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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Signal Hill

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 Alpha Structural, Inc.

Alpha Structural, Inc.

4.76(
147
)
Approved Pro

Alpha Structural, Inc.

4.76(
147
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
218 local quotes requested

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.

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"

Laurie C on August 2023

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.

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"

Laurie C on August 2023


All County Landscaping & Hardscaping

No reviews yet

All County Landscaping & Hardscaping

No reviews yet
Free onsite estimate

We specialize in landscaping & hardscaping in Los Angeles, CA. Our commitment is to complete every project on time, within budget, and to your complete satisfaction. We take that pledge seriously. We design and execute all our hardscaping projects to fit the style of your home or commercial property. Our installation are built to fit into their environments and not waste natural resources. We work closely with our clients to actualize their artistic visions. Contact us today for a quote on your next landscaping & hardscaping project.

We specialize in landscaping & hardscaping in Los Angeles, CA. Our commitment is to complete every project on time, within budget, and to your complete satisfaction. We take that pledge seriously. We design and execute all our hardscaping projects to fit the style of your home or commercial property. Our installation are built to fit into their environments and not waste natural resources. We work closely with our clients to actualize their artistic visions. Contact us today for a quote on your next landscaping & hardscaping project.


Avatar for Build4U Construction and Design

Build4U Construction and Design

No reviews yet

Build4U Construction and Design

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.


Homfix Inc.

5.00(
2
)

Homfix Inc.

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..


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.


Innfinito Studio

No reviews yet

Innfinito Studio

No reviews yet
16 years of experience

We specialize in Outdoor Design . We use different tools to help you visualize your project. Swimming pools, patio covers, decks , fireplaces, firepits ,water features , artificial grass, concrete, porcelain , wood , pavers are some of our specialties. We use great visualization tools to help you understand our design proposal .

We specialize in Outdoor Design . We use different tools to help you visualize your project. Swimming pools, patio covers, decks , fireplaces, firepits ,water features , artificial grass, concrete, porcelain , wood , pavers are some of our specialties. We use great visualization tools to help you understand our design proposal .


Hugs Construction

5.00(
4
)

Hugs Construction

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Hugs Construction, which stands for home up grade services, has over 20 years of experience and is a full service construction company in the San Fernando Valley and surrounding Los Angeles area. They work on projects of all sizes, such as kitchen and bath remodeling, wiring and electric work, soundproofing, installing windows and doors, specialty projects and new constructions. Hugs Construction prides itself on utilizing green products to sustain the environment. They strive to maintain high customer satisfaction with every job, making sure that their work lasts for many years to come.

Hugs Construction, which stands for home up grade services, has over 20 years of experience and is a full service construction company in the San Fernando Valley and surrounding Los Angeles area. They work on projects of all sizes, such as kitchen and bath remodeling, wiring and electric work, soundproofing, installing windows and doors, specialty projects and new constructions. Hugs Construction prides itself on utilizing green products to sustain the environment. They strive to maintain high customer satisfaction with every job, making sure that their work lasts for many years to come.


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.


ON GOLDEN POND INC

5.00(
1
)

ON GOLDEN POND INC

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Their specialty is construction, repair and ongoing maintenance of Koi ponds and water gardens.

Their specialty is construction, repair and ongoing maintenance of Koi ponds and water gardens.

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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Signal Hill, 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 Signal Hill, 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.