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Verified Reviews for Basement Waterproofing pros in San Jacinto, CA

*The Angi rating for Basement Waterproofing companies in San Jacinto, 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 San Jacinto, 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 November 01, 2025

Find Basement waterproofing pros in San Jacinto

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
215 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
55 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 Los Angeles Retrofit & Construction Inc

Los Angeles Retrofit & Construction Inc

18075 Ventura Blvd
5.00(
6
)

Los Angeles Retrofit & Construction Inc

18075 Ventura Blvd
5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We believe our retrofit, remodeling and construction services will give you the best outcome and give you the most value from your property investment. When you work with LARC, you work with the principles of the company from start to finish. Whether you are a concerned home owner, potential home buyer or just want to ask us few questions about your foundation, LARC can help.

We believe our retrofit, remodeling and construction services will give you the best outcome and give you the most value from your property investment. When you work with LARC, you work with the principles of the company from start to finish. Whether you are a concerned home owner, potential home buyer or just want to ask us few questions about your foundation, LARC can help.

Avatar for C & L Construction

C & L Construction

6850 Van Nuys Blvd
4.83(
23
)

C & L Construction

6850 Van Nuys Blvd
4.83(
23
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Home Improvement company. We do kitchens, bathrooms, roofing, painting, windows, new construction, and much more!

"I am so glad I found C &L Construction for my remodel ! The team was always on time , responsive , and worked in the timeline they promised ! I had a complete remodel done for a single family home and their work was flawless!!!"

Ani B on August 2019

Home Improvement company. We do kitchens, bathrooms, roofing, painting, windows, new construction, and much more!

"I am so glad I found C &L Construction for my remodel ! The team was always on time , responsive , and worked in the timeline they promised ! I had a complete remodel done for a single family home and their work was flawless!!!"

Ani B on August 2019

Paramount Remodeling

8549 WILSHIRE BLVD
No reviews yet

Paramount Remodeling

8549 WILSHIRE BLVD
No reviews yet
34 years of experience

Paramount Remodeling provides outstanding services for every project. We are a full service general contractor and focus on providing outstanding service to our clients. We provide the highest professional standards in every project!

Paramount Remodeling provides outstanding services for every project. We are a full service general contractor and focus on providing outstanding service to our clients. We provide the highest professional standards in every project!

Pirate Pilots Construction Company

7223 Agate St.
No reviews yet

Pirate Pilots Construction Company

7223 Agate St.
No reviews yet
9 years of experience

To introduce myself and to let you know of my interest in becoming a part of your remolding Ideas. I assure you that I can successfully fulfill any obligations requiring of any responsibility that you give our company. I have performed my assignments with a high degree of skill and professionalism. Pirate Pilots Construction Company cuts out the Double charging on materials and saves you lots of money. We at "PPCC" Will only charge the LABOR.

To introduce myself and to let you know of my interest in becoming a part of your remolding Ideas. I assure you that I can successfully fulfill any obligations requiring of any responsibility that you give our company. I have performed my assignments with a high degree of skill and professionalism. Pirate Pilots Construction Company cuts out the Double charging on materials and saves you lots of money. We at "PPCC" Will only charge the LABOR.

Avatar for S Visions Construction Inc

S Visions Construction Inc

21512 Nordhoff St.
No reviews yet

S Visions Construction Inc

21512 Nordhoff St.
No reviews yet
21 years of experience

S Visions Construction Inc. specializes in producing creative, functional, and stunning custom designs. We want to bring your idea to fruition, and no job is too big or too small. Let us help you with all your construction needs.

S Visions Construction Inc. specializes in producing creative, functional, and stunning custom designs. We want to bring your idea to fruition, and no job is too big or too small. Let us help you with all your construction needs.

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Basement Waterproofing questions, answered by experts

Finishing an unfinished basement adds the most value, with an average return of 70% or $22,400. A bathroom addition in the basement will provide an ROI of 75%, but the higher cost will leave you with a lower actual return of $9,000, on average. Finishing a basement and adding a kitchen, bathroom, and bedroom to rent the space will leave you with the highest possible ROI, as you could see well over 100% if you rent the space out long-term.

Water damage in your home’s foundation is gradual, often beginning with small cracks that let water seep in. Over time, this weakens the foundation, which then allows in more water, causing significant structural damage. This process can take months or years to destroy your foundation, and the repairs can be very costly. Have your foundation inspected regularly to prevent significant damage.

Preventing water accumulation involves regular inspections, maintaining effective drainage systems, ensuring proper roof maintenance, and taking preventive measures against heavy rainfall or floods.

It is better to have a crawl space that is tailored to the outside temperature, your needs, and the season. For example, it is much better to have a vented space when it’s very hot outside and your AC bills are sky-high. Conversely, when the temperature drops and humidity rises, it is almost always better to have your vents shut and covered if possible.

Costs depend on the area's size and condition, damage extent, and chosen method. A professional evaluation provides a tailored estimate based on specific needs.

The San Jacinto, 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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