Expert Advice On Improving Your Home

10 Best Plumbers in Diamond Bar, CA

Get matched with a top local pro.
Join more than 640 people who have gotten a free quote in the past week.

Written By Bradford Cuthrell

Last Updated April 2024

Plumbing problems aren't an easy job to fix on your own, but left unaddressed, they can cause more expensive damage. Diamond Bar homeowners frequently struggle with cracked and ruptured pipes due to contracting soil, a side effect of the dry weather.

We've built this guide to Diamond Bar's best plumbers to help you find the best professional for your job.

Top 10 Best Plumbers in Diamond Bar

Plumbing Method | Emergency Plumbers Chino

Plumbing Method | Emergency Plumbers Chino Logo

Our Rating

User Rating

Write a Review
15944 Ellington Wy, Chino Hills, CA 91709 (844) 529-7473 plumbingmethod.com

Educates customers

Timely service

Transparent pricing

Free quotes

Great customer service

Services Offered

Emergency calls
Residential plumbing
Septic tank
Trenchless
Fixtures
Backflow testing
Garbage disposal
Sewers
Gas pipes
Water heater
Inspections
Drains
Remodeling
Camera inspections
Toilets
Repiping
Water treatment

Alpine Plumbing & Rooter

Alpine Plumbing & Rooter Logo

Our Rating

User Rating

Write a Review
462 Borrego Ct Unit A, San Dimas, CA 91773 (626) 598-1813 alpineplumbingandrooter.com

Free quotes

Great customer service

Educates customers

Transparent pricing

Services Offered

Drains
Emergency calls
Fixtures
Water heater
Camera inspections
Backflow testing
Sewers
Septic tank
Gas pipes
Repiping
Toilets
Water treatment
Residential plumbing
Inspections
Garbage disposal
Trenchless

McLay Services, Inc.

McLay Services, Inc. Logo

Our Rating

User Rating

Write a Review
2036 Arrow Hwy, La Verne, CA 91750 (909) 392-2202 mclayservices.com

Great customer service

Educates customers

Timely service

Free quotes

Transparent pricing

Services Offered

Emergency calls
Toilets
Fixtures
Camera inspections
Sewers
Leak repair
Inspections
Water treatment
Backflow testing
Drains
Water heater
Residential plumbing
Remodeling
Repiping

Plumbing Buddies

Plumbing Buddies Logo

Our Rating

User Rating

Write a Review
520 E Rte 66, Glendora, CA 91740 (626) 838-4016 plumbingbuddies.com

Timely service

Educates customers

Free quotes

Transparent pricing

Great customer service

Services Offered

Drains
Septic tank
Remodeling
Inspections
Gas pipes
Garbage disposal
Emergency calls
Residential plumbing
Toilets
Repiping
Camera inspections
Water heater
Sewers

The Drain Doctor | Plumber Covina, CA | Drain Cleaning, Tankless Water Heater and Sewer Repair, Emergency Plumber

The Drain Doctor | Plumber Covina, CA | Drain Cleaning, Tankless Water Heater and Sewer Repair, Emergency Plumber Logo

Our Rating

User Rating

Write a Review
527 N Azusa Ave #354, Covina, CA 91722 (626) 605-2129 thedraindoctorcovina.com

Timely service

Educates customers

Great customer service

Free quotes

Services Offered

Inspections
Toilets
Garbage disposal
Trenchless
Sump pump
Water heater
Camera inspections
Sewers
Repiping
Water treatment
Gas pipes
Fixtures
Residential plumbing
Emergency calls
Drains

Ace Pelizon Plumbing

Ace Pelizon Plumbing Logo

Our Rating

User Rating

Write a Review
138 E Badillo St, Covina, CA 91723 (626) 565-2064 acepelizon.com

Free quotes

Great customer service

Educates customers

Transparent pricing

Services Offered

Residential plumbing
Water heater
Camera inspections
Sewers
Emergency calls
Water treatment
Repiping
Trenchless
Septic tank
Gas pipes
Drains
Inspections
Backflow testing

Graham Plumbing and Drain Cleaning, Inc.

Graham Plumbing and Drain Cleaning, Inc. Logo

Our Rating

User Rating

Write a Review
272 Gemini Ave, Brea, CA 92821 (888) 828-3872 grahamplumbing.net

Timely service

Transparent pricing

Free quotes

Great customer service

Educates customers

Services Offered

Toilets
Sewers
Remodeling
Residential plumbing
Camera inspections
Inspections
Repiping
Gas pipes
Fixtures
Water heater
Trenchless
Drains
Emergency calls

Hedrick & Young Plumbing

Hedrick & Young Plumbing Logo

Our Rating

User Rating

Write a Review
13309 Central Ave Unit 2, Chino, CA 91710 (909) 200-6776 hedrickandyoungplumbing.com

Free quotes

Great customer service

Transparent pricing

Services Offered

Fixtures
Repiping
Toilets
Emergency calls
Sewers
Gas pipes
Inspections
Water heater
Residential plumbing
Camera inspections
Leak repair
Garbage disposal
Water treatment
Drains

Brea/Orange County Plumbing Heating & Air Conditioning

Brea/Orange County Plumbing Heating & Air Conditioning Logo

Our Rating

User Rating

Write a Review
340 N Orange Ave, Brea, CA 92821 (714) 529-1034 ocplumber.com

Educates customers

Timely service

Great customer service

Transparent pricing

Services Offered

Backflow testing
Fixtures
Gas pipes
Drains
Water heater
Toilets
Sump pump
Repiping
Garbage disposal
Water treatment
Inspections
Residential plumbing
Sewers
Emergency calls

Service Lion Plumbing Heating Air Electric

Service Lion Plumbing Heating Air Electric Logo

Our Rating

User Rating

Write a Review
245 Viking Ave, Brea, CA 92821 (657) 331-5152 callservicelion.com

Great customer service

Free quotes

Educates customers

Transparent pricing

Services Offered

Inspections
Camera inspections
Drains
Water heater
Water treatment
Residential plumbing
Emergency calls
Trenchless
Gas pipes
Repiping
Pool and spa
Sewers
Sump pump
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on plumbers to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

What Services Do Diamond Bar Plumbing Companies Offer?

Leak Repair

Leaking pipes that aren't addressed promptly can increase your water bills and harm the nearby area. A plumber can locate the exact point of the leak and resolve it directly at that spot.

Clog Repair

Blocked pipes and drains can cause backflow, property damage, and flooding. Local plumbers can clear obstructions and suggest ways to stop their recurrence.

Pipe Replacement

Pipes become damaged over time. If they show signs of leakage or warping, they might need replacement. A plumber in Diamond Bar can evaluate your pipes' health and swap out worn and broken components with new, durable materials.

Fixture Installation

Some fixtures wear down with age and require a swap out. Other times, you may replace them as part of a renovation. A plumber can install something as simple as a new faucet or as complex as a new toilet, sink, shower, or bathtub.

Gas Repair

Select plumbers can identify and repair gas leaks from household appliances such as ovens and radiators. If you smell a gas leak, leave the premises without delay and call your utility company without delay.

Annual Inspections

Plumbing systems must withstand component damage from consistent daily use. Protect your home's pipes by arranging annual checkups from an expert Diamond Bar plumber. Inspections can uncover problems while they’re still incipient, and spotting and repairing them early may lower your long-term repair bills.

Emergency Services

Overflowing toilets and burst pipes rarely happen at convenient times. That's why many plumbers provide urgent repair services to handle these unexpected issues. Emergency fixes are usually more expensive than planned repairs, but prompt attention is crucial to avert the possibility of further property damage.

Cost of Plumbing Services in Diamond Bar

Diamond Bar plumbers typically charge between $102 and $339 for installation and repair work. Emergency jobs will almost always incur additional charges. Use the table below for specific cost data on common plumbing services in Diamond Bar.

ProjectEstimated Cost
Clog and drain clearing$72 - $359
Leak repair$108 - $324
Burst pipe repair$779 - $3,117
Faucet installation$129 - $516
Toilet installation$289 - $771
Pipe rerouting$602 - $1,289
Main water line repair$404 - $3,229
Water heater repair$117 - $584
Water heater installation$771 - $1,928
Water softener installation$204 - $510

Check Licensing and Insurance

The California Contractors State License Board issues state C-36 licenses to Diamond Bar plumbers. Business owners must meet all experience and exam requirements. To protect yourself against damage or accidents, you should also ensure your plumber is bonded and insured.

Check Union Status

You don't necessarily have to hire a union plumber, but choosing one means that your technicians tend to have passed stronger training and vetting standards.

Assess Their Experience

Choose a plumber with a long track record of local work. Smaller companies based in Diamond Bar will often be more familiar with residents' most common plumbing complaints. More experience also means the team could remedy your situation faster.

Read Customer Reviews

Visit sites like the Better Business Bureau (BBB) and Google Reviews to read customer reviews on local plumbers. You can find out more about how companies handle complaints, the quality of their work, and the strength of their customer service.

Compare Multiple Quotes

Request free estimates from multiple different plumbers to get an idea of local market rates. Avoid companies that offer unusually low or high rates.

Ask About Warranties and Guarantees

Most Diamond Bar plumbers back their work quality with satisfaction guarantees. If the issue reappears within a given time period, you could have remediation work done for reduced or no cost. New fixtures and appliances like water heaters and toilets might also carry manufacturer warranties.

Frequently Asked Questions About Plumbing in Diamond Bar, CA

A few common plumbing problems that professionals can fix include:

  • Clogged drains
  • Lack of hot water
  • Low water pressure
  • Leaks and water damage
  • Running toilets
  • Septic and sewer line issues

You're not expected to tip your plumber. You may offer a tip for excellent service, but first, make sure the company you've chosen doesn't forbid its employees from accepting them.

You might be able to unclog a drain or fix a running toilet on your own. However, if the issue recurs or if you can't determine the cause, it's best to call a professional plumber. Plumbing problems could cause significant damage if ignored or improperly addressed.

Many plumbers offer both online and over-the-phone scheduling. For emergency services, you'll need to call.

Yes. If a plumber's license allows them to do so, they can repair leaky, unusual-sounding, or out-of-order water heaters. We also recommend getting an inspection if your water heater is more than 8–12 years old, as issues are more likely to happen with age. Water heater components can pose surface temperature and fire hazards, so we recommend leaving repairs to the pros for your safety.

Other Diamond Bar, CA Home Services