HVAC
"I had problems with my boiler and no one else was able to solve it and he was able to solve it right away without any issues. He really took his time and was very thorough with the work."
Allison R. in November 2021

Service. 30+ years experience servicing all HVAC equipment. Ductless minisplits, Central air conditioning systems, oil and gas furnaces. Steam heating systems. Boilers and furnaces., Installs over 30 years experience in installation and replacement of forced hot water and forced warmer heating systems. Gas, oil and electric.
"During my work years as a facilities manager I hired Dale Desmarais countless times for HVAC installations and repairs, I’ve also hired him for work on my HVAC system for my home service. His service and reliability is always excellent. I highly recommend him as he is honest, capable and very experienced, he thinks outside the box!"
Judy G. in April 2021

Kitchens and Bathrooms, General Building Repairs, Small Jobs, Handyman Services, Finish Carpentry - Trim, Moulding, Built-Ins , and 2 more
"John is the best contractor we have ever worked with due to the scope of his skills/projects and the quality of work and ease of working with him. We have worked with John for over 2 years on a variety of projects (repairing doors and even a 4-poster bed, painting interior walls, trim, ceiling & exterior painting). He meets his commitments and has the highest standards. We fully recommend him."
Gene N. in October 2016

Furnaces and Boilers, Ductless mini split, HVAC & Gas Fitter. , and 2 more
"Excellent choice. Got my furnace replaced with a Combi Boiler. Excellent experience from initial advice, quotation process and final installation. Always On-time, outstanding communication, very neat installation team. I highly recommend them."
GERALD E. in January 2018
Gas Furnace: Install, Gas Boiler or Radiator Heating System - Install, Oil Furnace: Install , and 2 more
About us: "With over 6 years of experience Prime Time Mechanical, LLC is one of New Hampshire's premier HVAC contractors. We specialize in all types of installations and repairs from gas and oil furnaces, boilers, water heaters, and gas piping. Our staff takes pride in providing our customers with the highest quality of work and customer service. Give us a call today!"

AC, Water heater install and replacement and repair, Repairs and installs , and 1 more
"Wonderful service from Adam! My water heater was struggling to keep up with my wife?s long showers - which by the way she heats them up hot as hell! ? Besides the point, Adam recommended sizing up the water heater in order to keep up with the demands of some crazy hot water. Incredibly fast installation process and Adam was really friendly. I would definitely recommend him to all my friends who are looking for a plumber. You should certainly give him a call!"
EBF2363A03F3CAA4F17B8CAD65EE6F87663AC9613A924A2A36F2E714DCDEC04C F. in April 2025

HVAC Services, Residential/ Commercial Refrigeration Systems, AC Install/Repair
"The gentlemaen that have come to my house from this company have been spectacular. They came on time they’re efficient. There’s no nonsense. They found a problem replaced it and said please call back if there’s a problem and they couldn’t have been nicer. I would highly highly recommend them to anyone"
E29ED377CC0ED593ED0178DCAA65B3B0A2EA8A0987384955418EC85AAEB7B405 2. in August 2025

Water Heater Install/Repair, Plumbing, tub/shower remodles , and 1 more
"I hired them to replace a sluggish toilet. Andrew took my call immediately and set a schedule for the next day. He came right on time and did a great job. I will definitely call them again."
Nancy H. in June 2019
Plumbing, Electrical, Drains , and 7 more
"My job was fairly complex, which is why I went directly to Heritage - I wanted to retrofit a trailer with a forced hot water heating system (replacing a hot air furnace). It required a finding a boiler from one specific manufacturer, adding the hot water baseboards throughout the trailer, and dealing with installing pipes in an uninsulated crawl space. Tyler, Mike and Dan were professional, courteous, did what they said they were going to do, explained all the new features, left the house spotless. All are very knowledgeable and skilled in their profession. I have never been anything but delighted with the quality of work performed by Heritage employees."
Linda B. in September 2016

Gas, HVAC, Cooling , and 2 more
"I couldnâ t have asked for a better experience. Losing your central air conditioning during a 10-day heat wave is miserable. As miserable as my problem was, within 72 hours of making contact with Next Gen, I had a brand new air conditioner installed. There was no hassle, no delays, everything promised & paid for was delivered. Dan from Next Gen was great to work with. I am a happy & satisfied customer. I will certainly call Next Gen for any future HVAC needs."
Jennifer L. P. in October 2023

HVAC Maintenance & Repairs, Heat Pump - Install or Replace, Gas Furnace - Install or Replace , and 1 more
"I would definitely use and recommend Control Temp again. Brian responded to my call promptly and sent out a technician within 1 hour. My heating system was back up and running an hour later thanks to Chris. Chris was very friendly and professional. Thanks for the good work."
Frank P. in November 2005
Amherst Heating & Furnace Contractors are rated 4.7 out of 5 based on 1156 reviews of 1156 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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