The Best Heat Pump Installation Services in Washington

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1Pacific Heating, Cooling, Plumbing & Electrical★ 4.94 on this job1539 jobs reviewedusually $100–200iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%4.94★Number of such jobs 25%1539Overall Experts Score 20%93Job match= 94Stars 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.94

2Greenwood Heating and Home Services★ 4.95 on this job985 jobs reviewedusually $200–300iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%4.95★Number of such jobs 25%985Overall Experts Score 20%81Job match= 91Stars 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.91

3Ranger Heating & Cooling★ 4.96 on this job312 jobs reviewedusually $200–300iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%4.96★Number of such jobs 25%312Overall Experts Score 20%96Job match= 91Stars 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.91

4Optimal HVAC★ 4.99 on this job112 jobs reviewedusually $100–200iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%4.99★Number of such jobs 25%112Overall Experts Score 20%92Job match= 88Stars 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.88

5Absolute Heating & Cooling★ 4.99 on this job94 jobs reviewedusually $300–400iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%4.99★Number of such jobs 25%94Overall Experts Score 20%97Job match= 88Stars 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.88

6Serenity Air Heating & Air Conditioning★ 4.96 on this job81 jobs reviewedusually $1,000+iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%4.96★Number of such jobs 25%81Overall Experts Score 20%91Job match= 85Stars 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.85

7Unisystems Heating & AC LLC★ 5.00 on this job19 jobs reviewedusually $2,000+iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%5.00★Number of such jobs 25%19Overall Experts Score 20%100Job match= 82Stars 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.82

8Essential Heating and Air★ 4.87 on this job131 jobs reviewedusually $1–100iHow Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%4.87★Number of such jobs 25%131Overall Experts Score 20%83Job match= 78Stars 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.78

Job match = this company’s ★ on reviews Google tagged “HVAC system maintenance” (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 HVAC system maintenance

NNeil2 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 12 hours ago★★★★★

Serenity Air Heating & Air Condit…

Serenity Air is trustworthy and has delivered exceptional service to our home for over a decade now. There is no other place to go for anything furnace or heat pump related.

Great priceHVAC system maintenance

PPatti4 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 10 hours ago★★★★★

Greenwood Heating and Home Servic…

We are new to the Issaquah area and needed to have our HVAC system looked at. We chose Greenwood to come out for a maintenance check. Justin and Jose arrived as scheduled. They were both very knowledgeable, polite and efficient. We are very pleased with their work and have scheduled more services through them.

Reasonable priceHVAC system maintenance

MMarkLocal Guide · 48 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited 21 hours ago★★★★★

Essential Heating and Air

Did a great job. They came on time cleaned up nice guys. Would recommend them to anyone

Paid $2,000+Reasonable priceHVAC system repairHVAC system maintenanceHeating system installation

SSusie11 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited a day ago★★★★★

Pacific Heating, Cooling, Plumbin…

Jessie was professional, friendly and efficient. Great job! Welcome at my house anything me!

HVAC system maintenance

EEric1 reviewiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 days ago★★★★★

Optimal HVAC

Would recommend this company to everyone. Not too many honest business owners, but this two brother company is the best!

Paid $600–800Great priceHVAC system maintenanceHeating system repair

Ttamara5 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited 2 days ago★★★★★

Essential Heating and Air

Excellent service from start to finish! The team was professional, friendly, and knowledgeable. They did a great job, and I really appreciate their hard work. I would highly recommend this HVAC company to anyone looking for reliable, quality service!

Great priceHVAC system repairHVAC system maintenance

Overall ratings

Experts Score 0–100iExperts 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	ScoreiExperts 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.	FactorsiFactor 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.	★iGoogle star rating as shown on Google Maps.	Typical billiMedian bill customers of this company reported in their reviews (needs 3+ priced reviews).
1	Unisystems Heating & AC LLCPacific, WA	A 100iHow 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 97iHow 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 96iHow 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 96iHow 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 93iHow 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 92iHow 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 91iHow 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 87iHow 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 83iHow 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 81iHow 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.

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.

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.