65/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 7,956 Google reviews, the most in Hampstead.
- 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 Hampstead, NH (2026)
634 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Hampstead: Heritage Home Service, CR Score 65/100; 4.8★ from 7,956 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Northeast Heating & Cooling, posts 24/7 hours; ranked #2 of 634.
- 36
Most-reviewed: Joyce Cooling & Heating Inc., 5,079 Google reviews at 4.9★, the most of 634 ranked after Heritage Home Service; ranked #36.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
634 Hampstead HVAC contractors are ranked here by CR Score, from ten published factors. 184 are open 24/7, 307 open Saturdays and 223 open Sundays, based on posted hours. The median Google rating is 4.9★ across 634 rated businesses.
Top 10 HVAC contractors in Hampstead at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Heritage Home Service | 65 | 4.8★ (7,956) | Auburn, 11 mi away | 24/7 | Overall |
| 2 | Northeast Heating & Cooling | 63 | 5.0★ (449) | Haverhill, 9 mi away | 24/7 | Emergencies |
| 3 | High Ground Service Pros - Plumbers Electricians & HVAC Technicians | 62 | 4.9★ (2,303) | Manchester, 17 mi away | 24/7 | — |
| 4 | Patriot Oil Burner Service | 62 | 5.0★ (263) | Chester, 8 mi away | 24/7 | — |
| 5 | 128 Plumbing, Heating, Cooling & Electric | 62 | 5.0★ (562) | North Andover, 14 mi away | 24/7 | — |
| 6 | Heritage Home Service | 62 | 4.8★ (3,352) | Wilmington, 19 mi away | 24/7 | — |
| 7 | Heritage Home Service | 61 | 4.9★ (2,248) | Hampton, 20 mi away | 24/7 | — |
| 8 | Southern New Hampshire Plumbing and Heating | 61 | 4.8★ (433) | Londonderry, 9 mi away | 24/7 | — |
| 9 | MillTown Plumbing, Heating, Cooling and Electrical | 61 | 4.8★ (2,927) | Chelmsford, 20 mi away | 24/7 | — |
| 10 | MVP Home Services | 61 | 4.7★ (545) | Haverhill, 9 mi away | 24/7 | — |
The 634 best HVAC contractors in Hampstead, 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 Haverhill, 9 mi away
63/100CR ScoreRanked #2 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, 17 mi away
62/100CR ScoreRanked #3 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, 8 mi away
62/100CR ScoreRanked #4 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
Based in North Andover, 14 mi away
62/100CR ScoreRanked #5 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, 19 mi away
62/100CR ScoreRanked #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
Based in Hampton, 20 mi away
61/100CR ScoreRanked #7 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 Londonderry, 9 mi away
61/100CR ScoreRanked #8 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
Based in Chelmsford, 20 mi away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 2,927 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 2,927 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 131 Stedman St #6, Chelmsford, MA 01824
Based in Haverhill, 9 mi away
61/100CR ScoreRanked #10 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 Exeter, 13 mi away
61/100CR ScoreRanked #11 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 Nashua, 16 mi away
61/100CR ScoreRanked #12 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 Billerica, 18 mi away
61/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 1,626 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.8★ from 1,626 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 116 Pawtucket Blvd, Tyngsborough, MA 01879
Based in Woburn, 25 mi away
61/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 3,169 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 3,169 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9 N Maple St, Woburn, MA 01801
Based in Danvers, 25 mi away
61/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 4,220 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 4,220 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 33 Cherry Hill Dr, Danvers, MA 01923
Based in Derry, 7 mi away
61/100CR ScoreRanked #16 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 Methuen, 11 mi away
60/100CR ScoreRanked #17 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 Andover, 19 mi away
60/100CR ScoreRanked #18 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 Manchester, 16 mi away
60/100CR ScoreRanked #19 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 Bedford, 16 mi away
60/100CR ScoreRanked #20 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 Billerica, 20 mi away
60/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 476 Google reviews, listed on Google as “Heating contractor”.
- 5.0★ from 476 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 98 Billerica Ave B, North Billerica, MA 01862
#22 NextGen Aire
Based in Amesbury, 12 mi away
60/100CR ScoreRanked #22 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 Sandown, 6 mi away
60/100CR ScoreRanked #23 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 Chelmsford, 20 mi away
60/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 443 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 443 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 80 Brick Kiln Rd, Chelmsford, MA 01824
Based in Merrimac, 9 mi away
60/100CR ScoreRanked #25 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
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 634 ranked HVAC contractors here; the rest are on their profiles.
Also serving Hampstead
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 |
|---|---|---|
| All Purpose Mechanical | 4.5★ (2) | 6 mi |
| Atkinson Electric LLC | 5.0★ (14) | In Hampstead |
| Bolla Electrical & HVAC Services | 5.0★ (2) | 8 mi |
| Buonagurio HVAC | 5.0★ (2) | 9 mi |
| Climate Design Systems, LLC | 4.3★ (89) | 10 mi |
| Daniel Doore Plumbing& Heating | 3.0★ (2) | 13 mi |
| Diamond Mechanical LLC | 4.5★ (83) | 11 mi |
| Eastern Temperature Control HVAC, LLC | 5.0★ (2) | 9 mi |
| Harley Weymouth Plumbing & Heating | 5.0★ (2) | 12 mi |
| Jim Tobey Plumbing & Heating | 3.0★ (2) | 11 mi |
| Krafton plumbing and heating | 5.0★ (2) | 8 mi |
| LHR Plumbing, Heating & AC Repair | 4.9★ (128) | 18 mi |
| Merrimack Valley Plumbing | 3.0★ (2) | 10 mi |
| Mikey Pipes Plumbing & Heating LLC | 5.0★ (2) | 11 mi |
| Nadeau Gas & Oil Services, LLC | 5.0★ (2) | 14 mi |
| Patriot Heating & Cooling, LLC | 4.8★ (174) | 14 mi |
| Revise Heating and Cooling | 5.0★ (2) | 9 mi |
| Spencer Deal Heating Services LLC | 4.0★ (2) | 3 mi |
| Suspended Profile for Non Payment of Services - JP HVAC Services | 3.0★ (2) | 10 mi |
| Valerio Air Systems Inc | 3.0★ (2) | 11 mi |
How much do HVAC contractors cost in Hampstead?
National price ranges in USD, not adjusted for Hampstead. 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 Hampstead HVAC contractors
We scored 634 Hampstead 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 Hampstead 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 Hampstead: frequently asked questions
Who is the best HVAC contractor in Hampstead?
By CR Score, the highest-ranked HVAC contractor in Hampstead, NH is Heritage Home Service with a CR Score of 65/100. It has 4.8★ from 7,956 Google reviews. It is open 24/7. Northeast Heating & Cooling (#2) and High Ground Service Pros - Plumbers Electricians & HVAC Technicians (#3) follow. We ranked 634 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Hampstead?
ContractorsRanked ranks 634 HVAC contractors serving Hampstead, NH. 1 of them is based in Hampstead; 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 Hampstead are open 24/7?
184 ranked HVAC contractors in Hampstead post 24/7 hours. The highest-ranked are Heritage Home Service (#1), Northeast Heating & Cooling (#2) and High Ground Service Pros - Plumbers Electricians & HVAC Technicians (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Hampstead work on weekends?
307 of 634 ranked HVAC contractors post Saturday hours and 223 post Sunday hours. The highest-ranked open Saturdays are Heritage Home Service (#1), Northeast Heating & Cooling (#2) and High Ground Service Pros - Plumbers Electricians & HVAC Technicians (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Hampstead?
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 Hampstead. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Hampstead HVAC contractors have?
The median Google rating among 634 rated HVAC contractors in Hampstead is 4.9★, with a median of 18 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 Hampstead?
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 Hampstead
- October 2026: CR Scores recalculated for 634 hvac contractors serving Hampstead.
- October 2026: 9 duplicate listings merged.
More HVAC contractors and Hampstead pages
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Other trades in Hampstead
- Roofers in Hampstead827 ranked
- Plumbers in Hampstead432 ranked
- Electricians in Hampstead404 ranked
- General contractors in Hampstead606 ranked
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- Landscapers in Hampstead193 ranked
- Handymen in Hampstead68 ranked
- Kitchen remodelers in Hampstead324 ranked
- Bathroom remodelers in Hampstead309 ranked
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- Drywall contractors in Hampstead11 ranked
- Concrete contractors in Hampstead106 ranked
- Fence contractors in Hampstead99 ranked
- Deck builders in Hampstead173 ranked
- Siding contractors in Hampstead401 ranked
- Window installers in Hampstead335 ranked
- Gutter installers in Hampstead117 ranked
- Insulation contractors in Hampstead62 ranked
- Solar installers in Hampstead120 ranked
- Garage door repair companies in Hampstead56 ranked
- Foundation repair companies in Hampstead136 ranked
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- All contractors in Hampstead