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%96+23.3Value 14%84+11.9Replies to reviews 7%100+7.1Experts Score= 94Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.94SCOREFlow Masters Plumbing, Drain and Water Heater
Daly City, CA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #4Position by Experts Score among all companies we track in this category. of 14 sump pump repair services · 5.0★ from 715 Google reviews
Report card
Percentile vs other sump pump repair 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 momentum; weakest: value.
Reviews for your job
Customers hired Flow Masters Plumbing, Drain and Water Heater for 8 kinds of job.
Flow Masters Plumbing, Drain and Water Heater for drain cleaning
Clear ✕All 26 Google reviews tagged “Drain cleaning”
Fernado was absolutely AMAZING!! He was not only fast and efficient with the work that he did, but he got the job done with such a positive attitude. He was polite, courteous, cheerful, respectful, and very down-to-earth as well. I was really anxious about my issues with my bathroom sink, but Fernando literally…
Flowmasters is an excellent plumbing and HVAC company. Miguel the HVAC technician is excellent. He was able to diagnose and repair my furnace in my attic in a hard to get to location. He is very knowledgeable and thotough. Overall FlowMasters has excellent plumbers and HVAC techs.
Very responsive and customer focused, Great Company. Alberto knows his stuff and he's easy to work with.
Really nice and professional. Arrived very early within the timeframe window. Friendly and experienced. Fixed a blocked shower drain and bathroom sink.
Professional, personable and honest
Excellent personnel. They arrived in a timely manner and on short notice request; dealt with common, old-plumbing-type problems; and quickly obtained a complete survey of the property problems. Now, we can figure out the needed repairs and replacements.
We have never had such a pleasant experience with a plumber! Flow Masters is highly professional, offers excellent customer service, communication, and thorough attention to detail. Scheduled appointments were verified the day before and kept ON TIME! Kevin was wonderful to work with, listened carefully, explained…
These guys are great! I was able to get an appointment right away. Kevin and Sebastian came out and explained everything that needed to happen and let me choose which route to take. They were cheaper than “the other guys” but so much more professional. They checked in with every step to see how I wanted to proceed.…
I had an excellent experience working with AJ from Flow masters to clear up a clogged kitchen sink. He is a true professional—knowledgeable, efficient, and very easy to communicate with. It’s rare to find someone who combines technical skill with such a friendly and straightforward manner. I highly recommend AJ and…
Bought a hundred+ year old house in SF and the plumbing needed some TLC. Kevin and Alex knocked out 8 separate items from a pressure reduction valve to new toilet in one day and Fernando hydrojet the lateral line earlier in the week. Also shout out to Sebastian who did the first inspection and coordinated all the work orders for this project.
Fast, honest, efficient. Highly recommended!
Kevin was quite knowledgeable and friendly. He worked very efficiently and cleared our drain quickly. I would not hesitate to work with him in the future.
AJ did a great job - showed up on time, friendly, did the service in a timely manner and explained everything really well along the way. Excellent service.
Extremely happy with the work performed by the Flow Masters team. Their communication and professionalism were excellent throughout the entire project. Highly recommend them for any plumbing needs
AJ was so professional and I’ve never had a better plumbing experience. He walked us through every step of what he was doing. Showed us pictures of our pipes. And gave us a full report afterwards.
Miguel came at 8:30am and knocked on the door, I was in a meeting and never answered but he still had the politeness to wait for 5 minutes outside. Once he saw the clogged bath he worked on it on his own and had it fixed within 15 minutes. He was able to explain to me the issue and how to prevent it in future.…
On Sunday Morning at 7am, we had no hot water. We called flowmaster and received live person who told us someone would call us within 15mins who was knowledgeable about our boiler. A technician Conor called us back in less than 5mins and arranged for a time to come out in the next hour or so. Connor arrived and…
Flow Masters is simply the best. They installed all the plumbing for a big home remodel, and all subsequent service, inspections, and repairs. I’ve always been completely satisfied!
The technicians from Flow Masters were very professional and very thorough with the work. They took their time and did an amazing job, better than several other companies I've hired in the past. I was wondering why they were taking so long but turns out they were just going above and beyond.
I don’t usually write reviews but my experience was so pleasant i felt inclined to share. Willy came out to address multiple back ups from my laundry and kitchen lines. He was very knowledgeable in his work & introduced himself in a profesional and friendly manner. He was very patient while answering my many…
Willie was super helpful! He spent the time to make sure we understood what was going on and made sure he left with our sink working again! 10/10 would recommend him and request him again if needed! Thanks Willie! Oh and thanks for coming out during a massive storm!!!
Flowmasters plumbers repaired a water pipe leak from the mainline. They did a fantastic job, and it was not a simple job. They were able to diagnose and repair the issue the same day I called so we didn’t have to be without water too long. Workmanship was great. I would highly recommend them!
William came out to address a blocked dishwasher air vent. He was super friendly and considerate and got the job done quickly. He explained to me how to avoid future vent clogs such as the one I had. Thanks very much!
We had major plumbing issues and Flow Master saved us!!! They were very responsive and took care of our problem before it became a catastrophe. We highly recommend them!!!
Rating only, no written review.
Rating only, no written review.
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 | 48 | $1.4k–$2.8k |
| Water heater repair | 38 | $264–$796 |
| Toilet repair | 36 | $251–$611 |
| Plumbing pipe repair | 32 | $269–$1.4k |
| Plumbing leak detection | 26 | $216–$559 |
| Drain cleaning | 26 | $248–$506 |
| Faucet repair | 22 | $264–$782 |
| Heating system repair | 17 | — |
