63/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 2,248 Google reviews, the most in Somersworth.
- 4.9★ from 2,248 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 179 Lafayette Rd, North Hampton, NH 03862
Best HVAC Contractors in Somersworth, NH (2026)
168 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Somersworth: Heritage Home Service, CR Score 63/100; 4.9★ from 2,248 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Key Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 168.
- 2
Most-reviewed: Key Heating & Air Conditioning, 692 Google reviews at 4.8★, the most of 168 ranked after Heritage Home Service; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
168 Somersworth HVAC contractors are ranked here by CR Score, from ten published factors. 39 are open 24/7, 58 open Saturdays and 44 open Sundays, based on posted hours. The median Google rating is 4.9★ across 168 rated businesses.
Top 10 HVAC contractors in Somersworth at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Heritage Home Service | 63 | 4.9★ (2,248) | Hampton, 19 mi away | 24/7 | Overall |
| 2 | Key Heating & Air Conditioning | 61 | 4.8★ (692) | Exeter, 19 mi away | 24/7 | Emergencies, Most reviews |
| 3 | HeatPro HVAC | 59 | 4.8★ (138) | Chester, 14 mi away | 24/7 | — |
| 4 | Integrity Comfort Heating And Cooling | 59 | 5.0★ (533) | South Berwick, 8 mi away | — | — |
| 5 | CircumVent LLC | 59 | 5.0★ (40) | Eliot, 11 mi away | 24/7 | — |
| 6 | HomeWiz | 59 | 4.6★ (163) | Biddeford, 14 mi away | 24/7 | — |
| 7 | HomeStyle Heating and Air LLC | 58 | 5.0★ (26) | Barrington, 10 mi away | 24/7 | — |
| 8 | Heritage Home Service | 58 | 4.9★ (45) | Portsmouth, 14 mi away | 24/7 | — |
| 9 | Linscott Electric, LLC | 58 | 5.0★ (243) | South Berwick, 9 mi away | — | — |
| 10 | P Gagnon & Son | 57 | 4.5★ (487) | South Berwick, 3 mi away | — | — |
The 168 best HVAC contractors in Somersworth, 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 Exeter, 19 mi away
61/100CR ScoreRanked #2 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
#3 HeatPro HVAC
Based in Chester, 14 mi away
59/100CR ScoreRanked #3 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 South Berwick, 8 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 533 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 533 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 41 Marion Way, South Berwick, ME 03908
Based in Eliot, 11 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#6 HomeWiz
Based in Biddeford, 14 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 163 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 163 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 694 Post Rd, Wells, ME 04090
Based in Barrington, 10 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 26 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 125 Wildcat Rd, Barrington, NH 03825
Based in Portsmouth, 14 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 45 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 28 Deer St ste 201, Portsmouth, NH 03801
Based in South Berwick, 9 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 243 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 243 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 69 Boyds Corner Rd, South Berwick, ME 03908
#10 P Gagnon & Son
Based in South Berwick, 3 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.5★ from 487 Google reviews, listed on Google as “HVAC contractor”.
- 4.5★ from 487 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 215 Main St, South Berwick, ME 03908
#11 HVAC Plus LLC
Based in Eliot, 10 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 75 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 75 Google reviews
- Hours
- Mon–Fri 6 AM–5 PM · Sat 6 AM–12 PM · Sun closed
Based in Exeter, 18 mi away
57/100CR ScoreRanked #12 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 Rochester, 7 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 9 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 151 Flagg Rd, Rochester, NH 03839
Based in Chester, 14 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Exeter, 18 mi away
57/100CR ScoreRanked #15 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 South Berwick, 3 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat–Sun 9 AM–7 PM
- Address
- 253 Main St, South Berwick, ME 03908
Based in South Berwick, 6 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 81 Google reviews
- Hours
- Mon–Fri 6 AM–4 PM · Sat–Sun closed
Based in Barrington, 13 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Heating contractor”.
- 5.0★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10 Little River Rd, Nottingham, NH 03290
Based in Eliot, 8 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 58 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#20 Cold Creek HVAC
Based in Lebanon, 7 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Exeter, 21 mi away
56/100CR 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 Eliot, 8 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Air conditioning contractor”.
- 5.0★ from 12 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Boyce Rd, Eliot, ME 03903
#23 MCP HVAC
Based in Portsmouth, 17 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 243 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 243 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 3601 Lafayette Rd, Portsmouth, NH 03801
Based in Gilford, 22 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.6★ from 74 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 74 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 69 Main St, Alton, NH 03809
Based in South Berwick, 8 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 34 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat 8 AM–2 PM · Sun closed
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 168 ranked HVAC contractors here; the rest are on their profiles.
Also serving Somersworth
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 |
|---|---|---|
| A P Baker Plumbing & Heating | 5.0★ (2) | 18 mi |
| Affordable Comfort | 4.6★ (11) | 16 mi |
| Alpha Charlie HVAC | 5.0★ (4) | 15 mi |
| Berger HVAC, LLC | 3.0★ (4) | 19 mi |
| Capstone Mechanical | 3.4★ (5) | 16 mi |
| Clem's Plumbing & Heating | 3.7★ (3) | 20 mi |
| Cochecho Plumbing & Heating | 4.7★ (14) | 5 mi |
| Coltella Heating & Cooling | 5.0★ (9) | 22 mi |
| David Glover Plumbing & Heating | 3.0★ (2) | 13 mi |
| Forced Air | 5.0★ (1) | 5 mi |
| Jim Tobey Plumbing & Heating | 3.0★ (2) | 22 mi |
| Krafton plumbing and heating | 5.0★ (2) | 24 mi |
| Lordbrooks plumbing | 3.0★ (2) | 18 mi |
| MANCO Hoods | 5.0★ (1) | 4 mi |
| Mc Nally & Sons Plumbing & Heating | 5.0★ (2) | 22 mi |
| Nadeau Gas & Oil Services, LLC | 5.0★ (2) | 18 mi |
| Piller Heating Co | 5.0★ (4) | 11 mi |
| Plante Oil Burner Services | 3.0★ (2) | 12 mi |
| Sunrise Heating and Cooling | 4.8★ (30) | 24 mi |
| Tremblay & Son HVAC | 3.3★ (12) | 7 mi |
How much do HVAC contractors cost in Somersworth?
National price ranges in USD, not adjusted for Somersworth. 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 Somersworth HVAC contractors
We scored 168 Somersworth 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 Somersworth 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 Somersworth: frequently asked questions
Who is the best HVAC contractor in Somersworth?
By CR Score, the highest-ranked HVAC contractor in Somersworth, NH is Heritage Home Service with a CR Score of 63/100. It has 4.9★ from 2,248 Google reviews. It is open 24/7. Key Heating & Air Conditioning (#2) and HeatPro HVAC (#3) follow. We ranked 168 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Somersworth?
ContractorsRanked ranks 168 HVAC contractors serving Somersworth, NH. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Somersworth are open 24/7?
39 ranked HVAC contractors in Somersworth post 24/7 hours. The highest-ranked are Heritage Home Service (#1), Key Heating & Air Conditioning (#2) and HeatPro HVAC (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Somersworth work on weekends?
58 of 168 ranked HVAC contractors post Saturday hours and 44 post Sunday hours. The highest-ranked open Saturdays are Heritage Home Service (#1), Key Heating & Air Conditioning (#2) and HeatPro HVAC (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Somersworth?
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 Somersworth. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Somersworth HVAC contractors have?
The median Google rating among 168 rated HVAC contractors in Somersworth is 4.9★, with a median of 12 reviews. Heritage Home Service has the most, 2,248 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 Somersworth?
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 Somersworth
- October 2026: CR Scores recalculated for 168 hvac contractors serving Somersworth.
- October 2026: 2 duplicate listings merged.
More HVAC contractors and Somersworth pages
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Other trades in Somersworth
- Roofers in Somersworth280 ranked
- Plumbers in Somersworth103 ranked
- Electricians in Somersworth106 ranked
- General contractors in Somersworth148 ranked
- Painters in Somersworth42 ranked
- Landscapers in Somersworth70 ranked
- Handymen in Somersworth32 ranked
- Kitchen remodelers in Somersworth66 ranked
- Bathroom remodelers in Somersworth58 ranked
- Flooring contractors in Somersworth55 ranked
- Tile installers in Somersworth9 ranked
- Concrete contractors in Somersworth26 ranked
- Fence contractors in Somersworth14 ranked
- Deck builders in Somersworth35 ranked
- Siding contractors in Somersworth150 ranked
- Window installers in Somersworth120 ranked
- Gutter installers in Somersworth30 ranked
- Insulation contractors in Somersworth13 ranked
- Solar installers in Somersworth41 ranked
- Garage door repair companies in Somersworth22 ranked
- Foundation repair companies in Somersworth38 ranked
- Tree services in Somersworth73 ranked
- Masonry contractors in Somersworth55 ranked
- Water damage restoration companies in Somersworth101 ranked
- Home builders in Somersworth148 ranked
- Demolition contractors in Somersworth25 ranked
- All contractors in Somersworth