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%95+51.8Reliability 24%94+22.8Value 14%100+14.1Replies to reviews 7%85+6Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.95SCOREProMax Water Heaters & Plumbing
Everett, WA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #20Position by Experts Score among all companies we track in this category. of 54 leak detection services · 5.0★ from 156 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: craft & service and value; weakest: replies to reviews.
Reviews for your job
Customers hired ProMax Water Heaters & Plumbing for 8 kinds of job.
ProMax Water Heaters & Plumbing for water heater installation
Clear ✕All 33 Google reviews tagged “Water heater installation” · showing 20
My hot water tank was leaking while I was at work. They responded promptly to help my family stop the water leak to prevent damage and replace the hot water tank. Great communication and explained everything. No pressuring or up selling.
Super communicative, fast, and clean water heater installation. Highly recommend.
Made suggestions and scheduled work immediately. Showed on time for appointment, reliable and knowledgeable service. Thank you Evan with promax.
Our tenants notified us that the water heater was leaking. I called 3 places and Evan from ProMax Water Heaters responded the fastest, provided the best estimate and was able to get to our repair the next day. Evan installed the new 40 gallon gas water heater and showed me a few things he updated and changed for…
We had a water heater failure the night before and gave ProMax a call and got scheduled for the next morning. We had Evan handle our new installment. They arrived early, let me know what to expect and began working right away.
Professional, high quality work, kept work areas clean, explained work and great communication throughout. Very happy with work provided.
Owen was friendly and very professional. Before he started any work he first established exactly how the existing system was set up and helped me understand my water supply and heating system. Would definitely use them again!
MaxPro replaced my aging water heater, they were extremely professional, very easy to work with, explained multiple options, they were able to install my new WH 24 hours after I contacted them, I ended up going with the Heat Pump WH, which qualifies for a SnoPUD rebate, I would highly recommend them.
ProMax was quick, efficient, thorough and left the space spotless! I highly recommend!
Competitive pricing, good communication, install technicians were great. 👍
Review Updated May 2026 We had Promax out to install a new Navien tankless water heater last week. If you want to get your tankless water heater installed properly, ProMax is the one. Evan, Owen and Galen did a fabulous job installing our Navien tannkless. It was a complicated job given that the original water…
The service was prompt and friendly. My 20+ year old hot water heater was leaking into my crawl space. I called PromMax in the morning. A new water heater of the same make was delivered to my house and installed that afternoon.
Working with ProMax was a pleasure, beginning to end. The quoting process was detailed and answered questions clearly and promptly. Overall the communication was great using both email and text messaging. They installed the Essency EXR on-demand tank electric water heater which is the latest water heater technology…
I’ve used Pro Max a few different times both on my job sites as a project manager, as well as my own personal house. Evan and his team Our true professionals and do incredible work at a reasonable price.
"I recently had a new water heater installed by ProMax Water Heaters & Plumbing and I couldn't be happier. They expertly diagnosed the problem and even worked with the manufacturer to get me a replacement under warranty! For the installation, the team arrived right on time and was incredibly professional. The work…
Great! We noticed our water heater leaking around 8 pm and knew we needed to get it replaced right away. My husband got a quote that evening from a big box store but it was astronomically high. I said, let me try this local company for a comparison quote. I called ProMax, the gentleman on the phone was very…
Our 12 year old water heater stopped working while we were out of town over the holidays. ProMax was recommended to us by a friend. I received a quote within an hour of sending them an online message. We checked with two other places and ProMax had the most reasonable rate, and they were the one that could come out…
Excellent communication and excellent work. Very thorough.
Promax water heaters & pluming did a fantastic five star job! Owen did a great job replacing my hot water heater. He was on time, very professional & knowledgeable, and did a great job. We’ll definitely use them again if I have any other plumbing needs.
Working with ProMax was simple, effective and professional from the first phone call to the ending the job, all in less than 24h which included resourcing a more specific water heater that is not typically available in stock! Everyone was friendly and direct towards getting things done. Impressive work!
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 |
|---|---|---|
| Water heater installation | 33 | $1.2k–$2.5k |
| Plumbing pipe repair | 10 | $328–$1.2k |
| Water heater repair | 6 | $83–$493 |
| Toilet repair | 5 | $192–$680 |
| Plumbing leak detection | 4 | $78–$642 |
| Shower repair | 3 | $278–$1.0k |
| Faucet repair | 2 | $166–$542 |
| Toilet installation | 2 | $480–$1.2k |

