great service for main sewer clog and hydro-jetting root intrusion. they were great, my sewer was about to overflow. before suggesting what to do (hydro-jet or auger), they unclogged the main line so they could see what is going on. once we had a clear view of the issue he pointed why the root intrusion was happening (thanks prev owner), how to resolve it long term and suggested hydro-jet to remove the root mass. price was great, they were very nice and informative. will definitely use them for future plumbing needs read more

We were experiencing a plumbing issue with our shower on the weekend. Andrew called me back quickly and was able to come by to take a look at our issue within 20 minutes (after finishing another job elsewhere). He quickly diagnosed the problem and went to grab the part. He fixed the shower and tested it thoroughly, and called us in to make sure we were happy with the water temperature and the repair overall. He was professional, knowledgeable, efficient, and fairly priced. I will not hesitate to call Comet Plumbing again for any future issues. Hands down, best plumber I've ever worked with. read more

It was a weekend emergency. The drains in our house were blocked and the toilets didn't flush. Andy promptly ran his camera, diagnosed the problem (sewer roots), and provided a very reasonable estimate beforehand. He removed the roots and now our drains/toilets work great. Very experienced and professional plumber. We are happy customers. read more

Andrew cleared my clogged sewer line of roots and then ran a camera to make sure it was clear, which I got to see. That is the first time I have seen a plumber take that extra step, which I really appreciated. My old house does not have a clean-out, so Andrew had to remove toilet and run the rooter from inside the house. Andrew was very careful not to damage anything in the bathroom and cleaned up everything when finished. He also used an extra thick wax bead to ensure a good toilet seal. Andrew gave an estimate before he started, was on time as promised, and texted to let me know he was on the way. Outstanding service. read more

We had replaced entire sewer line under the house and to the city main connection including clean out ports. We are extremely pleased with the quality of work and appreciate the professionalism of Andrew and his crew. I have already referred Comet and Andrew to my aunt in Santa Clara. read more

Andrew saves the day again and again! Garbage disposal broke and we needed a replacement. Andrew has helped us with various plumbing projects from big to small. Clog to full main line replacement. He replaced us with a new disposal in one day and it only took an hour. Andrew is always so pleasant and efficient. if you need a plumber in Sunnyvale, he is the one to call. Thank you so much Andrew and Comet Plumbing Crew. read more

We had just moved to our new place and the sewer lines kept backing up. We called Andrew at Comet who came with recommendations from multiple neighbors. He and his team were caring, meticulous, trustworthy and very professional. They ended up fixing the pipes on the property and putting in a new clean-out with all the permits. Then we found out that there was collapsed pipes beyond our property line into the middle of the street. He got in touch with the city immediately and got them involved to fix their end of the issue which was very helpful, because some cities put the burden on the homeowner to fix that. All in all, a great experience. I would highly recommend them and would certainly use their services again. read more

Andrew fixed the sewage block and restored everything to normal function. He was prompt, polite, and efficient. His price was way below the other rooter people I called first. He's my new go-to plumber. read more

Had a plumbing emergency where our sewer/cleanout was backed up and causing glugging in the household toilets when flushing as well as the showers to back up. Called and got an immediate, calm (appreciated in a shitty situation like this) response from Andrew who said he'd be here within an hour. Andrew came and fixed the problem immediately and fed a camera through the pipe to see what caused the blockage. He also gave me a thorough understanding of my sewer situation which was much appreciated - infinitely better service than previous plumbers I've worked with to solve this in the past. All at a reasonable price, I'm grateful for the impromptu save on a Sunday. read more

Andrew does great work at a fair price, and is able to come out very quickly when needed! I met him through a client, and am very glad I did! He just installed a sewer cleanout access for me-we weren't expecting him until Monday, but he was able to swing by today and get the job done very quickly! Highly recommend him, and I'll definitely be calling again for future plumbing needs! read more

Andrew the plumber and owner of company was easy to work with, very sincere and straightforward. Explained options re: sewer line "belly" due to 130 ft+ tall redwood tree roots, resulting in yearly sewer line blockage. I decided to have entire line replaced, with "trench less" placement done under redwood tree area to replace clay pipe. Fair price quoted. Excellent subs hired, side yard concrete walkway had to be removed, replacement concrete job very well done. Thank you, Andrew! read more

We are very pleased with the service we received from Comet Plumbing to replace our sewer line. Comet had been recommended by a number of people on NextDoor, so I contacted them for an estimate. Andrew responded quickly, and of the three estimates I received, his was the best price. I also felt comfortable that he understood the job he was quoting, where I didn't have that confidence in one of the other vendors. He was able to do the work quickly and actively followed up through final inspection. I was impressed with Andrew's work ethic, diligence and honesty throughout this whole process. I will be calling him again for future work, and I highly recommend his service. read more

Great service, very reliable, responsive and reasonable to work with. Andrew has been helping us for over 2 years with plumbing issues

We have had Comet Plumbing work on several jobs over the years. Andrew and his crew are always professional, informative, punctual, and reasonable. Quality and timely work, and our go-to for any future issues. I've never had any responsiveness or communication concerns. Text or call the 408, or call the 800 number. read more

I called Andrew at 7:30am this Sunday morning and by 11am he was out here with our sewer blockage problem. Reasonably priced and he worked really hard to resolve our draining issue. We were all worried for a moment but so glad Andrew kept working at it and tried different outlets until our tub started draining again. Thank you so so much!! read more

Comet Plumbing (Andrew) was responsive and on time, price quoted was on point. The job was completed and am very satisfied with the overall service and will be using Comet Plumbing for all future needs. I would highly recommend Andrew and his company to anyone in need of a plumbing problem. read more

Andrew (Comet Plumbing) did all of the re-piping for half of my family's house. He also replaced faucets, put in new valves, etc. Great job. Very professional. read more

Very happy with my new plumbing service: Our house was overdue for a line clean out where drains kept backing up, and I called Andy for the work. He had openings earlier than I was ready to be home to have the work done! 1) easy to schedule the job, 2) friendly and informative on the phone and in person, 3) on time for the job, 4) prompt work and cleaned everything up well, 5) drains now flowing properly! Happy customer. read more

I had a very major clog in our house caused by roots in the main line in front of the house. Andrew reached out within an hour of me filing a request on Yelp and came by to look at the issue shortly after. He used a camera to diagnose the issue, and we created a plan for installing a two-way cleanout and doing a trenchless replacement of the line in front of the house. He helped fix a very stressful situation quickly, and was great to work with throughout the process. Reasons Andrew stood out: 1) Really prompt, professional, and knowledgeable. 2) Didn't try to over-sell me. Gave reasonably priced solutions and tradeoffs of different approaches to fixing. I insisted on a larger upgrade of the plumbing system, and he was able to work with me on my goals. 3) Fast - was able to do a very major plumbing job the next day. 4) Quality - the work was done flawlessly. He left the area clean, and did a very thorough job with permits. 5) Price - he did the work for a very fair price. It's hard to get excited by a plumbing system, but getting to see the high quality work Andrew completed and knowing it's a solution that will likely outlive me makes me feel ecstatic. Will definitely call him for all future plumbing needs. read more

Andrew was prompt, courteous, and professional. We needed to replace two toilets. I had a lot of questions as this is my first time replacing toilets :-) Andrew answered all my questions via numerous text message exchanges which gave me a very good idea of the project and made me feel comfortable about it. After that initial consultation, Andrew not only finished the job with an very quick turnaround time, he also managed to save us some money buy getting the new toilets with wholesale pricing - which we originally planned to buy from Home Depot. I would highly recommend you to consider giving Andrew a call for your future plumbing needs. read more

Finding a good plumber is like finding a good doctor, dentist, lawyer, or mechanic. These relationships are based on a profoundly high level of trust. You can call a good plumber in a time of need, and he'll come right away and make everything better. I deeply value the business relationship I've formed as a repeat customer of Comet. Since I can't review each time Andrew and Comet have saved our bacon, I'll just list the jobs here: May 12, 2012 - My wife and 4 year-old daughter were alone when our ancient water heater rusted out and flooded the garage. She found Comet on Google. Over the phone, Comet helped her shut off the water to stop the flooding. Andrew arrived within the hour, showed us the cause of the problem, quoted the job, and purchased a new water heater that met our needs. He did extensive work to not only install the new water heater, but also to bring the entire installation, plumbing, and ventilation up to code. All was resolved, and bath time occurred right on schedule that night. August 13 - At my request, Andrew inspected the 20 year-old water heater in the condo we own. The same kind of flooding there would have been catastrophic, and Andrew pointed out the telltale signs that this appliance was indeed on borrowed time. I arranged to have Comet come in the next day when I had scheduled the delivery of a new dishwasher, as well as another handyman to do some unrelated projects. Andrew took great care in the installation of the new heater which was on the second floor of the condo. He was careful to stay out of the way of the other technicians while he installed everything to code and was meticulous with every step. I appreciated the time he took to communicate the rationale for each step he took. Later that week, we had a kitchen clog that was bad enough that I couldn't resolve it with chemicals or a snake. Andrew came by on his way home from a big job and used a high-pressure jet tool to flush out the clog, which it turns out was pretty extensive. This morning, I asked Andrew to come over to replace our derelict garbage disposal. He came over immediately and just happened to have a replacement unit on hand. He made our home safer and pointed out where we could improve the wiring under the sink. He also installed a water line for our ice maker that we'd been wanting to put in but had been procrastinating for fear of messing it up. The ice maker's doing it's thing as I'm finishing up this review. Can't wait to use it. A good plumber is someone you count on to get you through difficult times, and sometimes to make things just a little nicer at home. We're grateful and have real peace of mind with Comet. I really hope that my review doesn't get filtered out just because Comet doesn't pay for a premium listing here. My reviews are written with a lot of heart and consideration for what other members here need to know. I'd take it as a sign of complete disrespect if this review doesn't make it past the weekend. read more

Believe me, I wish I could give them zero stars. The guy (Andrew) came out to unclog my drain and not only FAILED to do so, but gave me a leak in the process! Started out by placing a 5 gallon bucket under the two sinks that were filled with water. I told him there's no way that's only 5 gallons in there. So I end up using one of my pots to scoop water out of sinks and into his bucket. 3 buckets later he starts 'working' on the clog. He left me with a leaking pipe stating that the last plumber did it. How's that when those pipes aren't even a year old and was not leaking until he touched it! He couldn't even fix the leak and left telling me to call a plumber! All told, he was here for about an hour and a half. I then called $15 Sewer and Drain and they were in and out in 15 minutes and fixed the leak he created. read more

He came onsite late at night & resolved my issue quickly and with courtesy & professionalism!! It's never pleasant to need a plumber after dark - and when others were shut down - Andrew was great !! read more

Andy replaced a cast iron sink with a stainless steel one, installed a pressure regulator valve, and installed an expansion tank (two plumbers, about 5 hours of work). In addition, he fixed a leak and went into the crawl space to inspect for other issues. The plumbing was old and it ended up being a much larger job than expected. Andy worked through all of the additional issues without adding any charges. His website self-describes him as hard working and honest -- both of which I found to be true. In addition, he was patient and a really nice guy. I'd hire him again without hesitation. read more

My husband and I woke up Xmas Eve to a wonderful gift from our house: a broken water heater with NO hot water. Since we were hosting our family Xmas dinner, this was quite the curve ball in our plans. After basic troubleshooting, we realized the 28-year old water heater had finally croaked. We called several plumbers only to find voicemails. Just when we were getting disheartened and brainstorming back-up plans, Andy called back. Yes! He came for the house call and evaluated our situation. He agreed with our assessment, and that we needed a new water heater. He wasn't planning on working today, but seeing our dead water heater, he decided to come and help us. Seriously, how many plumbers would do that on Xmas Eve?!? Thank you, Andy!!! We decided, to respect his time since he was suddenly working on Xmas Eve, he would take a couple other house calls while my husband and I went to buy the water heater. When he returned, he spent 4 hours removing our dead water heater and installing our new heater. Andy is incredibly detail oriented. He pointed out several ways in which our old water heater (installed several owners ago!) was not up to code, from non-functional earthquake straps to unsoldered copper pipes! (Yikes!) The new copper pipes he soldered was routed like a pro (I'm an engineer, and it was exactly how I would have wanted it! Keep in mind, I did NOT direct/ask for the routing, he just did it like a boss!). There was a minor mishap, which is why it's a 4-star rating instead of 5-star, but I won't go into it, because his overall work quality is spot on. Plus, we're all human, so we all make mistakes. I tried to offer him food/drink along the way to express my gratitude for his work, but all he would take was one Coke Zero and a hot coffee. Overall, my husband and I very much enjoyed working with Andy. He was professional, kind, considerate, and did an amazing job ALL ON XMAS EVE! Thank you, Andy!!! read more

While they seem to have good reviews and came recommended by neighbors, they were totally unresponsive to my phone message and request for quote through their website. I don't mind that service companies may be too busy for my job (or that it may not be big enough for them), but I appreciate and expect the courtesy of a response. I wasted a week waiting to hear back, before moving onto another highly recommended company that were incredibly responsive. read more

I met Andy as he was doing a sewer lateral job in Sunnyvale for a client. They were so happy with his service that I got his information to refer to my real estate clients. Since then, I have referred him to my clients and colleagues and always hear back how happy they were with his service. He is a professional, charges a fair price, does a great job and is pleasant to be around. I will continue to refer him to my friends, clients and colleagues. Ted Paulin, SF Peninsula Realtor read more

My water heater dead right after new year. I guess it's a great way to start a year?! I reached out Andrew on Yelp and messaged back right away and set up appointment within two days. While other plumbers/sales showed up giving us ridiculous price and one even can't tell the difference btw circulation pump and power vent, Andrew give a pretty reasonable price with great knowledge and quoted a good replacement model. Unfortunately we went with Home warranty company and end up in a nightmare. He will be my go to plumber if anything goes wrong in future. Thanks again. read more

Andrew was very accommodating by fitting me into his schedule when we had some clogged drains. He was very pleasant to work with. The drains were cleared in a timely manner. The only disappointment was that he didn't have a smaller tip with him to also clear another line while he was here. Andrew came back on a later day and finished clearing the remaining line. We appreciate that he was efficient and tidy. read more

Andrew is great! After a few days of trying to fix a plumbing issue ourselves, we weren't sure if we had resolved the issue, so we decided to give Andrew a call. He came out quickly and was able to assist and assure everything was back to normal. He was super accommodating, honest and efficient. I would highly recommend him to anyone looking for plumbing services! We will be calling him for future work! read more

I called Andy from Comet plumbing for changing a part of the sewage line which was getting clogged by Tree roots. They gave the best quote for the job. They were fast, efficient, took care of the city permits, and did a good quality job. My problem is fixed permanently now. read more

I could not be happier with the service Andy and his crew provided. Our entire system backed up in a Saturday and I called around that evening and Andy was able and willing to come over within the hour to diagnose. He was knowledgeable and knew right away what the problem was. He is then confirmed it with a camera sent through the pipes. Work to replace the main line between the house and the street was done within the week for what so far as I could tell by doing some quick research was a reasonable cost. He was professional and humble and very responsive. I would absolutely hire him again. Thanks, Andy! read more

Comet plumbing helped us with an emergency when other plumbers took a holiday. Then they helped again on a scheduled visit. Prompt, professional, effective and contentious, both times! read more

Great Company,Great Service Techs.I had a plumbing problem that required a plumbing contractor not some guy in a truck with a 50' power snake . The man from Comet was very professional Did not talk down to me as others have .Assessed the problem gave me a very reasonable estimate and preformed the work on time.And no extra charges!!!!! I would use this company again and do not hesitate and recommend it. Its nice to know there are still honest and reliable Plumber Contractors out there Bruce Houseman read more

I contacted Comet and Andrew responded very promptly. I needed my sewer line checked out with a camera to see if it needed replacement. I also wanted the drain in the garage sink checked out as well. Andrew gave me a quote over the phone and we fixed a time and he showed up promptly. He ran the camera and gave me very practical advice on next steps and followed it up with a quote the next day! He also jetted out my sewer line to clean out what he could. He also checked out the garage drain and informed me that he thought it was running fine and did not need to be rooted. Very satisfied with his service and would highly recommend him for your plumbing needs. read more

Had a backup on main sewage line while having a party on a weekend. Andrew came out to do a routine cleanout but my sewage line was damaged and had a severe discontinuity. Nothing I didn't already know. I've had at least one backup and cleanout every year. Each and everytime, a plumber shows me the tape. It had progressively gotten worse. I finally decided to get it fixed once and for all. He stayed through the day, was able to get one of his workers over and started digging. Did I mention it was raining and it was a Sunday. Was able to at least have it usable that same day. Very courteous and professional. Great communication. Offers fair pricing. Available on weekends. Definitely will use again for future plumbing needs. read more

I have used Comet Plumbing for my last two plumbing jobs. On each occasion it was an emergency. The first emergency we had was on the evening of valentines day, the night before we were leaving for a weekend without the kids. I called at least five plumbers. All promised to be there in under an hour; by the time I gave up on them and called Comet, it was after 11. Andrew came promptly, worked quickly, and didn't gouge me with after hours fees. Then this past weekend after a big party, the pipes backed up. I called Andrew right away, on Sunday after 6 pm. Andrew said he was booked all the next day, but when I explained that it was urgent, he showed up within half an hour. Again, no extra fees. I highly recommend him. He's a nice guy, too. read more

I called Comet Plumbing in desperate need of a plumber. Andrew was right on time, he said he'd be there within 30 min! We had a back up in our drain that flooded our kitchen. He promptly assessed the problem and proceeded to clear the drain and clear the blockage. He was very polite and explained the process he was going to take to fix the problem. His rates were good and reasonable. There was no extra charge for the late night visit either! I highly recommend him and will be calling him out for all my plumbing needs! read more

My husband managed to punch a gaping hole in our underground water main while gardening. Of course, this happens on the weekend. We panic as water gushes across our yard, the neighbor's yard and into the street. Called Comet and Andrew promised to be out in 1/2 hour. He came when promised, fixed the problem and abided by his original quote even though it took a bit longer than he originally thought (we had an unusual size of pipe). And it was much cheaper than I feared it might be! He didn't gouge us for emergency, weekend rates. He was kind, calm and a pleasure to deal with. read more

Yesterday - Friday night just got back from work stressed and I really wanted to chill out so I just went on WoW and downed a few beers + some shots with the online crew. During this time I went to the restroom and in my drunken stupor I must've done something stupid like flushed paper napkins or gift wrap or old google map printouts down the toilet. I flushed stuff but it came back up ick. I passed out in front of my comp thinking I'll get it checked tommorow but woke up a few hours later around 12:30am cause I realized my roommate was coming back tommorow morning - (#$*%(*$!. I needed to get my toilet fixed fast since this isn't the first time I've messed with the place and he's prolly gonna get REAL mad (possibly 'find a new roommate' mad o.O). I tried plunging it myself thinking I was a real man but I'm no plumber - some stuff came out but still the same issue :-(. To make a long story short I pissed and moaned to everyone on my instant messenger list until someone recommended I try a place called Comet. She said they do emergency jobs. I was thinking this crap (pun intended) was probably gonna cost me an arm and a leg but I really don't want my roommate knowing I messed up again so I went ahead and gave them a call. Good god it was like 1am but someone actually answered(!) and they were courteous and assured me someone would be on their way. Eventually Andrew came and worked on it for a bit before saying all done! THE BOWL WAS WORKING AGAIN! From the time they came in at the middle of the night to when they left was about 2 and a half hours. And get this - this is why I'm writing the review. THEY DID NOT CHARGE ME EXTRA FOR CALLING IN THE MIDDLE OF THE NIGHT 5 Stars for a wonderful business! HIGHLY RECOMMENDED. read more