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Best basement waterproofing pros near Clearlake, CA

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Verified Reviews for Basement Waterproofing pros in Clearlake, CA

*The Angi rating for Basement Waterproofing companies in Clearlake, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Clearlake, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on April 04, 2025

Top-Rated Basement waterproofing pros in Clearlake - Updated Nov 2026

Avatar for Groundworks
Groundworks
4.6(
19
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Clearlake, CA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Groundwork’s did a great job on our house. Luis G was an amazing Forman with Ken H and Mark P all waterproofed under our house. They worked quickly, efficiently and thoroughly left all areas in tact and clean. Luis communicated very clearly about the all aspects of the job until it was completed."
Basement
Basement
Basement
Basement
Foundation

+16

160 neighbors recently requested a quote
Recommended by58%of homeowners
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Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Clearlake, CA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"I only use James when I need some work done to my house. He responds fast, gets the work done quicker than just about anyone else I've ever used and seems very concerned with leaving his customers happy."
Additional Photos
Additional Photos
Recommended by60%of homeowners
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Avatar for Diamond D Construction, LLC
Diamond D Construction, LLC
3.5(
6
)
Basement Drainage Channels - Install

Serving Clearlake, CA and surrounding areas

In business since 2017

Free estimates

Offers commercial services

"They are efficient, customer service oriented, always in a timely manner, and everything they promised they delivered."
Response time3 days
Recommended by100%of homeowners
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Avatar for Baker Excavating Co
Baker Excavating Co
5.0(
1
)
Basement Drainage Channels - Install

Serving Clearlake, CA and surrounding areas

In business since 2018

Free estimates

Offers commercial services

"He did wonders, was able to make driveways and flat spots on my slopped property. Gets the job done right, works quickly, and keeps me up to date with everything. I am going to be hiring him again here soon."
Response time12 hrs
Recommended by100%of homeowners
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Bobcat Services
New to Angi
Basement Drainage Channels - Install

Serving Clearlake, CA and surrounding areas

We are dedicated to providing our clients with the very best in installation and repair for your concrete and masonry needs. With over seven years of industry experience, we specialize in a variety of residential and commercial brick, stone and concrete work. We take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. \n

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Basement Waterproofing FAQs, answered by experts

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

Proper drainage prevents water damage, mold growth, and foundation settling, protecting your home’s structural integrity.

To maintain an outdoor structure, perform regular inspections for damage, leaks, and weak joints. Clean the structure regularly, treat or repaint wood surfaces for weather resistance, and reinforce any weak joints to prevent deterioration and ensure its longevity.

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

Yes, professional installers use weather-resistant materials to protect the dish and cabling from environmental damage.

The Clearlake, CA homeowners’ guide to basement waterproofing services

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

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