
Serving Hanover, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"They were awesome, arrived on time and did a fantastic job both cleaning and tuning up my gas furnace. I highly recommend them!"


Serving Hanover, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"They were awesome, arrived on time and did a fantastic job both cleaning and tuning up my gas furnace. I highly recommend them!"

Serving Hanover, NH and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"I had a zone issue with my forced radiant heat system. They were able to quickly diagnose the issue, and came up with a cost effective solution. I highly recommend them to anyone having furnace issues this winter, and they're super friendly!"




Serving Hanover, NH and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
WalshCo is a family-owned heating company specializing in oil-fired heating systems throughout New Hampshire and surrounding communities. \n \nOur services include oil tank installations and replacements, oil boiler and furnace installations, heating system repairs, annual maintenance and tune-ups, diagnostics, emergency no-heat service, water heater installations, and oil tank inspections. \n \nWe take pride in providing honest recommendations, quality workmanship, fair pricing, and dependable service. Whether you need a new oil tank, a complete heating system replacement, or fast repairs to restore your heat and hot water, our licensed technicians are committed to getting the job done right. \n \nAs a family-owned business, we believe in straightforward communication, professional service, and treating every customer?s home with the same care and respect we would our own.




Serving Hanover, NH and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
Dedicated professional service provider looking to help you with your needs!





+6

Serving Hanover, NH and surrounding areas
In business since 2021
Free estimates
Emergency services offered
"Jeff has always provided top-notch care for our home heating needs â from servicing our older furnace to installing a replacement one. He's always been attentive, answering any questions I had, and was willing to return multiple times to troubleshoot a tricky furnace issue. That's what I call true oldâ fashioned "service with a smile"!"

Serving Hanover, NH and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"Triumph Heating responded on the same day we lost heat after Christmas. They were responsive, professional and reasonably priced. We will definitely be using them again for our HVAC needs!"





+26
Serving Hanover, NH and surrounding areas
In business since 1985
Free estimates
Emergency services offered
"Great! They were prompt and curteous. They gave me a free estimate and then came back to complete the job. They answered all my questions. Project was completed in a little over a day. We have 5 heating zones. Final cost was within the estimate given. I have other projects that I plan to use them for."

Serving Hanover, NH and surrounding areas
In business since 2024
Free estimates
Emergency services offered
"Furnace went out over the weekend. Great service and fast. Will definitely hire again."





+6

Serving Hanover, NH and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"I was having a problem with MS Office not responding and other files being very, very slow to open. Jim started looking for the cause right away. He did numerous checks for viruses, malware, and various other things that can go wrong. He vigorously pursued a resolution pretty steadily for two days before determining it was a malfunctioning external backup system that was causing the problem. With that finding, he promptly got my computer running smoothly and very fast again. He made two trips to my house; on the first one, he had to cross a sheet of ice in my driveway. Jim is a very capable and experienced computer analyst that will get after your problem because he fully understands the importance of, and the need to have a working computer in the house.
"



Serving Hanover, NH and surrounding areas
In business since 1987
Free estimates
Emergency services offered
"Mike was amazing. He really helped me out in an emergency without any advance notice and just before the holidays too. He got me all fixed up and the heat back on in the house just before it was supposed to drop to 5 degrees outside that night. Would highly recommend for his knowledge and helpfulness."
Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.
Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.
With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.
The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.
Consulting with an HVAC professional can help you determine the exact size that's right for your home.
An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.
An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.
From average costs to expert advice, get all the answers you need to get your job done.

Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.

Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.

Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.

Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.

Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.

Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.