D & R Plumbing
Company Overview
Professional factory setup of Takagi & Rinnai tankless water heaters.
Tenant improvements, industrial, residential, and commercial services.
Plumbing repair and service for both commercial and residential properties.
Sales and service of backflow prevention devices, including testing and repairs.
LA County, San Bernardino County, and AWWA certified backflow testing services.
Fixture and faucet sales along with installation.
Gas line repairs and installations.
Repair and installation of water lines.
Pressure regulators.
Replacement of water heaters.
We serve Chino, Chino Hills, Ontario, Montclair, Claremont, Pomona, Rancho Cucamonga, and surrounding areas.
San Dimas, Glendora, Covina, West Covina, Industry, Rowland Heights, and nearby regions.
Active member of the Chino Valley Chamber of Commerce.
Since 1955, our family-owned company has been in operation.
We spent over 35 years in the East San Gabriel Valley before moving to Chino Valley in 1994.
D & R Plumbing, Inc. is dedicated to providing honest and accurate plumbing evaluations.
This dedication has kept our company strong for 55 years.
We employ journeymen, not temporary technicians.
Our plumbers are highly educated and experienced in their specialties.
Whether big or small, we approach every job with assurance.
We will not push you into replacing or repairing what isn’t needed.
Our construction projects pass inspections easily because they are done right the first time.
We pride ourselves on quality craftsmanship, integrity, and dedication to customer satisfaction.
Mike, a master plumber and plumbing contractor from a family of plumbers, has deep industry knowledge.
He began assisting his father and accompanying him on service calls during summers as a child.
His father managed commercial accounts at that time.
While in high school, Mike gained expertise in backflow prevention and cross-connection.
In 1982, he received his LA County tester certification while handling major corporate accounts.
Following college, he entered the local union's apprenticeship program for plumbers and steamfitters.
He completed four years of schooling, training, and testing to become a dual-carded plumber and steamfitter.
His dual certification reflects his proficiency in all areas of both trades during his apprenticeship.
This experience gives Mike an advantage in today’s market, as he has been a skilled journeyman for over 20 years.
He quickly identifies problems and responds appropriately every time.
Business Services
- Bathroom remodeling
- Bathtub installation
- Gas line installation
- Gas line repair
- Kitchen remodeling
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Remodeling
- Shower installation
- Water heater installation
Business Location & Hours
Mon: | 8:30 AM - 5:00 PM |
Tue: | 8:30 AM - 5:00 PM |
Wed: | 8:30 AM - 5:00 PM |
Thu: | 8:30 AM - 5:00 PM |
Fri: | 8:30 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Very helpful for tankless water heaters!
I just got off the phone with Mike as I am having problems with my tankless water heater. He was super helpful on the phone and gave me a couple of things to try BEFORE he comes out to fix my problem.
I appreciate the help and would trust this guy with fixing my plumbing.
Thanks Mike!

I called Takagi because we were having problems with our tankless and they recommended Mike. I couldn't be happier. He knows what he is doing, he is honest and he solved several other problems while he was here. I was most impressed that he continued to follow up until the problem was fixed to our satisfaction. It was not a straightforward issue and it required several visits to get it right. Mike didn't give up and now our system is better than ever.

I have left phone messages and web site messages for 3 days without receiving a call back or an email. it makes you wonder if they are even in business. What ever happened to common courtesy and returning a phone call.

Mike at D & R Plumbing was recommended to us and has done/repaired a couple of fairly big jobs for us in the past couple of years and has done a great job, even staying late when a pipe cracked in our front yard. His response time and rates are exceptional. I recommend him to anyone who needs a plumber in our area.

I've used Mike with D&R for plumbing needs at work and home. He always responds quickly and takes care of our needs in a professional manner. I would definitely recommend him for either business or residential plumbing needs.

Our company has been associated with Mike for over 4 years for the majority of our plumbing needs. Mike, among the major projects that he has tackled for us, repaired an industrial capacity backflow device and an aging septic tank. Almost all of the work is performed by Mike personally so the quality of workmanship is never compromised. Whether a project ranges big or small, we place our full trust in Mike.