Rarely good news when you have to call a plumber, but when you need one, Mason Plumbing provides above and beyond service. Saw water pooling out near our curbside drain on a Friday. Called and Mason came right over to check it out. Found a leak in a pipe behind our water heater leading out to the street. Gave us a bid within hours and knowing the leak was costing us money every minute, called on Saturday to book Monday morning. Jackson and Charlie arrived on time, were extremely friendly and answered any questions we had. Afterwards, double-checked that everything was working and found two other issues which they addressed. As part of the process, also checked around outside of the house, saw that our irrigation subsystem had leaks and recommended someone to fix it. Knew we were in good hands every step of the way! read more

We had Mason Plumbing out for both toilet work and propane. In both situations they were punctual, helpful, and gave me what I know is a fair price. They replaced our propane tank earthquake detector which is a huge help and safety measure to take. Have them do the same if you haven't replaced in the last 10 years. I trust Mason Plumbing. That's probably the best thing I can say. Even snapped some pics of Jackson (has done all our work and is awesome/knowledgeable/helpful) getting the job done! read more

Mason Plumbing - Jackson fixing the valve, I made him take the pic, sorry Jackson - Plumbing Near Me

See all

Had some leak issues with some faucets and angle stops. Jackson and Cameron came out and were able to diagnose the problem. A bad PRV (pressure reducing valve). They took care of the problem and saved us a ton of $$$, not to mention preventing a major problem in the future. I appreciate their patience and professionalism. A family business that gives the kind of service that will make you smile! read more

I have an old house and periodically need help with the plumbing. Mason Plumbing has always stepped up. Today I had sewage coming into one of my showers. They showed up quickly and took care of everything, including a drippings faucet in another bath/shower. Their guys (Liam and Charley today) are always pleasant, knowledgeable and calm. Yay! read more

Mason Plumbing responded within one hour for my emergency kitchen faucet leak. Liam diagnosed the problem and installed a new faucet for a very reasonable price. He was very courteous, friendly, and efficient. This was my first time using Mason P, but I'll now be a repeat customer. read more

If you want a reliable, honest plumber call Mason Plumbing. We have worked w lots of people over the years, but none are as down to earth, actually focused on our needs. We don't hear about how busy they are (they are but they done make it your problem), they show up, when they say they will and work to make sure our situation is fixed to our standards. Seems simple, to have someone provide an honest service, then stand behind their work, and be courteous... Mason Plumbing does it all as a matter of course, we are happy to have found them. read more

Got a bid from a reputable plumber to assess and fix a backflow to the property. The bid came in at $3,950 or $684/hour for just the labor. Got a second bid from Mason who was highly recommended. Cameron, the owner, came out himself the next day, was 100% responsive, experienced and nice and fixed the issue for $490. Highly recommend him/them. Nice to know I have a plumber I can count on and who won't cost a fortune. read more

Knew I had a leak and called Mason Plumbing as I had used them before. I like that they are a family owned business. Phollip was friendly and scheduled an appointment immediately. Riley and Liam arrived promptly and diagnosed the problem. Work done quietly and efficiently! Thank you Mason Plumbing for your professional and prompt response! read more

We had an emergency as a pipe in the ceiling started leaking. It was so hard to get a plumber to call us back, much less have time to stop the leak. Mason plumbing was booked out but squeezed us in and did a great job at a fair price. read more

It is possible that I have bad plumbing karma (sewer lateral infiltrated by tree roots, water heater that gives up the ghost just as family guests arrive, etc.). But, in each case, Mason Plumbing has come through for me. All great work, done quickly and professionally, and at a very fair price. Thank you! read more

I'm writing to show my appreciation for the immediate response and continued support rendered by Cameron Mason and his crew from Mason Plumbing on January 11, 2023. In the midst of one of our rain storms my sub basement was flooding. I contacted Mason Plumbing for an emergency repair at 4:30pm. Cameron called soon thereafter, found a sump pump, and arrived at my house within 15 minutes. My 2 sump pumps were both inoperative and the water heater had failed from the flooding caused by the rising waters. This timely response saved the basement from further flooding. Cameron returned the next day and replaced the 2nd sump pump and his crew returned the next day to replace the water heater. The immediate response and follow up by Cameron was above and beyond the call of duty! I would enthusiastically recommend Mason Plumbing without hesitation! He and his crew were professional in every way and in my experience quite out of the ordinary. read more

Well, we all know that five stars is very hard to come by. I mean you have to hit it on so many levels from customer service to setting up the appointment, the actual execution of the job and finally the price. And let's be honest you want some peace of mind knowing it's going to be done correctly. When it comes to plumbing, I don't think you could go wrong hiring Mason. I had an issue with the driveway drain that was slow going and needed to get fixed before the winter rains came. I called them on Wednesday and they came out the very next day with two guys and a truck and a snake. They snaked the drain, did some more investigation to make sure the other systems were working and even drew me a nice little diagram for future reference. They showed up on time, they cleaned up after themselves, were efficient and most importantly, they restored my drains to functioning perfectly. If you're out in the valley, give them a call as they do service the Lagunitas area. I hate hiring Plumbers, but I do love hiring professionals! Mason gets my vote. read more

I called Mason to repair a leaky faucet. A day after they did, I had a cracked sink. Telling this to Cameron his first reaction was to ask if I had dropped something on my sink,,My paperwork shows a small existing crack that silicone was used to fix. At no time during the repair or after was I told that my sink might crack. No apology from Cameron at any point of this process. Cameron's only solution was that I buy a whole new vanity countertop and sink at my cost. Very reluctantly i got Cameron to look at the damage but not before he said he had 30 years of experience and knew what he was working with. He confirmed only solution was for me to. buy countertop and sink I am so glad I DID NOT TAKE HIS ADVICE. because he was proven wrong. I found a plumber to successfully just replace my sink at cost thousands of dollars less than if I listened to Cameron. read more

Masons came quickly to fix a leaking lavatory cistern. They texted half an hour before coming and arrived on time. They did a thoroughly professional job and left the toilet clean and tidy. I would not hesitate to recommend them. read more

The guys that just came out here were horrible. Arrogant. Totally unhelpful. My mom is in hospice and we needed a faucet fixed. He reluctantly offered to fl the service call saying it was his least favorite thing to do. Wow. read more

As good as it gets! Called and left message and then emailed for work to be done. Received a call back the following morning, set up time for estimate that worked within my schedule. Told me if I accepted the estimate (not a high pressure sale's call) it would be ~2 or 3 weeks to begin. The day after his team received the signed estimate, which was very competitive and much less than some other big Marin names, we received a start state. He showed up with his team on-time, we had a pre-implementation walk through. His team completed the job, and did a post-construction walk through guiding me through what they did and was patient and willing with my questions. Subsequently, I had a pipe break, and although he couldn't service that call, he called me back immediately, and gave me 2 references that specialized in emergency plumbing. I find Mason Plumbing, honest, reasonable, and easy to work with. read more

See all

We have used Mason 3 times. The 2nd time, I asked if I could get trained in replacing an old leaking elbow joint under a bathroom sink. Cameron walked me through all the steps while answering all my questions expertly. I learned valuable basics about our house's plumbing. This has given more confidence about assessing plumbing projects. Anyways, no "service" in the bay-area is cheap. I highly recommend hiring Cameron and then picking his brain while the meter is running. This will help you gain better control over the "money pit" - your house. read more

Great service from Mason. On time, told me what was going on every step of the way. Cleaned up when done and happy with the result!

and they are back...same feel. Shane is our plumber and he is fantastic....and Christina (sp) the desk/phone person is so freakin fun!!!!!!! read more

We have had countless plumbers stop by to address this and that issue and have always been disappointed by their inability to address the most basic things. Mason Plumbing is a notable exception. They were easy to contact and sent one of their guys by within a few hours of our call. Brandon was fantastic...he diagnosed our problems ASAP and fixed them in the spot. They will be my go-to plumber from now on. read more

Our sewer backed-up during the pandemic and I called Mason Plumbing and left a message. Within minutes Cameron called back and was out to our house in less than 30 minutes and cleared the drain. Very friendly, very professional, even cleaned up the mess. I've used them before to remove roots from a water drain pipe. Same great service. I wouldn't hesitate to call them for all my plumbing needs whether a leaky faucet or a new toilet or hot water heater. Thanks Cameron. Joel F. read more

Have used Mason plumbing for years on issues large and small. Always dependable, staff wonderful and prices reasonable and trustworthy. Cameron and his staff are our go to folks for plumbing issues at our home and rental property. read more

Cameron did the call beyond duty with my mom in Mill Valley. He came multiple times to try and fix the problem and was amazing in helping her find someone to fix a problem that was associated with her pool. He was a real person, really cared and is someone who is not from some big plumbing company that looks at charging by the hour and ripping people off. Cameron is a true legend. read more

Have lived in Marin for several decades and couldn't live without Mason Plumbing! Most recently Rufus came out to repair toilets: prompt, efficient and taught me a few important things to know. Greatly appreciated his checking in with me at the end and having me flush the toilets, just to be sure they met with my satisfaction! Fully recommend this wonderful company! read more

This will document an unfortunate experience with Mason Plumbing. I called them to clean a backup in my sewerline. Two men were at it for several hours without success, and since they did not know if the line could be cleared, I told them to stop. Thereafter, one of the service men read from a tablet that I owed him $ 615. I responded that I wanted a bill because on a previous call I had to make many calls to finally get a bill. The service guy called Cameron on the spot, and Cameron responded: "you know where that goes". A few minutes later Cameron called me and said "I heard that you don't want to pay the bill" - I'll have to contact my lawyer". I responded:"I never said that, just send me a bill". A week later I did receive a bill for $ 631 for 3 hours of work (2 guys @ 3 hrs = 6 hrs) The guys left and sewage was still overflowing. This is injury on top of insult. Why did it take 6 man hours (and probably more if I hadn't stopped them) in an unlikely event of success. Moreover, their work habits left much to be desired as one of the guys was standing around most of the time. read more

Cameron and his team are top notch. Two contractors we've worked with recommended his work, and we've had great success as well. We've used Cameron and his team for many projects now, from small (installing a garbage disposal and re-seating a toilet that had a failed wax seal), to large, such as installing a new gas line to the street so PG&E could install a new meter and upgrade our gas service. His pricing is fair, his work quality is excellent, and his response to requests is timely. They show up when they say they will, and when we had some unexpected changes to our gas line installation, Cameron came by on short notice to make sure we didn't miss our construction date with PG&E. Highly recommended. I only wish all contractors we've worked with were as good. read more

Who was that masked man? I called and within an hour he was here. I'm not exactly sure who it was, but very pleasant, knew what to do and look for and gave me all the answers needed. Did a quick tour of the house and recommended I get some info from water company. Yes, he was masked up and respectful of distance. And, guess what. Complimentary visit! Still stunned. Call them. Best call you'll ever make. Fred read more

Wow. This is truly the best customer service I have received in a very long time. Cameron (i think that was his name) came by because all of our showers only got to luke warm in our new house. He diagnosed the "problem" in 1 minute, gave us advice on our kitchen faucet, was out the door in 5 minutes and didn't charge us a dime. He was courtious, professional, knowledgable and didn't make us feel stupid for not knowing about child-safe stops on shower handles. Now that is service. I was faithful to another plumber in the area until now. Mason Plumbing gets all my business from now on. read more

Chris and his team are awesome. We bought our house in January and not a month later had a serious gas leak to deal with. They jumped into action (rearranging their schedule because of the urgency) and repaired an underground line that was corroded. They have since been back to do a few other non-urgent repairs called out in the home inspection, all with expediency, professionalism and value. I've owned homes for 20+ years and had my share of plumbing problems. Mason Plumbing by far has been the best service provider I have ever worked with. Thank you! read more

Called when needed to get gas line earthquake emergency shut off valve replaced. Had reported possible leak to PG&E who came out, confirmed leak, then shut off gas telling us we need to get repaired before they could turn it back on. It was the day after Christmas and nobody was available. Crystina of Mason Plumbing picked up and was an absolute angel doing everything she could to help. All of their people were busy that day so she gave me a few referrals and didn't rest until we got the issue resolved. You rarely run into people this kind and thoughtful so the least I can do is write a review and tell the world that these are good people and deserve our business. I know who to call the next time I have any plumbing issues. Thank you again, Crystina! read more

We received Fast and professional service from Mason plumbing. We had a problem with our sewer line at our home the day before a holiday weekend. I called and Mason was able to send someone out within 2 hours of my call. They diagnosed the problem immediately and was able to have it fixed by the end of the day. Will definitely use them again for any other plumbing issues in the future. read more

I can't say enough about them! After i, my family and friends have so often suffered through lousy, overpriced, incompetent service from so many service providers coming to our homes, I was beginning to believe organizations like Mason Plumbing were a thing of the past. What a treat to find people who truly care about doing the best job possible, are pleasant, highly skilled and reasonable. I had a dripping faucet and a water heater that I thought was on its last legs. Cameron, the owner, checked everything out, showed me how to get more life out of my water heater and assured me that fixing the faucet was going to be attended to in a timely way. True to his word, the next day everything was fixed! I was truly stunned at the quality of care I received.I wish I could give them six stars, so above and beyond did they go, on every level. read more

Cameron Mason and his team are prompt, professional, expert and honest. In my business I have frequent need for plumbing services and Mason Plumbing is always the first call I make. read more

Finding a good plumber is a challenge, and I am pleased to say I had an excellent experience with Mason when my sewer line backed up at my home in Mill Valley. It was one of those projects that had the potential to become very expensive, but Mason was able to figure out what the real problem was before the job scope could go out of control, and the line was fixed, probably for another 50 years. Based on that experience these guys will be my go to plumbers. read more

We have had a wonderful experience with Mason Plumbing. Cameron scheduled an estimate within a day of when I called.He explained our problem and the choices we had. The work was done within a few days. Cameron called the morning of the work to say when Shane, the plumbing technician, would arrive and Shane arrived on the dot! He was so very nice and personable and respectful of our space as he replaced a toilet and a hot water heater. He explained everything to us before he left. We are extremely satisfied and will definitely call Cameron again in the future if we need any plumbing work. Cindy and Buff Bradley read more

Old cabins need love too! Based on yelp reviews, I chose mason plumbing to assess a sewer situation at our family cabin in Inverness. I phoned Mason plumbing after waiting two days to hear from a "local" plumber who never came through. Cameron immediatley answered and discussed the issue with me. All within a few hours he drove out to the cabin, assessed the situation and fixed the problem. When he phoned with the good news I was so pleased! It is easy to expect the worst with these old cabins and he seemed to have done a very thorought job (checked and double-checked) to be sure the lines were clear. His response was so fast; excellent customer service. I will certainly use his services again and would highly recommend him based on our phone interactions and quick response time. Thank you Cameron Mason. You rock! read more

Had immediate availability and provided great service. Glad to have found an excellent local plumbing service!

I have to agree with the other reviews. Mason plumbing is fast and professional. We had a weekend plumbing emergency and Mason Plumbing came out and had us up and flushing again in no time. Cameron's did a great job and we were very happy with the price. What more can you ask for? read more

Fast response to replace toilet innards. Not cheap - but these are plumbers, not handymen. Reliable, on-time and friendly. Saw their ad on-screen at the Fairfax Theatre... would not hesitate to use them again! read more

Cameron Mason was our plumber on a MAJOR remodel of our house in Larkspur. Despite many twists and turns on a job of this side, he and his staff did an outstanding job. Six months later, two of our toilets we acting up. He came out on short notice and not only fixed them, but gave me a crash course on what to look for, etc. Its hard to find great folks with integrity....these guys are loaded with it! Hire them - they'll do a great job! read more