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ContractorsRanked

Emergency HVAC Contractors in Northfield, NH (2026)

Top 50 of 166 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 Northfield: Rowell's Services, 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 Northfield at a glance

Top emergency HVAC contractors in Northfield at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Rowell's Services964.8★ (3,082)Northfield24/7
2Heritage Home Service924.9★ (802)Laconia, 10 mi away24/7
3Just Hot Water LLC925.0★ (121)Northfield24/7
4Total Climate Control Plumbing, Heating & Air Conditioning914.8★ (633)Concord, 9 mi away24/7
5Triumph Home Services884.9★ (539)Concord, 21 mi away24/7
6Hall's Burner Service Inc884.7★ (99)Franklin, 8 mi away24/7
7Comfort Matters Heating & Cooling LLC885.0★ (51)Concord, 9 mi away24/7
8Above & Below HVAC874.9★ (32)Franklin, 6 mi away24/7
9Bigfoot HVAC875.0★ (35)Franklin, 9 mi away24/7
10Windham Mechanical LLC874.9★ (73)Methuen, 14 mi away24/7

Call an emergency HVAC contractor in Northfield 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 Northfield, 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 166 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 Northfield

    #1 Rowell's Services

    Based in Northfield

    96/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.8★ from 3,082 Google reviews, 3,082 Google reviews.

    • 4.8★ from 3,082 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    359 Tilton Rd, Northfield, NH 03276
    View profile for Rowell's Services(603) 729-3318

  18. #18 Gunstock HVAC

    Based in Gilford, 13 mi away

    84/100CR Score

    Ranked #18 because of its Google rating and availability: 4.8★ from 20 Google reviews, open 24/7.

    • 4.8★ from 20 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    299 Gunstock Hill Rd, Gilford, NH 03249
    View profile for Gunstock HVAC(603) 293-8088

Top 50 of 166 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 Northfield, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26NEXTgen Heating, Cooling & Gas825.0★ (21)19 mi
27Advanced Comfort825.0★ (133)15 mi
28CMC Mechanical Services LLC812.0★ (4)10 mi
29Mitch Comeau’s Plumbing & Heating815.0★ (9)6 mi
30Seely Plumbing813.5★ (8)15 mi
31Laconia Plumbing & Heating LLC814.9★ (15)9 mi
32DG III Plumbing & Heating, LLC814.9★ (17)In Northfield
33Belknap Plumbing and Heating814.0★ (4)15 mi
34Murphy's HVAC LLC815.0★ (11)25 mi
35Puckett Heating and AC804.9★ (11)15 mi
36Competitive Plumbing & Heating805.0★ (52)23 mi
37ALLC Mechanical805.0★ (11)3 mi
38Total Climate Control802.6★ (19)16 mi
39Michael McGrath Heating Oil & Diesel795.0★ (11)14 mi
40Chantz Mello Plumbing and Heating795.0★ (20)14 mi
41Advanced Plumbing LLC795.0★ (129)23 mi
42Alpha Tech Refrigeration795.0★ (5)21 mi
43Winnipesaukee Heating & Cooling Inc.795.0★ (7)23 mi
44East Coast Plumbing and Heating LLC785.0★ (9)16 mi
45Rymes Propane & Oil783.2★ (9)In Northfield
46Meticulous Plumbing and Heating774.9★ (7)14 mi
47Berger HVAC, LLC773.0★ (4)23 mi
48Sunrise Heating and Cooling764.8★ (30)19 mi
49ED'S HEATING SERVICE755.0★ (7)22 mi
50Scho's Plumbing and Heating, LLC.745.0★ (21)8 mi

How we ranked emergency HVAC contractors in Northfield

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 Northfield: questions

Which HVAC contractors in Northfield are open 24/7?

25 on this list post 24/7 hours, including Rowell's Services, Heritage Home Service, Just Hot Water LLC, Total Climate Control Plumbing, Heating & Air Conditioning and Triumph Home Services.

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

Rowell's Services is #1, with a CR Score of 96 out of 100 on emergency weights.

How are emergency HVAC contractors in Northfield 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 Northfield

  1. October 2026: CR Scores recalculated for 166 hvac contractors serving Northfield.

More emergency and heating and cooling pages