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Verified Reviews for Basement Waterproofing pros in Graton, CA

*The Angi rating for Basement Waterproofing companies in Graton, 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 Graton, 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 December 12, 2025

Find Basement waterproofing pros in Graton

Avatar for Groundworks

Groundworks

4.67(
12
)
•Approved Pro

Groundworks

4.67(
12
)
•Approved Pro
Customers say: Quality work
20 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(
2
)
•Approved Pro

Groundworks

5.00(
2
)
•Approved Pro
2 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.

"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

Avatar for Nor-Cal Maintenance

Nor-Cal Maintenance

5.00(
28
)

Nor-Cal Maintenance

5.00(
28
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Nor-Cal Maintenance is family-owned and -operated. We specialize in gutter covers, gutter protection and all rain gutter maintenance from cleaning to beam repair to complete installation for residential and commercial clients in the greater Santa Rosa area, the Greater Sonoma area, and surrounding cities. Nor-Cal Maintenance provides free, personalized consultations to home owners, business owners, wineries, schools, state and federal municipalities, apartments, HOA's, and more. We offer start-to-finish solutions for every project, as well as full design services. We specialize in complete residential exterior maintenance, window washing and power washing services, downspout cleaning, window screen repair, deck refinishing, and MUCH more.

Nor-Cal Maintenance is family-owned and -operated. We specialize in gutter covers, gutter protection and all rain gutter maintenance from cleaning to beam repair to complete installation for residential and commercial clients in the greater Santa Rosa area, the Greater Sonoma area, and surrounding cities. Nor-Cal Maintenance provides free, personalized consultations to home owners, business owners, wineries, schools, state and federal municipalities, apartments, HOA's, and more. We offer start-to-finish solutions for every project, as well as full design services. We specialize in complete residential exterior maintenance, window washing and power washing services, downspout cleaning, window screen repair, deck refinishing, and MUCH more.

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

Benjamin Construction, Inc.

5.00(
5
)

Benjamin Construction, Inc.

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Benjamin Construction provides​ a wide range of residential and commercial construction services for clients throughout the Lafayette Area handling everything from kitchen and bathroom remodeling to addition and custom home building. In addition to its new construction and remodeling services, the company designs and build high-end custom cabinetry, install tile and stone, replace windows, build decks and fences, and more. Owner-operator Benjamin Dumitrascuta is a second-generation building professional—his father, Gelu, established his own construction company in the 1980s after emigrating from Eastern Europe and taught his son the trade at a very young age. “He instilled in me the importance of quality craftsmanship, and that remains my number one objective today,” says Mr. Dumitrascuta. Benjamin Construction takes a personalized approach to dealing with customers and develops close relationships with them that continue even after their construction projects are finished. “Personal service is an important part of my process,” confirms Mr. Dumitrascuta. “I personally handle all cabinet, finish, tile, framing/carpentry, foundation, electrical and plumbing work in-house, and I’m heavily involved in the design of each project.”

Benjamin Construction provides​ a wide range of residential and commercial construction services for clients throughout the Lafayette Area handling everything from kitchen and bathroom remodeling to addition and custom home building. In addition to its new construction and remodeling services, the company designs and build high-end custom cabinetry, install tile and stone, replace windows, build decks and fences, and more. Owner-operator Benjamin Dumitrascuta is a second-generation building professional—his father, Gelu, established his own construction company in the 1980s after emigrating from Eastern Europe and taught his son the trade at a very young age. “He instilled in me the importance of quality craftsmanship, and that remains my number one objective today,” says Mr. Dumitrascuta. Benjamin Construction takes a personalized approach to dealing with customers and develops close relationships with them that continue even after their construction projects are finished. “Personal service is an important part of my process,” confirms Mr. Dumitrascuta. “I personally handle all cabinet, finish, tile, framing/carpentry, foundation, electrical and plumbing work in-house, and I’m heavily involved in the design of each project.”

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FAQs for basement waterproofing projects in Graton, CA

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:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

The Graton, 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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