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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
73 local quotes requested
30 years of experience

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


RSF Construction Inc.
6910 Monte Verde Drive
New on HomeAdvisorNew on Angi
Approved Pro
RSF Construction Inc.
6910 Monte Verde Drive
New on AngiNew on HomeAdvisor
Approved Pro
216 local quotes requested
6 years of experience

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 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
463 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 HavenHub Home Services
HavenHub Home Services
3 Corporate Plaza Dr
4.91(
43
)
Approved Pro
HavenHub Home Services
3 Corporate Plaza Dr
4.91(
43
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
7323 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 Landscaping, Roofing and HVAC solutions, 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 a world class experience with us. Whether it's transforming your outdoor space into a lush oasis or ensuring your indoor climate is just right, we're here to make it happen. 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.

"Helpful! They’re helping us fix what went wrong."

Kadee Maria Knupfer G on June 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 Landscaping, Roofing and HVAC solutions, 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 a world class experience with us. Whether it's transforming your outdoor space into a lush oasis or ensuring your indoor climate is just right, we're here to make it happen. 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.

"Helpful! They’re helping us fix what went wrong."

Kadee Maria Knupfer G on June 2025


Avatar for Groundworks
Groundworks
1850 S. Parco Avenue
3.53(
19
)
Approved Pro
Groundworks
1850 S. Parco Avenue
3.53(
19
)
Approved Pro
Customers say: Super punctual
152 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.

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.


Avatar for MARTINEZ CONSTRUCTION
MARTINEZ CONSTRUCTION
11042 Adoree St
5.00(
10
)
Approved Pro
MARTINEZ CONSTRUCTION
11042 Adoree St
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
636 local quotes requested

Martinez Construction Services is a family-owned business, founded based on our passion for design and construction. At Martinez Construction, we are in this industry because we love what we do. We enjoy working with multidisciplinary teams and take pride in the ongoing relationships we have developed with our clients. LICENSE #907438. FREE ESTIMATES

"Frank was great to work with and he and his crew did an excellent job replacing our driveway, which included texture and stamping for a more modern look and feel. He listened to our wants and needs and gave us his recommendations where he felt would be best. He was never pushy to do this or that. If your looking to have concrete work done, I'd recommend giving him a call."

Jon L on July 2023

Martinez Construction Services is a family-owned business, founded based on our passion for design and construction. At Martinez Construction, we are in this industry because we love what we do. We enjoy working with multidisciplinary teams and take pride in the ongoing relationships we have developed with our clients. LICENSE #907438. FREE ESTIMATES

"Frank was great to work with and he and his crew did an excellent job replacing our driveway, which included texture and stamping for a more modern look and feel. He listened to our wants and needs and gave us his recommendations where he felt would be best. He was never pushy to do this or that. If your looking to have concrete work done, I'd recommend giving him a call."

Jon L on July 2023


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
404 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


Lanter Landscapes
5.00(
3
)
Approved Pro
Lanter Landscapes
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
361 local quotes requested

Lanter Landscapes, in business since 1980, is your locally owned and operated family business. Providing design and build services, including sod, irrigation, concrete, retaining walls, interlocking concrete pavers, landscape lighting, and more! Call us today for a free estimate!

"They did an incredible job completing all the work needed in a timely fashion."

Wasim K on May 2025

Lanter Landscapes, in business since 1980, is your locally owned and operated family business. Providing design and build services, including sod, irrigation, concrete, retaining walls, interlocking concrete pavers, landscape lighting, and more! Call us today for a free estimate!

"They did an incredible job completing all the work needed in a timely fashion."

Wasim K on May 2025


Avatar for Paramount Pavers & Construction
Paramount Pavers & Construction
19528 Ventura Blvd. #704
4.89(
199
)
Approved Pro
Paramount Pavers & Construction
19528 Ventura Blvd. #704
4.89(
199
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
1449 local quotes requested

General contractor in Los Angeles and the surrounding counties since 2001. specialize in building Room Additions (Plans to Finish) doing major remodeling. emphasize on giving personal attention as well as working real close up with the customers. I believe in 100% service and respect to the customers. Our Services : Room Additions, Bathroom Remodeling, Landscape, Hardscape, Complete Remodeling, Kitchen Remodeling, New Construction, Exterior Remodeling, Interior Remodeling, Painting Contractor, Electrical Contractor, Patio Remodeling, Decks, Patios, Retaining Walls, Swimming Pools, Law Voltage, Cement Work, Concrete Work, Bathroom Renovation, Bathroom Installation, Bathroom Removal, Bathroom Remodeling Ideas, Bathroom Replacement, Kitchen Renovation, Kitchen Installation, Kitchen Repair, Kitchen Remodeling Ideas, Kitchen Replacement, Home Addition Contractor, Framing Contractor, Drywall Contractor, Plumbing Contractor, Home Remodeling

"Great service! Super happy I went with Rudy and Issac"

Carlos M on May 2025

General contractor in Los Angeles and the surrounding counties since 2001. specialize in building Room Additions (Plans to Finish) doing major remodeling. emphasize on giving personal attention as well as working real close up with the customers. I believe in 100% service and respect to the customers. Our Services : Room Additions, Bathroom Remodeling, Landscape, Hardscape, Complete Remodeling, Kitchen Remodeling, New Construction, Exterior Remodeling, Interior Remodeling, Painting Contractor, Electrical Contractor, Patio Remodeling, Decks, Patios, Retaining Walls, Swimming Pools, Law Voltage, Cement Work, Concrete Work, Bathroom Renovation, Bathroom Installation, Bathroom Removal, Bathroom Remodeling Ideas, Bathroom Replacement, Kitchen Renovation, Kitchen Installation, Kitchen Repair, Kitchen Remodeling Ideas, Kitchen Replacement, Home Addition Contractor, Framing Contractor, Drywall Contractor, Plumbing Contractor, Home Remodeling

"Great service! Super happy I went with Rudy and Issac"

Carlos M on May 2025


Avatar for Jose Castro's Landscaping
Jose Castro's Landscaping
New on HomeAdvisorNew on Angi
Approved Pro
Jose Castro's Landscaping
New on AngiNew on HomeAdvisor
Approved Pro
2087 local quotes requested
2 years of experience

Landscaping business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

Landscaping business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

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Showing 1-10 of 975

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

Standing water in your crawl space won’t disappear on its own. Keep the drainage clear, ensure the vents are working properly, and run a dehumidifier to control moisture levels. If dampness lingers, mold, wood rot, and foundation cracks can follow. Act quickly and call a pro to protect your home’s structure and indoor air quality.

Disinfecting a crawl space requires a methodical approach. First, clear all debris and remove old liners and insulation to eliminate contaminants. Then, apply a strong bleach solution or borate spray to eradicate mold spores and mildew. Ensuring complete surface coverage and allowing ample drying time establishes a sanitary environment and prevents future infestations.

A crawl space serves vital functions by providing access to essential systems, including electrical wiring, plumbing, and HVAC ducts. It also offers a buffer zone that aids in moisture control and protects underlying structural components. 

Yes, crawl space encapsulation is a worthwhile investment in protecting your home. Crawl space encapsulation locks out moisture, controls humidity, and blocks pests and harmful pollutants like radon gas. Those benefits boost indoor air quality and protect beams, joists, and insulation, giving your home long‑term structural stability and safeguarding your family’s health.

Prevention is the best way to keep water out of your crawl space. A dehumidifier and sump pump can help control moisture levels, but grading the landscape to redirect water away from the foundation is most important. Additionally, seal foundation cracks and install reliable drainage systems such as a French drain to maintain a consistently dry environment.

Yes, repairing your crawl space foundation is critical, regardless of how minor the issue may seem. Foundation problems arise from enduring moisture, water intrusion, and unstable soil, which can lead to significant structural damage if left unaddressed. Hiring a licensed structural engineer or foundation repair professional guarantees your home’s long-term stability and safety while preventing escalating repair costs.

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.
Empty basement with new concrete floor and white walls
Jun 23, 2025
Jun 23, 2025
How much a foundation costs depends mainly on its size and specific material. This guide can help you plan your project budget.
clean crawlspace with insulation and wood beams under house
Jun 15, 2025
Jun 15, 2025
Budget for crawl space repair costs based on factors such as square footage, repair type, accessibility, cleaning, maintenance, labor, and more.
professional repairing the foundation of a home
Apr 24, 2025
Apr 24, 2025
Budget for foundation repair costs based on factors such as the extent of damage, house size, materials, labor, problem type, and more.
raising the foundation of a home with a house lift
Apr 21, 2025
Apr 21, 2025
Learn how much it costs to raise a house. Explore how factors like the house size, structure, age, landscaping, and labor rates affect the price.
A man digging out a french drain
Jun 24, 2025
Jun 24, 2025
Discover how much it costs to install a French drain based on the size, accessibility, depth, landscape condition, and labor rates.
crawl space prepared for an encapsultion
Mar 20, 2025
Mar 20, 2025
Use this guide to budget for crawl space encapsulation cost factors such as crawl space size, prep, maintenance tasks, labor, and more.
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