Contractors / Portsmouth, NH / HVAC

HVAC contractors in Portsmouth, NH

Real permit activity. Real contractors. Ranked by volume.

353 hvac permits were filed in Portsmouth in the last 6 months. These 48 contractors filed them most often. Tap a name for their full permit history.

Get quotes from active hvac contractors in Portsmouth

See permit history first, then request a quote. We route it to contractors with documented permits here.

Request a quote See the ranking

  1. 1East Coast Heating and Air Conditioning19 in last 90 days36
  2. 2Hart Plumbing & Heating10 in last 90 days32
  3. 3William Martin9 in last 90 days29
  4. 4Pettigrew Plumbing & HVAC12 in last 90 days23
  5. 5Mcp Hvac5 in last 90 days13
  6. 6Key HVAC4 in last 90 days9
  7. 7A Merrie Sweepe4 in last 90 days6
  8. 7Architectural Fireplaces Inc.3 in last 90 days6
  9. 7Joy's HVAC Services Inc3 in last 90 days6
  10. 10Dowling Corporation4 in last 90 days5
  11. 10Buchanan Heating Inc.3 in last 90 days5
  12. 12Abbott HVAC, LLC2 in last 90 days4
  13. 12RPH Inc2 in last 90 days4
  14. 14Denron Plumbing &HVAC,LLC3 in last 90 days3
  15. 14Diesel Direct LLC dba Atlantic Fuels3 in last 90 days3
  16. 14Powerhouse Plumbing and Heating3 in last 90 days3
  17. 14Aph2 in last 90 days3
  18. 14Strogen's Service Experts2 in last 90 days3
  19. 14R. A. Mechanical, Inc.1 in last 90 days3
  20. 20Enrico D'Renado2 in last 90 days2
  21. 20Mackenzie Fuels2 in last 90 days2
  22. 20Matthew Knapp2 in last 90 days2
  23. 20Revision Energy Inc2 in last 90 days2
  24. 20The Kane Company2 in last 90 days2
  25. 20ARM mechanical llc1 in last 90 days2
  26. 20Admiral Climate Control1 in last 90 days2
  27. 20Brulotte INC1 in last 90 days2
  28. 20Granite State Plumbing and Heating1 in last 90 days2
  29. 20Maguire Brothers Plumbing1 in last 90 days2
  30. 20Oliver Mechanical1 in last 90 days2
  31. 20Townsend Energynone in last 90 days2
  32. 32AC Darois Electric, LLC1 in last 90 days1
  33. 32AJ LeBlanc Heating1 in last 90 days1
  34. 32Atlantic Gas Techs LLC1 in last 90 days1
  35. 32Black Dog1 in last 90 days1
  36. 32LEC Construction & Maintenance1 in last 90 days1
  37. 32Nick Gray Builders,LLC1 in last 90 days1
  38. 32Superior Plus Propane1 in last 90 days1
  39. 32White’s Rentals1 in last 90 days1
  40. 32cochecho P&HH1 in last 90 days1
  41. 32Baum Plumbingnone in last 90 days1
  42. 32Ben Pettigrewnone in last 90 days1
  43. 32DECCO, Inc.none in last 90 days1
  44. 32Gerrys Gas Services Llcnone in last 90 days1
  45. 32J Lamport Plumbing & Heating LLCnone in last 90 days1
  46. 32Joyce Cooling & Heatingnone in last 90 days1
  47. 32River Birch Buildersnone in last 90 days1
  48. 32Robert W. Piersiak Plumbing & Heatingnone in last 90 days1

Recent hvac permits in Portsmouth

  1. Nov 12, 2026Remove liner tiles in chimney fdamaged flue and reline from top-to-bottom with a 7"x 11", 304 alloy, heavy-wall stainlesA Merrie Sweepe · Sheet metal · 1 · #MECH-26-624
  2. Nov 11, 2026Upstairs - ADP Air Handler + Rheem Condenser - 13 SEER- ADP Air Handler + Rheem Condenser - 13 SEERMcp Hvac · Sheet metal · 1 · #MECH-26-622
  3. Nov 11, 2026Pipe existing gas line to new meter location to include connection to generator and boiler Conversion of boiler includedHart Plumbing & Heating · Sheet metal · 1 · #MECH-26-621
  4. Nov 10, 2026Install 1 new mini split condenser and 2 new mini split indoor headsAbbott HVAC, LLC · Sheet metal · 1 · #MECH-26-617
  5. Nov 10, 2026Installation of New Airco Lowboy Furnace - 105k BTUMcp Hvac · Sheet metal · 1 · #MECH-26-618
  6. Nov 9, 2026Installing underground & aboveground, gas lines to Generator, pool heater, and house for Direct vent Jotul stove that weAtlantic Gas Techs LLC · Sheet metal · 1 · #MECH-26-614
  7. Nov 9, 2026Gas pipe from new meter location to existing propane line with black iron - Includes conversion kit and install for boilHart Plumbing & Heating · Sheet metal · 1 · #MECH-26-616
  8. Nov 9, 2026Install a gas furnace with a/c for the first and second floors, ductless heat pump on the thirdBuchanan Heating Inc. · Sheet metal · 1 · #MECH-26-615
  9. Nov 6, 2026Gaspipe two cookstoves (1 in each apartment)Admiral Climate Control · Sheet metal · 1 · #MECH-26-612
  10. Nov 6, 2026Install (6) Mini Split Heads Inside and (2) Condenser Heat Pumps Outside. Install New Baseboard in (2) New Bathrooms andAbbott HVAC, LLC · Sheet metal · 1 · #MECH-26-613

How hvac compares in Portsmouth

Other trades in Portsmouth

Electricians 495Building contractors 257Plumbers 233Site work contractors 131Roofing contractors 118Gas fitters 87Window & door contractors 40Deck & porch builders 25Insulation contractors 21

HVAC contractors nearby

Warwick 812Cranston 595Cambridge 538South Kingstown 456Portsmouth 399Coventry 385Newport 376Narragansett 361

Get quotes from active hvac contractors in Portsmouth

Request a quote and we route it to contractors with documented permits here. No ratings invented — you see their permit history first.

Request a quote Full leaderboard

Source: Portsmouth OpenGov. Data updated Nov 13, 2026. A permit shows a job was filed with the town. It doesn’t show whether the work was finished or how it turned out. Rankings are by permit volume.