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>

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>

How much does it cost to finish a crawl space?

• <div><p>If you don’t wish to dig it out and convert it into a finished basement, you can still <a href="https://www.angi.com/articles/how-much-does-crawl-space-encapsulation-cost.htm">encapsulate your crawl space</a> to protect it from damage for an average cost of <b>$5,500</b>. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.</p></div>

What is the best way to waterproof your basement?

• <div><p>The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.</p><p>If you have more significant water problems, the solution will need to be more robust:</p><ul><li><p>For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.</p></li><li><p>For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.</p></li></ul><p>Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.</p></div>

Best basement waterproofing pros near Seward, AK

Q: How is damp proofing different from waterproofing?

• <div><p>Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it&rsquo;s more protective, waterproofing typically costs more than damp proofing. </p></div>

Q: How much does it cost to finish a crawl space?

• <div><p>If you don&rsquo;t wish to dig it out and convert it into a finished basement, you can still <a href="https://www.angi.com/articles/how-much-does-crawl-space-encapsulation-cost.htm">encapsulate your crawl space</a> to protect it from damage for an average cost of <b>$5,500</b>. Finishing a crawl space beyond this isn&rsquo;t really worthwhile, as the low ceilings mean you won&rsquo;t be able to use the area as living space.</p></div>

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Verified Reviews for Basement Waterproofing pros in Seward, AK

*The Angi rating for Basement Waterproofing companies in Seward, AK 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 Seward, AK 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 July 15, 2026

Reviewed in July 2026
Took 14 months to do a 6 week job. Had concrete pad done October 2024. Came over summer of 2025 and didn&#39;t finish until 12-31-25... and said that job was done. They didn&#39;t screw down metal on crest of roof nor both sides of flashing on roof. Did mud and taping in cold...
Schwartz Builders
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Reviewed in June 2025
I could not put into words the attention to detail, customer service, and quality of workmanship ship . They treated me like family. l am definitely recommending them to others. I plan to use them again in the future. They worked within my budget. Thank you for sending them my way. On the hand,...
Cajun Alaskan Services
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Reviewed in December 2024
Very easy to communicate with and listened to exactly what I wanted. Definitely a great experience and will be using them in the future! Can’t express enough how impeccable the overall work was!
Alaska Restoration, Remodel, and Roofing (AR3) LLC
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Reviewed in December 2024
I saw Terry doing some outstanding stucco repair on a building in Seward and I approached him about doing a repair on my motel called the Tides Inn Seward Alaska. Terry come over to give me an estimate and he noticed that my sidewalk leading up to my main office lobby was in terrible shape....
Quality Craft Services
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Reviewed in October 2023
This was one of the most miserable experiences of my life, during an already traumatic time, and I highly recommend you looking elsewhere before even considering this company. - I was a local move and you'd think the logistics of a local endeavor would be way simpler than anything long distance,...
Royal Alaskan Movers
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Reviewed in October 2023
Highly recommended, professional and knowledgeable in all aspects. Friendly and polite guys, they helped with our color selections and it was a blessing!!
PISTRO'S PAINTING, LLC
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Reviewed in February 2022
Mike is very easy to work with. He is very attuned to detail and has your interests at the top of his list.,,making sure you are happy with each feature and itâ s just the way you want it. His finished product is a thing of beauty! I have given his number to friends, promising they will be...
Nichols Construction
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Reviewed in June 2021
Very professional and it was a pleasure to work with them.
Pete's Welding
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Reviewed in November 2020
From the moment of setting up an appointment to having the work done, all was accomplished in a professional, knowledgeable and friendly way. I had four windows (big) and outside door done the first round starting with Jesse and Bobby, and two windows the second round, Brian, Jacob and Tyrone....
Renewal by Andersen of Alaska
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Reviewed in August 2020
She lives in Ninilchik and the service I needed was in Seward. She was willing to drive all the way out and do it for me, but I was on a time crunch and had to find someone that could do it ASAP. She went above and beyond for me and I appreciate her help so much! Such a sweet lady!
Linda Lou's B&B Adventures
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Top-Rated Basement waterproofing pros in Seward - Updated Nov 2026

911 Plumbing and Heating Services

4.6(

)

Basement Drainage Channels - Install

Serving Seward, AK and surrounding areas

In business since 2018

Free estimates

Emergency services offered

Serving Anchorage and the Mat-su valley. we service and install all plumbing and heating systems at a reasonable rate. Froze up? cold? no heat? water leaks? give us a call. WE DO NOT CHARGE FOR CALL OUTS OR AFTER HOURS FEES.

+11

Recommended by83%of homeowners

Basement Drainage Channels - Install

Serving Seward, AK and surrounding areas

In business since 2000

Free estimates

Emergency services offered

J&B Construction is a reliable General contractor with house and septic endorsement that provides quality service from Sterling, Alaska sense 2013.\n\nFor more information, visit our website, text, or give us a call at (907) 953-1555\n\nWe serve in Sterling, Soldotna, Kalifornsky, Kenai, Nikiski, Ridgeway, and the surrounding areas.\n\nSeptic System Service, Septic System Repair, Septic Tank Installation, Septic System Maintenance, Septic Tank Replacement, Septic line Cleaning via jet, Septic Installation, Septic Repair.\n\n***Please call Peninsula Pumping for your septic pumping needs at 907-262-5969 or (907) 395-0916 **\n\nFor more information visit our website: \njbconstructionak.com\n

excavation completed and starting footer system.

Back filling the fox block footing system after insulation placed at lower footer.

DBL Clean out at tank.
Preferred install method

+14

Recommended by100%of homeowners

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Victory Drain Cleaning

5.0(

)

Basement Drainage Channels - Install

Serving Seward, AK and surrounding areas

In business since 2016

Free estimates

Emergency services offered

Drain cleaning, septic tank pumping, rotor rootor, camera inspection and locate, jetting and hot jetting, steam thawing

Recommended by100%of homeowners

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Seward, AK and surrounding areas

In business since 2005

Free estimates

Emergency services offered

We are committed to providing excellent customer service and professional work. We work to keep our overhead low to give the best prices to our customers. Check us out at equitybuildersak.com

Recommended by100%of homeowners

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Basement Waterproofing FAQs, answered by experts

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

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.

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.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.
For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

The Seward, AK 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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