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ContractorsRanked

Emergency HVAC Contractors in Derry Village, NH (2026)

Top 50 of 609 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 Derry Village: 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 Derry Village at a glance

Top emergency HVAC contractors in Derry Village at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Heritage Home Service954.8★ (7,956)Auburn, 5 mi away24/7
2High Ground Service Pros - Plumbers Electricians & HVAC Technicians924.9★ (2,303)Manchester, 11 mi away24/7
3Southern New Hampshire Plumbing and Heating914.8★ (433)Londonderry, 2 mi away24/7
4Patriot Oil Burner Service905.0★ (263)Chester, 6 mi away24/7
5Derry Plumbing & Heating904.8★ (176)Derry, 1 mi away24/7
6Walley's Heating & Air904.9★ (793)Nashua, 12 mi away24/7
7LHR Plumbing Heating Cooling and Electric904.9★ (454)Manchester, 9 mi away24/7
8A.J. LeBlanc Heating, A/C, Plumbing & Electrical904.8★ (683)Bedford, 10 mi away24/7
9MillTown Plumbing, Heating, Cooling and Electrical904.8★ (2,927)Chelmsford, 19 mi away24/7
10Northeast Heating & Cooling895.0★ (449)Haverhill, 13 mi away24/7

Call an emergency HVAC contractor in Derry Village 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 Derry Village, 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 609 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.

  1. Ranked #1 in Derry Village

    #1 Heritage Home Service

    Based in Auburn, 5 mi away

    95/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.8★ from 7,956 Google reviews, 7,956 Google reviews.

    • 4.8★ from 7,956 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    28 Commercial Ct, Auburn, NH 03032
    View profile for Heritage Home Service(603) 627-2730

Top 50 of 609 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 Derry Village, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Danerik Mechanical, LLC.875.0★ (45)7 mi
27LHR Plumbing, Heating & AC Repair874.9★ (128)12 mi
28Patriot Heating & Cooling, LLC874.8★ (174)12 mi
29J. Griffin Heating & Plumbing Inc875.0★ (643)25 mi
30Clear All Cooling & Heating875.0★ (54)9 mi
31Pilot Plumbing, Heating and Cooling | Plumber, Tankless Water Heater Repair & Installation | Heating & AC Repair Sandown, NH875.0★ (51)9 mi
32Cal's Air Conditioning & Heating875.0★ (18)3 mi
33Morris Plumbing, Heating & Air Conditioning875.0★ (582)25 mi
34Done right plumbing heating cooling875.0★ (46)9 mi
35Fuel NRG874.5★ (94)6 mi
36Denommee Plumbing, HVAC & Electric874.7★ (427)17 mi
37Cool-Rite Mechanical Inc.864.9★ (183)17 mi
38City Fuel864.6★ (101)9 mi
39Ferris Plumbing, Heating & Air864.9★ (77)13 mi
40NextGen Aire864.8★ (271)19 mi
41Kingdom Cooling864.5★ (15)2 mi
42Excel Mechanical864.8★ (444)22 mi
43Modern Temperature Control864.9★ (96)16 mi
44YurTek - Heating and Cooling865.0★ (86)16 mi
45Druziako HVAC Inc.864.8★ (185)18 mi
46American Air HVAC864.8★ (223)20 mi
47Georges Heating and Cooling864.3★ (82)7 mi
48Traditional Oil Heating Services855.0★ (33)12 mi
49R.H. Young Cooling and Heating, Inc.854.8★ (265)21 mi
50Advanced Quality Air854.8★ (20)8 mi

How we ranked emergency HVAC contractors in Derry Village

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 Derry Village: questions

Which HVAC contractors in Derry Village are open 24/7?

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

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

Heritage Home Service is #1, with a CR Score of 95 out of 100 on emergency weights.

How are emergency HVAC contractors in Derry Village 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 Derry Village

  1. October 2026: CR Scores recalculated for 609 hvac contractors serving Derry Village.
  2. October 2026: 9 duplicate listings merged.

More emergency and heating and cooling pages