Get matched with top basement waterproofing pros in Sylmar, CA
There are 12 highly-rated local basement waterproofing pros.
Verified Reviews for Basement Waterproofing pros in Sylmar, CA
*The Angi rating for Basement Waterproofing companies in Sylmar, 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 Sylmar, 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 July 05, 2025
Basement waterproofing pros in Sylmar
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
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!
Canada Builders - Elevating Homes, Transforming Lives Canada Builders specializes in 7-layer waterproofing systems, decks, balconies, and exterior projects. We deliver excellence through quality craftsmanship, top-tier materials, and a customer-centric approach. 7-layer Waterproofing Systems: Unmatched protection for a dry, secure interior. Deck Construction: Stylish, durable outdoor living spaces. Balcony Renovations: Tailored transformations for a cozy retreat. Exterior Work: Curb appeal enhancements through siding and facelifts. Value Proposition: Expertise: Years of experience and skilled craftsmen. Quality Materials: Prioritizing durability and aesthetics. Customer-Centric Approach: Transparent communication and reliable service. Background and Staff: Canada Builders, a trusted name for number of years, boasts a proven track record and a team of passionate professionals. Owner-operated or staff-driven, expect capable hands for your project. Why Choose Canada Builders: Proven Track Record: Successful projects and satisfied clients. Attention to Detail: Excellence in finer details. Timely Execution: Efficient project completion. Embark on your home remodeling journey with Canada Builders. Contact us today to turn your vision into reality.
Canada Builders - Elevating Homes, Transforming Lives Canada Builders specializes in 7-layer waterproofing systems, decks, balconies, and exterior projects. We deliver excellence through quality craftsmanship, top-tier materials, and a customer-centric approach. 7-layer Waterproofing Systems: Unmatched protection for a dry, secure interior. Deck Construction: Stylish, durable outdoor living spaces. Balcony Renovations: Tailored transformations for a cozy retreat. Exterior Work: Curb appeal enhancements through siding and facelifts. Value Proposition: Expertise: Years of experience and skilled craftsmen. Quality Materials: Prioritizing durability and aesthetics. Customer-Centric Approach: Transparent communication and reliable service. Background and Staff: Canada Builders, a trusted name for number of years, boasts a proven track record and a team of passionate professionals. Owner-operated or staff-driven, expect capable hands for your project. Why Choose Canada Builders: Proven Track Record: Successful projects and satisfied clients. Attention to Detail: Excellence in finer details. Timely Execution: Efficient project completion. Embark on your home remodeling journey with Canada Builders. Contact us today to turn your vision into reality.
JRD Construction is located in Los Angeles, California and is proud to be Los Angeles leader among home remodeling contractors. We offer high quality materials and craftsmanship for all your home remodeling needs. With over 22 years of residential and commercial remodeling experience, JRD Construction has the expertise for your home improvement project!
"This company is an amazing company From the first meeting the guy was so nice and knowledgeable He helped me understand what was my problem and what are the possible solutions. would highly recommand!"
Orel Cali l on December 2023
JRD Construction is located in Los Angeles, California and is proud to be Los Angeles leader among home remodeling contractors. We offer high quality materials and craftsmanship for all your home remodeling needs. With over 22 years of residential and commercial remodeling experience, JRD Construction has the expertise for your home improvement project!
"This company is an amazing company From the first meeting the guy was so nice and knowledgeable He helped me understand what was my problem and what are the possible solutions. would highly recommand!"
Orel Cali l on December 2023
allstarepoxyandpaint.com specializes in Garage Epoxy Flooring for interior/exterior rooms, restaurants, aircraft hangars, patios , walkways , industrial/commercial concrete floors in the Los Angeles, San Fernando, Simi Valley, Santa Clarita Valley, Antelope Valley, and its surrounding Southern California neighbors. Our products can renew any concrete surface into a polished look that adds value and provides a durable, long lasting, functional solution to meet any residential or commercial need. Our most popular coating systems are solid and colored blended flake system that can have flake up to 1/4 inch to make your floor look more like Terrazzo. We also offer a full range of some of the newest epoxy creations such as Metallic Epoxy and our most unique coating Lava Flow Epoxy. we set the standard for decorative concrete in the Los Angeles, San Fernando Valley, Pasadena, Burbank, Glendale, Silver Lake, Beverly Hills, Encino, Westlake Village, Thousand Oaks, Simi Valley, Santa Clarita Valley, and Antelope Valley. All star epoxy and paint is Family Owned and Operated. As the owner of All star epoxy and paint I oversee all projects to their completion in the Art and Craftsmanship of Decorative Concrete. I can handle any size project from a 400 Sq. Ft. laundry, 400 sq.ft. garage to a 20,000 sq. ft airplane hangar. All star epoxy and paint uses state of the art diamond grinding system that captures 99.9% of the dust being removed from the concrete floor. I use Industrial products from Top manufacturers and we buy all our product locally and support the local economy. We cover all of Southern California. With over 10 years installing epoxy We can make your vision become a reality !
allstarepoxyandpaint.com specializes in Garage Epoxy Flooring for interior/exterior rooms, restaurants, aircraft hangars, patios , walkways , industrial/commercial concrete floors in the Los Angeles, San Fernando, Simi Valley, Santa Clarita Valley, Antelope Valley, and its surrounding Southern California neighbors. Our products can renew any concrete surface into a polished look that adds value and provides a durable, long lasting, functional solution to meet any residential or commercial need. Our most popular coating systems are solid and colored blended flake system that can have flake up to 1/4 inch to make your floor look more like Terrazzo. We also offer a full range of some of the newest epoxy creations such as Metallic Epoxy and our most unique coating Lava Flow Epoxy. we set the standard for decorative concrete in the Los Angeles, San Fernando Valley, Pasadena, Burbank, Glendale, Silver Lake, Beverly Hills, Encino, Westlake Village, Thousand Oaks, Simi Valley, Santa Clarita Valley, and Antelope Valley. All star epoxy and paint is Family Owned and Operated. As the owner of All star epoxy and paint I oversee all projects to their completion in the Art and Craftsmanship of Decorative Concrete. I can handle any size project from a 400 Sq. Ft. laundry, 400 sq.ft. garage to a 20,000 sq. ft airplane hangar. All star epoxy and paint uses state of the art diamond grinding system that captures 99.9% of the dust being removed from the concrete floor. I use Industrial products from Top manufacturers and we buy all our product locally and support the local economy. We cover all of Southern California. With over 10 years installing epoxy We can make your vision become a reality !
Angel Construction is a trustworthy and hardworking company started by Luis Angel and his father Juan who have been working in this field for many years. Striving to deliver excellent services with the best pricing available, Angel Construction is your solution to home foundation needs and other repairs.
"Hired Luis for a complete foundation replacement for a home on a hill in Angelino Heights. Luis was very easy to work with from coordinating plans/permits, keeping to schedule, and scope changes along the way (LA City was a PITA). Luis was easy to talk to and his pricing was the best out of 5+ bids we got. Work involved replacing the entire footing/foundation, leveling interior floors, adding a few posts and support beams under the raised foundation, and replacing front patio cement area. Luis was always looking out for our bottom line and very efficient. Normally the type of foundation replacement we did requires multiple inspector visits but Luis knew the process well and only required one inspection after work was done, saving us a lot of money. Change orders were always handled professionally and very fair to both sides. Everything turned out great (I'm writing this review a year later). I highly recommend Angel Construction and wouldn't hesitate to hire them again."
James S on May 2025
Angel Construction is a trustworthy and hardworking company started by Luis Angel and his father Juan who have been working in this field for many years. Striving to deliver excellent services with the best pricing available, Angel Construction is your solution to home foundation needs and other repairs.
"Hired Luis for a complete foundation replacement for a home on a hill in Angelino Heights. Luis was very easy to work with from coordinating plans/permits, keeping to schedule, and scope changes along the way (LA City was a PITA). Luis was easy to talk to and his pricing was the best out of 5+ bids we got. Work involved replacing the entire footing/foundation, leveling interior floors, adding a few posts and support beams under the raised foundation, and replacing front patio cement area. Luis was always looking out for our bottom line and very efficient. Normally the type of foundation replacement we did requires multiple inspector visits but Luis knew the process well and only required one inspection after work was done, saving us a lot of money. Change orders were always handled professionally and very fair to both sides. Everything turned out great (I'm writing this review a year later). I highly recommend Angel Construction and wouldn't hesitate to hire them again."
James S on May 2025
HIC ( Home Ideas and Construction ) is a Family owned Business we are construction company. We look forward to coming out to your home and exploring the best, most efficient and budget conscious way we can upgrade you home. Specialize in Remodeling kitchens, bathrooms, pavers, outdoor landscape, patio enclosures, painting and ADU's to garage conversion from blueprinting to city permits we can walk you thru . We know that you are putting your faith and trust in your contractor, we work hard to earn your trust and satisfaction. Our team of experts offers you the latest modern and eco-friendly, materials and aesthetic work that you can imagine.
"ADU construction Plumbing, electrical, drywall, Painting"
Elbia M on February 2025
HIC ( Home Ideas and Construction ) is a Family owned Business we are construction company. We look forward to coming out to your home and exploring the best, most efficient and budget conscious way we can upgrade you home. Specialize in Remodeling kitchens, bathrooms, pavers, outdoor landscape, patio enclosures, painting and ADU's to garage conversion from blueprinting to city permits we can walk you thru . We know that you are putting your faith and trust in your contractor, we work hard to earn your trust and satisfaction. Our team of experts offers you the latest modern and eco-friendly, materials and aesthetic work that you can imagine.
"ADU construction Plumbing, electrical, drywall, Painting"
Elbia M on February 2025
We are a company that provides all kinds of remodeling and construction services. We have more than 10 years of experience providing residential and commercial services in the city of Los Angeles CA and its surroundings. Our great values that prevail are: Professionalism, Experience and passion. No project will be too small or too big for us. Our careful attention to every detail and the strict use of the best tools to develop each project combined with daily practice in construction services has allowed us to develop an unmatched workforce. Our clients feel very happy with our services and we are also very happy with the satisfaction of our clients.
We are a company that provides all kinds of remodeling and construction services. We have more than 10 years of experience providing residential and commercial services in the city of Los Angeles CA and its surroundings. Our great values that prevail are: Professionalism, Experience and passion. No project will be too small or too big for us. Our careful attention to every detail and the strict use of the best tools to develop each project combined with daily practice in construction services has allowed us to develop an unmatched workforce. Our clients feel very happy with our services and we are also very happy with the satisfaction of our clients.
Water Damage Services is a leader in the property restoration industry. Servicing Ventura, Santa Barbara, and Los Angeles, our team of dedicated experts is ready to help, 24/7. We are the experts at emergency water mitigation, clean up of sewage and animal droppings, mold remediation and restoring your properties to pre-loss condition. As emergency responders, we arrive on-site within 90 minutes to immediately stop any secondary damage to your residential or commercial property. We can also help with pack outs and inventory cleaning as a result from a water damage crisis.
"Fabulously! The job was done professionally, as well attention to perfection as it was their home. All was given with caring and concern."
Cathy N on April 2021
Water Damage Services is a leader in the property restoration industry. Servicing Ventura, Santa Barbara, and Los Angeles, our team of dedicated experts is ready to help, 24/7. We are the experts at emergency water mitigation, clean up of sewage and animal droppings, mold remediation and restoring your properties to pre-loss condition. As emergency responders, we arrive on-site within 90 minutes to immediately stop any secondary damage to your residential or commercial property. We can also help with pack outs and inventory cleaning as a result from a water damage crisis.
"Fabulously! The job was done professionally, as well attention to perfection as it was their home. All was given with caring and concern."
Cathy N on April 2021
Foundation and Structural Repair Contractors. Family owned and operated, based in Los Angeles, and serving the Greater Los Angeles area, Foundation Repair LA Inc. represents over 55 years of combined experience in structural repair, providing an unparalleled level of workmanship and customer service.
"I highly recommend them to everyone that needs help with their foundation. Very helpful and knowledgeable"
Rebecca H on October 2022
Foundation and Structural Repair Contractors. Family owned and operated, based in Los Angeles, and serving the Greater Los Angeles area, Foundation Repair LA Inc. represents over 55 years of combined experience in structural repair, providing an unparalleled level of workmanship and customer service.
"I highly recommend them to everyone that needs help with their foundation. Very helpful and knowledgeable"
Rebecca H on October 2022
FAQs for basement waterproofing projects in Sylmar, CA
Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:
Water in your basement, including damp walls or puddles on the floor
Mold spots in your basement
Musty smells or odors
Warped doors or walls
Cracks in walls
Insect issues, such as cockroaches and termites
You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home.
However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.
Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.
Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.
The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in.
If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.
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