Get matched with top basement waterproofing pros in Boulder, MT

Q: How do you know if you have a leak under your foundation?

• <div><p>A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it&rsquo;s a plumbing line embedded in your slab, you&rsquo;ll also likely notice above-average water bills.</p></div>

Q: Is a pier and beam the same as a crawl space?

• <div><p>Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as &ldquo;crawl space foundations,&rdquo; but the crawl space itself is separate from the foundation. </p></div>

Q: Should you cover the dirt in a crawl space?

• <div><p>Covering the dirt floor in your crawl space with a vapor barrier helps insulate the space and improve the air quality in your home. It protects your crawl space from pest infestations, excess moisture, and mold growth. It also makes the crawl space less dusty, which means there&rsquo;s a lower chance of dust mites breeding and causing allergic reactions in your home.</p></div>

Q: Does water damage always cause mold?

• <div><p>Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast&mdash;ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.</p></div>

Q: What do you put around the bottom of your house?

• <div><p>If you decide to fill the space around your home&rsquo;s foundation with landscaping materials, it&rsquo;s important to consider the aesthetic as well as technical factors like drainage and protection from pests and the elements. Materials such as gravel, rubber mulch, concrete, and brick masonry are all good options.</p></div>

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Verified Reviews for Basement Waterproofing pros in Boulder, MT

*The Angi rating for Basement Waterproofing companies in Boulder, 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 Boulder, 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 May 31, 2026

Reviewed in May 2026
Jennifer with DeBella&#39;s was super awesome and helpful!! We love our siding! When it dropped to well below 0 for weeks, no problems! And lower heating bills than years before! In the summer, the house stayed cooler aswell with the new siding. Couldn&#39;t be happier!!
DaBella - Bozeman (Bath/Siding)
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Reviewed in November 2024
Everything went very smooth with the first consult all the way through to the texts leading up to the install. Great group of people to work with!
Renewal by Andersen of Montana
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Reviewed in August 2024
Great people to work with, family business, trustworthy, did an excellent job ripping up and replacing our driveway. They completed the job in one day and without any issues. Attention to detail. Highly recommend them and you won't have to worry about the quality of the job they'll do.
Ted's Asphalt Repair
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Reviewed in November 2022
Nathan is an excellent worker who works speedily and professionally. He replaced our dining room and bathroom floor and did such an excellent job that we want to hire him back to do our kitchen floor!! I would recommend Nathan to anyone!!!
Freedom Flooring
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Reviewed in October 2021
Royal Construction managed a 6000 sgft Unique Log Home construction and finishing, inside & out, over multiple phases. Shane & his crew were detail oriented, overly efficient in design and material usage, punctual and 100% reliable to his word and bids. We would not have been able to...
Royal Construction & Remodeling
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Reviewed in December 2020
We went into the Helena location in July and picked out a shed to be built. We were told 8-10 weeks from time of order, so we put $1800.00 down that day. We were told we would receive updates along the build, and to expect our shed in late August, early Sept. By mid Sept, we still had no shed,...
TUFF SHED INC - Helena
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Reviewed in June 2020
John was extremely friendly, suggesting others to do portions of the work where he didn't consider himself an expert. They were, and the job was done right. For the part he did, the work was fast, clean, and done with a smile. He's my new go-to plumber in the Boulder/Helena area.
Sorensen Plumbing
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Reviewed in April 2020
He is very meticulous, takes pride in his, work, and makes sure whatever he does is done to code. I was pleased with the work he did for me!
DLH Electric
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Reviewed in October 2016
The folks at Finstad's did a wonderful job with our flooring. It started with Chris coming out to give us ideas and options to Todd doing an exceptional job of installing the flooring from carpet to laminate. Chris and Todd made this an easy and enjoyable process and there is never a doubt...
FINSTAD'S CARPET ONE
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Reviewed in August 2015
<p>We purchased a home and had the carpets cleaned & tested for pet urine with the ultra violet light. Special chemical for urine odor was used in 2 bedrooms. One bedroom it was recommended to remove carpet. I felt this company was very trustworthy, friendly & professional. They were prompt at...
Heaven's Best Carpet Cleaning
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Find Basement waterproofing pros in Boulder

Groundworks

4.3(

)

Serving Boulder, 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

34 neighbors recently requested a quote

Recommended by72%of homeowners

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Hampton Enterprise LLC

3.7(

)

Serving Boulder, 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

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Rocky Mountain Excavation & Grading, LLC

New to Angi

Serving Boulder, 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

Serving Boulder, 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

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation.

Covering the dirt floor in your crawl space with a vapor barrier helps insulate the space and improve the air quality in your home. It protects your crawl space from pest infestations, excess moisture, and mold growth. It also makes the crawl space less dusty, which means there’s a lower chance of dust mites breeding and causing allergic reactions in your home.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

If you decide to fill the space around your home’s foundation with landscaping materials, it’s important to consider the aesthetic as well as technical factors like drainage and protection from pests and the elements. Materials such as gravel, rubber mulch, concrete, and brick masonry are all good options.

The Boulder, MT 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

Lawrence Bonk
•
May 2, 2026May 2, 2026
How Much Does Basement Waterproofing Cost? [2026 Data]
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How Much Does It Cost to Finish a Basement? [2026 Data]
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Apr 6, 2026Apr 6, 2026
10 Tips for Building a Flood-Proof House That's Up to Code
Wondering how you can make a flood-proof house? We’ve got 10 essential tips to prepare and protect you in case of flooding following severe weather.
Audrey Bruno
•
May 22, 2026May 22, 2026
How to Safely Clean a Flooded Basement and Avoid Electrical Hazards
Taking protective measures and reacting calmly and quickly are the best ways to reduce water damage and avoid electrical hazards in flooded basements.
Catherine Hiles
•
Apr 10, 2026Apr 10, 2026
How to Fix a Leaky Basement
A basement offers additional living or storage space, but if it leaks, it can become a significant headache. Learn how to fix a leaky basement and prevent water damage.
Ebonee Williams
•
May 5, 2026May 5, 2026
Should You Waterproof the Inside or Outside of a Basement or Crawl Space?
Moisture issues in your basement can lead to major problems with your home and your health. This guide will go over both interior and exterior waterproofing methods to help you determine the best solution for your home.