What are signs that I need to waterproof my basement?

• <div><p>Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:</p><ul><li><p>Water in your basement, including damp walls or puddles on the floor</p></li><li><p>Mold spots in your basement</p></li><li><p>Musty smells or odors</p></li><li><p>Warped doors or walls</p></li><li><p>Cracks in walls</p></li><li><p>Insect issues, such as cockroaches and termites</p></li></ul><p></p></div>

Why does my basement leak after heavy rain?

• <div><p>If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.</p></div>

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Q: Why does my basement leak after heavy rain?

• <div><p>If your basement often leaks after heavy rain, it&rsquo;s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home&rsquo;s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.</p></div>

Q: What other projects should I do at the same time as installing a sewer backflow preventer?

• <div><p>If you&rsquo;ll be digging up your floor to get access to your pipes when putting in a sewer backflow preventer, this would also be a good time to take care of any other plumbing issues or renovations. For example, you could install additional pipes for a basement bathroom. Since the floor will be sealed over with concrete when you&rsquo;re done, now&rsquo;s a good time to take care of those bigger tasks.</p></div>

Q: What's the difference between a channel drain and a French drain?

• <div><p>While both a channel drain and a <a href="https://www.angi.com/articles/what-is-a-french-drain.htm">French drain</a> serve a similar purpose, a French drain is designed to prevent groundwater from causing flooding issues. This type of drain system goes underneath the soil and is completely surrounded by soil and rock. A channel drain, also called a trench drain, removes surface water before it ever enters the ground&mdash;hence the concrete and above-ground installation method.</p></div>

Q: How do I know if my basement walls are suitable for finishing?

• <div><p>To determine if your basement walls are suitable for finishing, assess their structural integrity and moisture conditions. Look for any signs of damage, such as cracks, bowing, or excessive moisture. Ensure proper drainage and address any underlying issues before proceeding. </p><p>Consult with a professional if you're uncertain about the structural stability or potential risks associated with finishing your basement walls.</p></div>

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Verified Reviews for Basement Leak Repair pros in Lamont, CA

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

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

Last update on December 03, 2025

Reviewed in November 2025
I cannot say enough good things about my experience with this company! I had them come and check a leak and they were prompt, polite, experienced experts. Aby, Robert and Oscar were the gentleman who performed the work. The crew’s work was quick and efficient. They not only repaired the leak I...
Premier Roofing of California
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Reviewed in October 2025
I had a water leak in a difficult position underneath my kitchen sink. I contacted His and Hers Plumbing through Home Advisor. Daniel quickly responded to my inquiry and was able to come by and provide a quotation for the repair. Daniel performed the repair and also assisted me with the...
His and Hers Plumbing - Unlicensed Contractor
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Reviewed in August 2025
He did an great job of painting the exterior of our home. Also repaired/replaced some facia boards. Cleaned up and and the workmanship is great . We will definitely use him again.
Hernandez Handyman
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Reviewed in May 2023
I hired him for a lot of money to completed a complicated repair. The increased cost was for the time it would take. He estimated 2 full days. He finished in 3 hours. The pipe he installed is leaking. I told him this and he said no just residual standing water. 2 days later, water is still...
Vinny Landscaping
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Reviewed in April 2022
The guy they sent out to change a pump caused more damage and they refused to fix it. Instead of disconnecting the flow line from the filter, he left it connected and made the cut through the flow line. Which caused the line to damage the filter housing. When I called to discuss the issue they...
Archer pool care and repair
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Reviewed in August 2019
I contacted AMPS because I needed a new pool pump. I had also been having problems on the suction side for almost a month. Not only did Ray & Nick install a new variable speed pump but they also discovered that my old pump was never grounded from the last pool company I had used. Top that off...
AMPS Pool Service
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Reviewed in August 2019
Rene, was great to deal with, was able to start right away and did an amazing job on the repairs also finished right when he said that he would
New Era Roofing
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Reviewed in September 2016
Wise electric diagnosed and repaired a very complicated wiring system in our backyard landscaping. Great job, all done!
Wise Security Systems
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Reviewed in February 2016
Drain pipes in wall behind sinks Had been leaking for long time without our being able to locate leak. While they were engaged we also used them to replace three toilets with new low-water styles which required the replacement of the mounting flange in kind bathroom. They did excellent work,...
Garrett's Plumbing Company Inc
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Reviewed in November 2015
All went well including the second repair I had them do on my electric seat.
One Stop Smog
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Sentri Homes

New on AngiNew on Angi

•Approved Pro

Sentri Homes

New on AngiNew on Angi

•Approved Pro

299 local quotes requested

2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

LAT Construction Inc.

5.00(

)

LAT Construction Inc.

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

At LAT Construction Inc we specialize in ADU's, new construction, and remodeling's. With our design and build team we can make any dream a reality. We offer free estimates to all potential clients. We will strive to implement a long term relationship with our clients.

"The work looks great, especially the painting and new framing. Luis was very communicative and I definitely plan to hire his team again."

Lily M on June 2024

"The work looks great, especially the painting and new framing. Luis was very communicative and I definitely plan to hire his team again."

Lily M on June 2024

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Verified Reviews for Basement Leak Repair pros in Lamont, CA

Find Basement leak repair pros in Lamont

Sentri Homes

Sentri Homes

LAT Construction Inc.

LAT Construction Inc.

Joe's General Contracting Services

Joe's General Contracting Services

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RKC construction

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EnergyWise Builders

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Fuzion Construction Inc

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Boardwalk Construction Group

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Shumadia Corp.

Kern Energy Efficiency

Kern Energy Efficiency

DTD Construction

DTD Construction

The Lamont, CA homeowners’ guide to basement leak repair services

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