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*The Angi rating for Basement Waterproofing companies in Seward, 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 Seward, 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 November 02, 2026

Top-Rated Basement waterproofing pros in Seward - Updated Nov 2026

Avatar for J&B Construction
J&B Construction
4.5(
2
)
Basement Drainage Channels - Install

Serving Seward, AK and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Kent has done everything he has said he would do along with give us some improvement suggestions that would either make the project better or save us some money."
Engineered footing system
1000 gal. ploy tank being installed
excavation completed and starting footer system.
Back filling the fox block footing system after insulation placed at lower footer.
DBL Clean out at tank. Preferred install method

+14

Recommended by100%of homeowners
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Avatar for Equity Builders
Equity Builders
1.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Seward, AK and surrounding areas

In business since 2005

Free estimates

Emergency services offered

We are committed to providing excellent customer service and professional work. We work to keep our overhead low to give the best prices to our customers. Check us out at equitybuildersak.com

Foundation Garage Addition
Fireplace
Addition
New Construction Drywall
Basement

+4

Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

It depends on what caused your basement flooding, the extent of the problem, and the risk of the flood continuing. If your flood is coming from a septic system or sewer line, breathing in the sewer gasses can be dangerous, so you should vacate. If the flood occurs from an ongoing natural disaster, relocating to a safe area might be wise. If you just have a plumbing leak or rainwater coming in, you can likely stay in the house if you don’t have electrical lines down there, but make sure you call in professionals to fix the issue immediately.

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

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.

Proper basement ventilation is very effective at reducing humidity. Without enough ventilation, your basement is prone to mold and moisture damage. Your basement should have as much natural ventilation via windows and doors as possible, and if your budget allows, you should also consider installing an ERV system to keep basement humidity levels at bay.

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

The Seward, 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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