Top-rated plumbers.

Get matched with top plumbers in Ontario, CA

Enter your zip and get matched with up to 5 pros

TRUSTED BY ONTARIO, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon2k+
    Verified plumbing services reviews

Find Plumbers in Ontario

Avatar for J I G Plumbing
J I G Plumbing
4.9(
98
)
Water Heater - Install or ReplaceDrain Clog or Blockage - ClearGas Piping+6 more

Serving Ontario, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"The plumber spent a lot of time just trying to figure out the source of the hidden leak. He had a lot of patience. The quality of work was good as was the price. I would definitely hire them again."
Completed Install
Preparing new install
Completed Install
Completed Install
Completed Install

+8

35 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Dan Shop LLC
Dan Shop LLC
4.9(
16
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving Ontario, CA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Dany is very professional and responsible. He did such a great job with my plumbing repair. He has really good prices, and the fact that he finished the project in estimated time given was a plus to me! I have recommended him to friends and family. And now I recommend him here, if your looking for someone with experience and completion of your repairs he is the one to call."
Root & Fencing Footings Removal
Footings & Root Pullout
Footing Pull out
Repair P Trap
Repair P Trap

+16

Response time1 day
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Rooter Works Plumbing & Service
Rooter Works Plumbing & Service
4.9(
14
)
Drain Line Breakage - Camera LocateFaucets, Fixtures and Pipes - Repair or ReplaceSewer Main - Clear+4 more

Serving Ontario, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Emergency services offered

Warranties offered

"Roger, owner and plumbing, showed up on time...performed all requested and required repairs. He did a a great job performing the necessary repairs and cleaning up afterwards with charging a very fair price. I'm beyond happy with all of the completed work."
Lawn sprinkler flooding
Lawn sprinkler flooding
Lawn sprinkler flooding
Lawn sprinkler flooding
Lawn sprinkler flooding

+6

Response time12 hrs
Response rate87%
4 neighbors recently requested a quote
Avatar for DrainExperts.com
DrainExperts.com
4.9(
23
)
Water Main - Install, Replace or RepairDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+7 more

Serving Ontario, CA and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"a slave line off the water main broke underground. This occurred after hours and rendered me waterless. I entered my job in Home Advisor and Steel Called me back within 10 minutes. Steel arrived on time and repaired the break within 2.5 hours better then the original piping. Thank You Steel Plumbing."
Drain Cleaning
Commercial Drain Cleaning
Commercial Drain Cleaning
Commercial Hydro jet Drain Cleaning
Commercial Drain Cleaning

+16

Response time3 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 1052
Plumbing questions, answered by experts

Hard water in Ontario accelerates sediment buildup in water heaters and degrades toilet seals or faucet cartridges. You will also experience issues with under-slab copper pipes, which crack due to seismic activity and shifting clay soils. Additionally, intense sun exposure damages irrigation backflow preventers. Finally, mature tree roots infiltrate and separate older clay or cast iron sewer laterals, requiring prompt professional plumbing repairs.

Helpful?

Simple plumbing projects like water heater replacements take just one day of active work. Complex jobs, such as a whole-home repipe, require two to five days of labor. However, you must account for local permit processing and required inspections in Ontario. These administrative steps add several days to a few weeks to your timeline. Extreme summer heat also shifts work to early morning hours, extending the schedule.

Helpful?

Upgrading your plumbing removes mineral scale buildup, which restores consistent water pressure and improves tap water taste. Resolving slab leaks stops mold growth and prevents severe flooring damage. In CA, reliable water supply lines also ensure your evaporative coolers function perfectly during extreme summer heat. Furthermore, fixing leaks and installing efficient fixtures significantly reduces your monthly utility consumption, providing immediate financial relief and daily comfort.

Helpful?

Watch for reduced water pressure or chalky deposits at joints, which indicate past plumbing work ignored Ontario's hard water. You should also check for stress fractures following seismic activity. Additionally, look for ground settlement or soggy yard patches caused by hot, dry weather shifting the soil. Finally, unpermitted alterations will fail to meet CA standards and require professional replacement to ensure your home remains safe.

Helpful?

Check your water meter during periods of no use; any dial movement confirms a hidden leak. You must schedule plumbing service if you receive high-usage alerts or annual backflow testing notices from your utility provider. Furthermore, homes built before 1975 in Ontario require immediate pipe inspections. Finally, visible scale on fixtures or reduced water flow indicates hard water damage demanding professional attention.

Helpful?

The Ontario, CA homeowners’ guide to plumbing services

From average costs to expert advice, get all the answers you need to get your job done.