The Best Heat Pump Installation Services in Washington
We graded 10 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 51,963 Google reviews of 50 top-rated heat pump installation services nationwide; 10 of them in Washington. Updated November 1, 2026.
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Best heat pump installation services in Washington for thermostat repair
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Pacific Heating, Cooling, Plumbing & ElectricalHow Job match is calculatedBuilt only from reviews Google tagged “Thermostat repair”:Stars on this job 55%4.88★Number of such jobs 25%66Overall Experts Score 20%93Job match= 89Stars are pulled toward the category average (4.87★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.89
Ranger Heating & CoolingHow Job match is calculatedBuilt only from reviews Google tagged “Thermostat repair”:Stars on this job 55%4.94★Number of such jobs 25%16Overall Experts Score 20%96Job match= 84Stars are pulled toward the category average (4.87★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.84
Optimal HVACHow Job match is calculatedBuilt only from reviews Google tagged “Thermostat repair”:Stars on this job 55%5.00★Number of such jobs 25%3Overall Experts Score 20%92Job match= 74Stars are pulled toward the category average (4.87★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.74
Greenwood Heating and Home ServicesHow Job match is calculatedBuilt only from reviews Google tagged “Thermostat repair”:Stars on this job 55%4.38★Number of such jobs 25%8Overall Experts Score 20%81Job match= 55Stars are pulled toward the category average (4.87★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.55Job match = this company’s ★ on reviews Google tagged “Thermostat repair” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.
What customers said about thermostat repair
Pacific Heating, Cooling, Plumbin…We are Pacific and Heating customers for life. Impeccable service. Professional team. Flawless install. Incredible attention to detail. Fantastic value. Could not be more pleased.
Ranger Heating & CoolingMy technician Banja was on time and knew exactly what to do. He was very thorough and explained everything he did to service my system. What I loved most about Banja was how personable he was. I never felt rushed about asking questions after the work was done. He was patient and knowledgeable. Ranger is lucky…
Greenwood Heating and Home Servic…Blake was squared away and very knowledgeable. Greenwood is the best HVAC service I have had at any of my properties. Definitely choose Greenwood and sign up for the membership. What a great business model 👏 👌 😍
Pacific Heating, Cooling, Plumbin…We just got our new heat pump and air handler replaced. Everyone we dealt with was extremely professional and personable. Today our installers Ryan and Malachi went above and beyond to do everything perfectly and keep us informed on any details. All were great to deal with from phone dispatchers, sales, and techs. Highly recommend.
Pacific Heating, Cooling, Plumbin…Top notch work and exceptional customer service. Each worker understands the value of customer service...all very patient in explaining each step and a thorough walk through of the new system to be sure it is used correctly. The service I agreed to was completed, no surprises come installation day. Workers were…
Ranger Heating & CoolingInitial frustration turn out great. Contacted company on Saturday for 9:00 A.M Sunday appointment. Received confirmation showing a different time for 6:00 P.M. Unable to reach until Sunday, but it works out. Tech came out on Sunday morning on time. Respectful, knowledgeable, found issue with thermostat and we're back in business.
Overall ratings
Experts Score 0–100Experts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of heat pump installation services).
| # | Company | ScoreExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. | FactorsFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20. | ★Google star rating as shown on Google Maps. | Typical billMedian bill customers of this company reported in their reviews (needs 3+ priced reviews). |
|---|---|---|---|---|---|
| 1 |  Unisystems Heating & AC LLCPacific, WA | A 100How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%100+58.7Reliability 26%99+25.8Value 15%100+15.2Experts Score= 100Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 5.00 | $2.8k |
| 2 |  Absolute Heating & CoolingPacific, WA | A 97How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%97+52.9Reliability 24%96+23.3Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty94−0.6Experts Score= 97Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.94 | $432 |
| 3 |  Greener Cleaner Heating & AirPacific, WA | A 96How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%97+52.9Reliability 24%97+23.5Value 14%100+14.1Replies to reviews 7%78+5.5Experts Score= 96Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAB | 4.98 | $1.2k |
| 4 | Ranger Heating & CoolingPacific, WA | A 96How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%96+52.4Reliability 24%95+23Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty97−0.3Experts Score= 96Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.93 | $648 |
| 5 | Pacific Heating, Cooling, Plumbing & ElectricalPacific, WA | A 93How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%92+50.2Reliability 24%91+22.1Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty94−0.6Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.90 | $192 |
| 6 | Optimal HVACPacific, WA | A 92How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%97+52.9Reliability 24%96+23.3Value 14%100+14.1Replies to reviews 7%38+2.7Craft & service penalty93−0.7Experts Score= 92Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAD | 4.97 | $221 |
| 7 |  Serenity Air Heating & Air ConditioningPacific, WA | A 91How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%92+50.2Reliability 24%89+21.6Value 14%100+14.1Replies to reviews 7%73+5.2Craft & service penalty96−0.4Experts Score= 91Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAB | 4.92 | $498 |
| 8 |  Tapps Electric, Heating & AirPacific, WA | A 87How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%91+49.6Reliability 24%91+22.1Value 14%100+14.1Replies to reviews 7%38+2.7Craft & service penalty85−1.5Experts Score= 87Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAD | 4.90 | $585 |
| 9 |  Essential Heating and AirPacific, WA | A 83How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%84+45.8Reliability 24%82+19.9Value 14%100+14.1Replies to reviews 7%49+3.5Craft & service penalty99−0.1Experts Score= 83Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.85 | $1.6k |
| 10 | Greenwood Heating and Home ServicesPacific, WA | A 81How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%88+48Reliability 24%83+20.1Value 14%78+11Replies to reviews 7%43+3Craft & service penalty89−1.1Experts Score= 81Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAABAC | 4.85 | $654 |
What jobs cost
What customers paid, from the price Google asks reviewers to report.
| Job | Low25th percentile: 1 in 4 customers paid less than this. | TypicalMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range). | High75th percentile: 1 in 4 customers paid more than this. | FairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”. |
|---|---|---|---|---|
| HVAC system maintenance | $114 | $248 | $453 | 98% |
| HVAC system repair | $209 | $454 | $1.2k | 96% |
| A/C system maintenance | $78 | $198 | $351 | 97% |
| Heating system maintenance | $78 | $166 | $293 | 99% |
| Heating system installation | $1.4k | $1.9k | $2.4k | 99% |
| Install AC | $1.6k | $2.4k | $3.7k | 99% |
| A/C system repair | $227 | $383 | $611 | 97% |
| Heating system repair | $188 | $379 | $867 | 97% |
| Install thermostat | $275 | $423 | $721 | 99% |
| Installation | $1.4k | $2.1k | $2.8k | 96% |
| Repair HVAC | $57 | $283 | $738 | 99% |
| HVAC duct & vent cleaning | $538 | $699 | $942 | 98% |
Heat Pump Installation Services in Washington at a glance
How the 10 heat pump installation services we rated in Washington compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A10100%
- Grade B00%
- Grade C00%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up880%
- 4.80–4.89★220%
- 4.60–4.79★00%
- Below 4.60★00%
What customers praise
Share of Google review highlights.
- Quality9,41220%
- Professionalism11,44124%
- Responsiveness9,81021%
- Punctuality9,63620%
- Value6,79514%
Was the price fair?
All price verdicts left with reviews.
- Great price2,78428%
- Reasonable6,04461%
- Overpriced3053%
- Not sure7808%
Price verdicts by year
Share calling it great / reasonable / overpriced.
How we grade
Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.
Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.
Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.
Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.
Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.
Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.