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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 Service Flow Plumbing
Service Flow Plumbing
5.0(
23
)
Faucets, Fixtures and Pipes - Repair or ReplaceWater Heater - Install or ReplaceDrain Line Breakage - Camera Locate+19 more

Serving Ontario, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Definitely impressed Drew is an awesome human being and phenomenal plumber and drain specialist!!! We were having to go to our neighbors house to use the restroom as our sewer line was backing up for more than a week. Drew came out after hours and within hours of the inspection, he had me and my family sitting back in our own restroom in comfort. Not only did he get our sewer flowing but he did it with all new sew line installed. I will definitely be calling him for the future plumbing issues!!! We are forever grateful and will be a customer for life!!!! Call Service Flow plumbing!!!"
Sewer Main Valve
Sewer Main Valve
Sewer Main Valve
Sewer Main Valve
Sewer Main Valve

+81

Response time8 hrs
Response rate98%
21 neighbors recently requested a quote
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
)
Sewer Main - ClearDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+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%
1 neighbors recently requested a quote
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Plumbing questions, answered by experts

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?

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?

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?

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?

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?

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.