127 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Harwich: South Shore Heating & Cooling, CR Score 66/100; 4.9★ from 1,432 Google reviews; open 24/7.
Best for emergencies (open 24/7): Murphy's Air Conditioning, Heating & Plumbing, posts 24/7 hours; ranked #2 of 127.
Most-reviewed: Murphy's Air Conditioning, Heating & Plumbing, 1,699 Google reviews at 4.8★, the most of 127 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
127 Harwich HVAC contractors are ranked here by CR Score, from ten published factors. 31 are open 24/7, 55 open Saturdays and 40 open Sundays, based on posted hours. The median Google rating is 4.9★ across 127 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | South Shore Heating & Cooling | 66 | 4.9★ (1,432) | South Yarmouth, 7 mi away | 24/7 | Overall |
| 2 | Murphy's Air Conditioning, Heating & Plumbing | 66 | 4.8★ (1,699) | Yarmouth, 7 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Carl F. Riedell & Son, Inc. | 64 | 5.0★ (866) | Barnstable, 16 mi away | 24/7 | — |
| 4 | Thonus North Plumbing, Heating & Air Conditioning | 63 | 4.8★ (80) | Harwich | 24/7 | — |
| 5 | Braga Bros Plumbing, Heating, Air Conditioning & Electrical | 62 | 4.9★ (234) | Hyannis, 11 mi away | 24/7 | — |
| 6 | Cape | 62 | 5.0★ (368) | Marstons Mills, 17 mi away | 24/7 | — |
| 7 | GEM Plumbing & Heating | 62 | 4.6★ (450) | West Yarmouth, 9 mi away | 24/7 | — |
| 8 | Hintze HVAC | 62 | 4.8★ (55) | Harwich | 24/7 | — |
| 9 | Balanced HVAC Inc | 62 | 5.0★ (667) | Marstons Mills, 21 mi away | 24/7 | — |
| 10 | Durfee Plumbing & Heating | 62 | 4.6★ (135) | Barnstable, 4 mi away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,432 Google reviews, listed on Google as “HVAC contractor”.
Based in Yarmouth, 7 mi away
Ranked #2 because of its Google rating and review volume: 4.8★ from 1,699 Google reviews, the most in Harwich.
Based in Barnstable, 16 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 866 Google reviews, listed on Google as “HVAC contractor”.
Based in Harwich
Ranked #4 because of its Google rating and trade focus: 4.8★ from 80 Google reviews, listed on Google as “HVAC contractor”.
Based in Hyannis, 11 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 234 Google reviews, listed on Google as “HVAC contractor”.
Based in Marstons Mills, 17 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 368 Google reviews, listed on Google as “HVAC contractor”.
Based in West Yarmouth, 9 mi away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 450 Google reviews, listed on Google as “HVAC contractor”.
Based in Harwich
Ranked #8 because of its Google rating and trade focus: 4.8★ from 55 Google reviews, listed on Google as “HVAC contractor”.
Based in Marstons Mills, 21 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 667 Google reviews, listed on Google as “HVAC contractor”.
Based in Barnstable, 4 mi away
Ranked #10 because of its Google rating and trade focus: 4.6★ from 135 Google reviews, listed on Google as “HVAC contractor”.
Based in Yarmouth Port, 7 mi away
Ranked #11 because of its Google rating and trade focus: 4.5★ from 315 Google reviews, listed on Google as “HVAC contractor”.
Based in Barnstable, 1 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 696 Google reviews, listed on Google as “HVAC contractor”.
Based in Yarmouth, 8 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 106 Google reviews, listed on Google as “HVAC contractor”.
Based in Barnstable, 7 mi away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 67 Google reviews, listed on Google as “HVAC contractor”.
Based in Yarmouth, 7 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 428 Google reviews, listed on Google as “HVAC contractor”.
Based in South Yarmouth, 7 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 327 Google reviews, listed on Google as “HVAC contractor”.
Based in Eastham, 10 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Heating contractor”.
Based in Barnstable, 5 mi away
Ranked #18 because of its Google rating and trade focus: 4.4★ from 24 Google reviews, listed on Google as “HVAC contractor”.
Based in Marstons Mills, 16 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 78 Google reviews, listed on Google as “Heating contractor”.
Based in Mashpee, 22 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 138 Google reviews, listed on Google as “HVAC contractor”.
Based in Barnstable, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “HVAC contractor”.
Based in Centerville, 14 mi away
Ranked #22 because of its Google rating and review volume: 4.9★ from 184 Google reviews.
Based in Marstons Mills, 22 mi away
Ranked #23 because of its Google rating and trade focus: 4.7★ from 283 Google reviews, listed on Google as “HVAC contractor”.
Based in South Yarmouth, 7 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 135 Google reviews, listed on Google as “HVAC contractor”.
Based in Centerville, 15 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 303 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #40, in CR Score order; each links to its profile. We publish the top 40 of 127 ranked HVAC contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Dave the Plumber | 57 | 4.9★ (130) | 3 mi |
| 27 | Excel Mechanical of Cape Cod | 56 | 4.9★ (37) | 21 mi |
| 30 | High Flow HVAC | 56 | 5.0★ (10) | 15 mi |
| 31 | Best Climate Control | 56 | 5.0★ (8) | 14 mi |
| 38 | All Gas Heating & Cooling, Inc. | 55 | 4.7★ (23) | 21 mi |
| 40 | Flaherty Heating & Air Conditioning Inc. | 55 | 4.4★ (7) | 14 mi |
National price ranges in USD, not adjusted for Harwich. 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 |
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.
We scored 127 Harwich 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 Harwich 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 |