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Verified Reviews for Basement Waterproofing pros in Sitka, AK

*The Angi rating for Basement Waterproofing companies in Sitka, AK 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 Sitka, AK 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 September 23, 2025

Find Basement waterproofing pros in Sitka

Avatar for Rock Landscaping
Rock Landscaping
4.6(
65
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sitka, AK and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"They did a very fine job! They did what they say they're gonna do. They're on time , on budget and excellent. I would recommend them to anybody anytime."
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+87

Recommended by94%of homeowners
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Avatar for CMT Construction
CMT Construction
4.7(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sitka, AK and surrounding areas

In business since 2000

Free estimates

"Very good. They showed up when they said they were going to, they finished when they said they were going to, the quality and everything is good as expected."
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+23

Recommended by100%of homeowners
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Avatar for Heart and Home Builder
Heart and Home Builder
5.0(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sitka, AK and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"JK Construction is awesome. They responded quickly, came out the next day. Their work is awesome and I will definitely use them regularly."
Recommended by100%of homeowners
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Avatar for JR Contracting
JR Contracting
4.3(
6
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sitka, AK and surrounding areas

In business since 1987

Free estimates

"It was very good. They kept me in the loft. They answered all my questions and my concerns. I would recommend them.He was really good to work with."
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+37

Recommended by83%of homeowners
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Top Notch Contractors Inc
5.0(
2
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sitka, AK and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Top Notch team did a phenomenal job!! The performance by Top Notch was outstanding in every regard, very knowledgeable about the work I needed done and very thorough in their work. Foundation work is often messy but when the job was done, it is as it no work had been done there..the workers work in a very professional manner leaving the job site clean! The owner listens to your needs and is flexible! I have recommended Top Notch to a neighbor and will be recommending to many others!"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
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Recommended by100%of homeowners
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Basement Waterproofing questions, answered by experts

Mold growth is just one common sign of excess moisture in the bathroom. You may also see the paint in the room start to peel away from the walls, or that the walls remain wet for some time after you bathe.

Condensation on the windows is another sign that your bathroom has a potential moisture problem. The room itself may start to smell like mildew.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. 

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

The best ventilation for a crawl space is a fully encapsulated crawl space with its own separate ventilation system. If you go this route, ensure you have the proper crawl space code requirements done and dusted before encapsulating your crawl space with a moisture barrier and installing appliances that may not be up to the proper specs.

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

Yes, it is generally unhealthy and can be dangerous to live in a damp basement. The damp air can negatively affect your breathing and lungs, and the moisture promotes mold growth and pest infestations. Inhaling mold spores or waste particles from insects and rodents attracted to the moisture can be hazardous. This damp, moldy air can also circulate into your main living area. It is crucial to resolve any moisture problems and implement preventative measures before using your basement as a living space.

The Sitka, AK 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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