Get matched with top basement waterproofing pros in Bayside, CA

Q: How do I keep water away from my crawl space?

• <div><p>Proper drainage is the only way to ensure that your crawl space stays dry. Depending on your property and the extent of your issue, you might need to consider a gutter system, a French drain, or sump pumps to avoid and handle water and moisture under your home. Dehumidifiers can also help to prevent moisture from accumulating if you have a high-humidity environment.</p></div>

Q: What are the disadvantages of a walkout basement?

• <div><p>Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you&rsquo;re working with a contractor who has extensive experience with this kind of basement. </p></div>

Q: How can I prevent ductwork from sweating in a crawl space?

• <div><p>Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.</p></div>

Q: Are slab leaks common?

• <div><p>Yes, slab leaks are fairly common, especially in older homes and places that are prone to earthquakes which can move home foundations. </p></div>

Q: How can I protect my house from a sump pump failure?

• <div><p>Thankfully, you do have a few <a href="https://www.angi.com/articles/how-keep-your-sump-pump-running.htm">sump pump backup options</a> in case it fails. One option is a battery-powered backup sump pump. Another option is using a portable backup generator as a power supply for your sump pump. Unlike a battery-powered backup which has limited power, a generator can run around the clock for as long as you need it. </p><p>Or you can opt for a water-powered backup pump, which uses your home&rsquo;s water supply as a source of power. However, this may not be the best option if you find your house frequently has low water pressure.</p></div>

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Verified Reviews for Basement Waterproofing pros in Bayside, CA

*The Angi rating for Basement Waterproofing companies in Bayside, 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 Bayside, 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 December 12, 2025

Reviewed in December 2025
They did so much more than plumbing! After analyzing the problem with an outside waterline, they removed offensive roots, bulbs, and foliage. They cleared the area and replaced plastic pipes with metal ones. The bill was reasonable and the water company is no longer seeing several gallons of...
Blossom Landscaping And Handyman Service
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Reviewed in October 2025
Deed’s gutter service did an excellent job installing my leaf filter gutter protection device he repaired a crack in my gutter. He fixed a drain pipe, cleaned my gutters excellent job. Very friendly knowledgeable and was on time. Highly recommendable
Good Deeds Gutter Service
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Reviewed in June 2025
I contacted K2V Concrete to provide a quote for a concrete driveway at a residential home in McKinleyville. We are a non-profit company located in the San Francisco Bay Area and I was having difficulties finding someone to do the work. Michael was so helpful and was able to complete the work...
K2V Concrete, Inc.
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Reviewed in June 2025
They worked long hours even weekend to get job done. It?s a wonderful fence fence on a sloped backyard they also cleaned up all the mess
Green Sun Landscaping
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Reviewed in July 2024
If you need anything under the realm of plumbing, this is the Man to call. Quality work, and doesn't take 3 months to get back to you.
Coast to Coast Plumbing
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Reviewed in August 2023
The paint looks awesome and the bill was less than the estimate! As I look around our house, I see several projects that Lou and his company have completed--bathroom, lighting, windows, outdoor patio--and they're all first class! We have several other projects in mind and will trust Lou...
Simple Visions
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Reviewed in May 2023
We just purchased and installed a new shed from Junior Barns and we love it! We also bought one back in 2017 and it is still in wonderful shape. My wife and I are highly recommending this company and its products.
Junior Barns
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Reviewed in February 2023
They finished a drywall works for me.
Cutting edge finishes
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Reviewed in September 2022
Fabulous; since fence was close to our garage and right next to neighbor's garage, it was a tricky situation. S-V was able to modify our gutters and convince the neighbor to allow installation of gutters. Furthermore all of the S-V workmen were observant, helpful and amazing workers. Since...
Simple-Visions Home Remodeling
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Reviewed in June 2022
Construction employees were very efficient. Reported for work on time.] Cleaned up after their work. They removed the bathtub and installed a walk-in Shower with two shower heads. Nice doors with horizontal handle on both doors. No skimping on the product. First Class. Yes I would have...
Hunter and Son Construction, Inc.
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Find Basement waterproofing pros in Bayside

Palm Construction, Inc.

5.0(

112

)

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bayside, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Very professional. Completed the job in two weeks. The deliverables were as promised. They were very independent, requiring only minimal involvement from the client. However, communication with the owner could be enhanced a bit."

Recommended by100%of homeowners

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Redwood Plumbing and Drain Cleaning

4.7(

)

Basement Drainage Channels - Install

Serving Bayside, CA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"They were very prompt to an emergency situation, and came out after asking about the pipe. They replaced my damaged pipe quick and efficiently and everything was back to working order within the hour."

+12

Recommended by100%of homeowners

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Hampton Enterprise LLC

3.7(

)

Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bayside, CA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"I only use James when I need some work done to my house. He responds fast, gets the work done quicker than just about anyone else I've ever used and seems very concerned with leaving his customers happy."

Recommended by60%of homeowners

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Daniel White

New to Angi

Basement Drainage Channels - Install

Serving Bayside, CA and surrounding areas

In business since 2017

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Basement Waterproofing questions, answered by experts

Proper drainage is the only way to ensure that your crawl space stays dry. Depending on your property and the extent of your issue, you might need to consider a gutter system, a French drain, or sump pumps to avoid and handle water and moisture under your home. Dehumidifiers can also help to prevent moisture from accumulating if you have a high-humidity environment.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

Yes, slab leaks are fairly common, especially in older homes and places that are prone to earthquakes which can move home foundations.

Thankfully, you do have a few sump pump backup options in case it fails. One option is a battery-powered backup sump pump. Another option is using a portable backup generator as a power supply for your sump pump. Unlike a battery-powered backup which has limited power, a generator can run around the clock for as long as you need it.

Or you can opt for a water-powered backup pump, which uses your home’s water supply as a source of power. However, this may not be the best option if you find your house frequently has low water pressure.

The Bayside, 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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