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TRUSTED BY BOULDER, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon17
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Boulder

Avatar for Thrasher Foundation Repair - Denver

Thrasher Foundation Repair - Denver

New on AngiNew on Angi
Approved Pro

Thrasher Foundation Repair - Denver

New on AngiNew on Angi
Approved Pro
50 years of experience
Free onsite estimate

With 50 years of experience in the basement and foundation repair industry, Thrasher Foundation Repair offers trusted services to homeowners around Denver, CO. Recognized for our exceptional commitment to leadership, character, and organizational ethics, we are proud recipients of the 2024 International BBB Torch Award for Ethics. From cracked concrete repair to basement waterproofing and crawl space encapsulation, we provide state-of-the-art solutions to keep your foundation safe, dry, and healthy. Here at Thrasher, we guarantee precise repair and genuine care. We proudly offer our services in Fort Collins, Colorado Springs, Aurora, and surrounding areas. Contact us today at 303-586-5570 for a free inspection.

With 50 years of experience in the basement and foundation repair industry, Thrasher Foundation Repair offers trusted services to homeowners around Denver, CO. Recognized for our exceptional commitment to leadership, character, and organizational ethics, we are proud recipients of the 2024 International BBB Torch Award for Ethics. From cracked concrete repair to basement waterproofing and crawl space encapsulation, we provide state-of-the-art solutions to keep your foundation safe, dry, and healthy. Here at Thrasher, we guarantee precise repair and genuine care. We proudly offer our services in Fort Collins, Colorado Springs, Aurora, and surrounding areas. Contact us today at 303-586-5570 for a free inspection.


Avatar for Groundworks

Groundworks

4.32(
190
)
Approved Pro

Groundworks

4.32(
190
)
Approved Pro
Customers say: Super punctual
53 local quotes requested
26 years of experience

Established in 1999, Groundworks Colorado stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Colorado, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!

"No they were not what I expected they were supposed to level out my driveway and sidewalk and they didn't do a very good job and they were supposed to come out and fix what they f. ed up and I have not seen them yet I spent 4,000.00$ and I will have to replace everything."

Jeffery P on May 2025

Established in 1999, Groundworks Colorado stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Colorado, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!

"No they were not what I expected they were supposed to level out my driveway and sidewalk and they didn't do a very good job and they were supposed to come out and fix what they f. ed up and I have not seen them yet I spent 4,000.00$ and I will have to replace everything."

Jeffery P on May 2025


Avatar for Titan Foundation Repair, LLC

Titan Foundation Repair, LLC

5.00(
2
)
Approved Pro

Titan Foundation Repair, LLC

5.00(
2
)
Approved Pro
14 local quotes requested
8 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of foundation repair services that are customizable to each individual project. We specialize in basement waterproofing and structural foundation repairs. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Professional and quick to respond!"

Emma B on February 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of foundation repair services that are customizable to each individual project. We specialize in basement waterproofing and structural foundation repairs. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Professional and quick to respond!"

Emma B on February 2025


Avatar for Titan Foundation Repair, LLC

Titan Foundation Repair, LLC

4.83(
43
)
Approved Pro

Titan Foundation Repair, LLC

4.83(
43
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of foundation repair services that are customizable to each individual project. We specialize in basement and foundation repairs. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Doydtssits"

Dave B on March 2023

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of foundation repair services that are customizable to each individual project. We specialize in basement and foundation repairs. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Doydtssits"

Dave B on March 2023


Collins Ventures

5.00(
1
)

Collins Ventures

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Here at Collins Ventures we specialize in all aspects of home renovation, including interior and exterior projects. We use only top of the line materials for every project to ensure a quality finished project that will bring equity to your home! Our team of skilled professionals have been serving the front range of Colorado for more than ten years

"He did a very good job and got it done fast! I would definitely recommend William and all the work he does is on point! Thank you ?"

Karissa P on February 2024

Here at Collins Ventures we specialize in all aspects of home renovation, including interior and exterior projects. We use only top of the line materials for every project to ensure a quality finished project that will bring equity to your home! Our team of skilled professionals have been serving the front range of Colorado for more than ten years

"He did a very good job and got it done fast! I would definitely recommend William and all the work he does is on point! Thank you ?"

Karissa P on February 2024


IM Colorado Caulking and Waterproofing L.L.C

No reviews yet

IM Colorado Caulking and Waterproofing L.L.C

No reviews yet

We are doing services such as caulking and sealants, waterproofing, and decoding. We have been in this industry for over 30 years. We focus on doing a better job while keeping quality and focusing on keeping the customer happy.

We are doing services such as caulking and sealants, waterproofing, and decoding. We have been in this industry for over 30 years. We focus on doing a better job while keeping quality and focusing on keeping the customer happy.


Avatar for BTB

BTB

No reviews yet

BTB

No reviews yet
3 years of experience

At BTB, our mission is to be a trusted partner for businesses seeking innovative and reliable coating solutions. Through continuous research, development, and a customer-centric approach, we strive to exceed expectations and contribute to the success and sustainability of our clients across diverse industries.

At BTB, our mission is to be a trusted partner for businesses seeking innovative and reliable coating solutions. Through continuous research, development, and a customer-centric approach, we strive to exceed expectations and contribute to the success and sustainability of our clients across diverse industries.


Avatar for HappyRemodeling

HappyRemodeling

No reviews yet

HappyRemodeling

No reviews yet

Remodeling residential homes and multi-family homes. We are a family owned and ran business. We offer demolition, framing, drywall repair and replacement. Laminate flooring, hard wood, porcelain tile and glass tile installation. Bathroom and kitchen remodeling High satisfaction from customers

Remodeling residential homes and multi-family homes. We are a family owned and ran business. We offer demolition, framing, drywall repair and replacement. Laminate flooring, hard wood, porcelain tile and glass tile installation. Bathroom and kitchen remodeling High satisfaction from customers


Avatar for Skyline Painting CO, llc

Skyline Painting CO, llc

No reviews yet

Skyline Painting CO, llc

No reviews yet
3 years of experience

At Skyline Painting Co., we are more than just a painting service; we are your partners in transformation. Specializing in both interior and exterior solutions, our comprehensive suite of services includes painting, drywall installation and repair, texturing, and much more. What sets Skyline apart? Our unwavering commitment to excellence and precision in every project, big or small. We understand that every stroke matters, every detail counts. That's why we approach each project with meticulous attention to ensure a flawless finish that speaks volumes. Behind every project is a dedicated team with years of hands-on experience. While we may have the expertise of a large business, we retain the personalized touch of an owner-operated venture. With a track record spanning several successful years in the industry, our reputation is built on trust, quality, and an unmatched dedication to our clients. Whether you're envisioning a fresh look for your home, revitalizing a commercial space, or embarking on a multifaceted renovation, Skyline Painting Co. is here to bring your vision to life with unmatched quality and craftsmanship.

At Skyline Painting Co., we are more than just a painting service; we are your partners in transformation. Specializing in both interior and exterior solutions, our comprehensive suite of services includes painting, drywall installation and repair, texturing, and much more. What sets Skyline apart? Our unwavering commitment to excellence and precision in every project, big or small. We understand that every stroke matters, every detail counts. That's why we approach each project with meticulous attention to ensure a flawless finish that speaks volumes. Behind every project is a dedicated team with years of hands-on experience. While we may have the expertise of a large business, we retain the personalized touch of an owner-operated venture. With a track record spanning several successful years in the industry, our reputation is built on trust, quality, and an unmatched dedication to our clients. Whether you're envisioning a fresh look for your home, revitalizing a commercial space, or embarking on a multifaceted renovation, Skyline Painting Co. is here to bring your vision to life with unmatched quality and craftsmanship.


Avatar for BDPeak Engineering, LLC

BDPeak Engineering, LLC

5.00(
7
)

BDPeak Engineering, LLC

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

BDPeak Engineering provides structural engineering design & drafting services for commercial, residential, industrial and institutional projects. Forensic Investigations & Engineering services are offered for residential & commercial structures. BDPeak was founded on two principles: honesty and integrity. We are professionally licensed throughout the United States, primarily focusing on the Rocky Mountain region. Our staff has been practicing structural engineering and serving the region for 15 years. BDPeak is professionally licensed in Wyoming, Colorado, Montana, Nebraska, North Dakota & Texas.

"Working with Bryan and BDPeak Engineering was an overall great experience. Being first time home builders, Bryan helped make the process as smooth as possible and helped put any concerns we may have had going into it at ease. His attention to detail and communication was second to none. He was very responsive throughout the whole process whenever we had any questions and always met the deadlines he had set. I would most definitely recommend using the services BDPeak offers for any prospective building projects."

Chris P on December 2022

BDPeak Engineering provides structural engineering design & drafting services for commercial, residential, industrial and institutional projects. Forensic Investigations & Engineering services are offered for residential & commercial structures. BDPeak was founded on two principles: honesty and integrity. We are professionally licensed throughout the United States, primarily focusing on the Rocky Mountain region. Our staff has been practicing structural engineering and serving the region for 15 years. BDPeak is professionally licensed in Wyoming, Colorado, Montana, Nebraska, North Dakota & Texas.

"Working with Bryan and BDPeak Engineering was an overall great experience. Being first time home builders, Bryan helped make the process as smooth as possible and helped put any concerns we may have had going into it at ease. His attention to detail and communication was second to none. He was very responsive throughout the whole process whenever we had any questions and always met the deadlines he had set. I would most definitely recommend using the services BDPeak offers for any prospective building projects."

Chris P on December 2022

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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.

Yes, cleaning a crawl space is worth it. You might think you can ignore the area since it’s out of sight, but doing so can lead to pest infestations, mold, and other problems. Crawl space cleaning costs between $0.50 and $4 per square foot, but the cost to deal with pests or mold would be much higher.

In nearly all cases, you are required to install a vapor barrier in your crawl space. However, local regulations will change based on the local climate and the crawl space's susceptibility to moisture. Even if a vapor barrier is not legally required, it is often a good idea to keep your crawl space dry.

Proper drainage prevents water damage, mold growth, and foundation settling, protecting your home’s structural integrity.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

The Boulder, CO homeowners’ guide to basement waterproofing services

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