98 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Sudden Valley: Marr's Heating, AC, Plumbing & Electrical, CR Score 66/100; 4.9★ from 1,749 Google reviews; open 24/7.
Best for emergencies (open 24/7): Clean Air Heating & Cooling, posts 24/7 hours; ranked #2 of 98.
Most-reviewed: CPI Plumbing & Heating, 2,955 Google reviews at 4.8★, the most of 98 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
98 Sudden Valley HVAC contractors are ranked here by CR Score, from ten published factors. 41 are open 24/7, 62 open Saturdays and 49 open Sundays, based on posted hours. The median Google rating is 4.8★ across 98 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Marr's Heating, AC, Plumbing & Electrical | 66 | 4.9★ (1,749) | Bellingham, 6 mi away | 24/7 | Overall |
| 2 | Clean Air Heating & Cooling | 64 | 4.9★ (757) | Bellingham, 6 mi away | 24/7 | Emergencies |
| 3 | Barron Heating AC Electrical & Plumbing | 64 | 4.8★ (2,314) | Ferndale, 12 mi away | 24/7 | — |
| 4 | West Mechanical Heating Cooling Electrical, Plumbing | 63 | 4.9★ (1,264) | Bellingham, 9 mi away | Sat · Sun | — |
| 5 | CM Heating | 62 | 5.0★ (1,208) | Mount Vernon, 20 mi away | 24/7 | — |
| 6 | Andgar Home Comfort | 62 | 4.9★ (1,038) | Ferndale, 17 mi away | 24/7 | — |
| 7 | CPI Plumbing, Heating & Cooling | 62 | 4.9★ (219) | Bellingham, 7 mi away | 24/7 | — |
| 8 | Ronk Brothers Heating, Cooling, and Electrical | 62 | 4.9★ (841) | Sedro-Woolley, 16 mi away | 24/7 | — |
| 9 | Lynden Sheet Metal Inc. | 62 | 4.9★ (834) | Lynden, 17 mi away | 24/7 | — |
| 10 | Gary's Plumbing & Heating | 62 | 4.6★ (855) | Bellingham, 11 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 in Sudden Valley
Based in Bellingham, 6 mi away
Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,749 Google reviews, listed on Google as “HVAC contractor”.
Based in Bellingham, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 757 Google reviews, listed on Google as “HVAC contractor”.
Based in Ferndale, 12 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 2,314 Google reviews, listed on Google as “HVAC contractor”.
Based in Bellingham, 9 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,264 Google reviews, listed on Google as “HVAC contractor”.
Based in Mount Vernon, 20 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 1,208 Google reviews, listed on Google as “HVAC contractor”.
Based in Ferndale, 17 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 1,038 Google reviews, listed on Google as “HVAC contractor”.
Based in Bellingham, 7 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 219 Google reviews, listed on Google as “HVAC contractor”.
Based in Sedro-Woolley, 16 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 841 Google reviews, listed on Google as “HVAC contractor”.
Based in Lynden, 17 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 834 Google reviews, listed on Google as “Heating contractor”.
Based in Bellingham, 11 mi away
Ranked #10 because of its Google rating and trade focus: 4.6★ from 855 Google reviews, listed on Google as “HVAC contractor”.
Based in Mount Vernon, 23 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 914 Google reviews, listed on Google as “Heating contractor”.
Based in Abbotsford, 23 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 1,627 Google reviews, listed on Google as “HVAC contractor”.
Based in Anacortes, 19 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 99 Google reviews, listed on Google as “HVAC contractor”.
Based in Mount Vernon, 22 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 2,955 Google reviews, the most in Sudden Valley.
Based in Burlington, 18 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 117 Google reviews, listed on Google as “HVAC contractor”.
Based in Anacortes, 20 mi away
Ranked #16 because of its Google rating and trade focus: 4.6★ from 264 Google reviews, listed on Google as “HVAC contractor”.
Based in Blaine, 8 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based in Bellingham, 6 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 252 Google reviews, listed on Google as “HVAC contractor”.
Based in Mount Vernon, 20 mi away
Ranked #19 because of its Google rating and trade focus: 4.5★ from 198 Google reviews, listed on Google as “HVAC contractor”.
Based in Bellingham, 6 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “HVAC contractor”.
Based in Ferndale, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 42 Google reviews, listed on Google as “Heating contractor”.
Based in Bellingham, 6 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 13 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Bellingham, 6 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “HVAC contractor”.
Based in Birch Bay, 8 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “HVAC contractor”.
Based in Blaine, 22 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “HVAC contractor”.
#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 98 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 |
|---|---|---|
| Action Plumbing & Heating | 5.0★ (1) | 20 mi |
| AM PM Plumbing & Heating | 5.0★ (4) | 22 mi |
| Apex Radiant Heating | 5.0★ (2) | 21 mi |
| Bellingham Furnace & Air Conditioning Repair | 5.0★ (2) | 9 mi |
| Bellingham Plumbing & Heating Inc. | 6 mi | |
| Chhokar plumbing&heating ltd | 5.0★ (5) | 24 mi |
| Coast Mountain Refrigeration and Gas | 5.0★ (2) | 23 mi |
| Cobalt Refrigeration | 5.0★ (1) | 20 mi |
| FurnaceUSA Heating & Air Conditioning | 6 mi | |
| HouseCo Construction | In Sudden Valley | |
| Martin Plumbing & Heating Inc | 4.0★ (1) | 12 mi |
| Mt Baker Mechanical Contractor | 5.0★ (1) | 12 mi |
| NORTHWEST HEATING SERVICES LLC | 4.0★ (2) | 17 mi |
| Peak Heating & Cooling | 5.0★ (2) | 18 mi |
| Pepperworth Plumbing & Heating | 4.0★ (4) | 10 mi |
| Ray Heating & AC, Inc. | 6 mi | |
| Saxon Service Inc. | 4.7★ (20) | 22 mi |
| Upper Valley HVAC Ltd. | 5.0★ (3) | 22 mi |
| VanDiermen and Sons Heating and Air Conditioning | 3.5★ (13) | 25 mi |
| Washington Air Conditioning Systems | 5.0★ (1) | 20 mi |
National price ranges in USD, not adjusted for Sudden Valley. 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 |
Washington's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
We scored 98 Sudden Valley 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 23, 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 Sudden Valley 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 |