1,153 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Holliston: Nicholson Plumbing, Electrical, Heating, and Air Conditioning, CR Score 94/100; 4.8★ from 2,950 Google reviews; open 24/7.
Best for emergencies (open 24/7): Obie Comfort Solutions, posts 24/7 hours; ranked #2 of 1,153.
Most-reviewed: GEM Plumbing and Heating, 6,353 Google reviews at 4.6★, the most of 1,153 ranked; ranked #20.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,153 Holliston HVAC contractors are ranked here by CR Score, from 8 published factors. 362 are open 24/7, 649 open Saturdays and 482 open Sundays, based on posted hours. The median Google rating is 4.8★ across 1,153 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Nicholson Plumbing, Electrical, Heating, and Air Conditioning | 94 | 4.8★ (2,950) | Holliston | 24/7 | Overall |
| 2 | Obie Comfort Solutions | 92 | 4.8★ (1,322) | Framingham, 5 mi away | 24/7 | Emergencies |
| 3 | Notturno Home Services | 91 | 4.9★ (1,586) | Blackstone, 12 mi away | 24/7 | — |
| 4 | G&C Plumbing & Heating | 91 | 4.9★ (990) | Franklin, 9 mi away | 24/7 | — |
| 5 | Rodenhiser Home Services | 91 | 4.8★ (2,938) | Holliston | Sat · Sun | — |
| 6 | All-Temp Systems Mechanical, LLC | 91 | 4.9★ (533) | Milford, 6 mi away | 24/7 | — |
| 7 | Landry Mechanical Inc Plumbing HVAC & Electric | 91 | 4.8★ (581) | Framingham, 5 mi away | 24/7 | — |
| 8 | CPS Heating & Cooling | 90 | 4.9★ (781) | Grafton, 11 mi away | 24/7 | — |
| 9 | Accurate Baker Elman | 90 | 4.9★ (508) | Franklin, 9 mi away | 24/7 | — |
| 10 | Papalia Home Services | 90 | 4.9★ (3,978) | Acton, 22 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 in Holliston
Based in Holliston
Ranked #1 because of its Google rating and availability: 4.8★ from 2,950 Google reviews, open 24/7.
Based in Framingham, 5 mi away
Ranked #2 because of its Google rating and availability: 4.8★ from 1,322 Google reviews, open 24/7.
Based in Blackstone, 12 mi away
Ranked #3 because of its Google rating and availability: 4.9★ from 1,586 Google reviews, open 24/7.
Based in Franklin, 9 mi away
Ranked #4 because of its Google rating and availability: 4.9★ from 990 Google reviews, open 24/7.
Based in Holliston
Ranked #5 because of its Google rating and trade focus: 4.8★ from 2,938 Google reviews, listed on Google as “HVAC contractor”.
Based in Milford, 6 mi away
Ranked #6 because of its Google rating and availability: 4.9★ from 533 Google reviews, open 24/7.
Based in Framingham, 5 mi away
Ranked #7 because of its Google rating and availability: 4.8★ from 581 Google reviews, open 24/7.
Based in Grafton, 11 mi away
Ranked #8 because of its Google rating and availability: 4.9★ from 781 Google reviews, open 24/7.
Based in Franklin, 9 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 508 Google reviews, open 24/7.
Based in Acton, 22 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 3,978 Google reviews, open 24/7.
Based in Auburn, 20 mi away
Ranked #11 because of its Google rating and availability: 4.9★ from 2,563 Google reviews, open 24/7.
Based in Millbury, 17 mi away
Ranked #12 because of its Google rating and availability: 4.8★ from 3,030 Google reviews, open 24/7.
Based in Northborough, 14 mi away
Ranked #13 because of its Google rating and availability: 4.9★ from 1,017 Google reviews, open 24/7.
Based in Shrewsbury, 15 mi away
Ranked #14 because of its Google rating and availability: 5.0★ from 586 Google reviews, open 24/7.
Based in Watertown, 18 mi away
Ranked #15 because of its Google rating and availability: 4.8★ from 2,862 Google reviews, open 24/7.
Based in Natick, 7 mi away
Ranked #16 because of its Google rating and availability: 4.9★ from 234 Google reviews, open 24/7.
Based in Watertown, 16 mi away
Ranked #17 because of its Google rating and availability: 4.8★ from 1,625 Google reviews, open 24/7.
Based in Holliston
Ranked #18 because of its Google rating and availability: 4.8★ from 86 Google reviews, open 24/7.
Based in Needham, 13 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 259 Google reviews, open 24/7.
Based in Lincoln, 20 mi away
Ranked #20 because of its Google rating and review volume: 4.6★ from 6,353 Google reviews, the most Google reviews on this list (6,353).
Based in Newton, 14 mi away
Ranked #21 because of its Google rating and availability: 4.9★ from 389 Google reviews, open 24/7.
Based in Attleboro, 15 mi away
Ranked #22 because of its Google rating and availability: 4.9★ from 400 Google reviews, open 24/7.
Based in Framingham, 5 mi away
Ranked #23 because of its Google rating and availability: 4.8★ from 107 Google reviews, open 24/7.
Based in Douglas, 8 mi away
Ranked #24 because of its Google rating and availability: 4.9★ from 107 Google reviews, open 24/7.
Based in Quincy, 21 mi away
Ranked #25 because of its Google rating and availability: 4.8★ from 1,567 Google reviews, open 24/7.
#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 1,153 ranked HVAC contractors here; the rest are on their profiles.
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 |
|---|---|---|
| Affinity Exterior Corp | 5.0★ (2) | In Holliston |
| Air Temperature Systems Inc | 5.0★ (2) | 12 mi |
| Complete Heating & Cooling Tom Fricker | 4.8★ (529) | 7 mi |
| Daikin Applied | 3.0★ (2) | 11 mi |
| Delta HVAC Services Inc | 3.0★ (2) | 12 mi |
| Dempsey Energy | 4.5★ (859) | 16 mi |
| Full Spectrum Services | 4.8★ (112) | 7 mi |
| Harmony Heating & Air Conditioning | 4.8★ (110) | 12 mi |
| Iadarola Plumbing and Heating LLC | In Holliston | |
| Joseph Kosh Plumbing & Heating | 5.0★ (2) | 4 mi |
| Kushner Plumbing & Heating | 5.0★ (2) | 8 mi |
| Mac Donald Plumbing & Heating | 5.0★ (2) | 6 mi |
| MILLER PLUMBING, HEATING & COOLING, LLC | 5.0★ (2) | 9 mi |
| Obie Comfort Solutions | 5.0★ (2) | 10 mi |
| Park Plumbing | 5.0★ (2) | 8 mi |
| Performance Plumbing And Heating, Inc. | 3.0★ (2) | 3 mi |
| Reliable Pipes Plumbing & Heating | 3.0★ (2) | In Holliston |
| Spectrum Heating And Cooling, Inc. | 5.0★ (2) | 11 mi |
| Speed-up Services inc | 5.0★ (2) | 6 mi |
| Westwood Plumbing & Heating | 5.0★ (2) | 6 mi |
National price ranges in USD, not adjusted for Holliston. 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 1,153 Holliston HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Holliston data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |