Does basement insulation need a vapor barrier?

• <div><p>Yes, basement insulation needs a vapor barrier due to its susceptibility to moisture seeping in from the outside of the house. You should install a moisture barrier before you <a href="https://www.angi.com/articles/how-to-install-insulation.htm">install insulation</a> or purchase insulation that comes prebuilt with a moisture barrier to avoid water damage in your insulation and costly mold and water remediation expenses. </p><p> </p></div>

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Q: What causes a basement wall to bow?

• <div><p>External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure&mdash;these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent. </p></div>

Q: How long does foundation sealant last?

• <div><p>You&rsquo;ll need to reseal the foundation <b>every five to 10 years, </b>depending on the sealant you&rsquo;ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.</p></div>

Q: What are signs of a moisture problem in the bathroom?

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

Q: Can you stay in a house with water damage?

• <div><p>It&rsquo;s normally possible to stay in a house with water damage, but it depends on many factors. If the water damage is minor, like from a small plumbing or window leak, there&rsquo;s minimal risk to you and your family members, especially if you catch it early. Major water damage from flooding is more likely to lead to mold growth and electrical issues, which means it&rsquo;s safer to relocate until you have a professional dry out the area and treat the mold.</p></div>

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Verified Reviews for Basement Waterproofing pros in Mountain View, HI

*The Angi rating for Basement Waterproofing companies in Mountain View, 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 Mountain View, 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 November 27, 2025

Reviewed in January 2015
The owner of the company Bill Crane and his brother are friendly and personable guys. Had no issues with the estimate or contract process. Work commenced on agreed date. Work took a couple days to complete. Crew was prompt and easy to work with. All old roofing material that was torn off...
Chico Roofing & Solar Works
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Reviewed in April 2013
We got 3 estimates off of Angie's List. Mr. Kehler responded promptly to our request for a quote to remodel our basement recreation room. We expanded the scope of work with him and his estimate was the most appropriate for the additional work we asked for. His men were courteous and always on...
David J. Kehler Drywall Inc.
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Reviewed in February 2013
The guy from Attics To Basements Estate Sales was really really good. They take 30% out of the estate sale, and they handled everything. I didn't have to be there or set anything up. All I did was come by two days later and pick up my check. There was NOTHING left. If I ever unfortunately had to...
Attics To Basements Estate Sales
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Reviewed in November 2012
When I contacted the company to arrange the date of service, I mentioned that the apartment was actually empty thinking that this would be easier that an apartment full of personal belongings. To my surprise I was told that actually that would cost me more because they considered this a "move...
Elite Cleaning Services LLC
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Reviewed in February 2012
After cleaning out a house in Brooklyn, we had to get rid of approximately 100 contractor size bags of household trash and 25 pages of recycling. I called several companies regarding garbage collection and decided to use Frank Panetta's Green Ex after speaking directly to Frank. Why his...
GreenEx Cleanouts
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Reviewed in March 2011
They did everything well. They were prompt, punctual, and professional. They were easy to deal with, and easy to talk to. They provided some green material. They did a good job because there hasn't been a drop of water in the basement since then. From the outside it looks like different house.
IMFELD NURSERY LTD
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Reviewed in November 2008
We noticed a leak from the bathtub, down into our basement. We called, a guy came out quickly to assess the problem, but he was the only person available that day. He came back the next day with help and fixed the problem quickly. They cleaned up the mess they had to make to access the pipes....
Goodson Plumbing Inc
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Dorian Visionheart Dyer

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Dorian Visionheart Dyer

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Customers say: True professional

Recommended by 100% of Angi customers

I am a self-taught artist, initially drawn to experiment with pastels and colored pencil, and now working with acrylic on canvas. My art speaks for itself.

Basement Waterproofing questions, answered by experts

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.

Yes, basement insulation needs a vapor barrier due to its susceptibility to moisture seeping in from the outside of the house. You should install a moisture barrier before you install insulation or purchase insulation that comes prebuilt with a moisture barrier to avoid water damage in your insulation and costly mold and water remediation expenses.

You’ll need to reseal the foundation every five to 10 years, depending on the sealant you’ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.

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.

It’s normally possible to stay in a house with water damage, but it depends on many factors. If the water damage is minor, like from a small plumbing or window leak, there’s minimal risk to you and your family members, especially if you catch it early. Major water damage from flooding is more likely to lead to mold growth and electrical issues, which means it’s safer to relocate until you have a professional dry out the area and treat the mold.

The Mountain View, HI homeowners’ guide to basement waterproofing services

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