We are a small, family-owned business that values honest and reliable work. We make every effort to provide on-time and on-budget service, which is why we succeed with our mostly referral based business. Our company is made up of local natives who know the area and, more importantly, know how to get the job done. we offer trenchless sewer and more
Let us help you with your projects ranging from simple installations to complete remodels.
Business highlights
19 years of trusted experience
LGBTQ+ Friendly
Se Habla Español
Family Owned & Operated
Emergency Services Offered
Eco Friendly
Services we offer
Repiping, bathroom remodeling, water heaters, gas lines, remodels, waterlines, commercial work, repairs, sewer line replacement, and consultation.Sewer repairs, replacement,drain cleaning and video inspection services, trench free, copper repiping, pex, all phases of plumbing
Bought new washer/dryer?installer could not install because of corrosion of old valves. The hot water valve was leaking after the installer tried to shut off the water. Contacted Dempster Plumbing and explained issue. They had plumber out within an hour. The plumber was able to get the valve shut as a temporary measure and recommended replacing the valves and box. I was able to schedule for 9am next morning and job was done by 11:30. Very happy with service and can't wait to get the washer/dryer installed.
Description of Work: Replaced Valves and Drain in Laundry Room
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$650
Hongying S.
04/2014
5.0
plumbing
+ -1 more
They replaced a piping in the kitchen. Their work is pretty smooth and clean. I think they're the best, and the price is okay.
Description of Work: I used Dempster Plumbing, for my kitchen repair.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$130
Michael R.
03/2014
4.0
plumbing
+ -1 more
I got quotes between 9,000 and 20,000 and everything that came through on AL came at at least 15,000.
Description of Work: Provided estimate.
Rating Category
Rating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Tom G.
12/2013
5.0
drain pipe, plumbing
+ 0 more
Bill's crew showed up on time as scheduled. They were friendly, efficient, and very skilled at what they did. They determined the location of the damaged pipe, carefully dug it up around several obstacles, and replaced it with new pipe and a new clean out. They showed me what they were doing, and explained what they were doing at each stage of the work. When finished, they cleaned up and left the site as if nothing had been disturbed. I feel the price was very fair for the size of the crew, the length of time for the project, and for the tools and materials required. I will definitely use Dempster Plumbing again when needed, and I will highly recommend them.
Description of Work: They did a video inspection of the exterior drain line prior to starting. They then dug up approximately 25 feet of damaged drain line and replaced it with new pipe.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$1,700
Lisa D.
01/2013
5.0
plumbing
+ -1 more
Bill came out to install a compression valve for my dishwasher. I've kept his number all of these years because I knew I'd use only him to repipe my house when the time came. I'd recommend him to anyone, and actually have. He'd be the only plumber I'd use in this area. ***Update: Bill's team has been here repiping my house and they are fantastic. Everyone on his team is polite, professional, knows their job, and very good at explaining the next step and what is going to happen. I knew that Bill would be the only one I'd go with, but now? There is no other I'd go to, or actually go to for a reference on any other trade. I completely trust Bill and his crew. I did get an estimate from another plumber which came to the same price, but I already knew I'd go with Bill even if his price was higher. It's the honesty and integrity and knowledge of his trade that I was more interested in. I just wish he had his hand in more trades than plumbing so he can do it all for me. Valerie answers the phone and does the scheduling, she was patient with me rescheduling a couple of appointments due to my work schedule and very professional and friendly.
Description of Work: A few years ago Bill came out to install a compression valve so I could have a dishwasher installed. He was informative, educated, knowledgeable and very professional. Today I am having my home repiped. I can't say enough about him and how easy he has made this process for me.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$4,800
Kevin S.
12/2012
5.0
drain cleaning, remodeling, home remodeling, plumbing
+ 2 more
Brian shows up on time and is professional. The work is done great.
Description of Work: Brian from Dempster moved our kitchen sink drain pipe and one gas pipe as part of our kitchen remodel.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$500
Joyce S.
11/2012
4.0
plumbing, water heater repair
+ 0 more
Overall, the project went fairly well and the crew was nice. The piping seems to have been installed well and I haven't seen any leaks. At the time, my main complaint was that they didn't check their work when they turned the water back on at the end of each day. They would turn the water on, and then leave. One evening I discovered that hot water was free-flowing into the toilet and I couldn't shut it off. Another evening I discovered that a new valve they'd installed under the sink was defective and it dripped all night - I had to put a bucket under it.Other issues that kept me from giving them an "A" rating: - The pipe to the hose bib was installed on the outside of the house instead of inside the wall where the previous pipe had been. The pipe running down the wall on the outside of the house looks crappy. - They promised to return to re-hang the bathroom medicine cabinet after the wall dried, but they did not come back. After a week, I called about re-hanging the cabinet because it's too heavy for me, but they didn't respond. - Minor sloppiness such as the tips of screws poking through the bathroom wall, a loose kitchen cabinet door, and cabinet molding that popped back off.I originally selected Dempster Plumbing because I was considering using them for the remodel of two bathrooms. However, I want the bathroom remodels to be meticulous; after my repipe experience, I won't consider them for the bathroom remodels.I learned a lot from this experience and I would only consider using them for plumbing work again if I were able to thoroughly check their work before they left.
Description of Work: Whole house copper repipe and water heater replacement. My house is on a slab, and piping runs through the attic and down interior walls.
Rating Category
Rating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
4.0
punctuality
5.0
Yes, I recommend this pro
$6,435
Laura L.
06/2012
5.0
gas leak repair, remodeling, home remodeling, plumbing
+ 2 more
Bill arrived when expected to provide estimate. Estimate was reasonable and in line with/towards the lower half of other estimates I received, hired Dempster plumbing because they could do the work to match my schedule. Crews showed up on time to perform work and work was finished within time frame given. They pointed out any issues they ran into (e.g., bathroom floor not quite level meant shower pan was not quite level, but still stable and able to drain well). Bill checked in on the job to see how the crews were doing and to check up on work. Crews were courteous and cleaned up after themselves. After rough plumb-in, when we found an issue with the new shower valve recirculating the water so no hot water was getting to another part of the house, they came right out to fix it. After finish plumbing was done, they told me to keep an eye out for leaks during the first couple of weeks, and came right out to fix a couple of leaks (faucet head, dishwasher hose) that occurred.
Description of Work: Completed rough in plumbing for kitchen remodel, including moving sink, installing new water-line box for fridge, and adding new gas line to replace eleccook top.Completed rough in plumbing for master bath remodel, including repair/replace shower pipe, install shower valves and pan, replace and slightly relocate plumbing for two sinks in vanity.Completed finish plumbing in kitchen, including connecting new gas line to cooktop, installing new dishwasher, and kitchen sink.Completed finish plumbing for master bath, including installing shower head and handle, connecting new sinks and faucets.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Reg R.
05/2012
5.0
drain pipe, plumbing
+ 0 more
They were able to come quickly, price was reasonable and the result was very good.
Description of Work: I used Dempster Plumbing in August of last year. We had sewer pipe that had rusted through so they through cut it out and put a new pipe under the house.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$1,800
Rajaram S.
04/2012
4.0
plumbing
+ -1 more
They are very courteous and responsible. They are good. The overall experience was good. They were punctual, responsible, and professional. The price and quality of work were good. They came out when they said they would. I would use this provider again.
Description of Work: They cleaned up a sewage line.
Rating Category
Rating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$250
Wilson A.
03/2012
5.0
plumbing
+ -1 more
I spoke with 6 different plumbing companies before I chose Dempster Plumbing. Brian and Garth did a great job. Even though they were not the cheapest, I value their quality, knowledge and experience.Also Valerie was very professional, demonstrating good listening and communication skills. Bill, you have a high caliber team. I value a long term relationship.Thank you,Wilson
Description of Work: Installed an exterior cleanout per code specifications
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$879
dave M.
03/2012
5.0
drain cleaning, plumbing
+ 0 more
We found Dempster on Yelp three years ago, and contracted them based on all the positive reviews. The first project was a badly clogged drain line shared by two sinks. It turns out that it had been poorly built originally, then mangled when the previous owner tried to repair it. Dempster's solution was to cut the cast iron pipe and rebuild the trap to make it easy to clean in the future. They did the work quickly and for a reasonable price. That drain, which used to require snaking every year or so, has run clear ever since. I called them again a week ago when my main sewer line clogged for the first time since we bought the house 17 years ago. It turns out the clean-out valve is in the too-small crawl space under the house, unaccessible to rooter machines. Once again, poor construction practice. Dempster extended the clean-out valve to the outside of the house, which required working in the crawl space, then quickly cleared the drain from outside.
Description of Work: Two services involving ripping out old plumbing: rebuilding a botched drain shared by two sinks, and extending our primary clean-out valve from under the house to make it accessible.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$320
Sonia U.
09/2011
5.0
plumbing
+ -1 more
WOW, I am really impressed! For the first time in many years I am able to fill my pool and run my dishwasher or shower at the same time. Dempster plumbing did a full copper repipe of my home and it made all the difference. There were many holes cut into the walls and all the work I witnessed in the walls of my home was really well done and professional. The holes in the walls were repaired and finished ready to paint. All in all in was an excellent job and well worth the $10,300. I only wish I had done it sooner. Thank you Bill Dempster and crew.
Description of Work: Complete re-pipe of the house and mainline from water meter. Installed new faucets and shower valves and heads.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$10,300
Charles V.
08/2011
5.0
plumbing
+ -1 more
They were very professional. They explained the work needed and they delivered what they promised. We were very satisfied with the work they did and would definitely hire them again.
Description of Work: Dempster Plumbing replaced our main line and all of the pipes under our house.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$5,000
Therese C.
05/2011
5.0
plumbing
+ -1 more
They did an excellent job, and I was very pleased with their work. They were accommodating and worked long hours to get the job done; they were very professional about it. I trusted them in my home. They were all throughout the house, and they were all nice, courteous and considerate guys. It is not often that a house is re-plumbed, so I have nothing to compare their work with, but I was completely happy with what they did and the way they did it. Their price was competitive, and the quality was excellent. I have recommended them to others. I would rate them highly and would use them again in the future if necessary.
Description of Work: I used Dempster Plumbing to re-plumb my house.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$12,000
ADRIANNE M.
01/2011
5.0
plumbing
+ -1 more
I like them a lot. I originally chose them because they were ranked really high and I chose them secondly because they did the first job very well. They came out spur of the moment when my plumbing was leaking and spilling water all over the floor. They fixed everything. They know what they are doing. I had asked them for a hole new toilet insert and they put in just one part, I think it would work better had they done what I asked. They are very punctual.
Description of Work: My plumbing was leaking and spilling water all over the floor and they fixed that.
Rating Category
Rating out of 5
quality
4.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$100
Jeannie K.
07/2010
2.0
plumbing
+ -1 more
It is a family-owned business. They tried to do a couple of things with a faucet and do some other work. Also, they created more problems than they solved. They came with a young Hispanic, who was the owner?s son. He was totally unprofessional. They didn?t have the right tools and they had a socket that had a leak in it. They had to go out to the car to get the right tools. They cleaned some things, but they didn?t realize that there was water in the sink. It kind of fell through the under the sink area. They didn?t have towels or paper towels. They ended up breaking one of the plugs of the sink. So, they tried to make it right. However, after 45 minutes, they realized it was plastic and couldn?t do much. They told me that I could replace it as it was only $3. So, I asked them as to why they had spent 45 minutes, at $100 an hour, to solve a $3 problem. They were nice, young guys. I called and left a note that I was dissatisfied with their performance. The woman they had hired to deal with the customers was wonderful. She was outstanding. She asked me as to how they could make it up to me. I told her that they had tried fix my kitchen sink, but something had happened with the refrigerator. So, I had to hire somebody else and that I wanted my money back. I told her that I had hired them to fix three problems, but they didn?t solve any. Infact, they had created four additional problems. They returned the money. Later, the owner called me and asked me if I had had any problems with his son. He explained to me that he was a very reputable guy. He didn?t seem very interested in learning what my problem was. He asked me to get the job done by someone else. I liked the fact that they returned my money, but I didn?t like the owner?s response. They had charged $110 for the job, which was returned to me. I felt that the two young plumbers, if provided with correct training, would do greatly. They were very decent. I will not use this company again in the future.
Description of Work: I used Dempster Plumbing, a month ago.
Rating Category
Rating out of 5
quality
1.0
value
4.0
professionalism
1.0
responsiveness
5.0
punctuality
5.0
$110
Michelle .
06/2010
5.0
plumbing
+ -1 more
He followed up with me after the work was completed and said he found someone who could do another project for me. The leak caused damage to my ceiling, and that is who he found for me. It was great customer service to see that he went the extra mile to help me out.
Description of Work: He repaired a leak in my upstairs bathroom. I was told there were 2 solutions, and he was able to come up with a very reasonable 3rd solution.
Rating Category
Rating out of 5
quality
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Bradley M.
04/2010
5.0
plumbing
+ -1 more
Bill arrived in less than half an hour and did very professional job. He also noticed an unrelated leak in a drain line, very observant. Work was completed in less than an hour.
Description of Work: I had a problem with a plumbing modification I was doing. Bill capped off a pair of water supply lines.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$85
Michele B.
04/2010
5.0
plumbing
+ -1 more
It was a very professional crew that was very clean and organized. It is a family business and they seemed to care about the quality of their job. I woud absolutely use them again.
Description of Work: Dempster Plumbing installed a whole house water filter and softener system.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$600
NANCI I.
04/2010
5.0
water heater repair
+ -1 more
It was pretty good. The day that the guy came to give the estimate we thought was a little bit high. After discussing he was able to lower his price. He came the next day and worked to complete the job. It was hailing so we were impressed with his dedication to his work
Description of Work: They installed a water heater.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$1,900
BALA B.
02/2010
5.0
plumbing
+ -1 more
He was very professional and courteous and completed the job as per the estimate. He charged a nominal price for the job. I'm one very happy customer :-)
Description of Work: Someone's car backed into our pipe (car wash) and broke it. The owner of the company came within an hour as promised. He estimated and told me how much it would take the issue interms of labor as well as parts.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$150
Nancy F.
01/2010
5.0
plumbing, water heater repair
+ 0 more
I first found Dempster Plumbing on Yelp, then confirmed good reviews here on Angies List. Bill was on time for the appt for the estimate. He gave me a thorough explanation of all my options for the job and what his recommendations were and why. Later that day he called with his estimate and followed that with an email with all the details. I asked a few more questions and scheduled the job for a few days later. On work day Bill and his gang arrived at the time he promised. He had estimated 2-3 days of work, but when he got there said he was going to try to do it all in one day. And, holy cow, he (they!) did. It was like Extreme Makeover - Home Edition. There were at least seven workers plus the electrician plus the drywall guy. Seven! It was wild, but amazing. Those guys worked together and got it knocked out in record time with skill and efficiency. By 4pm I had a new water heater, new pipes, and the drywall guy was patching up. Granted, my house is a small single story, so it wasn't the biggest job on earth but I was still impressed. They left the house and garage neat and everything in good shape. Bill obviously knows his stuff and he obviously has the resources to get a job done. I've already recommended him to others.
Description of Work: Remove old water heater; install new tankless water heater in a completely new location; repipe whole house in copper; rearrange plumbing in laundry room
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$5,400
Gina W.
06/2009
5.0
plumbing
+ -1 more
I called and left a message. He called back promptly and came by to give me an estimate. I was very concerned about the cost and he was easy to work with. He gave me an estimate and description of the job. I said to go for it. He went and got the needed parts and replaced the drain pipe quickly and efficiently. He was very nice and I recommend him.
Description of Work: I needed a drain pipe replaced in my shower. I'm having it re-tiled.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$144
Daniel R.
01/2009
5.0
plumbing, water heater repair
+ 0 more
I found Bill Dempster though a recommendation from a co-worker, and after reading the existing reviews on Angie's List decided to talk to him about my re-pipe needs. He was quickly able to set up and appointment, and gave me what I believe to be a reasonable quote for the work. He and his team did a wonderful job with the re-pipe, and quickly corrected the few problems that were discovered (one caused by an earlier partial repipe of the home). They kept the site clean, both by tarping all areas of the house they entered and by sweeping the garage after every day. The drywall they had to remove for their work is almost surgical, and even though they were not contracted for the drywall repair, they replaced all but one piece that was too damaged to re-use (prior water damage in the bathroom). They made sure I had water every night, and even repaired my dryer vent for me while they were under the house. They also replaced a shower valve at my request and neatly dressed the water filter lines under the kitchen sink. I highly recommend Bill and his company, and would definitely use him for any plumbing needs in the future.
Description of Work: Partial re-pipe of single story home from galvanized to copper, installation of a tankless water heater, and re-plumbing of an existing water softener
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
Plumbing,
Kitchen and Bath Remodeling,
Drain Cleaning,
Water Heaters,
Natural Gas Lines,
Drain Pipe Installation,
Sewer Cleaning,
Wells and Pumps,
Water Filtration and Softening,
Septic Systems,
Excavating
FAQ
Dempster Plumbing is currently rated 4.6 overall out of 5.
Sunday: Closed
Monday: 9:00 AM - 5:00 PM
Tuesday: 9:00 AM - 5:00 PM
Wednesday: 9:00 AM - 5:00 PM
Thursday: 9:00 AM - 5:00 PM
Friday: 9:00 AM - 5:00 PM
Saturday: Closed
Dempster Plumbing accepts the following forms of payment: American Express,Check,Discover,MasterCard,PayPal,Visa
No, Dempster Plumbing does not offer a senior discount.
Yes, Dempster Plumbing offers emergency services.
Yes, Dempster Plumbing offers warranties.
Dempster Plumbing offers the following services: Repiping, bathroom remodeling, water heaters, gas lines, remodels, waterlines, commercial work, repairs, sewer line replacement, and consultation.Sewer repairs, replacement,drain cleaning and video inspection services, trench free, copper repiping, pex, all phases of plumbing