How 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.92SCORECM 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.
Reviews for your job
Customers hired CM Heating for 8 kinds of job.
CM Heating for a/c system maintenance
Clear ✕All 348 Google reviews tagged “A/C system maintenance” · showing 40
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.
Been using CM heating for 17yrs. I recommend them. Great people.
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.
Very detailed and thorough. And also a nice guy.
Our tech, Anderson Carter was wonderful. He explained how well our system was working and how we can improve the life of the system. He was extremely helpful, personable, kind. Would love to see him stay with the company and be our tech with any issues we might have in the future.
Anderson Carter is stellar
Ray was a pleasure to deal with. He did a very thorough job and gave us some new information about our system. We've always been happy in our dealings with CM Heating.
Fast efficient and knowledgeable
Professional Michael Sullivan awesome Tech/ Plumber. Install tank less water heater
Anderson was great!
Alexander was very knowledgeable and helpful. Everyone we’ve worked with at CM has had such great customer service and they do quality work that we trust.
Great experiance across the board from start to finish. They have the nicest technicians and are always courteous, on time and respectful!
CM installed my heat pump a few years ago and have taken great care of me ever since. Had an emergency and you can call day or night and they send someone right out. Love this company and the crew is always so friendly and professional!
worker was thorough and friendly.
You will not find a more professional HVAC/Plumbing/Electrical company anywhere in the Seattle area! These technicians are very highly trained and the services they provide are consistently excellent. We've used them for years. My company has also utilized their services for many years. They are not the least…
Knowledgeable and experienced
great service, qualified technicians and prompt services. Saul is very knowledgeable and honest.
Nikko was awesome! Professional, thorough, knowledgeable and efficient !
We used CM Heating to service our furnace and air conditioner this year. As usual, they were prompt, very thorough and nice. I told them my concerns and they checked everything out!. Our house is nice and cool and we couldn’t be happier!!
Very friendly, and patiently explained everything to me. Quick was able to get in and Out in just a couple of hours and kept me updated on his progress the whole time. C&M is a great company I can’t say enough good stuff about them, and they hire just top notch people to represent their company. I put the call in…
Simply outstanding, professional service by Nikko Cossins who is an extremely well trained technician who performed a masterful maintenance service. I would recommend this company to anyone needing HVAC service. Thank you for another outstanding job.
Carson from CM Heating was professional and knowledgeable. He was able to help us with our furnace and provide us with great service
Adam was very professional, prompt, and knowledgeable.
Hagan was a professional. We had a/c issues and he addressed them and reassured us he could resolve the issue. He was super friendly and helpful. He made a possibly stressful experience much better for us. I highly recommend
Adam was super! Very prompt with his notifications and on time! His knowledge was fantastic and he spent the time required to resolve the issue and provide with the background of the issue and how he resolved it. Adam is always welcome to come back. I give him too marks! 5 out of 5! Antonio Carbajal was a fantastic…
Caleb was friendly and professional in the maintenance of my air conditioner. CM Heating communicated with me regularly to make sure I remembered my appointment and who would be coming to my home.
Dan came out to my house to check on my AC unit that wasn't working. No cold air on a 90 degree day. He came that same day, assessed the issue, and let me know my options going forward. He was very professional and very nice to deal with. Great job, Dan!
This gentleman was thorough & fast. We appreciate his help and highly recommend him.
6/10/2026 - Graham did a great job servicing our mini split and was very professional. 6/11/2026 - Josh found a hidden electrical panel in our garage last week. The power went out and he couldn't figure out where the wires were coming from. The panel he found was a Federal Pacific panel and was recalled. He cleaned…
Edgar was very pleasant and professional. I had several concerns and requests which he assured me he could take care of. One company said I needed to replace my electrical panel if I added a heat pump. Edgar shared how I could save money by not replacing it. I appreciate his honesty!
Chase Bolen was very knowledgeable, personable, and honest. He took the time to explain things clearly, answered questions honestly, and made my experience a positive one. He's the kind of technician who makes you want to stay loyal to a company. Thank you sir!
Excellent service! Technician was on time, polite and efficient Such a nice, considerate guy!
A++ for Adam. I learned about temperature control in the house for my AC and Heating. He is professional, personable, and extremely knowledgeable about all AC and heating. CM Heating is fortunate to have such a great employee. Give that man a raise! But if you have to raise my monthly rate to do so, I’d like to rethink that. Lol. :-)
Annual maintenance very thorough. Used many instruments to check all details. Very satisfied with the routine maintenance visit.
Friendly service, tech helpful and professional, great suggestions, very efficient and kept me informed throughout the service
Working with CM Heating has been incredibly easy! We were giving a lot of great information to help us make our AC decisions. I appreciate that the company gives me information about who is showing up at my house and that they text when they're on their way to your house.
Technician was knowledgeable, efficient and personable. Great representative of your company.
Graham and Carter were polite and friendly. They did a complete test of our thermostat, furnace and heat pump. Highly recommend!
Edgar was great to work with, very knowledgeable and professional! I’ve been going with CM heating for everything from our fireplace maintenance to electrical and getting our EV charger installed now, I have always had a great experience with them!
He did a great job at explaining everything and was very professional. Very nice and friendly.
Price
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.
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| Heating system maintenance | 861 | $78–$251 |
| HVAC system maintenance | 733 | $39–$264 |
| Heating system installation | 639 | $1.1k–$2.1k |
| Heating system repair | 553 | $114–$529 |
| Install AC | 413 | $1.6k–$2.9k |
| HVAC system repair | 354 | $114–$580 |
| A/C system maintenance | 343 | $37–$295 |
| Installation | 253 | $578–$2.1k |
