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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified french drain services reviews

Top-Rated French drain pros in Lathrop - Updated Nov 2026

Avatar for Mainline Plumbing Inc.
Mainline Plumbing Inc.
4.5(
210
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+2 more

Serving Lathrop, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"Mainline Plumbing sent Carmelo to my home to snake out the kitchen sink, and capped the outside pipe. Carmelo was on time, professional, very friendly, and finished the job in a timely manner. Thank you Mainline Plumbing, you guys are the BEST!!!"
Drain Clearing
Garbage Disposals
Plumbing Repairs
Tankless Heaters
Leak Detection

+2

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Top Tier Plumbing Inc.
Top Tier Plumbing Inc.
4.6(
41
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera Locate

Serving Lathrop, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I called Top Tier plumbing after my son broke the shower handle. Taylor the owner was in the area and able to come by the same day and replace the broken internal plastic piece. Quick Response with Friendly and Efficient Service all for a GREAT price!"
Reset existing toilet
Plumbing upgrades
Plumbing upgrades
Plumbing upgrades
Water heater installation

+14

Response time3 hrs
Response rate96%
43 neighbors recently requested a quote
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French Drains FAQs, answered by experts

You may have a clogged gutter. Downspouts can also clog if your gutter collects too much debris. Hire a professional gutter cleaner, and if you still have problems, install a gutter guard (which prevents debris from entering your gutter system) and a downspout extension (which helps drain water further away from your foundation, so it doesn't pool near your house). Follow these tips to keep your gutter downspouts clean.

The cost varies from $150 to $600, depending on the severity of the clog, pipe access, and required equipment.

A bit of water in the bowl can help unclog a toilet, especially if you're using a plunger. However, if the bowl is full to the brim, you'll need to strap on gloves and remove some of the wastewater in a cup or container so it doesn't overflow when you try to unblock the pipe. If you're concerned about it filling further, manually close the flapper in the toilet tank or turn off the water supply to the toilet.

If methods like hot water or a plunger don’t work on your clogged drain, you can snake your drain to dislodge the plug. This can be a messy process, taking some physical effort and additional time over the other drain-clearing options. You can purchase a drain snake at a hardware store and choose from handheld options or those attached to a drill. Just work slowly, and be ready to call a plumber if you’re unable to reach the clog from your drain or P-trap.

Usually it’s fine to leave a toilet clogged overnight, as long as it’s not close to overflowing. In some cases, the extra time may give the clog time to work itself out. For example, if it’s caused by an excess of toilet paper, letting it sit could result in the clog dissolving and you may be able to simply flush it away by the time you wake up. 

Only let it sit though if you have more than one toilet in the home.

The Lathrop, CA homeowners’ guide to french drain services

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