Get matched with top basement waterproofing pros in Helena, MT

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: Can mold grow in or behind an encapsulated crawl space?

• <div><p>The purpose of crawl space encapsulation is to prevent mold by blocking moisture and reducing humidity. If the vapor barrier is properly installed, it significantly reduces the chance of mold developing within the crawl space. However, mold can sometimes grow behind the encapsulation material, but it will be sealed away from the main area. Additionally, moisture can still condense inside the encapsulated space, so if you notice excess humidity, installing a dehumidifier is recommended to prevent mold and mildew growth.</p></div>

Q: Does homeowners insurance cover basement flooding or water damage?

• <div><p>Standard homeowners insurance policies may cover basement water damage or flooding, but only if it is caused by a sudden and accidental event that is a covered peril, such as a burst pipe or a failing appliance. Damage caused by natural flooding from extreme weather, groundwater seepage, or heavy rain is typically excluded and requires a separate flood insurance policy. Some insurers also offer an optional water backup endorsement for issues like sewer backups. Review your policy or speak with your agent to understand your specific coverage.</p></div>

Q: What are the downsides to crawl space encapsulation?

• <div><p>The primary downside to crawl space encapsulation is the high cost, which can be several thousand dollars. Additionally, the process can make future repairs more complicated by limiting access to plumbing and electrical wiring within the crawl space. Encapsulation also requires sealing off any vents, which can be a disadvantage for home designs that benefit from the airflow they provide. It's recommended to consult with a crawl space contractor to determine if the benefits outweigh these potential drawbacks for your specific home.</p></div>

Q: Is it worth it to clean a crawl space?

• <div><p>Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning&mdash;typically between $0.50 and $4 per square foot&mdash;is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.</p></div>

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Verified Reviews for Basement Waterproofing pros in Helena, MT

*The Angi rating for Basement Waterproofing companies in Helena, MT 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 Helena, MT 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 December 31, 2025

Reviewed in December 2025
We hired Ambient Air Solutions for HVAC, tankless water heater, and gas work at our home. The total contract was $22,124, and we paid $11,662 upfront. The project was tied to an October 31 completion date but was not finished until December 12 (6 wks late), causing us to miss rebates and lose...
Ambient Air Solutions Inc
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Reviewed in May 2023
Eric Poole, Forefront Flooring, did an excellent job installing vinyl wood flooring in our entire basement. He was not only meticulous about how the flooring was laid and he worked quickly and accurately. We highly recommend Eric for his hard work from beginning to end. The estimate for the job...
Forefront Flooring
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Reviewed in January 2023
Hired this place to install new plumbing lines, install toilets, showers, etc & install a water softener during a remodel. They flooded the house TWICE due to botched work by MT city plumbing. The first time was because they didn’t hook up the softener right and that caused our basement to...
Montana City Plumbing & Heating
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Reviewed in August 2022
My landlord insists on using this business and they have wasted so much time and money just for simple issues that they make worse. The level of unprofessionalism and disrespect is astounding, especially as a small local business. Every time, there's an issue with them sending someone on time,...
CLARK'S PLUMBING & HEATING
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Reviewed in January 2022
406 Construction did remodeling in my basement. Suspended tile ceiling and doors and trim. They do an outstanding job. I highly recommend them. Very knowledgeable and professional. And...they stick to their bid quote. I am planning on having them do a bathroom remodel.
406 Remodeling and Construction, LLC
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Reviewed in August 2019
BLK Construction remodeled my basement bathroom. This included an alcove bathtub with ceramic wall tile that required a drain relocation, new lighting, exhaust fan, tile floor, vanity and sink, toilet, recessed medicine cabinet, and new paint. They did an excellent job. These are good, highly...
BLK Construction
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Reviewed in April 2019
We hired Kent Coulter (Montana Handyman) for some remodeling and home improvement projects to include a basement bathroom installation, an upstairs bathroom remodel/update and also he did some kitchen improvements for us. He is very reliable and hardworking. Once started, he works quickly and...
Montana Handyman
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Reviewed in March 2018
Just adding photos to our review of our bedroom suite with basement below —
Homeworks
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Reviewed in May 2017
I will say this their work as far as quality was very good. Punctuality, professionalism, and business model not so much. I was quoted at $50 an hour for 60 hours. He stated, "I will charge $1000-$1500 more than my competitor. I looked up some of the ratings on this website and seemed good....
Montana Drywall & Painting
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Reviewed in October 2013
Air-Serv was contacted on short notice to install a vent pipe from the basement through the roof of our 1 story house. JR accommodated our short schedule window, showed up on the date requested at the time requested and finished the work so we wouldn't be without hot water following the install...
Downtown Car Care Inc
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Find Basement waterproofing pros in Helena

Groundworks

4.3(

)

Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Helena, MT and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Warranties offered

"we had concrete pads added after home construction. One pad had a 2 inch settlement on one corner. Complicating this was a stone wall sitting atop the pad. Excellent restoration was done by Groundworks From Bozeman. After a thorough evaluation by Ben, Chelsea and Tyler were prompt, educational and successful. I Highly recommend this company for your concrete/foundation needs."

+16

Response time2 days

5 neighbors recently requested a quote

Recommended by72%of homeowners

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J&J Construction and Landscaping

5.0(

)

Basement Drainage Channels - Install

Serving Helena, MT and surrounding areas

In business since 1998

Emergency services offered

Credit card accepted

We have 8 employees and 3 sub-contracting.

Recommended by100%of homeowners

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Hampton Enterprise LLC

3.7(

)

Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Helena, MT and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"I only use James when I need some work done to my house. He responds fast, gets the work done quicker than just about anyone else I've ever used and seems very concerned with leaving his customers happy."

Recommended by60%of homeowners

Basement Drainage Channels - Install

Serving Helena, MT and surrounding areas

In business since 2021

Free estimates

Emergency services offered

Welcome to CR Excavation LLC! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! \n

+16

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Adams Excavation, LLC

New to Angi

Basement Drainage Channels - Install

Serving Helena, MT and surrounding areas

In business since 2009

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the customer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\nAdams excavation LLC is a family owned and operated business servicing Bozeman mt and surrounding areas. We offer excavation, grading, demolition and construction services. \nCall or text Kyle 949-422-5033 for a free estimate or email [email protected]\n\n-foundation and footing excavation \n-utility trenching \n-site preparation \n-pad grading\n-drainage grading \n-land clearing \n-access roads\n-backfill \n- concrete cutting and breaking \n- retaining walls\n- concrete placement \n

Response time5 hrs

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Rocky Mountain Excavation & Grading, LLC

New to Angi

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Helena, MT and surrounding areas

In business since 2018

Free estimates

Emergency services offered

Rocky Mountain Excavation & Grading, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business. \n

Response time12 hrs

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Integrity Plastering and Masonry

New to Angi

Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Helena, MT and surrounding areas

In business since 2024

Free estimates

Emergency services offered

Plastering and Masonry services done with integrity since 2000. I have been in the trades for most my life and know what works and what doesn't! I pride myself on the quality work I provide, while delivering great customer service.\nPlease see some of the services I offer below and call -or- click to schedule an estimate today!\n

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Basement Waterproofing questions, answered by experts

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 purpose of crawl space encapsulation is to prevent mold by blocking moisture and reducing humidity. If the vapor barrier is properly installed, it significantly reduces the chance of mold developing within the crawl space. However, mold can sometimes grow behind the encapsulation material, but it will be sealed away from the main area. Additionally, moisture can still condense inside the encapsulated space, so if you notice excess humidity, installing a dehumidifier is recommended to prevent mold and mildew growth.

Standard homeowners insurance policies may cover basement water damage or flooding, but only if it is caused by a sudden and accidental event that is a covered peril, such as a burst pipe or a failing appliance. Damage caused by natural flooding from extreme weather, groundwater seepage, or heavy rain is typically excluded and requires a separate flood insurance policy. Some insurers also offer an optional water backup endorsement for issues like sewer backups. Review your policy or speak with your agent to understand your specific coverage.

The primary downside to crawl space encapsulation is the high cost, which can be several thousand dollars. Additionally, the process can make future repairs more complicated by limiting access to plumbing and electrical wiring within the crawl space. Encapsulation also requires sealing off any vents, which can be a disadvantage for home designs that benefit from the airflow they provide. It's recommended to consult with a crawl space contractor to determine if the benefits outweigh these potential drawbacks for your specific home.

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

The Helena, MT 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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