On this page
Quick facts
- AreaHillsborough County
- StateNH
- Providers35
- Typical ticket$3.5k – $11k
Top local providers
Request quotes →- Joyce Cooling & Heating Inc.Top ratedinstallationrepairinspectionemergency
What customers say “This is the best HVAC Company to deal with in the entire State of NH. My wife and I lost heat the day after…”
- installationrepairinspectionemergency
What customers say “Shawn came out and reviewed our boiler and was extremely honest, and upfront with us. He truly went above and beyond to…”
- Al Terry Plumbing, Heating & ACTop ratedinstallationrepairemergency
What customers say “Al Terry has been excellent. My 23 year old High Velocity AC Failed, they did some basic repair attempts and quickly…”
What customers say “Good to meet Bobby and the Team. They got right down to business. We are so appreciative that they were able to work it…”
- Daigle Plumbing, Heating & CoolingTop ratedinstallationrepairemergency
What customers say “I can’t express how great working with Daigle company has been. They came out fast and gave me a very reasonable quote…”
- Triumph Home ServicesTop ratedinstallationrepairinspectionemergency
What customers say “Triumph Homes – Outstanding Service from Start to Finish! I had a leaky boiler and initially got a diagnosis from…”
- Big Al's ServicesTop rated
What customers say “We're in the middle of a nor'easter with a bomb cyclone and blizzard-like conditions. I wake to find it's 55 in my…”
- Walley's Heating & AirTop ratedinstallationrepairinspectionemergency
What customers say “About a week ago, last Saturday, my 27-year-old furnace suddenly failed when the inducer motor malfunctioned—at a time…”
- installationrepairinspectionemergency
What customers say “We contacted five A/C contractors in May 2025 to get prices for a replacement A/C system and needed a recommendation as…”
- Ferris Plumbing, Heating & AirTop ratedinstallationrepairemergency
What customers say “Jonah was great in braving the weather and getting to us to restore the heat and hot water in our house. He was so…”
- installationrepairinspectionemergency
What customers say “This company is the gold standard of customer service/ care. We were extremely worried when our water heater start…”
- GSMS Air•Heating•PlumbingTop ratedinstallationrepairemergency
What customers say “We worked with Granite State Mechanical Services during our kitchen remodel to install a make-up air system for a new…”
- Ethical Home ProTop rated
What customers say “In a day when we all are far to familiar with paying more and getting less, it is rare to find ANY contractor who…”
- JMS Plumbing and Heating LLCTop ratedinstallationrepairemergency
What customers say “Our hot water system unexpectedly failed this week, needing replacement. We called several businesses, trying to find…”
- Brookside Heating & CoolingTop rated
What customers say “I cannot express how grateful I am to the people at Brookside. After a week long trip, I came home at 11:00pm Jan 31st…”
Local pricing snapshot
Repairs typically run $150–$600. Full system replacements range from $4k for a basic furnace to $12k+ for a premium heat pump. Prices vary by system type, efficiency, and whether ductwork modifications are needed.
Cities in this county
New Hampshire hub →Frequently Asked Questions
Do HVAC pros in Hillsborough County charge travel fees?
Some rural routes include a trip charge. Confirm before scheduling and ask whether it applies to the estimate.
Which cities are in Hillsborough County?
Hillsborough County includes Manchester, Nashua, Merrimack.
Are permits required for HVAC work?
Most New Hampshire jurisdictions require a mechanical permit for equipment swaps. Ask your provider who pulls the permit and how it is priced.
Licensing verified weekly. Reviews refreshed within the last 30 days.
Licensing data: New Hampshire Mechanical Licensing Board — State Fire Marshal's Office (gas fitters only; no statewide HVAC contractor license) — NEEDS-VERIFY · Company data: verified business records + Google Business profile
See our editorial standardsReport inaccurate info about Hillsborough County, NH HVAC pros
Get quotes from Hillsborough County HVAC pros
Compare verified local providers and request free estimates in one place.