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Premium HVAC Services for Southern New Hampshire

Since 2011, Comfort Air Services has served Southern New Hampshire homeowners with HVAC repairs, installations, and maintenance. We’re veteran-owned, provide personalized guidance, and offer financing options.

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Our Services

Heating and Cooling Services in Southern NH

Our team handles repairs, replacements, ductless mini-splits, indoor air quality, and maintenance across Derry, Fremont, Portsmouth, and the New Hampshire Seacoast. Homeowners call us for same-day scheduling, 24/7 availability, and clear repair-versus-replace advice.

Why Choose Us

Why Homeowners Choose Comfort Air

  • Veteran-Owned and Local

    You work with a Fremont company built around dependable service for Southern New Hampshire.

  • Licensed NH Gas Fitters

    Comfort Air Services requires NH Gas Fitter licensing and works under Mechanical Business Entity MBE2501718.

  • Honest Repair and Replacement Guidance

    We inspect the system, explain the options, and help you compare repair and replacement costs.

  • Emergency Service Available

    Our office runs from 8 AM to 5 PM, and our technicians take emergency calls when urgent problems hit.

Comfort Air Team
Comfort Club Member

Comfort Club Maintenance Plans

Comfort Club helps you keep your HVAC system on schedule with seasonal maintenance in spring and fall. Our technicians tune the system, check for wear, improve efficiency, and catch small issues before they cause breakdowns.

Members receive priority scheduling, repair discounts, and monthly payment options that keep routine maintenance in the household budget.

We maintain systems for homeowners, rental properties, condo associations, and business offices across Southern New Hampshire.

Explore Comfort Club
Financing

Flexible Financing Through Foundation Finance

Comfort Air Services partners with Foundation Finance Company to help you plan HVAC upgrades without delaying needed work.

Ask us about installment loans and same-as-cash programs, subject to credit approval. Our team walks you through the process, helps you review available options, and lets you choose what fits your home.

Comfort Shield Image
Comfort Shield

Comfort Shield Protection for Long-Term System Care

Comfort Shield adds labor coverage to your new HVAC system warranty. Manufacturers cover warrantied parts. Comfort Shield covers the labor to repair or replace those parts, which helps you avoid surprise repair bills.

The plan follows your manufacturer warranty terms unless the agreement notes an exception, so you know what coverage applies before you need service.

Comfort Shield requires Comfort Club membership. Annual maintenance keeps your system cared for and helps protect your long-term investment.

Learn About Comfort Shield
  • 90%

    of System Failures Involve Missed Maintenance

  • 50%

    of a Home's Energy Bill Can Go to Heating and Cooling

  • 5-10 Yrs

    of Extra System Life From Preventive Maintenance

Reviews

Reviews from Southern NH Customers

Doug Hartwick

Comfort Air saved the day. Lost my furnace on a very cold December day. Called many HVAC companies but none could see me for days. Patrick came to the house the same day. We settled on a replacement system and his team installed the next day. And just in time. It was only 13 degrees that night. It was a totally professional experience from start to finish.

Kurt Krinke

Patrick and his crew replaced my 18yo Oil Furnace and Central Air last Saturday morning. They arrived on time, told me what to expect and they were done in a bit over 3 hours. Its been 90 plus degrees and the system is working flawlessly keeping us cool. The basement was left clean and neat, the price was great too. We put in the builder grade lennox product with a honeywell 2 zone control. Very pleased.

Sherry Innie

Comfort Air Services came to our rescue with our mini-split. We had a hole in the case that caused a constant leak. Orien came and cleaned the unit, figured out the leak. They had to order a part. Once they received it, Orien promptly came back and got everything in working order with no more leak. Extremely professional and very kind. I am now on a maintenance program with Comfort Air Services so that I don’t have to worry about issues in the future!

Dave Maher

Comfort Air Services is always a pleasure to work with, very reliable and fairly priced. Earlier this week, the technician even arrived a few minutes early for my annual heating system maintenance. He was very courteous and did a thorough job. I would highly recommend them.

Rosemary MacDonald

We had complete new system put in our condo in Hampstead. New AC and heat and we’re extremely happy with Patrick and quality of his work and products. On time, cleaned up and office support was responsive to our needs! Great job!

Jim Kane

Had Patrick and team remove the old and install a new boiler and water heater in our home. We were extremely happy with the speedy installation and open communication about timings, pricing, and options available to us. Highly recommend for anyone looking for fair and reliable heating/cooling needs.

Contact Comfort Air

Schedule Service or Request an Estimate

Contact our Fremont team for repairs, replacements, maintenance, or guidance on the next step for your home comfort system.

FAQ

Common Heating and Cooling Questions

Yes. Comfort Air Services provides heating and cooling service, installation, replacement planning, and preventative maintenance.

We serve Southern New Hampshire, including Fremont and nearby communities such as Northwood, Newington, Seabrook, Salem, Windham, and Manchester.

Yes. The office is open from 8 AM to 5 PM, and technicians are on call for emergencies when fast help is needed.

Missed maintenance leads to many HVAC failures, and neglected systems can lose efficiency year after year.

Yes. Comfort Air Services works with homeowners and local businesses.

Seasonal Updates

Get HVAC Tips, Maintenance Reminders, and Special Offers

Join the Comfort Air Services email list for practical heating and cooling advice, seasonal service reminders, and occasional promotions for homeowners across Southern New Hampshire.