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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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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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What Our Customers Are Saying

Isles came promptly on an emergency night call and did a very professional job and was very personable and knowledgeable.

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Ann Federici

Ann Federici

July 21, 2026

When my AC quit suddenly, Heritage came in a timely fashion and did an excellent job. The four gentlemen who helped me were professional and knowledgeable. Joe diagnosed the problem and was very thorough in explaining the cost of repair versus replacement. Bobby, Harrison and the electrician Liam did the replacement and were wonderful to work with. They explained the process carefully, answered all my questions and completed the job efficiently and quickly. I would certainly call the company again for any HVAC, plumbing or electrical needs. Thanks Heritage!

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Sarah Mason

Sarah Mason

July 20, 2026

I had an emergency with my septic and had no running water. Their technician Derek, arrived early and explained every step of his process and what everything cost, before performing the work.

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Dennis Kane

Dennis Kane

July 20, 2026

First time using Heritage, as two other plumbers I’ve used in the past gave me long lead times. Heritage answered my call personally, and scheduled me same day-amazing considering it was a Saturday! I had a leaking outdoor spigot, and given the drought, waiting a week to fix it was out of the question. The technician sent out, James Shallow, could not have been more professional, knowledgeable and personable. He showed up on time, did the job seamlessly and without issue. He spent time educating us as to how to avoid this problem in the future, and it was a genuinely pleasant experience. I will most definitely use & recommend Heritage again (request Jimmy).

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denice brandon

denice brandon

July 17, 2026

Alex came to fix a water main leak at my home which was pre-manufactured in the late eighties. He found and fixed the leak quickly. After the job was complete I spoke with him about the cause because this is the third time in a year with a leak. He spent the time with me explaining the material used for piping in my place and checked the water pressure. The pressure was on the high end and we both concluded between pressure spikes and old plastic pipes. I asked for an estimate to replace all the pipes. He was able to give me an estimate on the spot and found financing with very reasonable terms. Two days later Heritage Home Services was here with two trucks and completely changed out the piping in a day. In short. This place answers the phone. Gets technician on the job quickly. Great knowledge. Cleaned thoroughly before leaving.

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Greg Cumming

Greg Cumming

July 17, 2026

Derek Schmidt did a great job servicing my Bradford White water heater! Very knowledgeable and took the time to explain everything to me and all my options moving forward. He was respectful of my home and family, would welcome him back anytime.

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Ryan Willett

Ryan Willett

July 16, 2026

The team came after hours and quickly deduced the issue and got the AC back on line! Very nice people and did thorough work!

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bouche64

bouche64

July 15, 2026

We called several plumbers and I got “we are too busy” and “it’s too small of a job”. Not with heritage though! They were able to get us on the schedule in a timely manner and helped us with our plumbing issue. Thank you Zach! Zach was quick and professional! Will definitely use again!

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Andrea Thomas

Andrea Thomas

July 15, 2026

I’ve dealt with Heritage for many years because of their dependability. They are not the cheapest, for sure, but if you need a plumbing or HVAC system installed or serviced/repaired, there’s none better. I needed repairs to be done on slim duct covers that were damaged after having siding installed on my home. I called Heritage because they were the company that installed the original mini-split system in my house several years earlier. John Lindonen and another technician (unfortunately, I don’t remember his name) showed up as committed and did the repair work. They were very thorough, explaining every issue to me and answered all of my questions. They were polite, and extremely knowledgeable. I wouldn’t hesitate to recommend these guys to my family or friends.

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Richard Dauber

Richard Dauber

July 15, 2026

The AI interactive was ok but screwed up my ph# so never got a call. However, Camile arrived and spent time discussing my points and activities performed, helped me tremendously and ultimately didn’t need service. He was professional, informative, and transparent so Heritage, please acknowledge his great service!

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D L

D L

July 15, 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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