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Best basement waterproofing pros near Salem, WV

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

Avatar for Alford Foundation and Crawl Space Repair
Alford Foundation and Crawl Space Repair
3.7(
120
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Salem, WV and surrounding areas

Approved

In business since 1963

Free estimates

Emergency services offered

"Alford had waterproofed my basement 2 years ago & I've been very pleased with that project. This time, a mouse had gotten in thru an open garage door when weather started getting cold, and had found a hole in a cinder block wall and had babies! I had already trapped and killed 5 before calling Alford. The rep was very polite, professional, knowledgeable, etc. He quoted me a price which was very reasonable but I decided to wait & see...it's been 6 days since last one killed & I still have traps set throughout the house but if I have any further issues, I would not hesitate to call Alford!"
Encapsulation and Waterproofed Crawl Space
Dirty crawl space with improper lining
CleanSpace Liner and SmarJacks
CleanSpace Liner
Dirty, vented crawl space

+5

Response time1 day
131 neighbors recently requested a quote
Recommended by79%of homeowners
Tri-State Crawlspace Repair and Building Efficiencies LLC.
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Salem, WV and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. \nWe uphold a standard of integrity bound by fairness, honesty, and personal \nresponsibility. Our distinction is the quality of service we bring to our customers. \nAccurate knowledge of our trade combined with ability is what makes us true \nprofessionals. Above all, we are watchful of our customers' interests and make \ntheir concerns the basis of our business.

20 neighbors recently requested a quote
Avatar for Machen Home Improvements
Machen Home Improvements
4.0(
77
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Salem, WV and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Jodie Machen is an outstanding workman and job manager. Our home is a old steel-baron era mansion from 1929. It needed a new roof and significant association flashing work. Jodie Machen was the perfectionist I was looking for. Not only did he do an immensely careful job, but he was thorough in his communication with me throughout, calling to touch base not just on formal aspects of the job, but also on convenience questions. His personal presence on the job made sure that his standards translated to his work crew, and together they presented a polite and professional group who I felt very happy to have around my little kids. I would unhesitatingly recommend this company! As an aside, Jodie Machen also fixed a difficult plumbing problem for us, so I suppose he would be great for other similar work as well!"
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+117

Recommended by90%of homeowners
Avatar for Diggers Construction
Diggers Construction
5.0(
7
)
Basement Drainage Channels - Install

Serving Salem, WV and surrounding areas

In business since 2001

"Excavation went great, staff did a good job, also complied with all City regulations, never had an issue . Everything was done as we discussed No hidden cost of any kind. Reasonable priced."
Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

Whether your homeowners insurance covers slab leak repairs depends on your specific policy and the cause of the leak. Many policies cover slab leaks resulting from a covered peril, such as a natural disaster, a falling tree, or pipes freezing and bursting within the slab. However, damage caused by invading tree roots, corrosion, or leaks from appliances may not be covered by a standard policy. It's a good idea to also check your home warranty plan for potential coverage if an appliance is the source. Contact your insurance provider for a full explanation of what your policy covers.

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.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

The Salem, WV homeowners’ guide to basement waterproofing services

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