
Get matched with top basement waterproofing pros in Knightsen, CA
There are 2 highly-rated local basement waterproofing pros.
Need a pro for your basement waterproofing project in Knightsen, CA?
Verified Reviews for Basement Waterproofing pros in Knightsen, CA
*The Angi rating for Basement Waterproofing companies in Knightsen, 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 Knightsen, 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 October 04, 2025
Find Basement waterproofing pros in Knightsen

Groundworks
Groundworks
Groundworks, formerly Bay Area Underpinning, specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento and San Jose areas. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation. Schedule your FREE inspection today! 1116054
"We hired Groundworks CA (fka Bay Area Underpinning) for what we understood was a full foundation repair. We paid $42K. They only worked on the rear and never informed us that the front wasn’t included. Months later, while selling our home, a third-party engineer found $189K in unaddressed issues at the front. We were blindsided, lost our buyer, and suffered major financial and emotional stress. Groundworks later admitted they hadn’t measured the front. Their rushed “final inspection” months later felt reactive, not professional. When asked for a partial refund, they refused. We feel misled and abandoned. Avoid."
Dominick M on June 2025
Groundworks, formerly Bay Area Underpinning, specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento and San Jose areas. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation. Schedule your FREE inspection today! 1116054
"We hired Groundworks CA (fka Bay Area Underpinning) for what we understood was a full foundation repair. We paid $42K. They only worked on the rear and never informed us that the front wasn’t included. Months later, while selling our home, a third-party engineer found $189K in unaddressed issues at the front. We were blindsided, lost our buyer, and suffered major financial and emotional stress. Groundworks later admitted they hadn’t measured the front. Their rushed “final inspection” months later felt reactive, not professional. When asked for a partial refund, they refused. We feel misled and abandoned. Avoid."
Dominick M on June 2025

Groundworks
Groundworks
Groundworks specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.
"Juanpablo H. & Alex C. provided excellent service. Their knowledge and transparency gave me all the confidence that they?re the best persons for the job. Transparency is a major trust driver for me, and their ability to have frank and informative discussion earned my loyalty. Thank you both! "
Sam _ on May 2025
Groundworks specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento area. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation.
"Juanpablo H. & Alex C. provided excellent service. Their knowledge and transparency gave me all the confidence that they?re the best persons for the job. Transparency is a major trust driver for me, and their ability to have frank and informative discussion earned my loyalty. Thank you both! "
Sam _ on May 2025
Sears Appliance Repair
Sears Appliance Repair
Sears Home Services is America’s #1 appliance services provider. Our thousands of experts based throughout the U.S. deliver guaranteed quality and workmanship. We work on most makes and models whether they were purchased at Sears or not. We take care of your house so you can enjoy your home. Only Sears offers 3 unique ways to save on appliance repairs! 1. Standard Repair Service + 90 Day Guarantee • Cost is provided after technician diagnoses the problem • 90 day guarantee on parts and labor* 2. Flat Repair Cost + Extended Repair Coverage • $249.99 or $299.99 pre-set price (depending on type of appliance) • 1 year of coverage up to $500 for any additional repairs (includes parts)** 3. Flat Repair Cost + Multiple Appliance Coverage • $129.99 for your initial repair with purchase of Home Warranty Appliance Plan • 1 year of repair coverage for up to 10 appliances with 11 subsequent monthly payments of $49.99*** Book your appointment with a Sears expert technician today! * 90 Day Guarantee: The limited warranty provides that if within 90 days from the date of your Sears in-home repair your appliance fails to operate for reasons related to the original repair service when used normally in accordance with manufacturer guidelines, we will replace any parts that failed due to defects in the material or workmanship and perform any labor related to the original repair free of charge. Excludes damage caused due to service provided by any party other than Sears. This warranty gives you specific legal rights, and you may have other rights that vary by state. ** Appliance must be less than 10 years old to qualify for Service Smart Agreement. Covers up to $500 in parts and labor. Limitations apply. *** Limitations apply” Contact Name - Eric Wood.
"It was okay, he was a gentlemen. I was happy."
Rose E on January 2020
Sears Home Services is America’s #1 appliance services provider. Our thousands of experts based throughout the U.S. deliver guaranteed quality and workmanship. We work on most makes and models whether they were purchased at Sears or not. We take care of your house so you can enjoy your home. Only Sears offers 3 unique ways to save on appliance repairs! 1. Standard Repair Service + 90 Day Guarantee • Cost is provided after technician diagnoses the problem • 90 day guarantee on parts and labor* 2. Flat Repair Cost + Extended Repair Coverage • $249.99 or $299.99 pre-set price (depending on type of appliance) • 1 year of coverage up to $500 for any additional repairs (includes parts)** 3. Flat Repair Cost + Multiple Appliance Coverage • $129.99 for your initial repair with purchase of Home Warranty Appliance Plan • 1 year of repair coverage for up to 10 appliances with 11 subsequent monthly payments of $49.99*** Book your appointment with a Sears expert technician today! * 90 Day Guarantee: The limited warranty provides that if within 90 days from the date of your Sears in-home repair your appliance fails to operate for reasons related to the original repair service when used normally in accordance with manufacturer guidelines, we will replace any parts that failed due to defects in the material or workmanship and perform any labor related to the original repair free of charge. Excludes damage caused due to service provided by any party other than Sears. This warranty gives you specific legal rights, and you may have other rights that vary by state. ** Appliance must be less than 10 years old to qualify for Service Smart Agreement. Covers up to $500 in parts and labor. Limitations apply. *** Limitations apply” Contact Name - Eric Wood.
"It was okay, he was a gentlemen. I was happy."
Rose E on January 2020
SERVPRO San Mateo
SERVPRO San Mateo
SERVPRO of San Mateo is a trusted leader in the restoration industry and has the training, equipment, and expertise to handle your restoration and cleaning needs. As a locally owned and operated business, we can provide 24-hour emergency service and are dedicated to responding immediately to commercial or residential needs.
"Water line was replaced by plumbing company. Servepro came promptly at the agreed time. I had cleaned up a lot but water was still coming up from under linoleum. I told the man where it was still a problem and he set up three noisy blowers without wiping up remaining puddles first. He told me he would return between ten and eleven next day. When he didn't I phoned the office and they said it wasn't scheduled but they let me shut off the noisy blowers. After several calls they came about 2PM. I hate to think what my electricity bill will be. They billed my insurance company since I had a claim #."
Anita L on November 2019
SERVPRO of San Mateo is a trusted leader in the restoration industry and has the training, equipment, and expertise to handle your restoration and cleaning needs. As a locally owned and operated business, we can provide 24-hour emergency service and are dedicated to responding immediately to commercial or residential needs.
"Water line was replaced by plumbing company. Servepro came promptly at the agreed time. I had cleaned up a lot but water was still coming up from under linoleum. I told the man where it was still a problem and he set up three noisy blowers without wiping up remaining puddles first. He told me he would return between ten and eleven next day. When he didn't I phoned the office and they said it wasn't scheduled but they let me shut off the noisy blowers. After several calls they came about 2PM. I hate to think what my electricity bill will be. They billed my insurance company since I had a claim #."
Anita L on November 2019
All Bay Air Duct Cleaning
All Bay Air Duct Cleaning
We offer all types of home insulation solutions. It includes crawl space insulation and vapor barriers, wall insulation, batts and blown-in attic insulation, air sealant for attic and crawl space, and radiant barrier. We specialize in air duct deep cleaning and replacement, furnace deep cleanings, duct leakage testing, rodent proofing, crawl space and attic clean up.
We offer all types of home insulation solutions. It includes crawl space insulation and vapor barriers, wall insulation, batts and blown-in attic insulation, air sealant for attic and crawl space, and radiant barrier. We specialize in air duct deep cleaning and replacement, furnace deep cleanings, duct leakage testing, rodent proofing, crawl space and attic clean up.
Wilkinson Design+Construction Inc.
Wilkinson Design+Construction Inc.
Wilkinson Design & Construction, Inc CA State Lic. # 564598 72 Clayton Street San Rafael, CA 94901 phone: 415.785.7961 cell: 415.450.1845 fax: 415.226.0561 E-mail: [email protected] Webstite: www.WilkinsonDesign.net
Wilkinson Design & Construction, Inc CA State Lic. # 564598 72 Clayton Street San Rafael, CA 94901 phone: 415.785.7961 cell: 415.450.1845 fax: 415.226.0561 E-mail: [email protected] Webstite: www.WilkinsonDesign.net
YCH prof
YCH prof
3-4 employees. No sub. Cost is determined by the job travel charge of $35 emergency service charge $125 to $250
3-4 employees. No sub. Cost is determined by the job travel charge of $35 emergency service charge $125 to $250
E&E Roof Repairs
E&E Roof Repairs
We are a small local family business. We offer financing credit and cash.
We are a small local family business. We offer financing credit and cash.
The Knightsen, CA homeowners’ guide to basement waterproofing services
From average costs to expert advice, get all the answers you need to get your job done.
Crawl space repair costs can seem intimidating, but putting them off can lead to bigger issues. Learn about repair costs in this guide to set your budget.
Sump pump battery backup costs depend on the type and the design of the system purchased. Follow this guide to learn how to budget for your backup battery.
Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
A basement offers additional living or storage space, but if it leaks, it can become a significant headache. Learn how to fix a leaky basement and prevent water damage.
Foundation draining issues can cause a lot of problems for your house Learn how to spot these drainage problems so you can figure out how best to repair them.
A flooded basement can lead to lasting structural issues in your home. Discover what causes basement flooding and how to address the issue.
- Brentwood, CA Basement waterproofing pros
- Oakley, CA Basement waterproofing pros
- Bethel Island, CA Basement waterproofing pros
- Discovery Bay, CA Basement waterproofing pros
- Byron, CA Basement waterproofing pros
- Antioch, CA Basement waterproofing pros
- Isleton, CA Basement waterproofing pros
- Rio Vista, CA Basement waterproofing pros
- Pittsburg, CA Basement waterproofing pros
- Bay Point, CA Basement waterproofing pros
- Clayton, CA Basement waterproofing pros
- Blackhawk, CA Basement waterproofing pros
- Stockton, CA Basement waterproofing pros
- Livermore, CA Basement waterproofing pros
- Danville, CA Basement waterproofing pros
- Walnut Grove, CA Basement waterproofing pros
- Concord, CA Basement waterproofing pros
- Alamo, CA Basement waterproofing pros
- French Camp, CA Basement waterproofing pros
- Walnut Creek, CA Basement waterproofing pros
- Pleasant Hill, CA Basement waterproofing pros
- Lodi, CA Basement waterproofing pros
- Woodbridge, CA Basement waterproofing pros
- Lathrop, CA Basement waterproofing pros
- San Ramon, CA Basement waterproofing pros
- Tracy, CA Basement waterproofing pros
- Dublin, CA Basement waterproofing pros
- Pleasanton, CA Basement waterproofing pros
- Lafayette, CA Basement waterproofing pros
- Moraga, CA Basement waterproofing pros