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Verified Reviews for Basement Waterproofing pros in Kapaa, HI

*The Angi rating for Basement Waterproofing companies in Kapaa, HI 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 Kapaa, HI 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 October 21, 2025

Find Basement waterproofing pros in Kapaa

Avatar for MRC Roofing, LLC

MRC Roofing, LLC

PO Box 17947
4.63(
35
)

MRC Roofing, LLC

PO Box 17947
4.63(
35
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Additional email - [email protected].

"We needed a new roof 26 years after MRC had last done our roof. We worked with Mark Hill to find a roof coating that would cool our house. He recommended a product called Permalock Metal roofing and a silicone coating for our flat roof. We have had the roof for 1 year and this summer has been nice and cool. Thank you to the team at MRC."

Ellen C on September 2021

Additional email - [email protected].

"We needed a new roof 26 years after MRC had last done our roof. We worked with Mark Hill to find a roof coating that would cool our house. He recommended a product called Permalock Metal roofing and a silicone coating for our flat roof. We have had the roof for 1 year and this summer has been nice and cool. Thank you to the team at MRC."

Ellen C on September 2021

Avatar for Menco Painting

Menco Painting

94-1044 Lumipolu St
4.42(
45
)

Menco Painting

94-1044 Lumipolu St
4.42(
45
)
Customers say: Quick response
109 local quotes requested

Menco Painting - Honolulu's premier choice for interior painting. Our team is efficient, professional, and timely, delivering high-quality results at an affordable price. Contact us today for all your painting needs.

"Very responsible and responsive, accommodating the needs. Great work!"

Naoko O on November 2024

Menco Painting - Honolulu's premier choice for interior painting. Our team is efficient, professional, and timely, delivering high-quality results at an affordable price. Contact us today for all your painting needs.

"Very responsible and responsive, accommodating the needs. Great work!"

Naoko O on November 2024

Basement Waterproofing questions, answered by experts

Topical sealers adhere to the surface of concrete to create a protective layer. In many cases, this is all you need for concrete that sees light to moderate traffic, such as your basement. Penetrating sealers, on the other hand, bond with the free lime in the top layer of concrete to form calcium silicate, which prevents liquid from passing through. This type of sealer protects the surface from water, oil, and gasoline spills.

Several factors can impact the cost of waterproofing your basement. Some of the most common cost factors include:

  • Location

  • Square footage

  • Cause of the water leak

  • Type of foundation

  • Accessibility

  • Waterproofing method

  • Materials

  • Contractor experience and availability

  • Engineering reports, if needed

  • Structural and other repairs

  • Permits

Some basement waterproofing methods can actually cause your water or moisture problems to get worse, which is why it’s so important to call in a professional who knows how to solve your underlying issue and use the appropriate waterproofing methods. An example of this would be applying latex waterproofing paint to the insides of your basement walls without fixing the water issue outside. Doing so can trap moisture in the basement walls, which can promote mold growth, peeling paint, and even damaged concrete. However, when done by a professional, the only downside to basement waterproofing is the up-front cost.

You don’t always need to install a dehumidifier in your encapsulated crawl space, but it might be a good idea in certain instances. If you notice obvious signs of condensation, mold, or musty smells permeating from your crawl space, a dehumidifier can help. It’s ideal for homes in humid areas.

In a worst case scenario, structural damage like rust on metal beams, rotting wood, and swelling on doors and windows can signal moisture problems that would benefit from a dehumidifier.

While it’s possible to live in a damp basement, it’s usually not healthy to do so. Damp air affects your breathing, and it also promotes mold growth and pest infestation that can make living in a damp basement dangerous. You should plan to resolve any moisture issues and set up preventative measures before using your basement as a living space.

The Kapaa, HI 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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