Get matched with top basement waterproofing pros in Lanai City, HI

Q: Should I waterproof the interior or exterior of my basement?

• <div><p>Several factors dictate if you should <a href="https://www.angi.com/articles/it-better-waterproof-crawl-space-inside-or-outside.htm">waterproof the interior or exterior of your basement</a>. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor. </p></div>

Q: What is the most challenging part of finishing a basement?

• <div><p>Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.</p></div>

Q: What are the most expensive foundation repairs?

• <div><p>The most expensive foundation repair method is to install<b> helical piers</b>. Helical piers are a type of steel pier used to support sinking foundations in areas with poor soil conditions or deep bedrock. This foundation repair method can cost up to <b>$3,000 per pier</b>, including labor, because of its material and labor-intensive installation process. Total foundation repair costs can easily reach over $20,000 using this method.</p></div>

Q: Is it safe to live in a house with foundation problems?

• <div><p>It can be safe to live in a house with minor foundation problems as long as the issues are checked and monitored by a professional. Minor cracks are rarely a cause for structural concerns, but signs of leaks, sinking, or bulging walls should be strongly scrutinized by a foundation specialist. Similarly, it's always smart to hire a professional when you're concerned about <a href="https://www.angi.com/articles/undisclosed-foundation-damage-and-previous-repairs.htm">buying a house with foundation repairs</a>. </p></div>

Q: What adds the most value to a basement?

• <div><p><a href="https://www.angi.com/articles/finished-vs-unfinished-basement.htm">Finishing an unfinished basement</a> adds the most value, with an average return of 70% or $22,400. A bathroom addition in the basement will provide an ROI of 75%, but the higher cost will leave you with a lower actual return of $9,000, on average. Finishing a basement and adding a kitchen, bathroom, and bedroom to rent the space will leave you with the highest possible ROI, as you could see well over 100% if you rent the space out long-term.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your basement waterproofing project in Lanai City, HI?

Select your specific project to find the pro for you.

Verified Reviews for Basement Waterproofing pros in Lanai City, HI

*The Angi rating for Basement Waterproofing companies in Lanai City, 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 Lanai City, 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 24, 2025

Reviewed in June 2022
We hired DM renovation,LLC for my bathroom remodel. I want to install a steam SPA shower, a soaking Tub, a SmartBidet in my bathroom. I want a high quality and good workmanship in the job. Drium and his crew work very hard to delivered it on time and gave me -my friends and family described...
DM Renovation, LLC
Request a quote
Reviewed in March 2017
Fred and his father-in-law were terrific to work with and the workers did an excellent job with top quality work. We really appreciated the time Fred and his father-in-law took to explain various options for materials (particularly flooring) and what work would be accomplished. Fred's philosophy...
Premier Floors Inc
Request a quote
Reviewed in December 2013
Only interested in insulating attic and basement. No general info regarding doors, windows, and other sources of heat loss
Mark Group
Request a quote
Reviewed in August 2013
I had called 4 other electricians having to leave messages and none returned my call. Jerry Tamanaha answered his phone and advised me immediately and scheduled a time he could come to my home. He had to replace some damaged wire and reinstalled a new GFCI receptacle I had tried to install...
JERRY H TAMANAHA LLC
Request a quote
Reviewed in July 2013
Scott was prompt, professional, courteous,and knowledgeable. He determined that we did not have a poured cement basement. He referred us to another Angie's List provider. He also called the provider to tell him what he found and checked back with us to see how the repair was progressing. He did...
VALLIERES WATERPROOFING SYSTEMS LLC
Request a quote
Reviewed in May 2013
There were two men that came to my home, one seemed very knowledgeable and the other man seemed extremely underqualified. When they brought the tube in through my home they scratched the drywall and paint throughout my halls. When I asked the man to show me how he had cleaned the dryer, he...
Andersons Mechanical Service LLC
Request a quote
Reviewed in May 2012
David started with a questionnaire that our son eventually filled out (so busy at work) - that survey detailed his likes and dislikes in all kinds of areas and his dreams for the basement. Our son is smart and told David that when it came to colors, fixtures, and other choices of style that...
PURE Home Design
Request a quote
Reviewed in October 2011
My basement flooded due to the recent weather (rain etc). Spoke with a few companies. All Aspects was the only company that responded quickly and worked closely to help me remedy my basement water issues. I was very happy with the work, timeliness of the work, and the care taken to make me...
All Aspects Waterproofing
Request a quote
Reviewed in September 2005
WE HAD THIS DONE WHILE WE WERE AWAY, HAVING HAD EXCELLENT EXPERIENCES WITH BOB AND HIS COMPANY PREVIOUSLY. WE DID NOT GET OTHER ESTIMATES. THE PRICE SEEMED RATHER HIGH TO US. THE INTERIOR PAINT JOB LOOKS GOOD. SHELVES WERE LEFT AT A DANGEROUS TILT - LUCKILY NOTHING FELL OR BROKE. THE...
The House Doctors
Request a quote

Find Basement waterproofing pros in Lanai City

Dorian Visionheart Dyer

4.80(

)

Dorian Visionheart Dyer

4.80(

)

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

Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

The most expensive foundation repair method is to install helical piers. Helical piers are a type of steel pier used to support sinking foundations in areas with poor soil conditions or deep bedrock. This foundation repair method can cost up to $3,000 per pier, including labor, because of its material and labor-intensive installation process. Total foundation repair costs can easily reach over $20,000 using this method.

It can be safe to live in a house with minor foundation problems as long as the issues are checked and monitored by a professional. Minor cracks are rarely a cause for structural concerns, but signs of leaks, sinking, or bulging walls should be strongly scrutinized by a foundation specialist. Similarly, it's always smart to hire a professional when you're concerned about buying a house with foundation repairs.

Finishing an unfinished basement adds the most value, with an average return of 70% or $22,400. A bathroom addition in the basement will provide an ROI of 75%, but the higher cost will leave you with a lower actual return of $9,000, on average. Finishing a basement and adding a kitchen, bathroom, and bedroom to rent the space will leave you with the highest possible ROI, as you could see well over 100% if you rent the space out long-term.

The Lanai City, HI homeowners’ guide to basement waterproofing services

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

See all articles

Dan Simms
•
Oct 17, 2025Oct 17, 2025
How Much Does Crawl Space Encapsulation Cost? [2025 Data]
A variety of factors can affect your total crawl space encapsulation cost. Here’s a breakdown of the cost of this project, whether you hire a pro or DIY.
Dan Simms
•
Nov 3, 2025Nov 3, 2025
How Much Does Crawl Space Repair Cost? [2025 Data]
Crawl space repair costs can seem intimidating, but putting them off can lead to bigger issues. Learn about repair costs in this guide to set your budget.
Justine Harrington
•
Nov 5, 2025Nov 5, 2025
How Much Does It Cost to Replace a Sump Pump? [2025 Data]
Sump pump replacement costs depend on the type of unit you have and the cost of labor, which varies by region. Read on to find out more about what to expect.
Ginny Bartolone
•
May 23, 2025May 23, 2025
Who Cleans Crawl Spaces? The Best Pros to Hire
If you are wondering who cleans crawl spaces, don't pick up that broom and dustpan until you read this first. This is a job for experts and not DIYers.
Dan Simms
•
Nov 4, 2025Nov 4, 2025
How to Get Rid of Musty Smells in Your Basement for Good: 4 Options and Prevention Methods
Wondering how to get rid of musty smells in your basement? Get rid of them permanently using this DIY guide and learn when to call a pro.
Paige Bennett
•
Nov 20, 2024Nov 20, 2024
Here’s Why Your Sump Pump Isn’t Working and What to Do About It
When your sump pump is not working, there are a few common culprits. Use this guide to discover everything you need to know about sump pump troubleshooting.