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*The Angi rating for Basement Waterproofing companies in Sundown, TX 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 Sundown, TX 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 June 18, 2026

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Avatar for The Bees Knees Service Co.
The Bees Knees Service Co.
5.0(
5
)

Serving Sundown, TX and surrounding areas

In business since 2014

Emergency services offered

Warranties offered

"Best service I have ever had,I recommend them to everyone,you won't be disappointed. Very nice and professional and prices are very reasonable. Superior service."
Response time30 mins
Response rate94%
Recommended by100%of homeowners
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Avatar for APE A/C, Plumbing & Electrical, LLC
APE A/C, Plumbing & Electrical, LLC
3.9(
7
)

Serving Sundown, TX and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"I really liked them.  They were really quick to getting out here and they did a good job.  There was a lot of digging going on.  They did it in a heartbeat.  I saw their truck out there and there were not many people in there.  I asked them if they do plumbing work and they agreed.  I asked them for their cards.  I did not know anybody else then.  They fixed everything for us and we did not have any problems because we had a lot of company during the wedding.  It was a problem that lasted for a long time and if it had to happen it would have when we had that many people around.  They got it fixed.  It was fixed first time and it was fixed right.  There were people going to the rest room constantly and there was no problem.  I would use them in the future."
Recommended by100%of homeowners
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Basement Waterproofing questions, answered by experts

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.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

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.

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation. 

Unfortunately, mold can grow pretty much anywhere, on any kind of surface. However, you’re most likely to see it in damp areas like basements or bathrooms, as well as anywhere there has been a water leak. Consult a local mold specialist to determine if certain areas of your home are prone to mold based on climate and other factors.

The Sundown, TX 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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