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Furnace Repair Services | JustCallHeritage.com

We know how cold it gets in the Northeast. Other parts of the country complain about bundling up, and we laugh, knowing they don’t really know how cold it can get. During winter, we must have working heat. Otherwise, the whole family is miserable. We know – we’ve been there!

Heritage Home Service doesn’t want you left without heat when you need it the most. Our friendly team of heating experts is here to answer your calls, guide you through what needs to be repaired, and more as you deal with frustrating heating issues. We’ve seen it all; we’ve fixed it all. We know we can make your home warm again and not just by fixing your furnace but by offering service with a smile when you’re frustrated the heat is out.

Since 1986, we’ve served New Hampshire and Massachusetts with kindness and compassion. We know what it’s like to be without heat. We want to avoid that for you and your family whenever we can. We’re always just a phone call away.

JUST CALL HERITAGE (603) 354-0092

FAQs

  • Furnace Repair Services in New Hampshire

    No Heat Blowing

    If your furnace is on but not giving off any heat, you may have a clogged or dirty air filter. Typically, you’d want to change your air filter every 30 to 60 days, but that’s also dependent on many other factors in your home. If you smoke, have pets, or suffer from allergies, you may need to change your filter on a specific schedule. Since it gets cold in our neck of the woods, we all run our heat more often than other areas of the country, which leads to the filter getting clogged quicker. If changing the filter doesn’t fix this issue, it’s time to call Heritage for help.

    Drastic Temperature Changes

    Any drastic temperature changes while running your furnace are cause for alarm. You may suddenly feel cold air vs. hot air, even if it’s been warm in the room for a while in some situations. In this case, turn off your furnace completely, wait about five minutes, then turn it back on again four or five degrees higher than what you had the temperature set to. See if that does the trick. If not, turn the furnace off and change your thermostat batteries. If neither of these tips works to get your heat working properly, it’s another reason to call our experts in.

    Pilot Light Failure

    If your home furnace does not turn on at all, that is commonly an issue with your pilot light. If you have an older furnace in your home, pay attention to your pilot light and if it remains lit. If the pilot light goes out and wont re-light when you reset the furnace, the system won’t turn on at all. A pilot light essentially stays lit 24/7/365 days a year; it’s a waste of fuel and could cost hundreds of dollars in fuel costs over the course of a year. An electronic ignition replaces older pilot light technology and saves you money.

Common Signs You Need Furnace Repair

Just because your furnace is heating your home, that doesn’t mean it’s working efficiently. With ongoing maintenance, you can catch issues before you need to stay warm in the winter. This is the best way to avoid going without heat. We recommend an annual check-up and provide you with the steps you need to perform routine maintenance between our visits.

In the meantime, here are some of the most common issues requiring furnace repair to keep an eye on.

Furnaces Let Us Down Sometimes, Heritage Will Not

Heritage is the furnace repair company you can rely on no matter what’s happening in your home. We never want you and your family to suffer in the cold when you don’t have to – that’s why we’re here to help. Call Heritage today and schedule service so we can get down to your furnace issues once and for all. We’ll treat your home like our own home and leave your furnace running better than it ever ran before.

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Financing Made Easy

When you choose Heritage, you can rest easy knowing that we provide straightforward options to help you budget for a complete solution that will last you for decades to come.

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Home Advantage Membership

With Home Advantage Membership, enjoy peace of mind knowing your home’s plumbing, heating, cooling, and electrical needs are handled year after year—hassle-free, with added benefits.

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Furnace/Boiler Tune-Up

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What Our Customers Are Saying

Kyle did an awesome job at finding the real problem and getting me set up with an electrician. He’s very nice and very helpful.

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Dawn Berwick

Dawn Berwick

October 13, 2026

I had a leaking pipe in my home. I called Heritage and Isles arrived. He quickly diagnosed the problem and it was an easy fix. He made some suggestions for future work. Isles your awesome. Thanks again

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Steve

Steve

October 13, 2026

Our technician Stevenson was on time, incredibly friendly and professional. Fixed our problem in under an hour.We love using heritage home services, always responsive and professional, I would highly recommend.

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Alex Alessi

Alex Alessi

October 13, 2026

We’ve lived in our 100 year old house for nearly 25 years. During that time, as expected, we have had our share of urgent plumbing issues that needed repairs. This past weekend, we had a larger issue that really was an emergency situation. Jordan came on Sunday to assess the issue, helped remediate it to make the leak slow down until Monday, at which time he and his colleague Taevon came back during the time they scheduled in the morning, and diligently worked to replace large sections of pipe in our basement. They were courteous, professional, and were clearly motivated to finish the work. They went above and beyond expectations, and because of them, I will absolutely not hesitate to call them for the next projects that are coming. Finally, the price was very fair and they didn’t charge any emergency or off hours fees for coming on Sunday and completing the work during a holiday on Monday. When you have a tough situation on a weekend, finding a great plumber is a tough task. We are thrilled this worked out the way it did. Best plumbing experience I’ve had. Thank you!!!

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Greg Palmer

Greg Palmer

October 13, 2026

Nick came to my home to worked on the furnace. He made sure I understood what was wrong with it and what was done to fix it. He was very professional. Made sure if I had any questions I knew where to call. I felt very secure in the work he did. Nick also made sure to clean up the area he was working in. I would definitely recommend Heritage Home Service, They stand behind their work.

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Erin Malcolm

Erin Malcolm

October 13, 2026

We’ve had Heritage do jobs for us across 2 different homes. Central air installation, furnace replacement, and electrical panel replacement. Everyone we’ve ever talked to or has come to our home to do work have been great and professional people. Always clean work and never make you feel like you’re paying for things you don’t need. They always prove their main goal is to give the customer what they want, what they need, and that the work is done correctly. Great financing options as well. We recommend Heritage to friends and family and will probably never go elsewhere for any future work we might need.

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Mac M

Mac M

October 12, 2026

I don’t think I could of had a more pleasant experience, water heater went out on me. The office person I dealt with was great. The technician was awesome. The work was great. The option for financing was nice if we had needed it

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Power Phone

Power Phone

October 12, 2026

Heritage is amazing and extremely professional. They keep you updated on arrival time and send a photo of the technician coming to your home. Derek fixed the leak in the basement, replaced plumbing under the kitchen sink and replaced our leaky tub spout. Derek and his assistant were very professional and courteous. The materials used are fantastic quality. They left our home spotless where they did their work. Very happy with everything , highly recommend Heritage.

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Potto Gold

Potto Gold

October 12, 2026

Dan came out on a weekend for an annual tune-up and maintenance on our boiler. He was friendly, professional, and walked me through everything he was going to do prior to beginning work and then went over the condition of the system at the end of the visit. Highly recommend!

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Will Tucker

Will Tucker

October 12, 2026

We had an issue with our HVAC and Dan came in on a Sunday and made sure that everything was done perfectly. I would definitely recommend Dan for future Jobs when it comes to your furnace and AC.

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Raymond Lamothe

Raymond Lamothe

October 11, 2026

Frequently Asked Questions

  • What are the signs that my furnace needs repair?

    Common signs include uneven heating throughout your home, unusual noises such as banging, rattling, or squealing, frequent cycling on and off, a sudden increase in heating bills, yellow or flickering pilot light instead of a steady blue flame, and cold air blowing from vents when the thermostat is set to heat. If you notice any of these issues, contact Heritage for a furnace inspection.

  • How often should my furnace be serviced in New Hampshire?

    Heritage recommends annual furnace maintenance before the heating season begins. Professional maintenance includes inspecting and cleaning key components, checking safety controls, testing efficiency, and identifying small issues before they become expensive repairs. Regular maintenance helps extend the life of your furnace and keeps it running safely through New Hampshire winters.

  • Can Heritage repair all brands and types of furnaces?

    Yes. Heritage services and repairs all major furnace brands and types, including gas furnaces, oil furnaces, and electric furnaces. Our licensed HVAC technicians carry common replacement parts and have the training to diagnose and repair a wide range of furnace issues.

  • How do I know if my furnace should be repaired or replaced?

    If your furnace is more than 15 years old, requires frequent repairs, or is no longer heating your home efficiently, replacement may be the more cost-effective option. Heritage will inspect your furnace, explain the issue, and provide honest recommendations so you can make an informed decision. We never push for replacement when a repair will solve the problem.

  • Does Heritage offer emergency furnace repair in New Hampshire?

    Yes. A furnace failure during a New Hampshire winter is a serious situation, so Heritage provides emergency heating repair services. If your furnace stops working or you suspect a safety issue such as a gas leak or carbon monoxide concern, contact Heritage immediately for priority service.

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