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Best HVAC Contractors in Belmont, MA (2026)

1,265 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Belmont: Winters Home Services, CR Score 66/100; 4.8★ from 2,862 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): 128 Plumbing, Heating, Cooling & Electric, posts 24/7 hours; ranked #2 of 1,265.

  3. 5

    Most-reviewed: Sila Heating, Air Conditioning, Plumbing & Electrical, 4,377 Google reviews at 4.9★, the most of 1,265 ranked; ranked #5.

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

1,265 Belmont HVAC contractors are ranked here by CR Score, from ten published factors. 395 are open 24/7, 720 open Saturdays and 537 open Sundays, based on posted hours. The median Google rating is 4.8★ across 1,265 rated businesses.

Top 10 HVAC contractors in Belmont at a glance

Top 10 HVAC contractors in Belmont at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Winters Home Services664.8★ (2,862)Watertown, 2 mi away24/7Overall
2128 Plumbing, Heating, Cooling & Electric664.9★ (3,912)Wakefield, 9 mi away24/7Emergencies
3Central Cooling & Heating664.9★ (3,169)Woburn, 8 mi away24/7—
4Akian Plumbing, Heating, Cooling & Electric654.8★ (1,625)Watertown, 3 mi away24/7—
5Sila Heating, Air Conditioning, Plumbing & Electrical654.9★ (4,377)Stoneham, 7 mi awaySat · Sun · EveningsMost reviews
6Heritage Home Service644.8★ (3,352)Wilmington, 14 mi away24/7—
7S.D.H. Plumbing & Heating634.9★ (389)Newton, 4 mi away24/7—
8Papalia Home Services634.9★ (3,978)Acton, 19 mi away24/7—
9Trust 1 Services Plumbing, Heating, and Air Conditioning634.8★ (1,567)Quincy, 11 mi away24/7—
10Addario's Plumbing, Heating, Cooling & Electrical Services634.6★ (2,076)Wilmington, 9 mi away24/7—

The 1,265 best HVAC contractors in Belmont, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

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

  1. Ranked #1 in Belmont

    Based in Watertown, 2 mi away

    66/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.8★ from 2,862 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,862 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    108 School St, Watertown, MA 02472
  2. Based in Wilmington, 14 mi away

    64/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.8★ from 3,352 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 3,352 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    323 Andover St STE 2, Wilmington, MA 01887
  3. Based in Acton, 19 mi away

    63/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 3,978 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 3,978 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1220 Liberty Square Rd, Boxborough, MA 01719
  4. Based in Boston, 7 mi away

    62/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 206 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 206 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    31 Milk St, Boston, MA 02109

HVAC contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 1,265 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Belmont, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Boston Standard Company624.7★ (2,808)19 mi
27Mike Giasullo Oil Burner Service Inc.625.0★ (476)15 mi
28Full Spectrum HVAC Service624.9★ (106)4 mi
29128 Plumbing, Heating, Cooling & Electric615.0★ (443)15 mi
30HL Bowman Inc Plumbing Heating & AC614.8★ (1,026)16 mi
31Super Service Today614.7★ (1,672)17 mi
32Absolute Precision Plumbing, Heating & Cooling614.9★ (491)15 mi
33Green Energy AC Heating & Plumbing Repair614.8★ (257)9 mi
34PerfectTemp HVAC Service614.8★ (90)3 mi
35J. Griffin Heating & Plumbing Inc615.0★ (643)13 mi
36ABV Appliance614.8★ (300)10 mi
37ARS / Rescue Rooter614.6★ (2,547)18 mi
38Champion Heating & Air Conditioning614.8★ (104)4 mi
39Green Flow Solution614.9★ (82)4 mi
40Pann Home Services & Remodeling614.5★ (331)4 mi
41Excel Mechanical614.8★ (444)13 mi
42PerfectTemp HVAC Service614.9★ (85)5 mi
43MacFarlane Energy614.9★ (4,144)9 mi
44Blue Bear Plumbing, Heating & Air614.9★ (234)12 mi
45Champion Heating & Air Conditioning614.9★ (90)6 mi
46Blue Bear Plumbing Heating & Air614.8★ (2,030)23 mi
47Boston Air Duct Cleaning614.7★ (107)4 mi
48Boston Budget Plumbing Heating and Cooling614.8★ (382)13 mi
49Comfort Masters HVAC Service614.8★ (112)6 mi
50A. Fagundes Plumbing & Heating Inc.614.8★ (1,626)22 mi

Also serving Belmont

20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked HVAC contractors serving Belmont
BusinessGoogle ratingDistance
All Seasons Home HVAC5.0★ (2)7 mi
Arctic Engineering Co3.0★ (2)6 mi
ArcticAardvark Comfort3.0★ (2)3 mi
B & X & T HVAC3.0★ (2)In Belmont
Fotis Construction & Remodeling, Inc.5.0★ (3)In Belmont
Heating & Cooling5.0★ (2)7 mi
KEN's HVAC SERVICE5.0★ (97)3 mi
Landry Mechanical Inc Plumbing HVAC & Electric4.8★ (581)15 mi
Medford Wellington Service Co.5.0★ (2)5 mi
Monteiro Plumbing & Heating1.0★ (2)4 mi
N & T HVAC5.0★ (2)3 mi
Panza Plumbing & Heating3.0★ (2)4 mi
Performance Inc.5.0★ (2)7 mi
R.Y. HVAC5.0★ (2)6 mi
Statewide Mechanical Services, Inc.5.0★ (2)7 mi
T Y B HVAC Solutions1.0★ (2)4 mi
TBros - Trethewey Brothers Inc4.7★ (232)8 mi
The Heat Pump Store by AkianIn Belmont
Tony Sousa Home Services5.0★ (2)6 mi
Tziavas Plumbing Heating & Gas FittingIn Belmont

How much do HVAC contractors cost in Belmont?

National price ranges in USD, not adjusted for Belmont. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Belmont?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

When to hire an HVAC contractor in Massachusetts

In Massachusetts, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

How we ranked Belmont HVAC contractors

We scored 1,265 Belmont HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

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 fromIn Belmont data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Belmont: frequently asked questions

Who is the best HVAC contractor in Belmont?

By CR Score, the highest-ranked HVAC contractor in Belmont, MA is Winters Home Services with a CR Score of 66/100. It has 4.8★ from 2,862 Google reviews. It is open 24/7. 128 Plumbing, Heating, Cooling & Electric (#2) and Central Cooling & Heating (#3) follow. We ranked 1,265 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Belmont?

ContractorsRanked ranks 1,265 HVAC contractors serving Belmont, MA. 1 of them is based in Belmont; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Belmont are open 24/7?

395 ranked HVAC contractors in Belmont post 24/7 hours. The highest-ranked are Winters Home Services (#1), 128 Plumbing, Heating, Cooling & Electric (#2) and Central Cooling & Heating (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Belmont work on weekends?

720 of 1,265 ranked HVAC contractors post Saturday hours and 537 post Sunday hours. The highest-ranked open Saturdays are Winters Home Services (#1), 128 Plumbing, Heating, Cooling & Electric (#2) and Central Cooling & Heating (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Belmont?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Belmont. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Belmont HVAC contractors have?

The median Google rating among 1,265 rated HVAC contractors in Belmont is 4.8★, with a median of 17 reviews. Sila Heating, Air Conditioning, Plumbing & Electrical has the most, 4,377 reviews, and ranks #5. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Belmont?

In Massachusetts, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

How does ContractorsRanked rank HVAC contractors?

Each HVAC contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Belmont

  1. October 2026: CR Scores recalculated for 1,265 hvac contractors serving Belmont.
  2. October 2026: 8 duplicate listings merged.

More HVAC contractors and Belmont pages

Other trades in Belmont