Warmth and Comfort, All Winter Long

Advanced Heating Solutions Tailored for Your Home or Business

Heating Services in New Hampshire

Professional Heating Solutions for Homes & Businesses

New Hampshire winters can be harsh, making a reliable heating system essential for comfort and safety. Marathon HVAC specializes in heating system installation, maintenance, and repairs to keep your home or business warm and energy-efficient during the cold months.

SAVE UP TO $1900

With NHSaves

Thinking about an energy-efficient ductless system to heat and cool your home? Rebates from NH Saves make upgrading to high efficient heating equipment even more appealing—you’ll save money while helping the planet.

Qualifying installations can earn up to a $1,900 rebate for our NHSaves utility partners. And with Marathon HVAC handling every detail, all you have to do is sign the paperwork and wait for your check!

Our Heating Services

When the cold weather hits, you need a reliable heating system. Marathon HVAC specializes in providing efficient, high-performance heating solutions designed to keep you warm without breaking the bank.

1. Heating Installation & Replacement

Professional installation of top-quality heating systems that match your specific needs and budget.

2. Heating Maintenance & Tune-Ups

Preventive maintenance services to keep your heating system running efficiently throughout the winter months.

3. Emergency Heating Repairs

Quick and efficient repair services to address any issues, ensuring your system remains in top condition.

Benefits of Our Heating Services

Lower Energy Bills

Efficient heating systems reduce energy consumption.

Reliable Performance

Well-maintained systems prevent unexpected breakdowns.

Extended Equipment Lifespan

Regular maintenance ensures longevity.

Experienced Professionals

Our technicians are industry-certified and possess deep local knowledge, guaranteeing expert service.

Customer Testimonials

Don't just take our word for it—listen to what satisfied customers say about our dedication and service

    
 
 
       Posted on Google  
   
   Bob Strine 
 
 
 
 Trustindex verifies that the original source of the review is Google. Keith was brought in to resolve major issues with a very complicated residential system after numerous contractors had walked away from the project. He studied the system and came up with  cost effective and reliable solutions to make the system viable again. Keith could have sold an expensive replacement heating system ( low six figures were some quotes ) but he took the hard route and fixed the problems. And he has always been available to answer questions by text or call. His invoices were always fair and honest. I highly recommend his services.
  
 
      Posted on Google  
   
   J Jellerson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Showed up fast during an emergency situation and was friendly and professional, handling potential barriers very well. Highly recommended. Keith is very helpful, knowledgeable, and understanding.
  
 
      Posted on Google  
   
   Kathy Levesque 
 
 
 
 Trustindex verifies that the original source of the review is Google. Marathon HVAC was awesome! Very professional company. Keith arrived on time and quickly got to fixing our gas line leak. I would highly recommend Marathon for any HVAC issues.
  
 
      Posted on Google  
   
   Jay Levesque 
 
 
 
 Trustindex verifies that the original source of the review is Google. Keith did a perfect job on our propane furnace and our central air. He is on-time, super knowledgeable, and polite.  I will never hire anyone else.
  
 
      Posted on Google  
   
   Michael Panzer 
 
 
 
 Trustindex verifies that the original source of the review is Google. Keith did a great job. His work is high quality and his prices are fair and reasonable. There were no surprises and he was done in the time period he said he would be.
  
 
      Posted on Google  
   
   Tammy F 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great company! I didn't even know they were at my house.  If you are looking for someone to do a professional job I would highly recommend hiring Marathon HVAC to do the job.
  
 
  
  
 
 
      Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more