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Verified Reviews for Basement Waterproofing pros in Napa, CA

*The Angi rating for Basement Waterproofing companies in Napa, 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 Napa, 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 05, 2026

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Avatar for Integrity Decks & Restoration General Contracting, Inc.

Integrity Decks & Restoration General Contracting, Inc.

4.92(
12
)
•Approved Pro

Integrity Decks & Restoration General Contracting, Inc.

4.92(
12
)
•Approved Pro
Customers say: Quick response
10 years of experience
Free onsite estimate

Integrity Decks & Restoration, Inc. (IDR) is a family-owned waterproofing and deck restoration company proudly serving the San Francisco Bay Area. Built on a foundation of craftsmanship, transparency, and reliability, we specialize in high-performance waterproofing systems, balcony and deck restoration, traffic coatings, and exterior surface protection for residential, commercial, and multi-family properties. What began as a small, hands-on operation has grown into a trusted name in the industry, known for durable, code-compliant solutions tailored to each project. Today, our team continues to evolve with new materials and improved workflows, while staying true to our roots as a family business. We take pride in protecting the places people live and work, and in building partnerships with every client we serve. Every project we take on is treated with care, attention to detail, and a commitment to doing the job right — because to us, our work is personal.

"In 2024, we were delighted to have our deck resurfaced by Integrity decks. Both, Refugio who heads the work team, and his son Daniel, who is in charge of the office, were wonderful to work with, always available, timely, and friendly. The work was completed according to the specifications and on time. We have recommended Integrity Decks to several of our neighbors who were also very happy with their work."

Zuzana G on May 2025

Integrity Decks & Restoration, Inc. (IDR) is a family-owned waterproofing and deck restoration company proudly serving the San Francisco Bay Area. Built on a foundation of craftsmanship, transparency, and reliability, we specialize in high-performance waterproofing systems, balcony and deck restoration, traffic coatings, and exterior surface protection for residential, commercial, and multi-family properties. What began as a small, hands-on operation has grown into a trusted name in the industry, known for durable, code-compliant solutions tailored to each project. Today, our team continues to evolve with new materials and improved workflows, while staying true to our roots as a family business. We take pride in protecting the places people live and work, and in building partnerships with every client we serve. Every project we take on is treated with care, attention to detail, and a commitment to doing the job right — because to us, our work is personal.

"In 2024, we were delighted to have our deck resurfaced by Integrity decks. Both, Refugio who heads the work team, and his son Daniel, who is in charge of the office, were wonderful to work with, always available, timely, and friendly. The work was completed according to the specifications and on time. We have recommended Integrity Decks to several of our neighbors who were also very happy with their work."

Zuzana G on May 2025

Avatar for Groundworks

Groundworks

4.67(
12
)
•Approved Pro

Groundworks

4.67(
12
)
•Approved Pro
Customers say: Quality work
21 years of experience
Free onsite estimate

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

Avatar for Groundworks

Groundworks

5.00(
4
)
•Approved Pro

Groundworks

5.00(
4
)
•Approved Pro
3 years of experience
Free onsite estimate

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.

"Juan G was the Forman and Mike was our Piering crew. They were able to put in 7 jacks and complete the job within 1 week! I really appreciated how Juan kept me informed about the job and how they always left their work areas clean and tidy."

Kristina S on December 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.

"Juan G was the Forman and Mike was our Piering crew. They were able to put in 7 jacks and complete the job within 1 week! I really appreciated how Juan kept me informed about the job and how they always left their work areas clean and tidy."

Kristina S on December 2025

RSF Construction Inc.

New on AngiNew on Angi
•Approved Pro

RSF Construction Inc.

New on AngiNew on Angi
•Approved Pro
7 years of experience
Free onsite estimate

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!

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!

Avatar for Garage Experts Of Sacramento

Garage Experts Of Sacramento

5.00(
25
)

Garage Experts Of Sacramento

5.00(
25
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

We provide professional installation of commercial and residential epoxy flooring and storage solutions. Our service area stretches from North of Lake Tahoe to areas in and around San Jose and Santa Cruz. We travel for work!! We offer various types of lifetime warrantied epoxy flooring (multi-layer build-ups of "speckled" and metallic fleck) and lifetime warrantied cabinetry, slat wall and overhead racks. coatings and metallic fleck suspended in clear epoxy). Garage Experts has an enormous client base of garage makeover customers. In addition, we provide concrete makeovers (Capping, Stamping, Staining, Resurfacing, Etching, etc). We can provide unique, durable custom counter tops too.

"From start to finish it was a very pleasant experience. The workers who came out to a simple the cabinets and put on the Apoxsee floor were very professional and courteous. I would highly recommend them to anybody who wants epoxy flooring or cabinets."

jay f on February 2021

We provide professional installation of commercial and residential epoxy flooring and storage solutions. Our service area stretches from North of Lake Tahoe to areas in and around San Jose and Santa Cruz. We travel for work!! We offer various types of lifetime warrantied epoxy flooring (multi-layer build-ups of "speckled" and metallic fleck) and lifetime warrantied cabinetry, slat wall and overhead racks. coatings and metallic fleck suspended in clear epoxy). Garage Experts has an enormous client base of garage makeover customers. In addition, we provide concrete makeovers (Capping, Stamping, Staining, Resurfacing, Etching, etc). We can provide unique, durable custom counter tops too.

"From start to finish it was a very pleasant experience. The workers who came out to a simple the cabinets and put on the Apoxsee floor were very professional and courteous. I would highly recommend them to anybody who wants epoxy flooring or cabinets."

jay f on February 2021

Avatar for B A Morrison

B A Morrison

4.77(
79
)

B A Morrison

4.77(
79
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

B.A. Morrison is a family-owned Heating, Ventilation, Air-Conditioning (HVAC) and General Construction company. We have been in business since 1990 and are fully insured and bonded. Our employees are experienced, trustworthy, and honest tradesmen. We are ready to meet your needs in a timely scheduled manner, to your satisfaction, and at a fair price. We offer free estimates for regularly scheduled maintenance of your HVAC equipment, new and replacement HVAC equipment installation, and your general construction needs. Please consider our service, installation, replacement, or home improvement and remodeling services the next time you have a need for your residential or commercial building.

B.A. Morrison is a family-owned Heating, Ventilation, Air-Conditioning (HVAC) and General Construction company. We have been in business since 1990 and are fully insured and bonded. Our employees are experienced, trustworthy, and honest tradesmen. We are ready to meet your needs in a timely scheduled manner, to your satisfaction, and at a fair price. We offer free estimates for regularly scheduled maintenance of your HVAC equipment, new and replacement HVAC equipment installation, and your general construction needs. Please consider our service, installation, replacement, or home improvement and remodeling services the next time you have a need for your residential or commercial building.

Ned Clyde Construction Inc

4.84(
68
)

Ned Clyde Construction Inc

4.84(
68
)
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Foundation and leveling specialists serving the entire bay area. Licensed, bonded and insured with 30 years of experience. We have licensed geologists, civil and geotechnical engineers on staff, so there's generally no need for outside consultants. Please call the office at 925-689-5411 to talk to an engineer and schedule an appointment.

"Engineer responded within my time frame. He provided the report I needed quickly."

Stephen S on August 2018

Foundation and leveling specialists serving the entire bay area. Licensed, bonded and insured with 30 years of experience. We have licensed geologists, civil and geotechnical engineers on staff, so there's generally no need for outside consultants. Please call the office at 925-689-5411 to talk to an engineer and schedule an appointment.

"Engineer responded within my time frame. He provided the report I needed quickly."

Stephen S on August 2018

Avatar for Morgan Construction

Morgan Construction

5.00(
50
)

Morgan Construction

5.00(
50
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

At Morgan Construction we strive to create a quality customer experience, helping our homeowners achieve their goals with a budget minded approach. Our focus on quality, craftsmanship and attention to detail is evident in our work. Our extensive, hands-on industry knowledge and creative vision allows us to make recommendations, becoming a true resource for our customers as they are challenged with decisions. Our customer base includes both residential and commercial construction. Morgan Construction sub contracts out all specialty trades to licensed and insured sub contractors that we have a long term trusting working relationships with. Let us help you realize your vision.

"Our house had significant water damage from the heavy rain season so we called a few contractors for assessment and estimates. Dan spent nearly two hours with us, patiently and thoroughly answering all of our questions, providing direct and honest advice, and ultimately helping us decide on our best course of action. He and his experienced team of subcontractors replaced all of our windows and sliding doors, replaced our wood siding with new stucco (including new building paper and plywood sheathing), installed new insulation and drywall, and handled all of the interior painting. Dan was readily available via text or call and was much more than just a project manager. He was extremely hands-on often at the house working side by side with his subcontractors, especially carpentry work for window framing. We are pleased with the end result and highly recommend Morgan Construction to anyone looking for high quality work and a trusted advisor."

Jeff L on April 2024

At Morgan Construction we strive to create a quality customer experience, helping our homeowners achieve their goals with a budget minded approach. Our focus on quality, craftsmanship and attention to detail is evident in our work. Our extensive, hands-on industry knowledge and creative vision allows us to make recommendations, becoming a true resource for our customers as they are challenged with decisions. Our customer base includes both residential and commercial construction. Morgan Construction sub contracts out all specialty trades to licensed and insured sub contractors that we have a long term trusting working relationships with. Let us help you realize your vision.

"Our house had significant water damage from the heavy rain season so we called a few contractors for assessment and estimates. Dan spent nearly two hours with us, patiently and thoroughly answering all of our questions, providing direct and honest advice, and ultimately helping us decide on our best course of action. He and his experienced team of subcontractors replaced all of our windows and sliding doors, replaced our wood siding with new stucco (including new building paper and plywood sheathing), installed new insulation and drywall, and handled all of the interior painting. Dan was readily available via text or call and was much more than just a project manager. He was extremely hands-on often at the house working side by side with his subcontractors, especially carpentry work for window framing. We are pleased with the end result and highly recommend Morgan Construction to anyone looking for high quality work and a trusted advisor."

Jeff L on April 2024

Avatar for Mulhall Construction

Mulhall Construction

4.86(
50
)

Mulhall Construction

4.86(
50
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

We do not do small scale projects, We specialize in Foundation Replacements, Soft Story retrofits and Seismic upgrades

We do not do small scale projects, We specialize in Foundation Replacements, Soft Story retrofits and Seismic upgrades

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Basement Waterproofing questions, answered by experts

If you set up a dehumidifier, it will usually dry out your wet crawl space within 12 to 24 hours. Once the space is dry, it’s a good idea to take preventative measures to keep it dry. These include installing a French drain or other exterior foundation drainage system, installing a sump pump in the crawl space, and installing a vapor barrier in addition to leaving the dehumidifier running.

A moisture or vapor barrier helps separate the warm air inside your home from the cold air outside of it. Without it, your walls could collect condensation, mold, or other damage. Check your local building codes to see if including an interior vapor barrier is necessary for your building project or renovation, especially for rooms that are likely to be humid, like bathrooms.

Depending on the severity, a slab leak can go undetected for months or even years, especially if you don’t carry out routine foundation inspections to find foundation leaks early. However, minor leaks are likely to turn into more severe leaks over time, so you might notice increases in water bills and issues with yard drainage, even if the problem is minor.

Rigid foam insulation boards are one of the best insulation materials for crawl spaces. This material insulates the home well, resists water damage, and won't settle like fiberglass or cellulose. Closed-cell spray foam insulation is another effective insulation that both seals the air and provides excellent thermal protection for hard-to-reach spaces like crawl spaces.

Proper drainage is the only way to ensure that your crawl space stays dry. Depending on your property and the extent of your issue, you might need to consider a gutter system, a French drain, or sump pumps to avoid and handle water and moisture under your home. Dehumidifiers can also help to prevent moisture from accumulating if you have a high-humidity environment.

The Napa, CA homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.

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