
Serving Cotati, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"He has a hydroblaster unit that is better for surface drains."


*The Angi rating for French Drain Service companies in Cotati, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their French Drain Service needs.
*The HomeAdvisor rating for French Drain Service companies in Cotati, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their French Drain Service needs.
Last update on February 07, 2026

Serving Cotati, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"He has a hydroblaster unit that is better for surface drains."


Serving Cotati, CA and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"Humberto is a very creative problem solver! Personable and definitely interested in customer satisfaction, so spends time understanding the full scope of the problem. The problem was the subterranean north wall of the sanctuary of First Presbyterian Church in Vallejo that was far from being waterproof, especially with the rains last winter. Castaneda dug out the soil next to the wall, pressure washed it and applied two coats of DryLok and then a layer of Henryâ s waterproofing. Then Humberto installed a French drain and then a big pipe to route the water off of five downspouts. To get the correct drainage slope, more excavating needed to be done than anticipated. Removed five landscaped trees and lots of concrete that was in the way of the drains which were to be routed under city sidewalks."





+77

Serving Cotati, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Emergency services offered
Warranties offered
"Aurelio is an excellent service provider and I wouldnâ t hesitate one moment contacting him again for Ruth supply side or waste side plumbing issues. Great price, and he cleared the bathtub drain in addition to working on the sewer lateral out to the street."





+10

Serving Cotati, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Kitchen drain line backup. They cleared it like a champ!"

Serving Cotati, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1992
Free estimates
Credit card accepted
"Marcell Lawson at True Blue Plumbing is a true blue hero when it comes to plumbing. We had a failing water heater and contacted multiple plumbing services. From the outset, he was very responsive, gave more options, paid us a visit quickly, and once we decided he was there quickly and took care of the job. During his visit, we had an additional plumbing issue at the end of the day (which turned out to be a cracked drain pipe in the ceiling above a downstairs bedroom), he let us know he was booked but gave us multiple referrals, one of which took care of us the very next day. AND he called multiple times to make sure we were doing okay. Simple story: Marcell is an awesome plumber and really cares about taking care of people. A+!"

Serving Cotati, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1982
Free estimates
Warranties offered
"Great. Good crew, they worked hard"





+10

Serving Cotati, CA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Jose installed a French drain and piping for the downspouts to drain into. Jose was very prompt and courteous. He kept me updated throughout the course of the project."





+25

Serving Cotati, CA and surrounding areas
Approved
In business since 1968
Free estimates
Small jobs welcome
"Super helpful in scoping it out and then quick completion"

Serving Cotati, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Emergency services offered
Warranties offered
"Just overall great customer service!"





+2

Serving Cotati, CA and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Chris was right on time, very professional and informed me about how things work. Very knowledge. I would not hesitant to recommend CA Shamrock! Exemplary service!"


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

A French drain costs around $9,250 to install, but several factors will determine the final price you pay. Learn the cost to install French drains in this guide.

French drains and sump pumps are excellent tools for dealing with excess yard water. Find out the key difference of a French drain vs. sump pump.

If you need more than a French drain, an alternative drainage system that handles more water can help you protect your property, inside and out.

French drains help keep water away from the interior and exterior of your home. There are three different French drains to choose from, based on where water collects.

Cleaning a French drain regularly can prolong its life and help remove clogs. Learn how to clean a French drain and when you should consider hiring a pro.

Ground and basement drainage issues can be fixed with the right kind of drain pipe. French drains and drain tiles offer similar solutions, but different applications.