Can you get sick from a wet basement?

• <div><p>While water in your basement is unlikely to make you sick unless it’s coming from a sewage backup, mold is likely to start to grow in wet areas within 24 hours, and mold can make you sick. According to the <a href="https://www.cdc.gov/mold-health/about/index.html">Centers for Disease Control and Prevention (CDC)</a>, inhaling mold spores can cause allergy symptoms, including runny nose, itchy eyes, difficulty breathing, wheezing, and itchy skin. Individuals with pre-existing respiratory issues like asthma and immunocompromised individuals are at an elevated risk of symptoms when inhaling mold spores.</p></div>

Get matched with top basement waterproofing pros in Mather, CA

Q: How do you know if you have a leak under your foundation?

• <div><p>A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it&rsquo;s a plumbing line embedded in your slab, you&rsquo;ll also likely notice above-average water bills.</p></div>

Q: Can you finish a basement with no windows?

• <div><p>Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.</p></div>

Q: Does water damage always cause mold?

• <div><p>Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast&mdash;ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.</p></div>

Q: What are the downsides of a wet room?

• <div><p>There are a few <a href="https://www.angi.com/articles/wet-room-offers-versatile-bathroom-design.htm">downsides to a wet room</a>, the most important of which is the risk of mold growth from the moisture and humidity. Standard bathrooms can have the same issue, but wet rooms are more likely to experience problems because water is less carefully contained. You also have less privacy since the entire bathroom is open, and the room must include waterproofing, which makes wet rooms more expensive to install than regular bathrooms.</p></div>

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Verified Reviews for Basement Waterproofing pros in Mather, CA

*The Angi rating for Basement Waterproofing companies in Mather, 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 Mather, 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 March 19, 2026

Reviewed in March 2026
We had a plumbing trench in our dining room, and needed it filled and the concrete slab replaced and the laminate floor redone. Mr. Calvo responded to our inquiry right away and came out to inspect the job the same day. The work was done in two days and everything looks wonderful! Mr. Calvo and...
Robert A. Calvo, General Contractor
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Reviewed in July 2024
We had major water damage from a water heater that flooded the entire main floor. Jason came out immediately and had fans everywhere and quickly removed the water, but the damage was done. Jason worked closely with us and our insurance company to replace all floors, remodel an entire bathroom...
Rader Restorations LLC
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Reviewed in July 2023
Conclusion, 1) Cannot be trusted to tell you what is wrong prior, and what needs to be done 2) cannot be trusted to do appropriate work. 3) CAN be trusted to be unprofessional. When I suggested that the work was incomplete, THE OWNER QUICKLY, said, “I WILL TAKE YOU TO SMALL CLAIMS COURT”...
Clark's Gables Roofing
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Reviewed in July 2023
Bon was very helpful and luckily had an opening for my HVAC unit during a crazy heat wave when all of the other big companies flaked on me or didn't have openings for weeks. My unit wasn't pumping out cool air and it was 90 degrees in my house during the heat wave. His prices and services were...
BON Heating & Cooling
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Reviewed in February 2022
this was a big job. 79 yds of cement to replace a broken up driveway. The lines, banding and salt finish were pristine. Small changes were accomodated, advice was well placed. Easy to work with. HIghly recommend!!
Cosumnes River Landscape
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Reviewed in April 2020
Basement is honest and forthright...a pleasure doing business with him.
St. Mary's Garage Door Services
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Reviewed in January 2019
I did not specify "waterproofing contractor" as I should have. Benchmark contacted me quickly and advised me to narrow my search to find the right pro. He was very helpful and I appreciate that.
Benchmark Home Inspections, LLC
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Reviewed in November 2018
Jeff could not do above fire place because he had to drill thorough few studs for power and they don't do horizontal drilling. It needs special equipment. Jeff did great job in the basement since outlet was perfectly positioned in the center of wall and between two studs. Jeff was very...
Provision Smart Security
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Reviewed in May 2017
My water rusted out and started pouring water into my basement. After cleaning up, I went and bought a new one. I went through Home Advisor to find someone to install it. Platinum Home Service called back right away. They had someone at my house that afternoon and the final cost was less than I...
Platinum Home Services, Inc.
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Reviewed in March 2017
<p>1. Upon purchase of a home the under floor area was constructed with a room in jeopardy of the hill slope caving in on it below the first floor. Some floor post supports had already moved out of position, and water had migrated from below the house into the lower room. There also was a severe...
Fassett Construction
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Find Basement waterproofing pros in Mather

Groundworks

5.0(

)

Serving Mather, CA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Warranties offered

"The team went above and beyond to make sure we understood everything that was being done during the project. Very kind and respectful team. Great work. Thanks to Foreman Erick Baez chia Juan Ortega, Bricio Contreras, Aamuel Ayala, Alonso Castaneda and Juan Valenzuela Diaz."

+16

78 neighbors recently requested a quote

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RSF Construction Inc.

1.0(

)

Serving Mather, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

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Palm Construction, Inc.

5.0(

112

)

Serving Mather, 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 Mather, 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 Mather, CA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"They were good. They were pretty fast and came on time. My overall experience with them has been good."

Recommended by60%of homeowners

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ProTek Restoration Services

4.3(

)

Serving Mather, CA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Good so far, timely and knowledgeable."

Recommended by66%of homeowners

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Lifetime Green Coatings Sacramento

5.0(

)

Serving Mather, CA and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"I am completely satisfied with my new garage floor job. The crew was professional, on time and hard working. All in all, a great experience from start to finish."

Response time1 day

Recommended by100%of homeowners

Serving Mather, CA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Very nice job, highly recommend"

Recommended by66%of homeowners

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Angels Handyman Service

New to Angi

Serving Mather, CA and surrounding areas

In business since 2002

Emergency services offered

Warranties offered

Welcome to Angel's Handyman Service. We serve you with a commitment to service and value. We appreciate your interest and look forward to earning your business. 916-337-2127

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Chris olive handyman services

New to Angi

Serving Mather, CA and surrounding areas

Free estimates

Emergency services offered

Warranties offered

HANDYMAN & DECK BUILDER! FREE PHONE ESTIMATES! \n\nI'm Chris Olive and my family has a long history of working in construction and I am proud to continue that tradition. I am a handyman and a deck builder.\n\nI provide these services: Decks & porches, drywall, carpentry, doors & windows, landscaping, painting, remodeling, electrical, plumbing, and miscellaneous activities. \n\nI don't check my emails very often, so call or text me 24/7 at (209) 283-4221.\n\n We are an owner-operated small business.\nI take cash, venmo, Visa, Mastercard, American Express, and Discover Card.

+43

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Showing 1-10 of 12

Basement Waterproofing questions, answered by experts

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.

While water in your basement is unlikely to make you sick unless it’s coming from a sewage backup, mold is likely to start to grow in wet areas within 24 hours, and mold can make you sick. According to the Centers for Disease Control and Prevention (CDC), inhaling mold spores can cause allergy symptoms, including runny nose, itchy eyes, difficulty breathing, wheezing, and itchy skin. Individuals with pre-existing respiratory issues like asthma and immunocompromised individuals are at an elevated risk of symptoms when inhaling mold spores.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

There are a few downsides to a wet room, the most important of which is the risk of mold growth from the moisture and humidity. Standard bathrooms can have the same issue, but wet rooms are more likely to experience problems because water is less carefully contained. You also have less privacy since the entire bathroom is open, and the room must include waterproofing, which makes wet rooms more expensive to install than regular bathrooms.

The Mather, 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

Rachel Hoffman
•
May 2, 2026May 2, 2026
How Much Does It Cost to Finish a Basement? [2026 Data]
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What Is Basement Waterproofing and How Does It Work?
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How to Fix a Leaky Basement
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How to Hire a Basement Waterproofing Contractor
Waterproofing your basement is important to protect your home. Follow these tips to ensure that you hire the right waterproofing contractor for the job.