Concrete repair, basement waterproofing, crawl space & foundation repair in Denver, CO

Thrasher Foundation Repair is proud to offer the very best home services in Denver and the surrounding areas, including the following:

Thrasher Foundation Repair’s Local Service Offering:

Winterize your concrete with concrete sealant

Protect your concrete from the freeze/thaw cycle with SealantPro, a permanent sealant that penetrates deeply into the pores and bonds with the concrete to create a strong, permanent barrier. With SealantPro, your concrete is protected from pitting, flaking and cracking.


We’ve been bringing the best to the West since 1975 and are thrilled to offer our services to the great state of Colorado!

Thrasher Foundation Repair - Now Serving the Greater Denver Area!

When folks think of the Western United States, a few images come immediately to mind. One may imagine rolling plains, dense forests, canyons cut deep into the soil, or towering mountains hidden by the morning fog. When it comes to Western cities, Denver may be the quintessential member of the whole group.

Nestled at the foot of the mighty Rocky Mountains’ front range, our city has been a premier destination for travelers, tourists, businesses, and fans of the great outdoors for hundreds of years. With a bustling metropolitan center and quick access to some of America’s greatest scenery, wildlife, and recreational activities, it’s no wonder Denver was one of just 14 cities in the U.S. to add 100,000 residents to its urban population between 2010 and 2020. And like the good folks who sought new opportunities in the gateway to the Rockies over the last several years, so too did Thrasher Foundation Repair. Our newest location represents our constant drive to improve our business and succeed in challenging ventures, an ethos exemplified by the people of Denver dating back to the 1850s.

The weather can be extreme in a city at altitude. Winter brings blankets of snow without fail, and the spring thaw releases millions of gallons of water into many of the area’s rivers and creeks, like the South Platte or Cherry Creek. Heavy rainfalls have caused massive flooding, as recently as the 2013 regional flood event that caused nearly $4 billion in damages. Between heavy rains, snowmelt, freeze-and-thaw cycles, and occasional flooding, basements and foundations in the Mile High City are always under pressure.

Thrasher Foundation Repair specializes in basement and foundation solutions, including basement waterproofing, sump pump and drainage installations, foundation repairs, and more. We also perform crawl space encapsulation and concrete leveling and repair services throughout the Denver area. We’ll repair bowing foundation walls, fix and prevent wet basements, repair concrete driveways, and more, using the best products and practices. Our company has been in business for more than forty-five years, and we’re excited to bring our expertise to your door!

We offer no-cost, no-obligation estimates for clients in Denver and the surrounding area. Call now to schedule yours today!

Testimonials From Denver
I'm so happy we called Thrasher to take care of these issues. They were able to get the job installed...
Testimonial by Juila H. from Denver, CO
The process was so easy from beginning to end considering this was for a real state deal. I'm happy it was...
Testimonial by Zach S. from Denver, CO
Extremely happy with all of the work and the crews professionalism and clean up!
Testimonial by Steve B. from Lakewood, CO
Contact Us For
An Estimate!
Click House icon to view requests in Denver

Professional Basement Waterproofing Services in Denver, CO

Wet basements are a sign of deteriorating structural health for any building, and never something you want to see in your home. As we mentioned earlier, Denver is a city built around a series of drainages at the foothill of America’s premier mountain range. Heavy winter snowfall, voluminous spring snowmelt, and torrential summer rains can lead to flooding and excess moisture buildup in the soil around your home. This occurrence causes external pressures and heightens the potential for damage to your basement over time.

Water infiltration results from a variety of factors, while repairs and preventative measures differ depending on the situation. That’s why you need the expert basement waterproofing contractors at Thrasher Foundation Repair. Our professional teams are trained to identify the root causes of wet basements, providing customized fixes for your home’s specific problems. There are no boilerplate solutions when you work with Thrasher Foundation Repair. We will design and implement a basement waterproofing system that works specifically for your home, delivering lasting results and peace of mind. Wherever you are in the greater Denver area, we’re the basement waterproofing team to call!

We offer no-cost, no-obligation basement waterproofing inspection and service estimates across Denver. Contact us today to schedule yours!

We offer the following basement waterproofing products and solutions:

  • Interior drainage systems
  • Dehumidifiers
  • Sump pumps
  • And more!

Denver, CO’s Local Foundation Repair Experts

Helical pile foundation supports are installed at a Denver construction site
If your foundation is in distress, don't worry! We'll take it from here.

The foundation is the backbone of your home, and Thrasher Foundation Repair is your local foundation repair expert. We treat buildings as a system of interlocking components, all centered around stability at the foundation. Like any structure, strength comes from the base, and your home is no different. If you’ve noticed cracks in basement foundation walls or floors, sticking windows or doors, a tilting chimney, or any common foundation damage symptoms, then it’s time to call in the experts.

Pressures to foundations arise from several issues, like hydrostatic pressure, shifting soil compositions, soil heave, and settlement. Hydrostatic pressure results from excess moisture lingering in the fill-in soil around your foundation, increasing its density and pushing at the walls with added force. Heave happens when expansive soils expand, forcefully pushing themselves upwards against your home’s slab. Settlement is similar in function to heave, instead causing a foundation to sink as soils shift and contract beneath your home.

With Thrasher Foundation Repair, you no longer have to worry about your home’s foundation problems. We offer lasting, customized foundation repair services that will meet your every need. If you’ve got street creep issues, foundation cracks, or a tilting chimney, you know who to call.

We offer free foundation estimates for clients in the Denver area. Call now to get yours!

Foundation Problems We Fix:

  • Foundation settlement & sinking
  • Sticking windows & doors
  • Tilting chimneys
  • Tilting & bowing walls
  • Cracked foundation walls & floors
  • Collapsing retaining walls
  • Sagging crawl space
  • Uneven floors
  • Sagging garage door lintels

Our Foundation Repair Products:

  • Crawl space support posts
  • Push piers & helical piers
  • Wall anchors
  • Street creep repairs
  • Foundation wall brace & beams
  • Carbon fiber wall straps
  • Foundation settlement repair
  • Foundation crack repair

Denver’s Concrete Leveling & Repair Contractor

Technicians install a compression guard in a Denver driveway
We're experts in concrete repair of all kinds. We repair
pool decks, driveways, sidewalks, and more!

While concrete is undoubtedly a strong and resilient building material, it’s not indestructible. We’ve all seen sunken sidewalks, cracked driveways, chipped building walls, or other clear signs of concrete decay throughout our lives. Causes of this damage vary by region, primarily due to environmental factors. In Colorado, concrete is constantly stressed by our long, harsh winters, and subsequent periods of freezing, thawing, and the presence of excess moisture. As concrete freezes it contracts, expanding in warmer conditions and creating tiny pores within the structure. In periods of high moisture - like the spring thaw - these pores will absorb and retain water. This trapped water, if frozen again, will expand to a volume greater than its liquid form. This expansion leads to damage like cracking, pitting, flaking, and even internal corrosion of rebar and other internal metal components.

With Thrasher Foundation Repair, you have nothing to fear if your concrete has deteriorated. Whether it’s your driveway, a pool deck, or the sidewalk, our concrete repair and leveling experts can identify the issue and prescribe a tailored solution to alleviate your concrete problems once and for all. We specialize in both repairing damaged concrete and leveling sunken or uneven slabs, and we’ve got almost five decades of experience behind us to ensure your satisfaction.

We offer no-cost concrete repair estimates in Denver and the surrounding area. We’re standing by to give you a hand!

Our concrete repair solutions:

  • PolyLevel® concrete leveling
  • NexusPro™ cracked concrete repair
  • SealantPro™ concrete sealing
  • Commercial concrete repairs
  • Driveway repairs
  • Pool deck leveling
  • Sidewalk repairs
  • Step repairs

Reliable Concrete Sealing for Flaking, Cracked Concrete

Concrete repair company installing SealantPro concrete sealing in a Denver driveway
Prevent flaking, cracked concrete in Denver with
SealantPro™ concrete sealing!

Moisture is a slab's worst enemy. As temperatures fluctuate, water within untreated concrete expands and shrinks during freeze-thaw cycles. This exerts pressure on the slab and weakens the structure, leading to sinking, cracked concrete and causing discoloration, peeling, and flaking. When major features of your home or building are impacted, including the driveway, walkway, patio, or pool deck, this can reduce the curb appeal and value of the property. And even worse, these sinking, cracked concrete slabs are also a safety concern, as these uneven surfaces are falling hazards and can cause injuries.

Since Denver, CO is prone to flooding and moisture issues, home and property owners need a sure-fire concrete repair solution for peeling, flaking, and cracked concrete. That's where Thrasher Foundation Repair can help with SealantPro™ concrete sealing. This concrete sealing system extends the lifespan of slabs by 3 to 5 times overall in just one quick application. SealantPro permanently bonds to slabs, providing lifelong protection against water damage, peeling, flaking, concrete cracks, discoloration from UV rays, and more! Plus, SealantPro also makes concrete easier to clean, preventing staining and ensuring your slabs look great for years to come.

Benefits of our concrete sealing system:

  • Extends slabs' lifespan by 3-5 times overall
  • Permenately bonds with slabs in one quick application
  • Reduces ice bonding, making ice removal easier
  • Protects against water damage, UV rays, pitting, concrete cracks, stains & more
  • Can be applied to new & existing slabs
  • Concrete sealing system cures in 6 hours, so you can use slabs the same day

Get a free estimate on our concrete sealing and concrete repair systems to learn more. We provide concrete repair services in areas throughout Colorado, including Denver and nearby!

Professional Crawl Space Repair Contractors in Denver, CO

A SmartJack crawl space support system is installed in a local Denver crawl space
Whether you need moisture remediation, waterproofing, or
structural support, Thrasher has your crawl space covered.

In many households, the crawlspace isn’t often thought of. It’s a space beneath your floor where few will ever feel the need to enter - why worry? While this line of thinking may be common all across the country, Thrasher Foundation Repair has seen and serviced enough crawl spaces to know that proper maintenance and care of this part of your home is vital.

Dirty and neglected crawl spaces can be a serious detriment to your building. Over time, dirt, dust, even pests and structural rot can take hold of the area, eventually causing problems with air quality, mold, musky smells, and declining structural integrity. While these issues aren’t as obvious as a cracked wall or sunken driveway, these problems don’t go away on their own and can be both repaired and prevented with the right crawl space repair contractor.

Our suite of crawl space repair products is designed to meet many challenges head-on, whether it be moisture infiltration, sagging support beams, dirt accumulation, or even permanent crawl space encapsulation. We offer the best products installed by highly-trained crawl space experts, guaranteeing your satisfaction and ensuring the long-term health of your home.

For more information and a no-cost, no-obligation crawl space repair estimate in Denver, call the pros at Thrasher Foundation Repair today!

Our crawl space repair system includes:

  • Crawl space vapor barrier
  • Crawl space insulation
  • Crawl space support posts
  • Crawl space dehumidifiers
  • Crawl space sump pumps
  • And more!

Call the experts at Thrasher Foundation Repair for your free, on-site foundation repair, basement waterproofing, or concrete repair estimate!

There's no better time to take care of your lingering household issues than the present. Whether you've got a cracked driveway, a tilting chimney, or a smelly crawlspace, Thrasher Foundation Repair has the tools and experience to properly assess the situation and prescribe the perfect solution.

Our experts are standing by! Give Thrasher Foundation Repair a call today!

Recent job requests in Denver, CO

Neighborhood: S Zephyr Street, Denver, 80227

Foundation wall crack in laundry room

Neighborhood: Decatur St, Denver, 80211

The house was built in 1920. I removed the basement drywall and found some foundation wall cracks and scaling.

Neighborhood: Elbert Way, Denver, 80221

I have a basement that is settling and a house that's pulling from the south east

Neighborhood: Denver, 80218

Two units that are taking on water below grade.

Neighborhood: N Raleigh St, Denver, 80212

Needing gutted screen

Neighborhood: Denver, 80229

We have had a mildew-y smell in our basement since early July. We've had a mold inspection & they recommended cleaning the crawl space & installing a new vapor barrier. We also have a few leaks in our gutters so we're looking to address these issues soon (definitely before spring). Thanks!

Neighborhood: W Rutgers Pl, Denver, 80236

I need my driveway lift. It has sunk and now drains to the house.

Neighborhood: Lowell Blvd, Denver, 80211

Install sump pump in basement of my home.

Neighborhood: Main, Denver, 80239

Water in the basement

Neighborhood: Umatilla St., Denver, 80211

The floors over our crawlspace are sagging towards the outside of the house. We're interested in an economical way to shore them up.

Neighborhood: Croke Dr, Denver, 80260

There is a gap between my floor and wall in one part of the house

Neighborhood: Denver, 80221

Front concrete step/walkway has cracked and is sinking away from another poured concrete patio leaving noticeable separation/gap between surfaces where snow/ice/water will continue to cause issues.

Neighborhood: Beeler Street, Denver, 80238

Driveway and garage have cracks with sinking problems. Also have a small cement patio off this garage with missing support but has not yet cracked.

Neighborhood: S Clay, Denver, 80211

Need helical piers or cheap alternative

Neighborhood: Melody Drive, Denver, 80234

Have noticed cracks in door frames in interior of house have gotten bigger over the past 3 years. Some foundation concrete work potentially needed. Clay heavy soil.

Neighborhood: Denver, 80204

Cracks in foundation causing cracks and bowing in walls

Neighborhood: N High St, Denver, 80205

Dusty and damp smell in the house. House is built over a dirt crawl space and dirt cellar. Can you help solve the problem with this smell ?

Neighborhood: S Fenton Dr, Denver, 80227

I have a patio that is sinking and needs to be leveled. There are also two outer slabs that need to be moved horizontally back slightly to mate with adjacent slabs.

Neighborhood: S Vincennes Ct, Denver, 80237

Observing cracks within the house & outside the house in the masonry.

Neighborhood: Denver, 80237

Job Stories From Denver, CO

Service Area Zip Codes: