Get matched with top basement waterproofing pros in Merced, CA

Q: What causes a basement wall to bow?

• <div><p>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&mdash;these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent. </p></div>

Q: What protects you from mold?

• <div><p>When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.</p></div>

Q: How long does it take for water to damage concrete?

• <div><p>Water damage to concrete is often gradual and can take months, if not years, for a concrete structure to be fully destroyed. The process often starts with cracks on the surface, followed by sinking slabs and eventually crumbling cement. Therefore, it is important to repair minor damages early to prevent the situation from worsening.</p></div>

Q: Is it better to have a crawl space or a slab?

• <div><p>Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn&rsquo;t an issue because they&rsquo;re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue. </p></div>

Q: How hard is it to put a bathroom in a basement?

• <div><p>Installing a bathroom in a basement isn&rsquo;t a project for most homeowners. Many parts&mdash;plumbing, electricity, and carpentry&mdash;go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner&rsquo;s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. </p></div>

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Verified Reviews for Basement Waterproofing pros in Merced, CA

*The Angi rating for Basement Waterproofing companies in Merced, 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 Merced, 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 November 07, 2025

Reviewed in November 2025
Had sprinklers installed for trees in my backyard. Work was quick and very professional. He was very nice and did the work exactly how I described. His work exceeds expectations! I highly recommend!
K & K Landscape Services Inc.
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Reviewed in May 2025
William was amazing!!! He fixed some plumbing issues I had and fixed a wall and painted it. He also cleared out a shed for me and fixed a door, he did many other things I needed done. Definitely hire him for the job!
William Dobson - Unlicensed Contractor
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Reviewed in September 2024
Thrilled with the results. Home is 35 years old and had some water damage in rear. The repairs are absolutely invisible. They matched the siding and replaced one back wall. Honestly called to tell me the insulation was perfect and would not need to be replaced. Job finished in less time than...
Crafted Handyman Services
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Reviewed in April 2024
They did an awesome job. All my concrete work for building my house was done by them. From foundation, patios, and driveways, they will get the job done
XS CONCRETE INC
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Reviewed in February 2024
We had a new pool, put in with a lot of cement decking, and a waterfall and quartz, but in the surface of the pool
El Dorado Pool & Spa
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Reviewed in January 2024
The work was amazing. not only they did it on time they were early for the amount of concrete three truckloads. It was done in five hours. That was awesome. They knocked it out. Got it done and I provide lunch for them because they did an amazing job. The job turned out great I would recommend...
DT CONCRETE
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Reviewed in June 2023
Service was amazing, replaced drywall that had water damage
Mr. Fixer Handyman services
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Reviewed in August 2022
No hesitation in recommending this business-great service, very helpful and professional. This was an emergency install during the time the weather was over 104. So grateful to this business for helping me out and not taking advantage of me! Highly recommend. You do not find service providers...
The Air Doctor Heating & Air
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Reviewed in May 2022
This is without a doubt the very best customer service ever. We called them when we had no water and they sent someone over the same day. The next day Dave was here at 7:30 am and had us up and running within 4 hours. We were out of water less than 24 hours. The installer, Dave, upgraded...
Pump 'N Water, Inc.
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Reviewed in February 2022
We had our juilet Porch repaired due to years of water damage. Both workers, Gary and Joe were extremely knowledgeable, professional job and very personable. We willbe calling them for future work. The cost for ther service was a fair, exellent value. They were on time and cleaned up before...
Mr. Handyman of Johnson City
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Find Basement waterproofing pros in Merced

Groundworks

3.1(

)

Serving Merced, CA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Groundwork’s did an amazing job. Our home was settling and they were able to lift it. The process was quick and all employees from sales to crew were all very professional."

+16

105 neighbors recently requested a quote

Recommended by12%of homeowners

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Palm Construction, Inc.

5.0(

112

)

Serving Merced, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Very professional. Completed the job in two weeks. The deliverables were as promised. They were very independent, requiring only minimal involvement from the client. However, communication with the owner could be enhanced a bit."

Recommended by100%of homeowners

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Hampton Enterprise LLC

3.7(

)

Serving Merced, 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."

Recommended by60%of homeowners

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A.K.I.I.

New to Angi

Serving Merced, CA and surrounding areas

In business since 2003

Free estimates

K.T.W. Land Development provides local area consumers with superior quality land development and construction services. With years of experience in the industry, you can be sure your project will be handled promptly and professionally. Call K.T.W. Land Development today to schedule an appointment for your project estimate!

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Basement Waterproofing questions, 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.

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

Water damage to concrete is often gradual and can take months, if not years, for a concrete structure to be fully destroyed. The process often starts with cracks on the surface, followed by sinking slabs and eventually crumbling cement. Therefore, it is important to repair minor damages early to prevent the situation from worsening.

Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn’t an issue because they’re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you.

The Merced, CA homeowners’ guide to basement waterproofing services

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

See all articles

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