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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in San Dimas

Avatar for Groundworks

Groundworks

1850 S. Parco Avenue
4.44(
124
)
•Approved Pro

Groundworks

1850 S. Parco Avenue
4.44(
124
)
•Approved Pro
Customers say: Quick response
30 years of experience
Free onsite estimate

Groundworks is the nation’s leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we’re there with one mission – to repair, protect and improve their home.

"Roger and his crew of Manuel, Carlos and Josias did everything we asked for and more. Roger answered all of our questions, kept us informed on the status of the project and managed the project extremely well. We definitely made the right decision having Groundworks do our project."

Eric S on March 2025

Groundworks is the nation’s leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we’re there with one mission – to repair, protect and improve their home.

"Roger and his crew of Manuel, Carlos and Josias did everything we asked for and more. Roger answered all of our questions, kept us informed on the status of the project and managed the project extremely well. We definitely made the right decision having Groundworks do our project."

Eric S on March 2025

Avatar for HavenHub Home Services

HavenHub Home Services

3 Corporate Plaza Dr
4.73(
45
)
•Approved Pro

HavenHub Home Services

3 Corporate Plaza Dr
4.73(
45
)
•Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
4605 local quotes requested

At HavenHub, we're more than just a home service company – we're your trusted partner in creating havens of comfort and joy. Specializing in several verticals such as Turf, Landscaping, Landscape Architecture or Design, Masonry/Concrete and much more, we bring expertise and dedication to every project we undertake. What sets us apart is our commitment to putting our customers first. From the moment you engage us, you'll receive world-class service where your needs drive the project. We don't just build landscapes; we build relationships founded on trust and meticulous execution. At HavenHub, your satisfaction and peace of mind are our top priorities, and we're honored to be a part of your home journey. Welcome to the HavenHub family, where your home is our passion.

"I truly regret hiring HavenHub for my backyard project. After a salesman came to our door, he designed our landscaping plan — retaining wall, stairs, shed pad, boulders, and sprinklers — and quoted $24,995. I paid in full around July 8, 2025, with a contract promising completion by July 28. No one ever showed up until I contacted them. Since then, I’ve dealt with four project managers, endless delays, broken promises, and almost zero communication. One crew came but didn’t know what they were supposed to do and couldn’t reach anyone for direction. Another poured a footing wrong, according to one of their own workers. Months later, my yard is still torn apart, and HavenHub continues to ignore me despite taking full payment. I’ve had to involve a lawyer just to try to get a response. Terrible communication, unreliable crews, and no accountability. Be very careful before hiring this company."

Jaime M on October 2025

At HavenHub, we're more than just a home service company – we're your trusted partner in creating havens of comfort and joy. Specializing in several verticals such as Turf, Landscaping, Landscape Architecture or Design, Masonry/Concrete and much more, we bring expertise and dedication to every project we undertake. What sets us apart is our commitment to putting our customers first. From the moment you engage us, you'll receive world-class service where your needs drive the project. We don't just build landscapes; we build relationships founded on trust and meticulous execution. At HavenHub, your satisfaction and peace of mind are our top priorities, and we're honored to be a part of your home journey. Welcome to the HavenHub family, where your home is our passion.

"I truly regret hiring HavenHub for my backyard project. After a salesman came to our door, he designed our landscaping plan — retaining wall, stairs, shed pad, boulders, and sprinklers — and quoted $24,995. I paid in full around July 8, 2025, with a contract promising completion by July 28. No one ever showed up until I contacted them. Since then, I’ve dealt with four project managers, endless delays, broken promises, and almost zero communication. One crew came but didn’t know what they were supposed to do and couldn’t reach anyone for direction. Another poured a footing wrong, according to one of their own workers. Months later, my yard is still torn apart, and HavenHub continues to ignore me despite taking full payment. I’ve had to involve a lawyer just to try to get a response. Terrible communication, unreliable crews, and no accountability. Be very careful before hiring this company."

Jaime M on October 2025

Avatar for Alpha Structural, Inc.

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
•Approved Pro

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
•Approved Pro
Customers say: Super punctual
450 local quotes requested
33 years of experience

Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.

"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."

Robert N on September 2024

Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.

"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."

Robert N on September 2024

Avatar for Groundworks

Groundworks

1850 S. Parco Avenue
3.55(
20
)
•Approved Pro

Groundworks

1850 S. Parco Avenue
3.55(
20
)
•Approved Pro
Customers say: Super punctual
125 local quotes requested
30 years of experience

In 1995, EagleLift was founded in Rancho Cucamonga, bringing innovative foundation repair and soil stabilization solutions to Southern California. In 2024, EagleLift joined forces with Groundworks, the nation’s leading and fastest-growing foundation repair and water management solutions provider, and rebranded under the Groundworks name. They will continue to offer industry-leading technology and resources to more customers across California. Groundworks provides elite customer service and quality home solutions for all foundation repair and concrete repair needs. 1116054

"The job was done professionally and correctly"

Stephen B on October 2025

In 1995, EagleLift was founded in Rancho Cucamonga, bringing innovative foundation repair and soil stabilization solutions to Southern California. In 2024, EagleLift joined forces with Groundworks, the nation’s leading and fastest-growing foundation repair and water management solutions provider, and rebranded under the Groundworks name. They will continue to offer industry-leading technology and resources to more customers across California. Groundworks provides elite customer service and quality home solutions for all foundation repair and concrete repair needs. 1116054

"The job was done professionally and correctly"

Stephen B on October 2025

AJB Concrete & Masonry Construction

848 W Locust St
5.00(
18
)
•Approved Pro

AJB Concrete & Masonry Construction

848 W Locust St
5.00(
18
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
424 local quotes requested

Since 1984, we have been specializing in masonry and concrete services, repairs, pouring, leveling, driveways, walkways, patios, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"The masonry replacement was very well done with bricks the closest match possible given my home was built in 1978. I would have appreciated a more thorough clean-up after the work was completed."

Sandra S on January 2025

Since 1984, we have been specializing in masonry and concrete services, repairs, pouring, leveling, driveways, walkways, patios, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"The masonry replacement was very well done with bricks the closest match possible given my home was built in 1978. I would have appreciated a more thorough clean-up after the work was completed."

Sandra S on January 2025

Lotus Builders

3239 Deronda Dr
5.00(
4
)

Lotus Builders

3239 Deronda Dr
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Avatar for Build4U Construction and Design

Build4U Construction and Design

3950 Laurel Canyon Blvd #1890
No reviews yet

Build4U Construction and Design

3950 Laurel Canyon Blvd #1890
No reviews yet
19 years of experience

CONSTRUCTION IS IN OUR DNA. FROM PLANNING, DESIGN TO CONSTRUCTION MANAGEMENT AND FINAL DELIVERY. Being in the right hands makes all the difference sometimes. At Build4U Construction and Design we care about every detail. Our family care about your family and will ensure the project will be delivered on time on budget to your full satisfaction. We are aware that construction may be overwhelming, dusty and noisy. Our professional crews understand and are sensitive to your needs as you need to continue with your daily lives while we work hard at making your dream project come to life. We take each project as our own work and make sure you will be added to our list of happy clients.

CONSTRUCTION IS IN OUR DNA. FROM PLANNING, DESIGN TO CONSTRUCTION MANAGEMENT AND FINAL DELIVERY. Being in the right hands makes all the difference sometimes. At Build4U Construction and Design we care about every detail. Our family care about your family and will ensure the project will be delivered on time on budget to your full satisfaction. We are aware that construction may be overwhelming, dusty and noisy. Our professional crews understand and are sensitive to your needs as you need to continue with your daily lives while we work hard at making your dream project come to life. We take each project as our own work and make sure you will be added to our list of happy clients.

Avatar for RJ Laun Construction

RJ Laun Construction

1175 Rexford Ave
4.94(
16
)

RJ Laun Construction

1175 Rexford Ave
4.94(
16
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

A full service residential remodeling company specializing in older homes.

A full service residential remodeling company specializing in older homes.

Pacific Rim Construction Group

540 WEST 45TH STREET
No reviews yet

Pacific Rim Construction Group

540 WEST 45TH STREET
No reviews yet

Pacific Rim Construction Group is license and bonded.

Pacific Rim Construction Group is license and bonded.

Homfix Inc.

4924 Balboa Blvd #429
5.00(
2
)

Homfix Inc.

4924 Balboa Blvd #429
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a Home Improvement and design Company that provides all type of home services from A to Z, Kitchen Remodel, Bathroom Remodel, Additions, Roof, Solar Panels, and ect..

We are a Home Improvement and design Company that provides all type of home services from A to Z, Kitchen Remodel, Bathroom Remodel, Additions, Roof, Solar Panels, and ect..

...
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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in San Dimas, CA

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The San Dimas, CA homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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

See all articles