Top-rated furnace / forced air heating system install or replace pros.

Get matched with top furnace / forced air heating system install or replace pros in Nashua, NH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Furnace / forced air heating system install or replace pros in Nashua

Avatar for JOYCE COOLING & HEATING INC
JOYCE COOLING & HEATING INC
4.8(
206
)
Heat Pump - Install or ReplaceElectrical Baseboard or Wall Heater - InstallGas Boiler or Radiator Heating System - Install+43 more

Serving Nashua, NH and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Tuesday night at around 5:20 pm I realized that my furnace was not working. Always a scary thought on a cold winter's night. I had never worked with Joyce, but ironically I had a regular maintenance/inspection scheduled for my furnace in a week and a half. So I called and left a message saying I had no heat. I was fully anticipating that I would not be given priority since I was not yet a customer and most likely there would be a lot of customers who had emergencies like mine. Joyce opens at 7:30 am. At 7:15 am I received a call that they could send someone out that morning much to my surprise. My furnace was repaired by 10 am that day and at a reasonable price! Alex, the gentleman who repaired the furnace, was polite and professional as was the woman I dealt with in the office. I will most likely be signing up for their maintenance plan."
Additional Photos
Additional Photos
Additional Photos
"THE CREW"
Air Conditioners

+4

Response time1 day
11 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Clear All Cooling and Heating, LLC
Clear All Cooling and Heating, LLC
5.0(
93
)
Ductless Mini-split Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install - For Business+20 more

Serving Nashua, NH and surrounding areas

Approved

In business since 2016

Credit card accepted

Customers say: Quick response

"We had a leaking 35 year old oil-fired boiler that needed to be replaced. This was just at the start of the heating season in 2021. We got quotes for price & installation dates from several HVAC companies Clear All HVAC supplied several boiler replacement options and also quoted an earlier delivery date than any other quote. We selected a boiler/indirect water heater combination that was significantly less than competing quotes. Clear All installed the system within a week and responded quickly to any concerns & questions we had. We highly recommend Clear All HVAC for anyone that needs HVAC installations, repairs, service and values good customer service. In our opinion they are outstanding and we will continue to use them as our go to HVAC Services company."
Response time1 day
Recommended by100%of homeowners
Avatar for Druziako HVAC Inc
Druziako HVAC Inc
4.7(
157
)
Gas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+19 more

Serving Nashua, NH and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I have a two-story single family house. Condenser of my outdoor unit for the 1st floor was shorted to ground so I need to replace it. Mike stopped by and patiently explained and discussed with me for all the options. Then back and forth with me for the configuration and pricing for different options. The whole team are friendly, helpful, and very patient. Installation went smoothly and quickly. The heat pump works great. My old oil based hydronic system was wired correctly as the backup heat source. Morris, the service tech, is smart, and figured out how to wire a complicated system. I cannot be happier with the pricing and quality of the work. I will hire them again to replace my 23 year old AC for the 2nd floor next spring. Thank you very much!"
Aprilaire Dehumidifier
Attic Air Handler
Duct Cleaning before and After
Attic Ductwork
Aprilaire Humidifier

+3

Response time11 hrs
22 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for NETR Inc
NETR Inc
4.7(
78
)
Heat Pump - Install or ReplaceBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+43 more

Serving Nashua, NH and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"The whole process went very well... from the initial consultation until the installation. Installing the system only took one day and it works great. After a bit of research, the price is probably a bit on the high side but I'd rather do that and get the job done right. Recommended."
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
Additional Photos
Additional Photos

+9

14 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+43 more

Serving Nashua, NH and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time2 days
3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Ace Hardware Home Services
Ace Hardware Home Services
4.5(
53
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallOil Boiler or Radiator Heating System - Install+43 more

Serving Nashua, NH and surrounding areas

Approved (Corporate)

In business since 1967

Free estimates

Emergency services offered

"I called Unique Indoor Comfort to take a look at it at on a Sunday afternoon. They sent Steve M out to take a look at it. He was very friendly and patiently listened to my concerns and answered my questions. He systematically checked various components and found some debris stuck in the pipe connected to the inducer motor. He removed the debris and that seemed to fix the problem and said that this would get me through the night, at the least. As a recommendation, he said it would be best if I replaced a part that is slowly falling apart. He would check with the manufacturer and call me the next day. The cost for the emergency call and check up was $150. Pretty reasonable to me. The next day, Steve M called me and said my furnace only had a 5 year parts warranty, so I would be on the hook for paying for the part. He advised me not to spend the $850 for the part right now, but instead do a complete maintenance and cleanup for $168. I took Steve M's advice. The next day, Steve C (another Steve at the same company) came out to do a complete clean up and check up on my furnace. He found bits of PVC pipe burnt up in the heat exchanger and removed them. Steve C seemed to do a very thorough job. He also took the time to answer my questions I will be using Unique Indoor Comfort in the future to do maintenance check ups. I had used another company a few years prior, but they didn't seem nearly as thorough."
Heat Pump
Mitsubishi Hyper Heat
Multiple Ductless Heat Pump Installation
Additional Photos
Additional Photos

+6

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
88
)
Heat Pump - Install or ReplaceBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+43 more

Serving Nashua, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"We have been a Palmer customer for 6 years. The front office and the technicians has always been great to work with. We have been using their AC and Heating Service Plan and on automatic oil and propane fill for years and we have never had an issue. My most recent experience was today for the AC Service Plan. The technician (David) was very polite, experienced, knowledgeable and respectful of our time and home. It’s always a great experience to have maintenance conducted in you home and have the technicians give you expert advice on your heating and AC system. Our AC system is well over 25 years old and still running strong thanks to Palmer. I continue to be impressed with Palmer and will remain a customer for the foreseeable future!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

3 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Skovron Mechanical Services
Skovron Mechanical Services
4.1(
85
)
Ductless Mini-split Heating System - Install or ReplaceGas Boiler or Radiator Heating System - RepairGas Boiler or Radiator Heating System - Repair - For Business+10 more

Serving Nashua, NH and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Keith was very professional, prompt, punctual and energetic. He went the extra mile in designing and quoting the system to meet my needs. I stumbled into a deal that I couldn't pass up. If not, I am certain I would have been happy with Skovron Mechanical Services and there opposed solution."
Commercial Cooling
Before Oil Boiler
Old
Oil Boiler
HVAC Roof Top Unit

+19

Response time9 hrs
Response rate100%
Recommended by84%of homeowners
Avatar for Addario, Inc.
Addario, Inc.
3.5(
327
)
Gas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+11 more

Serving Nashua, NH and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Addario installed a new high-efficiency gas furnace for us and also ran new heating lines for an apartment that was previously on separate, electric baseboard heat. It was a big job, in the middle of a heat wave, and they were unfailingly professional and considerate. I felt from the beginning to the end that they were treating our house with care."
Burnham Alpine Boiler and an Indirect water heater
Burnham Alpine boiler and a separate Ondemand wat
2 Rinnai Combi Boilers
Rinnai on-demand water heater
4 Zone Rinnai Combi Boiler

+110

Response time1 day
463 neighbors recently requested a quote
Recommended by70%of homeowners
...
Showing 1-10 of 400

FAQs for furnace / forced air heating system install or replace projects in Nashua, NH

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.

The Nashua, NH homeowners’ guide to furnace / forced air heating system installs or replaces

From average costs to expert advice, get all the answers you need to get your job done.