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Top Heating & Furnace Contractors in PortsmouthNH

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Featured Service Pros

  • Revolution HVAC, LLC

    • Elite Service
    • Warranties
    • Free Estimates
    • Deal
    Posted by Joan L.on 10/27/2020

    We can not say enough! Our furnace died, Saul came right away to assess the problem and explained that the heat exchanger was gone and we would need a new unit. We thought it was going to cost a fortune! We were pleased to find that was NOT the case. The crew came in, installed the new unit in record time, professional and courteous. They cleaned and left everything spotless. They even helped us register the product for warranty. I would highly recommend them!

  • Newly Screened & Approved
    Call For References

    Turcotte Plumbing & Heating, LLC

    • Free Estimates
    In Business Since 2000

    Welcome to Turcotte Plumbing & Heating, LLC! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

  • Dunnwell Heating and Cooling

    • Free Estimates
    Posted by Peter C.on 11/26/2021

    Mr. Makos was very attentive to our unique needs and preferences for heating and air conditioning, and described very clearly his proposed solution, which has proven to be effective. He was very cordial and considerate throughout the contracting and installation process, moved to acquire the necessary equipment quickly, and installed it promptly and skillfully. He provided his service at exceptional savings, compared to other contractors. He has assured us of further consultation and checks on our system, should the need arise, at no extra charge.

Service Pros

Showing 1-24 of 24 results

Out of Network Heating & Furnace Contractors in Portsmouth, NH

Frequently Asked Questions

What is a furnace?

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A furnace generates and distributes heated air throughout your home. A vital part of the heating, ventilation, and air conditioning (HVAC) system—though it does not cool air—you activate a furnace when you set or adjust the temperature in a room using the thermostat. Furnaces can run off natural gas, oil, electric, or propane.

How long does a furnace last?

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The average gas furnace lasts 15 to 20 years, though some electric furnaces can last 30 years or more.

  • Gas furnace: 15–20 years
  • Electric furnace: 20–30 years
  • Oil furnace: 15–20 years

In addition to furnace type, your unit’s lifespan also depends on its size and the heating system you have—two-stage furnaces are more efficient and less likely to break than single-stage furnaces.

Having a reputable HVAC technician perform annual furnace maintenance and inspections can help ensure you get the most out of your unit. And, as always, change your filters regularly—a dirty filter can block airflow and overwork the motor.

How often should you change your furnace filter?

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You should change your furnace filter every one to three months to help maintain air quality, keep energy costs in check, and extend your unit’s lifespan. If people in your home have dust or pet dander allergies, you may consider changing your filters more regularly. Looking for an even simpler guideline? If the filter is dirty, replace it.

How much does a new furnace cost?

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The average cost of a furnace unit is $2,300 to $7,200, plus $150 to $500 per hour for installation. Furnace replacement prices depend on the type of furnace you need, its size, and local labor costs.

  • Gas: $3,800–$10,000
  • Electric: $2,000–$7,000
  • Oil: $6,750–$10,000
  • Mini-Split: $2,000–$15,000
  • Geothermal: $4,000–$17,000

If your furnace installation requires new gas lines or additional ductwork, add $250 to $800 for the gas lines and $3,00 to $5000 on average for the ductwork to your overall project costs.

Top Heating & Furnace Systems Projects

HomeAdvisor Community Rating

Overall Rating:

Portsmouth Heating & Furnace Contractors are rated 4.7 out of 5 based on 2,115 reviews of 24 pros.

The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.


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Recent Job Requests for Heating & Furnace Contractors in Portsmouth, NH

  • NewProject: Install Oil Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 11/23/22
    Nature of Project: Replace existing central heating system
    Age of Heating Equipment: More than 20 years
    Kind of Heating System: Oil fired
    Location: Home/Residence
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
    Property Owner: Yes
    Are you interested in financing?: No
  • NewProject: Install an Oil Fired Boiler or Radiator Heating System
    Location: Portsmouth, NH
    Date: 11/22/22
    Additional thermostats: No
    Type of system: Oil fired
    Location: Home/Residence
    Desired Completion Date: More than 2 weeks
    Request Stage: Planning & Budgeting
    Property Owner: Yes
    Are you interested in financing?: No
    Comment: 120 BTU 3 ZONE OIL. BOILER
  • NewProject: Repair Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 11/22/22
    Current Heating System: Natural gas fired
    Location: Home/Residence
    Is this an emergency?: No
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
  • Project: Install Oil Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 11/11/22
    Desired Completion Date: Timing is flexible
    Request Stage: Planning & Budgeting
  • Project: Repair Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 11/08/22
    Current Heating System: Natural gas fired
    Location: Home/Residence
    Is this an emergency?: No
    Desired Completion Date: 1 - 2 weeks
    Request Stage: Ready to Hire
  • Project: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 10/24/22
    Other Features: Multiple units
    Nature of Project: Replace existing central heating system
    Age of Heating Equipment: 5 - 10 years
    Kind of Heating System: Natural gas fired
    Location: Home/Residence
    Desired Completion Date: Timing is flexible
    Request Stage: Planning & Budgeting
    Property Owner: Yes
    Are you interested in financing?: No
    Comment: Replace 2 furnaces, 2 water heaters for a duplex. Both natural gas. 1600 square feet total.
  • Project: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 10/11/22
    Nature of Project: Replace existing central heating system
    Age of Heating Equipment: 16 - 20 years
    Kind of Heating System: Natural gas fired
    Location: Home/Residence
    Desired Completion Date: Within 1 week
    Request Stage: Ready to Hire
    Property Owner: Yes
    Are you interested in financing?: No
    Comment: Need a new natural gas furnace and water heater for our older home. 4 zones, furnace stopped working this past week
  • Project: Repair Oil Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 10/11/22
    Current Heating System: Oil fired
    Location: Home/Residence
    Is this an emergency?: No
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
    Customer moving in/out?: No
    Comment: Need good tune up and possible chimney cleaning. Furnace is running too rich, black smoke from chimney.
  • Project: Repair Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 10/01/22
    Current Heating System: Natural gas fired
    Problem with Heating System: Nothing happens when it's turned on
    Age of Heating Equipment: 16 - 20 years
    Location: Home/Residence
    Is this an emergency?: No
    After Business Hours: No
    Covered by Insurance: No
    Desired Completion Date: 1 - 2 weeks
    Request Stage: Ready to Hire
    Property Owner: Yes
    Customer moving in/out?: No
    Comment: gas heating system, seems like blower not engaging -- no sound of fan -- not sending hot air out.
  • Project: Repair Oil Furnace / Forced Air Heating System
    Location: Portsmouth, NH
    Date: 09/27/22
    Current Heating System: Oil fired
    Problem with Heating System: Nothing happens when it's turned on
    Age of Heating Equipment: More than 20 years
    Location: Home/Residence
    Is this an emergency?: No
    After Business Hours: No
    Covered by Insurance: No
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
    Property Owner: Yes
    Customer moving in/out?: No

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