Top-rated basement waterproofing pros.

Best basement waterproofing pros near Santa Barbara, CA

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Top-Rated Basement waterproofing pros in Santa Barbara - Updated Nov 2026

Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Santa Barbara, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"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!!"
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+323

Response time10 hrs
Response rate100%
11 neighbors recently requested a quote
Palm Construction, Inc.
5.0(
112
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Santa Barbara, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Recommended by100%of homeowners
Palm Construction, Inc.
5.0(
90
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Santa Barbara, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"We worked with Ali (sales manager) and Tony (project manager), who took the time to design a project that made sense for our property and our budget, made a number of suggestions and recommendations and were never pushy or tried to "sell" us on something. The crew really went above and beyond to provide top quality workmanship and overall we were in very good hands. Highly recommended!"
Recommended by100%of homeowners
Avatar for OM Construction Inc
OM Construction Inc
4.7(
151
)
Basement Drainage Channels - Install

Serving Santa Barbara, CA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Tony and his crew arrived on schedule, worked hard and did a great job on a complicated roof. The workers were pleasant as well as skilled. Very satisfied with both price and result. Would use again for other construction services they provide. Roof will outlast me."
Roofing Project
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+86

Recommended by95%of homeowners
Avatar for GM Pacific Pro Construction
GM Pacific Pro Construction
4.5(
243
)
Basement Drainage Channels - Install

Serving Santa Barbara, CA and surrounding areas

In business since 2001

Free estimates

"Gil is a pleasure to work with. After my initial contact he came by as scheduled to review the job site and meet with me. Work was scheduled that same week and completed in 3 work days. Gil’s crew was skilled and efficient. Gil did note that I had some drainage issues and recommended the addition of drains to the concrete project. His price for the drain was competitive and would insure that my side yard drainage issues that occurred during heavy rains are remedied. Gil and his crew poured/finished a beautiful new walkway. They also did an excellent clean up when finished. I highly recommend GM Pacific Pro (Gil) and plan to use his excellent skills in the future for more projects."
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+20

Recommended by89%of homeowners
Avatar for Richco Plumbing Inc
Richco Plumbing Inc
4.6(
107
)
Basement Drainage Channels - Install

Serving Santa Barbara, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Extremely well. Technician was on time, courteous, and completed the repair well within the time estimate. This was my first time calling Richco for a plumbing issue and I will definitely will be using them again."
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Recommended by88%of homeowners
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Basement Waterproofing FAQs, answered by experts

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

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

Sandbags are the most common and efficient way to create a flood barrier at home. Some local authorities pass them around to homes before the risk of a flood. Otherwise, you can use flood-proof house materials, like burlap or woven plastic bags, to make sandbags and fill them with sand or cat litter. Make sure that when you stack them, they’re tightly laid on top of each other, creating the effect of a firm wall against accumulating water.

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

The Santa Barbara, CA homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.