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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Claremont

Avatar for Groundworks

Groundworks

4.44(
124
)
•Approved Pro

Groundworks

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 Oasis Turf & Hardscape

Oasis Turf & Hardscape

4.95(
86
)
•Approved Pro

Oasis Turf & Hardscape

4.95(
86
)
•Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
670 local quotes requested

#1 Artificial Grass Company in Southern California We carefully and closely work with your vision to help you create an invigorating and functional space with artificial grass, putting greens, pavers and more... that not only looks great but is also one that can be enjoyed for many years with very little maintenance and a lifetime warranty!

"The whole team was respectful of my property and cleaned up every day before leaving that meant a lot to me. Highly recommend."

Yahir A on November 2025

#1 Artificial Grass Company in Southern California We carefully and closely work with your vision to help you create an invigorating and functional space with artificial grass, putting greens, pavers and more... that not only looks great but is also one that can be enjoyed for many years with very little maintenance and a lifetime warranty!

"The whole team was respectful of my property and cleaned up every day before leaving that meant a lot to me. Highly recommend."

Yahir A on November 2025

Avatar for Alpha Structural, Inc.

Alpha Structural, Inc.

4.67(
231
)
•Approved Pro

Alpha Structural, Inc.

4.67(
231
)
•Approved Pro
Customers say: Super punctual
458 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

3.55(
20
)
•Approved Pro

Groundworks

3.55(
20
)
•Approved Pro
Customers say: Super punctual
116 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

Avatar for RJ Laun Construction

RJ Laun Construction

4.94(
16
)

RJ Laun Construction

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.

Avatar for William Joyce Design

William Joyce Design

5.00(
3
)

William Joyce Design

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

William Joyce Design is a Landscape Architecture firm dedicated to creating imaginative, functional, & attractive landscapes that elicit lasting responses & are intrinsic to the local environmental conditions. As each site poses its own questions & offers its unique subtleties, we use our own broad-reaching cultural experiences & expansive education to embrace natural systems, feed our imagination, & reinforce the instincts of our designs. By committing to stewardship of the land, responsible use of natural resources, incorporation of local materials & native plants, & appreciation of the physical interaction with the landscape, William Joyce Design seeks uncontrived, natural solutions designed to generate discovery, splendor, & balance.

William Joyce Design is a Landscape Architecture firm dedicated to creating imaginative, functional, & attractive landscapes that elicit lasting responses & are intrinsic to the local environmental conditions. As each site poses its own questions & offers its unique subtleties, we use our own broad-reaching cultural experiences & expansive education to embrace natural systems, feed our imagination, & reinforce the instincts of our designs. By committing to stewardship of the land, responsible use of natural resources, incorporation of local materials & native plants, & appreciation of the physical interaction with the landscape, William Joyce Design seeks uncontrived, natural solutions designed to generate discovery, splendor, & balance.

Pacific Rim Construction Group

No reviews yet

Pacific Rim Construction Group

No reviews yet

Pacific Rim Construction Group is license and bonded.

Pacific Rim Construction Group is license and bonded.

Branko’s Construction Company

No reviews yet

Branko’s Construction Company

No reviews yet
45 years of experience

General Contractor/ General contractors license. Having a full staff of professionals designated to their trade. Estimate recommended, and price agreed upon over the phone. After negotiating what is to be repaired, a contract, and all of it's terms will be stipulated.

General Contractor/ General contractors license. Having a full staff of professionals designated to their trade. Estimate recommended, and price agreed upon over the phone. After negotiating what is to be repaired, a contract, and all of it's terms will be stipulated.

Jose Luis Cruz Landscaping

4.46(
13
)

Jose Luis Cruz Landscaping

4.46(
13
)
Customers say: Super punctual
35 years of experience

With an experienced and professional staff, Jose Luis Cruz Landscaping can handle projects of any size in the commercial field. Our professionalism combined with excellent water management solutions and eco-friendly methods, are just a few of the added benefits offered.

With an experienced and professional staff, Jose Luis Cruz Landscaping can handle projects of any size in the commercial field. Our professionalism combined with excellent water management solutions and eco-friendly methods, are just a few of the added benefits offered.

Avatar for Bernardo Concrete Inc.

Bernardo Concrete Inc.

3.67(
3
)

Bernardo Concrete Inc.

3.67(
3
)
26 years of experience

Bernardo concrete is a fullscale concrete repair company specializing in concrete construction, concrete repair, and concrete demolition. Bernardo Concrete works out of Orange County but services the entire Southern California area. Bernardo can handle concrete repair and construction services for commercial, residental, as well as industrial projects. Call Bernardo Concrete today for a free estimate and ask for your Angies List Members Discounts. We would love to serve you today,

"Can’t even express how satisfied we are with our completed work. Suggestions were made and I’m glad that I went with their professional ideas that I’m sure comes from years of experience. The crew was professional and clean and was on time"

Roni D on May 2024

Bernardo concrete is a fullscale concrete repair company specializing in concrete construction, concrete repair, and concrete demolition. Bernardo Concrete works out of Orange County but services the entire Southern California area. Bernardo can handle concrete repair and construction services for commercial, residental, as well as industrial projects. Call Bernardo Concrete today for a free estimate and ask for your Angies List Members Discounts. We would love to serve you today,

"Can’t even express how satisfied we are with our completed work. Suggestions were made and I’m glad that I went with their professional ideas that I’m sure comes from years of experience. The crew was professional and clean and was on time"

Roni D on May 2024

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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Claremont, 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 Claremont, 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