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Emergency HVAC Contractors in Hampton, NH (2026)

Top 50 of 283 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Hampton: Heritage Home Service, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in Hampton at a glance

Top emergency HVAC contractors in Hampton at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Heritage Home Service684.9★ (2,248)Hampton24/7
2Key Heating & Air Conditioning644.8★ (692)Exeter, 8 mi away24/7
3NextGen Aire624.8★ (271)Amesbury, 9 mi away24/7
4Morris Plumbing, Heating & Air Conditioning625.0★ (582)Andover, 18 mi away24/7
5Northeast Heating & Cooling615.0★ (449)Haverhill, 19 mi away24/7
6MVP Home Services614.7★ (545)Haverhill, 16 mi away24/7
7128 Plumbing, Heating, Cooling & Electric615.0★ (562)North Andover, 22 mi away24/7
8HeatPro HVAC614.8★ (138)Chester, 11 mi away24/7
9East Coast Gas Fitters, LLC605.0★ (38)Exeter, 6 mi away24/7
10Modern Temperature Control604.9★ (96)Merrimac, 11 mi away24/7

Call an emergency HVAC contractor in Hampton now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Hampton, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 283 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  3. #3 NextGen Aire

    Based in Amesbury, 9 mi away

    62/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.8★ from 271 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 271 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    31 S Hunt Rd, Amesbury, MA 01913
    View profile for NextGen Aire(978) 566-9601

  6. #6 MVP Home Services

    Based in Haverhill, 16 mi away

    61/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.7★ from 545 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 545 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    72 S Kimball St, Haverhill, MA 01835
    View profile for MVP Home Services(978) 228-1904

  8. #8 HeatPro HVAC

    Based in Chester, 11 mi away

    61/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.8★ from 138 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 138 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for HeatPro HVAC(603) 923-3103

  12. #12 Dry Air Systems Inc

    Based in Newburyport, 10 mi away

    60/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.7★ from 61 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 61 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3 Stanley Tucker Dr, Newburyport, MA 01950
    View profile for Dry Air Systems Inc(978) 948-2151

  15. #15 Heritage Home Service

    Based in Portsmouth, 11 mi away

    59/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 45 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    28 Deer St ste 201, Portsmouth, NH 03801
    View profile for Heritage Home Service(603) 663-0531

  19. #19 Pilot Plumbing, Heating and Cooling | Plumber, Tankless Water Heater Repair & Installation | Heating & AC Repair Sandown, NH

    Based in Sandown, 16 mi away

    58/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 51 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    265 Fremont Rd, Sandown, NH 03873
    View profile for Pilot Plumbing, Heating and Cooling | Plumber, Tankless Water Heater Repair & Installation | Heating & AC Repair Sandown, NH(603) 634-8531

  22. #22 Townsend Energy

    Based in Portsmouth, 9 mi away

    58/100CR Score

    Ranked #22 because of its Google rating and trade focus: 3.7★ from 71 Google reviews, listed on Google as “HVAC contractor”.

    • 3.7★ from 71 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    225 Greenleaf Ave, Portsmouth, NH 03801
    View profile for Townsend Energy(603) 379-3655

  24. #24 Extreme Plumbing

    Based in Haverhill, 16 mi away

    58/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.7★ from 51 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 51 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    38 Railroad St, Haverhill, MA 01835
    View profile for Extreme Plumbing(978) 352-7900

Top 50 of 283 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Hampton, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Greater Seacoast HVAC574.5★ (8)7 mi
27Northshore Comfort Control575.0★ (65)24 mi
28CircumVent LLC575.0★ (40)21 mi
29Capstone Mechanical563.4★ (5)7 mi
30Maffei Services564.7★ (848)15 mi
31Danerik Mechanical, LLC.565.0★ (45)24 mi
32CALLAHAN OIL BURNER SERVICE'S564.7★ (12)15 mi
33Proactive Heating & Cooling565.0★ (12)15 mi
34SRV Plumbing and Heating565.0★ (58)12 mi
35BRR HVAC/R565.0★ (5)11 mi
36Climate Design Systems, LLC564.3★ (89)24 mi
37HomeStyle Heating and Air LLC565.0★ (26)22 mi
38T&R Oil Burner Service565.0★ (14)18 mi
39Elite Gloucester HVAC Repair555.0★ (25)24 mi
40All American Plumbing and Heating554.9★ (58)14 mi
41Cal's Air Conditioning & Heating555.0★ (18)22 mi
42Comfort Services LLC555.0★ (22)24 mi
43Haverhill HVAC555.0★ (16)21 mi
44Freeman Fuel Co554.4★ (30)23 mi
45Freeman Mechanical555.0★ (8)18 mi
46Mora's Plumbing & Heating,LLC554.9★ (71)18 mi
47Kingdom Cooling544.5★ (15)23 mi
48DRB Heating and Cooling534.6★ (10)24 mi
49Stevens Mechanical534.9★ (9)24 mi
50Legacy Plumbing and Heating L.L.C.535.0★ (64)23 mi

How we ranked emergency HVAC contractors in Hampton

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Hampton: questions

Which HVAC contractors in Hampton are open 24/7?

25 on this list post 24/7 hours, including Heritage Home Service, Key Heating & Air Conditioning, NextGen Aire, Morris Plumbing, Heating & Air Conditioning and Northeast Heating & Cooling.

Who is ranked #1 for emergency heating and cooling in Hampton, NH?

Heritage Home Service is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Hampton ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Hampton

  1. October 2026: CR Scores recalculated for 283 hvac contractors serving Hampton.
  2. October 2026: 7 duplicate listings merged.

More emergency and heating and cooling pages