Malcolm Plumbing & Mechanical
Company Overview
Located in San Francisco, CA, Malcolm Plumbing and Mechanical is a fully licensed and insured plumbing contractor serving Colma, Daly City, Brisbane, and the surrounding areas. We are a family-owned business that values our relationships with clients and have been part of the plumbing industry for over a century. Our skilled plumbers provide a comprehensive range of residential and commercial plumbing installation and repair services. Whether you face a minor clogged pipe or a complex sewer issue, we are your trusted plumbing experts. Our commitment to the San Francisco area spans over a century. Our expertise lies in handling Victorian and Edwardian plumbing. Matt has over two decades of experience in plumbing and boiler systems in San Francisco.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 7:30 AM - 4:00 PM |
Tue: | 7:30 AM - 4:00 PM |
Wed: | 7:30 AM - 4:00 PM |
Thu: | 7:30 AM - 4:00 PM |
Fri: | 7:30 AM - 4:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

I'm sure they are reasonably competent, but their prices are outrageous. $736 to clear a line that wasn't even clogged (so it should have been easy.) Charged for about double the time they were here. When we protested, they refused to adjust the bill and threatened to turn us over to a collection agency.
If you're desperate and don't mind being charged double what anyone else would charge, call these guys. You can be sure I won't call them again.

I can't say enough about this company & it's all good.
Called them to do a back flow inspection on my boiler which another company had me waiting over 3 weeks & never returned my calls. They had the request done in 3 days & so I need a new boiler because mine has only been running for 95years
The owner Matt I believe that's his name took the time out for me & answered all the ?'s my husband & I had re; a new one. The other company wouldn't even respond to numerous phone calls to them. Which I didn't need at the time believe me!!! & The receptionist is so helpful & professional & would call back when she said she would
THANK YOU SO MUCH!!!
Michelle the admin. Manager is so pleasant to deal with & remembers their previous clients which add a personal touch to spending lots of $$$$
But a job done right is what I'm looking for & you get what you pay for. Ok enough!!!!!
This is not a sales pitch just a happy customer
So too 40,000$ for a. New boiler Sticker shock
Malcolm team has done a full estimate for me re; boiler
But again. I thank you because I know the job will be done correctly.

Overpriced, rude, dishonest, and not professional.
Received an email 10 min before they were scheduled to say the plumber was on his way, and that he is not yet a plumber, but currently in plumbing school. First, if the plumber is a student, you have a duty to tell me that before arrival. And then I called to ask if there was any other plumber available (naturally I wanted someone experienced, as we just expensive water damage), and was completely told off and scoffed at by the staff, saying it was ""just a disposal"" and I can't get someone else. Then I talked to the owner Matt, who accused me of being rude and offensive (literally the last adjectives anyone would use to describe me), and asked me if I was going to yell at the plumber when he came. I'm sorry, but WHAT?
Re dishonesty: When I set up the appointment, I had asked them around how much it should cost, and they said it was impossible to tell me (my sink disposal broke) until they came. When the plumber actually came, he quoted me $534 for 1.5 hrs of work, which is ridiculous, even for SF standards. He also told me that the sink disposal replacement was basically a flat fee. SO, Malcolm plumbing knew it would cost $534, and just refused to tell me beforehand because I'm sure they know it's overpriced. BUT, once you take off work and go through the effort to have the plumber there, they know you're just going to pay it, no matter how much it is and even if you know you're getting ripped off. I looked up other SF plumbing companies later and found out that replacing a disposal should cost far less.
So stay far away, unless you want to get ripped off, get yelled at, and have a plumbing student fix your pipes.
FYI, the one star is for the plumber, who was nice and seemed to have nothing to do with the actual pricing. Zero stars for everything else.

We used Malcolm Plumbing to properly insulate our radiant floor heating in a new home. The seller hadn't properly completed the system and our plumbing inspection had given us a quote and scope of work that was almost double what we got from Malcolm Plumbing, who let us know we could achieve good results without completely revamping the work. Both times they came out, we received an email telling us exactly who was arriving (with a photo) and when, which is nice to get for security reasons. They arrived on time, gave great service, and always followed up via email. They are one of the few plumbers in the city who seem fully comfortable with radiant floor systems.

Just used Malcolm Plumbing for the first time after being referred to them by my next-door neighbor. The office is very organized. I left a message asking for a non-emergency service call with their answering service on the weekend. The office called me promptly at 8:30AM Monday morning. We set up an appointment with a time window of 10am-noon. At 10:15 I got an email saying the plumber was on his way, and he arrived a few minutes later. He was able to repair the problem (toilet bowl needed a new seal) quickly and without making a mess.
My only complaint was the price - $211 for less than a 1/2 hour visit to install a part that cost under $5. But prices are high in SF and its not clear than another plumber would have been any cheaper. I would gladly use Malcolm Plumbing again.

Malcolm plumbing is the best great service and great price. They always do a fantastic job I love them so much Kevin is a great guy fantastic bussiness.. best plumbing in the Bay Area let me tell you!!!

This is the only plumber that called me back on a holiday weekend when our radiant floor heating system went offline. They sent a professional who arrived on time, explained the complexity of the work, gave an estimate via iPad, and then fixed the problem.
Their administrative staff have it together too. These are my go-to plumbers now.

We had plumbing issues in our old home. Matt and his crew came out, on time, and gave us an exceptional excellent service. Being picky about the work that happens to our home, Malcolm Plumbing was patient, explained what needed to be done, and got the job done right the first time with our satisfaction. I will definitely pass the word about Malcolm Plumbing and will call Matt to fix our old home again. You have our vote for customer satisfaction.

I am a newly single, home owning women, that had not had to take care of any home repairs on my own ever, so when I had a massive leak I didn't know what to do. I was referred to Malcom Plumbing and soon after I called they arrived at my home and were so kind and patient to explain all that was wrong. They did the repair in a timely fashion and the cost was so reasonable that I almost fell over. Matt thank you thank you thank you, I'll be forever grateful for your kindness and your quick response. Now I'm gonna go take a bath.

I have used this company for over 20 years and they have always come through for me and
my plumbing problems. Always pleasant even at 2 am in the morning when the house was
flooding ! Its great to see a familiar face and know you are safe and they will do the job right.
Matt and Kevin run a good shop!
Thanks
S in SF