Skip to content
ContractorsRanked

Emergency HVAC Contractors in Sandown, NH (2026)

Top 50 of 583 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 Sandown: 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 Sandown at a glance

Top emergency HVAC contractors in Sandown at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Heritage Home Service944.8★ (7,956)Auburn, 9 mi away24/7
2High Ground Service Pros - Plumbers Electricians & HVAC Technicians914.9★ (2,303)Manchester, 15 mi away24/7
3Patriot Oil Burner Service915.0★ (263)Chester, 5 mi away24/7
4Heritage Home Service904.9★ (2,248)Hampton, 19 mi away24/7
5Northeast Heating & Cooling905.0★ (449)Haverhill, 12 mi away24/7
6Southern New Hampshire Plumbing and Heating894.8★ (433)Londonderry, 9 mi away24/7
7Key Heating & Air Conditioning894.8★ (692)Exeter, 12 mi away24/7
8Pilot Plumbing, Heating and Cooling | Plumber, Tankless Water Heater Repair & Installation | Heating & AC Repair Sandown, NH895.0★ (51)Sandown24/7
9128 Plumbing, Heating, Cooling & Electric895.0★ (562)North Andover, 17 mi away24/7
10Heritage Home Service894.8★ (3,352)Wilmington, 23 mi away24/7

Call an emergency HVAC contractor in Sandown 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 Sandown, 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 583 is on the HVAC contractors page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  8. #8 Pilot Plumbing, Heating and Cooling | Plumber, Tankless Water Heater Repair & Installation | Heating & AC Repair Sandown, NH

    Based in Sandown

    89/100CR Score

    Ranked #8 because of its Google rating and availability: 5.0★ from 51 Google reviews, open 24/7.

    • 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

  23. #23 NextGen Aire

    Based in Amesbury, 14 mi away

    87/100CR Score

    Ranked #23 because of its Google rating and availability: 4.8★ from 271 Google reviews, open 24/7.

    • 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

Top 50 of 583 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 Sandown, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Triumph Home Services874.9★ (539)21 mi
27A. Fagundes Plumbing & Heating Inc.874.9★ (348)19 mi
28Mike Giasullo Oil Burner Service Inc.875.0★ (476)23 mi
29128 Plumbing, Heating, Cooling & Electric875.0★ (443)24 mi
30Cal's Air Conditioning & Heating865.0★ (18)4 mi
31Traditional Oil Heating Services865.0★ (33)9 mi
32LHR Plumbing, Heating & AC Repair864.9★ (128)16 mi
33Diamond Mechanical LLC864.5★ (83)8 mi
34Ferris Plumbing, Heating & Air864.9★ (320)22 mi
35HeatPro HVAC864.8★ (138)15 mi
36Clear All Cooling & Heating865.0★ (54)14 mi
37Cool-Rite Mechanical Inc.864.9★ (183)20 mi
38Done right plumbing heating cooling855.0★ (46)14 mi
39JP HVAC - Heating & Cooling855.0★ (35)12 mi
40Excel Mechanical854.8★ (444)24 mi
41Fuel NRG854.5★ (94)11 mi
42Denommee Plumbing, HVAC & Electric854.7★ (427)22 mi
43American Air HVAC854.8★ (223)22 mi
44Extreme Plumbing854.7★ (51)12 mi
45Kingdom Cooling854.5★ (15)5 mi
46City Fuel854.6★ (101)14 mi
47YurTek - Heating and Cooling855.0★ (86)20 mi
48Haverhill HVAC855.0★ (16)4 mi
49Freeman Mechanical855.0★ (8)1 mi
50East Coast Gas Fitters, LLC855.0★ (38)16 mi

How we ranked emergency HVAC contractors in Sandown

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency HVAC contractors in Sandown: questions

Which HVAC contractors in Sandown are open 24/7?

25 on this list post 24/7 hours, including Heritage Home Service, High Ground Service Pros - Plumbers Electricians & HVAC Technicians, Patriot Oil Burner Service, Heritage Home Service and Northeast Heating & Cooling.

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

Heritage Home Service is #1, with a CR Score of 94 out of 100 on emergency weights.

How are emergency HVAC contractors in Sandown ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. 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 Sandown

  1. October 2026: CR Scores recalculated for 583 hvac contractors serving Sandown.
  2. October 2026: 9 duplicate listings merged.

More emergency and heating and cooling pages