64/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 7,956 Google reviews, the most in Kingston.
- 4.8★ from 7,956 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 28 Commercial Ct, Auburn, NH 03032
Best HVAC Contractors in Kingston, NH (2026)
462 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Kingston: Heritage Home Service, CR Score 64/100; 4.8★ from 7,956 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Heritage Home Service, posts 24/7 hours; ranked #2 of 462.
- 43
Most-reviewed: Joyce Cooling & Heating Inc., 5,079 Google reviews at 4.9★, the most of 462 ranked after Heritage Home Service; ranked #43.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
462 Kingston HVAC contractors are ranked here by CR Score, from ten published factors. 124 are open 24/7, 209 open Saturdays and 160 open Sundays, based on posted hours. The median Google rating is 4.9★ across 462 rated businesses.
Top 10 HVAC contractors in Kingston at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Heritage Home Service | 64 | 4.8★ (7,956) | Auburn, 15 mi away | 24/7 | Overall |
| 2 | Heritage Home Service | 63 | 4.9★ (2,248) | Hampton, 13 mi away | 24/7 | Emergencies |
| 3 | Key Heating & Air Conditioning | 63 | 4.8★ (692) | Exeter, 6 mi away | 24/7 | — |
| 4 | Northeast Heating & Cooling | 62 | 5.0★ (449) | Haverhill, 13 mi away | 24/7 | — |
| 5 | High Ground Service Pros - Plumbers Electricians & HVAC Technicians | 61 | 4.9★ (2,303) | Manchester, 22 mi away | 24/7 | — |
| 6 | Patriot Oil Burner Service | 61 | 5.0★ (263) | Chester, 11 mi away | 24/7 | — |
| 7 | NextGen Aire | 61 | 4.8★ (271) | Amesbury, 9 mi away | 24/7 | — |
| 8 | 128 Plumbing, Heating, Cooling & Electric | 61 | 5.0★ (562) | North Andover, 18 mi away | 24/7 | — |
| 9 | Heritage Home Service | 60 | 4.8★ (3,352) | Wilmington, 24 mi away | 24/7 | — |
| 10 | Morris Plumbing, Heating & Air Conditioning | 60 | 5.0★ (582) | Andover, 19 mi away | 24/7 | — |
The 462 best HVAC contractors in Kingston, 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.
Based in Hampton, 13 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 2,248 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,248 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 179 Lafayette Rd, North Hampton, NH 03862
Based in Exeter, 6 mi away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 692 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 692 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8 Continental Dr, Exeter, NH 03833
Based in Haverhill, 13 mi away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 449 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 449 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12 Bond St, Haverhill, MA 01835
Based in Manchester, 22 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 2,303 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,303 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 201 Allard Dr, Manchester, NH 03102
Based in Chester, 11 mi away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 263 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 263 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 261 N Pond Rd, Chester, NH 03036
#7 NextGen Aire
Based in Amesbury, 9 mi away
61/100CR ScoreRanked #7 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
Based in North Andover, 18 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 562 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 562 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3 Johnson St, North Andover, MA 01845
Based in Wilmington, 24 mi away
60/100CR ScoreRanked #9 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
Based in Andover, 19 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 582 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 582 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Old Right Rd Unit A2, Ipswich, MA 01938
Based in Haverhill, 12 mi away
60/100CR ScoreRanked #11 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
Based in Merrimac, 7 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 96 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 96 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 40 Winter St, Merrimac, MA 01860
Based in Sandown, 5 mi away
60/100CR ScoreRanked #13 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
Based in Londonderry, 15 mi away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 433 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 433 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 39 Rockingham Rd, Londonderry, NH 03053
#15 HeatPro HVAC
Based in Chester, 11 mi away
59/100CR ScoreRanked #15 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
Based in Methuen, 16 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 313 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 313 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1 Toby St Unit 1, Methuen, MA 01844
Based in Exeter, 6 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 35 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3 Kelby Scott Way, Exeter, NH 03833
Based in Manchester, 20 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 454 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 454 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 326 Lincoln St, Manchester, NH 03103
Based in Nashua, 24 mi away
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 793 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 793 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 35 E Hollis St, Nashua, NH 03060
Based in Derry, 14 mi away
59/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 176 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 176 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 71 Birch St Suite A, Derry, NH 03038
Based in Exeter, 5 mi away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.5★ from 83 Google reviews, listed on Google as “HVAC contractor”.
- 4.5★ from 83 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 388 NH-125 Suite 1, Brentwood, NH 03833
Based in Bedford, 22 mi away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 683 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 683 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 45 S River Rd, Bedford, NH 03110
Based in Exeter, 9 mi away
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 38 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Bunker Hill Ave, Stratham, NH 03885
Based in Haverhill, 9 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 33 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Manchester, 20 mi away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 598 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 598 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 76 Maple St, Manchester, NH 03103
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 462 ranked HVAC contractors here; the rest are on their profiles.
Also serving Kingston
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.
| Business | Google rating | Distance |
|---|---|---|
| A1 Restaurant Ventilation | 3.0★ (2) | 9 mi |
| All Purpose Mechanical | 4.5★ (2) | In Kingston |
| Bolla Electrical & HVAC Services | 5.0★ (2) | 11 mi |
| City Fuel | 4.6★ (101) | 21 mi |
| Climate Design Systems, LLC | 4.3★ (89) | 16 mi |
| Dan Rich Plumbing & Heating Co | 2.5★ (2) | 11 mi |
| Fuel NRG | 4.5★ (94) | 18 mi |
| Jim Tobey Plumbing & Heating | 3.0★ (2) | 4 mi |
| Kingdom Cooling | 4.5★ (15) | 12 mi |
| Kingston Mechanical Inc | 5.0★ (1) | In Kingston |
| Krafton plumbing and heating | 5.0★ (2) | In Kingston |
| LHR Plumbing, Heating & AC Repair | 4.9★ (128) | 22 mi |
| Mc Nally & Sons Plumbing & Heating | 5.0★ (2) | 11 mi |
| Merrimack Valley Plumbing | 3.0★ (2) | 14 mi |
| Nadeau Gas & Oil Services, LLC | 5.0★ (2) | 7 mi |
| North Shore Home Energy LLC | 5.0★ (1) | In Kingston |
| Palmer and Sicard, Inc. | 3.9★ (20) | 8 mi |
| Patriot Heating & Cooling, LLC | 4.8★ (174) | 15 mi |
| Revise Heating and Cooling | 5.0★ (2) | 12 mi |
| Spencer Deal Heating Services LLC | 4.0★ (2) | 8 mi |
How much do HVAC contractors cost in Kingston?
National price ranges in USD, not adjusted for Kingston. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
When to hire an HVAC contractor in New Hampshire
In New Hampshire, 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 Kingston HVAC contractors
We scored 462 Kingston 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.
| Factor | Weight | Computed from | In Kingston data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
HVAC contractors in Kingston: frequently asked questions
Who is the best HVAC contractor in Kingston?
By CR Score, the highest-ranked HVAC contractor in Kingston, NH is Heritage Home Service with a CR Score of 64/100. It has 4.8★ from 7,956 Google reviews. It is open 24/7. Heritage Home Service (#2) and Key Heating & Air Conditioning (#3) follow. We ranked 462 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Kingston?
ContractorsRanked ranks 462 HVAC contractors serving Kingston, NH. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Kingston are open 24/7?
124 ranked HVAC contractors in Kingston post 24/7 hours. The highest-ranked are Heritage Home Service (#1), Heritage Home Service (#2) and Key Heating & Air Conditioning (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Kingston work on weekends?
209 of 462 ranked HVAC contractors post Saturday hours and 160 post Sunday hours. The highest-ranked open Saturdays are Heritage Home Service (#1), Heritage Home Service (#2) and Key Heating & Air Conditioning (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Kingston?
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 Kingston. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Kingston HVAC contractors have?
The median Google rating among 462 rated HVAC contractors in Kingston is 4.9★, with a median of 16 reviews. Heritage Home Service has the most, 7,956 reviews, and ranks #1. 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 Kingston?
In New Hampshire, 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 Kingston
- October 2026: CR Scores recalculated for 462 hvac contractors serving Kingston.
- October 2026: 8 duplicate listings merged.
More HVAC contractors and Kingston pages
HVAC contractors near Kingston
- HVAC contractors in Exeter, NH336 ranked
- HVAC contractors in Sandown, NH565 ranked
- HVAC contractors in Plaistow, NH725 ranked
- HVAC contractors in Hampstead, NH634 ranked
- HVAC contractors in Atkinson, NH743 ranked
- HVAC contractors in Seabrook, NH352 ranked
- HVAC contractors in Chester, NH526 ranked
- HVAC contractors in Hampton, NH283 ranked
- HVAC contractors in Stratham Station, NH243 ranked
- HVAC contractors in Newmarket, NH275 ranked
Other trades in Kingston
- Roofers in Kingston705 ranked
- Plumbers in Kingston304 ranked
- Electricians in Kingston299 ranked
- General contractors in Kingston469 ranked
- Painters in Kingston97 ranked
- Landscapers in Kingston145 ranked
- Handymen in Kingston43 ranked
- Kitchen remodelers in Kingston248 ranked
- Bathroom remodelers in Kingston229 ranked
- Flooring contractors in Kingston167 ranked
- Tile installers in Kingston17 ranked
- Drywall contractors in Kingston9 ranked
- Concrete contractors in Kingston77 ranked
- Fence contractors in Kingston72 ranked
- Deck builders in Kingston128 ranked
- Siding contractors in Kingston348 ranked
- Window installers in Kingston290 ranked
- Gutter installers in Kingston89 ranked
- Insulation contractors in Kingston46 ranked
- Solar installers in Kingston102 ranked
- Garage door repair companies in Kingston50 ranked
- Foundation repair companies in Kingston107 ranked
- Tree services in Kingston170 ranked
- Masonry contractors in Kingston195 ranked
- Water damage restoration companies in Kingston266 ranked
- Home builders in Kingston325 ranked
- Demolition contractors in Kingston50 ranked
- All contractors in Kingston