Experts Reviews · Company report
CM Heating logoHow 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%92+6.5Craft & service penalty96−0.4Experts Score= 92Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.92SCORE

CM Heating

Everett, WA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #28Position by Experts Score among all companies we track in this category. of 54 leak detection services · 4.9★ from 7,953 Google reviews

Report card

Percentile vs other leak detection services (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: value and momentum; weakest: reliability.

SatisfactionSatisfaction · 54% of the scoreRecency-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.CM Heating is better than 92% of leak detection services.A
92
ReliabilityReliability · 24% of the scoreHow 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.CM Heating is better than 91% of leak detection services.A
91
Craft & serviceCraft & service · 0% of the scoreGoogle 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.CM Heating is better than 96% of leak detection services.A
96
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.CM Heating is better than 100% of leak detection services.A
100
MomentumMomentum · 0% of the scorePenalises 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.CM Heating is better than 100% of leak detection services.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow 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.CM Heating is better than 92% of leak detection services.A
92

Reviews for your job

Customers hired CM Heating for 8 kinds of job.

CM Heating for HVAC system maintenance

Clear ✕
Jobs reviewedHow many Google reviews are tagged with this job.744
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).4.95
Usually paidThe price range customers picked most often for this job.$200–300
Category typicalWhat the middle half of customers paid for this job across all companies in the category.$39–$264
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 93/100.How Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”:Stars on this job 55%Number of such jobs 25%Overall Experts Score 20%Stars are pulled toward the category average 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.#2 / 10
Said fairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”.98%

All 744 Google reviews tagged “HVAC system maintenance” · showing 20

DebajyotiLocal Guide · 19 reviewsTotal 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. · a month ago★

Hired CM Heating for a routine furnace tune-up. The tech first told me my heat exchanger was cracked and there was rust. After I called their office, he changed it to: no crack, just a little rust — and the rust isn't a problem. But his meter was showing CO, he couldn't say why, and his answer was to replace the…

HVAC system maintenanceHeating system maintenance
Richard3 reviewsTotal 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 months ago★★★★★

CM Heating techs Michael M. and Joseph M. arrived on time. They figured out the best way to reroute the PVC line so the water could drain without a condensation pump. The original setup with the condensation pump created an odd sound whenever the pump stopped running. Michael felt that there was an issue within the…

HVAC system repairHVAC system maintenanceCleaning
C5 reviewsTotal 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 3 months ago★

A plumber is now required to service tankless water-heaters. So the plumber came to clean my tankless, which has never had problems in the 13 years I've had it. Now water is dripping from it and I will have a lot of repair work to do on the floor. Now I need a plumber to fix what the first plumber broke. They used…

Paid $1–200Reasonable priceHVAC system maintenance
Kathy8 reviewsTotal 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 3 months ago★★★★★

CM is awesome!

HVAC system maintenance+ Responsiveness+ Punctuality+ Quality
Danny4 reviewsTotal 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 3 months ago★★★★★

They did the annual maintenance service. All of my questions were answered and the system checked out great. Happy with the service. The guys were as usual very courteous.

HVAC system maintenance
Larry2 reviewsTotal 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 3 months ago★★★

Very nice but didn't change the filter as it was not standard...but never told me they didn't change it. Only after I called did they say it would cost extra to change a non-standard filter so I purchased and they're coming back to change it. Seems odd.

HVAC system maintenance
Leonard6 reviewsTotal 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 3 months ago★★★★★

Already did survey, wanted to let management know Tyler is the Best. Great understanding of the task at hand. quick to point out issues. Easy to work with and a true professional. Job 1 attitude.

Paid $400–600Reasonable priceHeating system maintenanceHVAC system maintenanceInstall thermostat+ Professionalism
Peter10 reviewsTotal 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 3 months ago★★★★★

Anderson was on time, friendly, respectful of my property, and very knowledgeable. He didn’t push any other services or products and left the decision solely in my hands.

Paid $200–400Great priceHVAC system maintenanceA/C system maintenance+ Responsiveness+ Punctuality+ Quality
Max1 reviewTotal 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 3 months ago★★★★★

Very efficient and very fast.

Paid $1–200Great priceHVAC system maintenance
judith10 reviewsTotal 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 3 months ago★★★★★

Always a good experience with this company. Luke did a great job and was very pleasant to have in our home. Another year with CM Heating - this time Doug Jansen. Same excellent service as in prior years - thank you another year - another maintenance appointment for our havac system. And another excellent job by…

HVAC system maintenance+ Responsiveness+ Value
a383377 reviewsTotal 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 3 months ago★★★★★

Been using CM heating for 17yrs. I recommend them. Great people.

Reasonable priceA/C system maintenanceHeating system maintenance+ Responsiveness+ Punctuality+ Quality
David11 reviewsTotal 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 3 months ago★★★★★

I've been with Cm Heading for a long time will not go anywhere else. They have taken care of my family's needs. They make everything right all the time.

Paid $1,000+Reasonable priceA/C system maintenanceHeating system maintenanceHVAC system maintenance+ Value
Ramsay2 reviewsTotal 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. · 3 months ago★★★★★

Professional personnel Charlie is great, he discovered leaking heater and pushed calls for sonner appointment

HVAC system maintenance
CarolLocal Guide · 18 reviewsTotal 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 3 months ago★★★★★

C&M Heating and Cooling just completed another annual check-up of our Heat Pump system. James Penney, a friendly professional, completed a thorough examination, spending more than two hours with detailed attention. We have been very satisfied with C&M since they installed our heat pump in 2022. James Penney is…

HVAC system repairHVAC system maintenance
DanLocal Guide · 32 reviewsTotal 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 3 months ago★★★★★

Very detailed and thorough. And also a nice guy.

HVAC system maintenanceA/C system maintenance
Chris8 reviewsTotal 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 3 months ago★★★★★

Dan was very professional. He kept us informed during the whole process and summarize the service at the end. Very impressed.

Paid $200–400Great priceHVAC system maintenanceA/C preventive maintenanceHeating system maintenance
Matt3 reviewsTotal 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. · 4 months ago★★★★★

Dan our TECH was on time, very knowledgeable with every aspect and very professional. CM heating has always been top notch and we will continue to stay with them for our service and future install.

HVAC system maintenance
KRNGRNLocal Guide · 14 reviewsTotal 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. · 4 months ago★★★★★

Anderson Carter is stellar

Paid $200–400Great priceHVAC system maintenanceA/C system maintenance
Barry1 reviewTotal 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 4 months ago★★★★★

Service was great! Problem solved in minutes.

Paid $600–800Not sureHVAC system maintenanceElectrical panel replacement or upgrading
Theresa4 reviewsTotal 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 4 months ago★★★★★

Emmauel came to our house on time a d ready to work. He was very informed and did a thorough job.

Reasonable priceHVAC system maintenanceService not listed

Show more HVAC system maintenance reviews (724 more) →

Price

$292-32% vs typical leak detection services

Bar = middle half of what customers paid · gold mark = category median.

Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Great price 27%Reasonable 63%Overpriced 2%Not sure 8%

Jobs customers hired them for

JobReviewsCategory typical
Heating system maintenance861$78–$251
HVAC system maintenance733$39–$264
Heating system installation639$1.1k–$2.1k
Heating system repair553$114–$529
Install AC413$1.6k–$2.9k
HVAC system repair354$114–$580
A/C system maintenance343$37–$295
Installation253$578–$2.1k

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