Recently, the pilot light of our boiler went out and I did not feel confident in touching anything. Our household relies heavily on hot water for care purposes. Dan came immediately and was kind enough not to charge us because it did not take much of his time. Still he had to come here and time is valuable. We really appreciated his kindness. Monique D. and Clark N. read more

Dan B. Underhill is an amazing plumber and a neat person to talk to! My bathroom had many years worth of deferred maintenance issues, and a previous plumber, who came very highly recommended by a personal friend, took one look at my bathroom, made up some excuse about "being called away on an emergency," and never returned. But before that previous plumber left, he had made noises about me having to buy a whole new sink, because he didn't think parts for mine were still available. So that gives you an idea of the type of situation I presented Mr. Underhill with. Fortunately for me, Dan, with his can-do attitude, got everything fixed. And he never said one word about trying to sell me on a new sink. The quality of Dan's work is excellent, and his pricing was more than fair. Best of all, my bathroom is now fully functional, with no leaks and no maintenance issues whatsoever. I hope Dan lives to be 150, 'cause I don't ever want to use another plumber! read more

I called and asked for an estimate. He gave me one right away. I asked for a time and he could come right away. His estimate was reasonable and his work was good. Look at his card with a painting called. "Portrait of the artist as a Plumber" , on it. read more

Our water heater went out, so I called Dan since his name was on a sticker as the original installer. I left a message for him and he called me back a short while later. He and his son came out the next morning and replaced it no problem! Highly recommend this fast and friendly service! Excellent pricing too, compared to what another company initially quoted me. I will definitely call him for any future plumbing needs. Thank you, Dan & Morgen! read more

Great experience. Had a broken water heater that was leaking into our kitchen. I called and left a voicemail and within the hour he was onsite. Dan was responsive, thorough, and quick to find a fix and execute it. His prices are also very reasonable. Highly recommend. read more

Dan is the top 1A% of plumbers in California. I had a very challenging bathtub drain problem. It was complex and challenging. Massive digging had to be done. The final bill was $8,000. Dan and his team did a great job. Dan is a brillianty conceptual thinker and a wonderful person to work with. In the plumbing business, nobody does it better! read more

Dan is a truly outstanding person and great professional. I have read about him at Nextdoor and was amazed by his willingness to share his knowledge and experience with a DIY guy like me. Dan's advise allowed me to significantly cut the cost of a large project by doing many things myself and avoiding costly mistakes along the way. Dan is a very active community member with demeanor and vocabulary of a university professor. I thoroughly enjoyed our conversations and Dan's sense of humor. read more

Dan is a jack of all trades! He has been in the plumbing business since the mid-70s and working on art work since the mid-50s! Unique combination? I think so! We recently ran into some apartment issues and our landlord reached out to Dan's business to fix our bathtub leak and replace the garbage disposal. Although I cannot speak to the costs, I can vouch for the service which is top-notch! Dan is a very sweet and gentle soul. He is thorough and does everything with a smile which is pleasantly refreshing. I highly recommend Dan for anyone with plumbing or handyman needs! read more

Dan is consistently great at returning calls and being on time, unlike some of the other plumbers I've dealt with. He even called me at 8:15am to confirm that he would arrive around 9. He installed my new toilet in less time than was estimated, which is always great. He also warned me of potential issues with my lead pipe, but didn't try and pressure me into expanding the scope of the job. Dan also installed a hot water heater for me 6 years ago. I've never had a problem with it. (Thanks Dan!) I would highly recommend Dan to anyone. read more

Dan was very responsive to my call in the evening after a failed attempt to hook up a laundry center earlier that day, due to old hook-up water valves that wouldn't turn and so needed to be replaced. Dan came out promptly the next morning, saw what needed to be done, fetched the parts and replaced them all in under 2 hours. He was so friendly and engaging and thorough, I wouldn't hesitate calling him again. read more

I have used Dan's service 3 times to date. I have used 4 other plumbing services for various problems and while they have been efficient, I feel that Dan's analysis and remedy for my plumbing problems to be very professional. He is a very sincere professional person. read more

Dan is kind, thoughtful, and a great plumber. Fixed three of our drains in an hour. Was very flexible with timing, easy to get a hold of, and gave good tips for keeping our drains cleaner. He even drew me a picture of the optimal drain guard. Was even understanding about the inevitable lack of parking in my neighborhood. Thanks! read more

I always feel comfortable calling Dan. He has great integrity. He recently suggested I explore another (free) option, rather than pay him for the work I needed done. He also offered me advice on how to stop a leak, rather than making an unnecessary trip and charging me for it. We are lucky to have this man in our community! read more

There are not enough super things to say about this plumber! I had an emergency -- a nonfunctioning toilet in a one-bathroom home and he responded immediately! It turned out there was mud in the tank of the toilet from work the Water Dept. was doing on the street and he got the pipes roto-rootered so they worked perfectly! I mailed him the receipt later to add an explanation of the Water Department being at the source of the problem, so that I could file a claim with the City for reimbursement, and he wrote a clear explanation on the receipt and mailed it back to me, also instantly. He is good-natured, skilled, and super responsive. Highest recommendation!! read more

We had an emergency plumbing situation come up late on a Friday afternoon. After making numerous phone calls to every plumber in the book, where nobody was able to help us (if they even answered their phones), Dan came and saved the day. He fixed our connector to the water main that evening, and charged a very reasonable price. Would not hesitate to use him again. read more

For the first time in years I had an easy time resolving a plumbing issue. Dan was on time, reasonable priced and an awesome guy! Thanks Dan! read more

Dan is amazing: reliable, trustworthy, honest, knowledgeable -- and quite a character to boot. I have relied on him for years, just had an emergency with an ancient hot water heater, called, and he had a new one installed a few hours later. I was also surprised that I paid LESS than I paid (someone else, before I found Dan) to have one installed about six years ago. I learned the hard way that ntrustworthy or unskilled plumbers can do a lot of damage. Choose carefully! read more

Dan is terrific. Was able to do a major gas line repair fixing many leaks and getting PG&E to turn the gas back on for our house. Great work, very conscientious and careful. He has also helped us out several times on plumbing items and been terrific too. When dealing with plumbing and gas lines and without living essentials it can make things very trying. Dan's friendly and engaging spirit make it better and work is outstanding. read more

The first time I encountered dan was seven years ago when a water heater broke. I called Dan and three other plumbers. He was 1/2 the cost and much more personable. Since then he's helped me with a bathroom remodel as well as other small and large plumbing emergencies. He's quite a character. The quality of his work is good and his prices are reasonable. read more

Dan was so nice but he was up to his ears and couldn't help me. He gave me 3 other people to try and that is so nice. Dan was recommended to me by Mike at CalStar plumbing and Mike is the person I've used for years but because Mike is hurt he recommended Dan. Dan and I spoke and he is the nicest person, I would totally recommend him. read more

He was great.. Unclogged the shower, reasonable rates and personable. Calling again to do another job