What happens if you don’t fix foundation problems?

• <div><p>If foundation problems are not fixed, they will likely worsen over time, leading to more complex and expensive repairs. Neglecting a damaged foundation can cause a range of issues, including:</p><ul><li><p><b>Structural Damage:</b> Minor problems like small cracks can escalate into major structural issues. This can damage the house above the foundation and, in severe cases, lead to foundation walls caving in or a total collapse.</p></li><li><p><b>Water Damage and Pests:</b> Moisture and water intrusion can cause flooding, mold growth, and pest infestations.</p></li><li><p><b>Health and Safety Risks:</b> Mold can lead to poor indoor air quality and other health risks, while structural instability poses a significant safety hazard.</p></li><li><p><b>Reduced Home Efficiency:</b> A compromised foundation can negatively impact your home's energy efficiency.</p></li></ul><p>To avoid these escalating problems and costs, it's best to hire a foundation repair company to address any issues as soon as you become aware of them. The earlier problems are discovered and fixed, the lower the repair cost will likely be.</p></div>

How much does it cost to finish a crawl space?

• <div><p>If you don’t wish to dig it out and convert it into a finished basement, you can still <a href="https://www.angi.com/articles/how-much-does-crawl-space-encapsulation-cost.htm">encapsulate your crawl space</a> to protect it from damage for an average cost of <b>$5,500</b>. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.</p></div>

Get matched with top basement waterproofing pros in Mather, CA

Q: What is the best basement ventilation system?

• <div><p>The best type of basement ventilation system depends on your budget, the moisture in your basement&rsquo;s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.</p></div>

Q: What benefits do professionals offer over DIY sealing?

• <div><p>Access to commercial-grade products and equipment, ensuring thorough coverage and long-lasting protection.</p></div>

Q: How much does it cost to finish a crawl space?

• <div><p>If you don&rsquo;t wish to dig it out and convert it into a finished basement, you can still <a href="https://www.angi.com/articles/how-much-does-crawl-space-encapsulation-cost.htm">encapsulate your crawl space</a> to protect it from damage for an average cost of <b>$5,500</b>. Finishing a crawl space beyond this isn&rsquo;t really worthwhile, as the low ceilings mean you won&rsquo;t be able to use the area as living space.</p></div>

Q: What are the most expensive parts of finishing a basement?

• <div><p>Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. </p><p>The <a href="https://www.angi.com/articles/what-average-cost-add-exitwalk-out-my-finished-basement.htm">cost of a walkout basement</a> can be anywhere from $5,000 to $35,000.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your basement waterproofing project in Mather, CA?

Select your specific project to find the pro for you.

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
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
Reviewed in April 2020
Basement is honest and forthright...a pleasure doing business with him.
St. Mary's Garage Door Services
Request a quote
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
Request a quote
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
Request a quote
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.
Request a quote
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
Request a quote

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

Request Quote

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!

Request Quote

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

Request Quote

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

Request Quote

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

Request Quote

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

Request Quote

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

Request Quote

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

Request Quote

Showing 1-10 of 12

Basement Waterproofing questions, answered by experts

If foundation problems are not fixed, they will likely worsen over time, leading to more complex and expensive repairs. Neglecting a damaged foundation can cause a range of issues, including:

Structural Damage: Minor problems like small cracks can escalate into major structural issues. This can damage the house above the foundation and, in severe cases, lead to foundation walls caving in or a total collapse.
Water Damage and Pests: Moisture and water intrusion can cause flooding, mold growth, and pest infestations.
Health and Safety Risks: Mold can lead to poor indoor air quality and other health risks, while structural instability poses a significant safety hazard.
Reduced Home Efficiency: A compromised foundation can negatively impact your home's energy efficiency.

To avoid these escalating problems and costs, it's best to hire a foundation repair company to address any issues as soon as you become aware of them. The earlier problems are discovered and fixed, the lower the repair cost will likely be.

The best type of basement ventilation system depends on your budget, the moisture in your basement’s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.

Access to commercial-grade products and equipment, ensuring thorough coverage and long-lasting protection.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance.

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

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

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.
Mariel Loveland
•
May 22, 2026May 22, 2026
Everything You Need to Know About Basement Waterproofing Warranties
Your basement waterproofing warranty may not cover as much as you think it does. Use this guide to help you understand the fine print before you sign a contract.
Dan Simms
•
Apr 8, 2026Apr 8, 2026
How to Get Rid of Musty Smells in Your Basement for Good: 4 Options and Prevention Methods
Wondering how to get rid of musty smells in your basement? Get rid of them permanently using this DIY guide and learn when to call a pro.
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.
Lauren Wellbank
•
May 22, 2026May 22, 2026
The Ultimate Flood Preparation Checklist
Whether you live in a flood-prone area or are someone who likes to have a plan, this checklist can help you get your home and community ready for a water-related emergency.