Can you add a bathroom to an unfinished basement?

• <div><p>Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.</p></div>

Best basement remodelers near Captain Cook, HI

Q: How much does it cost to make bigger windows in a basement?

• <div><p>Making a window in a basement larger costs an average of $4,200. You&rsquo;ll need to pay an average of $550 to have a structural engineer plan the project, $500 to $1,500 for the installation labor, and an average of $2,200 for the excavation and window well installation. The remainder will go toward pulling permits, installing trim, and repairing drywall on the interior.</p></div>

Q: When should you not finish a basement?

• <div><p>Basements with persistent moisture problems or flooding shouldn&rsquo;t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage. </p></div>

Q: Can you finish a basement with no windows?

• <div><p>Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.</p></div>

Q: How long does it take to finish or remodel a basement?

• <div><p>The time it takes to finish or remodel a basement can vary significantly, ranging from a few weeks to several months or even up to a year. On average, the construction phase can take four to eight weeks, but the total project time can extend to three or four months when including planning and permits. The timeline depends on several factors, including the basement's size, design complexity, the scope of the work, and your contractor's availability. A more detailed breakdown for an average-sized basement might include: framing (3-5 days), electrical and rough-in plumbing (3-5 days), drywall installation (5 days), flooring (2-3 days), and final touches like painting and trim (about a week). If preliminary work like installing a waterproofing system or addressing structural issues is needed, the timeline could extend to six to twelve months. Factors like difficult access, material transport, and ventilation needs can also add to the project's duration.</p></div>

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Verified Reviews for Basement Remodel pros in Captain Cook, HI

*The Angi rating for Basement Remodel companies in Captain Cook, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.

*The HomeAdvisor rating for Basement Remodel companies in Captain Cook, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.

Last update on June 11, 2025

Reviewed in June 2025
Tyrone responded the same day as my inquiry. He came to the property and listened to what I needed, offering suggestions and asking good questions. He was able to schedule and complete the work quickly. The driveway is level and cleared. He did a magnificent job and we hope to have his help to...
precision Landcare
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Reviewed in December 2024
Keoni and his crew rehabbed a rental property that was in poor shape and did a great job. The job included painting the entire home's interior, installing a new vanity and replacing all screens. They were punctual, picked up supplies and were fair in their pricing. I plan on hiring them back...
KCR services
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Reviewed in September 2024
What a great experience. My yard was a massive project. 5 acres of borderline jungle and grass that was 8 feet high. Tyrone and his team got this done in 2 days. He responded immediately to my Inquiry and was able to get me on the schedule quickly and at a reasonable price, considering the...
Precision Services
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Reviewed in May 2024
I highly recommend Kaalaea Construction! We have contracted them on 4 construction projects. They built a deck extension which was perfect! Then two en-suite room additions and remodeled our master bathroom. Ray is a gentleman! His crew are so respectful and a pleasure to have around. The...
Kaalaea Construction LTD
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Reviewed in September 2023
The is the best choice for a seamless move. I am a satisfied customer.
Zebna
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Reviewed in August 2023
Very intelligent contractor easy to work with perfect results. Project still in process but excellent so far
TDG Contracting LLC
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Reviewed in May 2023
Oni & 3 of her gals did a whole house deep clean for the first time today. Four hours total onsite work time. Zoned effort floor-to-floor allowed for inspection & fixes. Gals didn't replace furniture where it was originally, but at least it was moved! Generally pleased with results.
Ony'x Cleaning Service
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Reviewed in September 2022
Project came out nicely. He is very friendly, it is a family owned business. Easy to approach and to talk to. Gets the job done within the time frame.
Espinoza Property Services, LLC
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Reviewed in June 2022
work not yet done but so far satisfied - waiting on fence supply from Lowes
N Nobriga Fencing Inc
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Reviewed in October 2021
Prompt, professional and friendly. Cleaned, repaired and adjusted gutters so they would drain correctly.
Roof 2 Tank
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Top-Rated Basement remodelers in Captain Cook - Updated Nov 2026

Schmidt General Contracting Inc

New to Angi

Basement - Remodel

Serving Captain Cook, HI and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

Schmidt General Contracting, is a fully licensed company. We work on a wide range of different projects as small remodeling kitchens and bathrooms to full home remodels and custom builds.

9 neighbors recently requested a quote

Serving Captain Cook, HI and surrounding areas

In business since 2021

Free estimates

Warranties offered

"Good, quality work, but the workers do not speak english well. You need to watch and pay attention to make sure instructions were relayed correctly."

+14

Response time2 days

Response rate98%

Recommended by100%of homeowners

Serving Captain Cook, HI and surrounding areas

In business since 2006

Credit card accepted

"Amanda was really very good! At first I was very skeptical, thinking why did I pay money to just speak with someone on the phone about my kitchen remodel project... but after just a few minutes of her addressing some of the issues/questions I emailed to her earlier, I knew it was worth it. It was very clear that she knew her business and she gave me several ideas that I had not even thought about. I told her that I would definitely recommend her to friends and I will very likely use her again myself for my next home project!

"

California Client Saves with HMD Designer Discounts

Recommended by54%of homeowners

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Highly Skilled Help, LLC

New to Angi

Basement - Remodel

Serving Captain Cook, HI and surrounding areas

In business since 2004

Free estimates

Highly Skilled Help has been fixing up and beautifying the west side of the Big Island for years. With over 20 plus years of experience, licensed, and insured, assures you that you are getting the best man for your project. Call us today, and we�ll be right over. Mahalo!

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Omega Construction of Kona, Inc.

New to Angi

Basement - Remodel

Serving Captain Cook, HI and surrounding areas

In business since 2000

Free estimates

At Omega, we are the total package. We provide a complete features including flexible plans, site preparation, materials, general contracting, outstanding interior options, and project management!

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Basement Remodel FAQs, answered by experts

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

Making a window in a basement larger costs an average of $4,200. You’ll need to pay an average of $550 to have a structural engineer plan the project, $500 to $1,500 for the installation labor, and an average of $2,200 for the excavation and window well installation. The remainder will go toward pulling permits, installing trim, and repairing drywall on the interior.

Basements with persistent moisture problems or flooding shouldn’t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage.

Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.

The time it takes to finish or remodel a basement can vary significantly, ranging from a few weeks to several months or even up to a year. On average, the construction phase can take four to eight weeks, but the total project time can extend to three or four months when including planning and permits. The timeline depends on several factors, including the basement's size, design complexity, the scope of the work, and your contractor's availability. A more detailed breakdown for an average-sized basement might include: framing (3-5 days), electrical and rough-in plumbing (3-5 days), drywall installation (5 days), flooring (2-3 days), and final touches like painting and trim (about a week). If preliminary work like installing a waterproofing system or addressing structural issues is needed, the timeline could extend to six to twelve months. Factors like difficult access, material transport, and ventilation needs can also add to the project's duration.

The Captain Cook, HI homeowners’ guide to basement remodels

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

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