune-ups especially important. Regular maintenance can also help identify small issues before they become expensive repairs.
Some of the most common warning signs include uneven heating, strange noises, rising utility bills, weak airflow, frequent cycling, unusual smells, or a furnace or boiler that will not stay running consistently. If you notice any of these issues, scheduling heating service early can help avoid a complete system failure.
Absolutely. East Coast HVAC helps homeowners improve comfort and reduce heating costs with high-efficiency furnaces, boilers, heat pumps, smart thermostats, and preventative maintenance services. Upgrading an outdated system can significantly improve efficiency while providing more consistent indoor comfort.
East Coast HVAC proudly serves homeowners and businesses across the Greater Seacoast region, including Dover, Portsmouth, Rochester, Barrington, Stratham, Newington, and nearby New Hampshire and southern Maine communities. If you are searching for heating services near you, our local team is ready to help.
East Coast HVAC has been serving New Hampshire and Maine homeowners since 1986 with dependable service, experienced technicians, and quality heating solutions tailored to each property. As a family-owned company, we focus on honest recommendations, reliable workmanship, and long-term customer relationships rather than one-size-fits-all solutions.
The Diamond Elite Difference
East Coast HVAC is a Diamond Elite Contractor for Mitsubishi Electric. Our team undergoes rigorous and continued in-person training through Mitsubishi Certified Training Programs.
What does this mean for you? Being a Diamond Elite dealer is more than a title—it’s a promise. It reflects our advanced technical expertise and extensive experience with Mitsubishi systems, demonstrated through a high volume of registered installations. This distinction allows us to offer an exclusive, longer warranty than non-elite dealers—a significant benefit for our customers. You can trust us to design and propose the perfect system, install it with precision using factory-certified technicians, and provide unparalleled support. It’s a difference we take pride in, ensuring 100% customer satisfaction.
Customer Reviews
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Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. Better Business Is In Your Backyard.
Reliable Heating, Cooling, & Electrical Services.
Always Offered at the Fairest Prices Possible.
Serving homeowners in Seacoast New Hampshire and Southern Maine.
Our home base of operations is in Dover, New Hampshire and we happily serve customers
throughout the NH seacoast and within a 30-mile radius.
Alton Bay
Barnstead
Barrington
Brentwood
Candia
Chester
Derry
Dover
Durham
Epsom
Exeter
Farmington
Hampton
Kensington
Kingston
Lee
Londonderry
Madbury
Milton
New Castle
Newmarket
Northwood
Plaistow
Portsmouth
Raymond
Rochester
Rollinsford
Rye
Sanbornville
Seabrook
Somersworth
Wakefield
Alfred
Berwick
Biddeford
Eliot
Kennebunk
Kennebunkport
Kittery
Lebanon
North Berwick
Ogunquit
Sanford
South Berwick
Wells
York
York Harbor
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