Get matched with top basement waterproofing pros in Modesto, CA

Q: What is the average time for completing basement waterproofing projects in Modesto, CA?

• <div><p>In Modesto, basic basement waterproofing tasks like crack repair typically take 1-2 days, while installing interior drainage systems or sump pumps can require 3-7 days. More extensive exterior waterproofing or foundation repair may take up to two weeks, especially if clay soil excavation is involved. Weather delays and permit processing in CA can extend timelines, so scheduling during the dry season is recommended for smoother project completion.</p></div>

Q: What are the key factors to consider when hiring basement waterproofing pros in Modesto, CA?

• <div><p>When hiring in Modesto, prioritize contractors with proven experience handling local clay soil and foundation repair. Ensure they carry proper insurance, provide written estimates, and offer warranties tailored to Modesto&rsquo;s climate. Ask for references from recent projects in your area and verify their understanding of seasonal moisture challenges and local permit requirements. Avoid contractors who pressure for full payment upfront or lack knowledge of Modesto&rsquo;s unique soil conditions.</p></div>

Q: What are the most common mistakes homeowners make during basement waterproofing projects in Modesto, CA?

• <div><p>In Modesto, homeowners often underestimate the challenges posed by expansive clay soil, which can shift and crack foundations if not addressed with proper drainage and foundation repair techniques. Skipping soil grading, neglecting to install sump pumps, or using generic sealants that don&rsquo;t withstand Modesto&rsquo;s temperature swings are frequent errors. Starting projects during the rainy season also leads to delays and incomplete moisture control, increasing long-term water damage risks.</p></div>

Q: What are the different types of contractors specializing in basement waterproofing in Modesto, CA?

• <div><p>In Modesto, you&rsquo;ll find foundation repair specialists who address structural and water intrusion issues, moisture control experts focusing on interior solutions like vapor barriers, general contractors offering comprehensive waterproofing, and drainage professionals skilled in exterior water management. Choosing a contractor familiar with Modesto&rsquo;s clay soil and seasonal weather patterns ensures the right approach for your basement&rsquo;s unique needs and long-term protection.</p></div>

Q: Does completing basement waterproofing projects in Modesto, CA increase my home's value or resale appeal?

• <div><p>Basement waterproofing in Modesto can significantly enhance your home&rsquo;s resale appeal, especially in neighborhoods with a history of flooding or high groundwater. Buyers in CA often look for properties with proven moisture control and foundation repair measures in place. A dry, protected basement also helps lower insurance premiums and reassures buyers concerned about mold or structural issues, making your home stand out in the local real estate market.</p></div>

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Verified Reviews for Basement Waterproofing pros in Modesto, CA

*The Angi rating for Basement Waterproofing companies in Modesto, 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 Modesto, 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 January 20, 2026

Reviewed in January 2026
Kyle came on emergency call and had to diagnose what caused water stains on the ceiling and determine if the leak was active. He was knowledgeable and clean and after a few steps of ruling out possible sources of leakage, it turned out the stain was from a vent on the roof from recent rain. ...
Discount Plumbing, Heating & Air
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Reviewed in November 2023
Jeff was very professional and worked very diligently to get our home childproof at a reasonable price. Iâ m more than happy to support a small business veteran.
Z&Z Home Maintenance & Repair - Unlicensed Contractor
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Reviewed in February 2023
Anthony and Dante installed spray foam and fiberglass insulation for me, and I would recommend them.
Bay West Insulation Inc.
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Reviewed in August 2022
Vinyl tile over concrete water damage. Insurance removed tile. Decision to polish and seal concrete. Good decision. Met with company at the site, received written bid, work was finished within a month. Clean, reliable, professional. Would do it again.
Concrete Innovations, Inc.
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Reviewed in April 2022
I would give 5 stars, but we need a good rain storm to see if there are any leaks. The two men who were here, were excellent, they clesned all their mess. Mellow from the office was great.
Armor Roofing
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Reviewed in December 2021
I hired Justin to fix water damage in the house. He diagnosed where the leak was coming from. Fixed the leak and the drywall. His work looks like there wasn’t any damage at all.Justin is knowledgeable and experienced in the industry. Will hire again for future projects. Highly recommend Finish...
Finish Line Construction, Inc.
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Reviewed in December 2021
Really good service! GJ Construction was careful not to pour the concrete until the weather was just right. We are 100% satisfied with the final outcome and look forward to working with them in the future.
Preferred Construction Group Inc
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Reviewed in April 2021
Quick response, great customer service and quality work! I hired D to repair outlets, replace a bathroom vanity/sink and repair/replace basin and connectors in the basement. Works was done before promised for less than I expected. I would definitely recommend and will use them again.
Mostyles Handyman Service
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Reviewed in February 2020
He showed up just to give me a bid for adding a light in my basement. Bid was reasonable. He took care of it that very day. He did a great job.
AA Guaranteed Electric
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Reviewed in November 2015
When I moved into my house the ventilation in my crawl space had been installed incorrectly in the past. The duct work was laying on the ground, torn in many places, and had- well, let's just there was a great deal of organic material in the duct that no one would want to have. On top of that,...
BRET TURNER HEATING AND COOLING
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Find Basement waterproofing pros in Modesto

Foundation Repair of CA

5.0(

)

Serving Modesto, CA and surrounding areas

Approved

In business since 2011

Free estimates

Small jobs welcome

At Foundation Repair of CA, we specialize in stabilizing homes and businesses throughout Northern California. We specialize in primary foundation damage repair of all types. We provide solutions for failing foundations, including sinking or settling foundations, sagging crawl space, crawl space encapsulation and insulation, and earthquake retrofitting. Our expertise also includes concrete restoration, which incorporates concrete lifting and leveling of slabs, driveways, walkways and pool decks, and more!\n \nWe pride ourselves in providing free, no obligation foundation repair quotes for homeowners within our service area. Protect your home or business. Call us today.

Response time1 day

Response rate90%

24 neighbors recently requested a quote

Serving Modesto, 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 Modesto, 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

Serving Modesto, CA and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"I misunderstood that Bio Safety was NOT going to complete repairs; instead, they ripped out carpet and drywall, primed areas they didn't rip out with mold resistant primer, and left me to hire a handyman to complete drywall and ceiling repairs. His crew couldn't answer many questions, and some answers were guesses which the owner contradicted when asked later. I asked the Bio Safety to check the attic but I was told that wouldn't be necessary. Instead, the handyman went into the attic and found more mold, a leak in the roof and other issues which he repaired immediately."

+90

Recommended by83%of homeowners

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Hampton Enterprise LLC

3.7(

)

Serving Modesto, 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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Blue Pacific concrete

New to Angi

Serving Modesto, CA and surrounding areas

In business since 1999

Blue Pacific can take care of any concrete need you have. We use our 10 years of experience to bring you quality and customer service. We can do repairs, installs, residential, and commercial. Give us a call for all your needs!

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Basement Waterproofing questions, answered by experts

In Modesto, basic basement waterproofing tasks like crack repair typically take 1-2 days, while installing interior drainage systems or sump pumps can require 3-7 days. More extensive exterior waterproofing or foundation repair may take up to two weeks, especially if clay soil excavation is involved. Weather delays and permit processing in CA can extend timelines, so scheduling during the dry season is recommended for smoother project completion.

Helpful?

When hiring in Modesto, prioritize contractors with proven experience handling local clay soil and foundation repair. Ensure they carry proper insurance, provide written estimates, and offer warranties tailored to Modesto’s climate. Ask for references from recent projects in your area and verify their understanding of seasonal moisture challenges and local permit requirements. Avoid contractors who pressure for full payment upfront or lack knowledge of Modesto’s unique soil conditions.

Helpful?

In Modesto, homeowners often underestimate the challenges posed by expansive clay soil, which can shift and crack foundations if not addressed with proper drainage and foundation repair techniques. Skipping soil grading, neglecting to install sump pumps, or using generic sealants that don’t withstand Modesto’s temperature swings are frequent errors. Starting projects during the rainy season also leads to delays and incomplete moisture control, increasing long-term water damage risks.

Helpful?

In Modesto, you’ll find foundation repair specialists who address structural and water intrusion issues, moisture control experts focusing on interior solutions like vapor barriers, general contractors offering comprehensive waterproofing, and drainage professionals skilled in exterior water management. Choosing a contractor familiar with Modesto’s clay soil and seasonal weather patterns ensures the right approach for your basement’s unique needs and long-term protection.

Helpful?

Basement waterproofing in Modesto can significantly enhance your home’s resale appeal, especially in neighborhoods with a history of flooding or high groundwater. Buyers in CA often look for properties with proven moisture control and foundation repair measures in place. A dry, protected basement also helps lower insurance premiums and reassures buyers concerned about mold or structural issues, making your home stand out in the local real estate market.

Helpful?

The Modesto, 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

Lawrence Bonk
•
May 2, 2026May 2, 2026
How Much Does Basement Waterproofing Cost? [2026 Data]
Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
Rachel Hoffman
•
May 2, 2026May 2, 2026
How Much Does It Cost to Finish a Basement? [2026 Data]
An unfinished basement has a lot of potential for a family room or guest suite. So how much does it cost to finish a basement? Read on for all cost factors.
Samantha Hawrylack
•
Apr 6, 2026Apr 6, 2026
10 Tips for Building a Flood-Proof House That's Up to Code
Wondering how you can make a flood-proof house? We’ve got 10 essential tips to prepare and protect you in case of flooding following severe weather.
Lawrence Bonk
•
May 3, 2026May 3, 2026
Is Basement Waterproofing Worth It, and Does It Add Home Value?
Is basement waterproofing worth it even if you’re experiencing some or no water-related issues? Find out more about this preventive measure here.
Dan Simms
•
May 3, 2026May 3, 2026
How to Waterproof a Basement Like a Pro
Dealing with a damp basement? Follow these steps for DIY basement waterproofing to keep water and moisture out and boost your home’s energy efficiency.
Catherine Hiles
•
Mar 19, 2026Mar 19, 2026
7 Crawl Space Maintenance Tips for a Safe and Dry Home
Crawl space maintenance is a necessary part of keeping your home protected and energy-efficient. Follow these tips to properly maintain your crawl space.