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:

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 conjure up visions of 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 just 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.

In a city at altitude, the weather can be a bit extreme. 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 in the past, 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
The process was so easy from beginning to end considering this was for a real state deal. I'm happy it was able to get done quickly and the buyers will be safe...
Testimonial by Zach S. from Denver, CO
I am very happy with the outcome!
Testimonial by Melissa S. from Lakewood, CO
Reviews From Denver
Contact Us For
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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 Colorado. Contact us today to schedule yours!

We offer the following basement waterproofing products and solutions:

  • Interior drainage systems
  • Dehumidifiers
  • Window wells
  • 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 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

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, 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!

Before and After Pictures from Denver
Structural Issues Solved in North Glenn, CO

Structural Issues Solved in North Glenn, CO

Before After
Structural Issues Solved in North Glenn, CO Structural Issues Solved in North Glenn, CO

This homeowner was selling his home, when it got flagged for inspection due to structural issues. He was unsure what the problem was, because all he had noticed were a few cracks in the walls. Knowing that he needed a professional opinion before he would be able to sell his house, he decided to give us a call.

We sent System Design Specialist Anthony Salcedo to inspect the homeowner's foundation and determine what was causing the wall cracks and the home to be flagged for structural issues, as well as to suggest solutions to make the home available for sale. Anthony found that the home had an internal support beam that was in great shape, however the supports underneath this were sinking into the earth, thus causing the structural issues. He knew that SmartJacks were needed to support the home's support beam, so he called an installation team out to install 5 SmartJacks in order to permanently support and stabilize the floor.

The homeowner was very happy with the work that was done and with how quickly the process moved. In fact, he already has a buyer for his home! Check out the newly supported support beam for this homeowner's home!

Porch Repair in Denver, CO

Porch Repair in Denver, CO

Before After
Porch Repair in Denver, CO Porch Repair in Denver, CO

This homeowner has a lot of elderly visitors and did not want her walkway and front patio to be a tripping hazard. She called Thrasher and System Design Specialist, Jeff Schlimm, came out to help her. Jeff found the patio was sinking due to washout over time. We were able to help by using PolyLevel and NexusPro to lift, level and stabilize the slabs and sealing off the joints. These products are both waterproof, preventing any washout in the future. Check out the before and after of this one! 

Crawlspace Foundation Repair in Denver, CO

Crawlspace Foundation Repair in Denver, CO

Before After
Crawlspace Foundation Repair in Denver, CO Crawlspace Foundation Repair in Denver, CO

This homeowner was experiencing structural foundation issues at this home he was looking to sell. He knew he needed to get this fixed before putting it on the market, and needed someone reliable but fast. He called Thrasher and System Design Specialist, Anthony Salcedo, came out to help. Anthony found three of the foundation walls were failing and were in poor condition. Anthony worked with the homeowners engineer with findings of poor soil pushing in and causing stress throughout the crawlspace. With these findings, Anthony went back to the homeowner with a solution. We were able to install Everbrace to restore two of the walls and helical piers on the wall that lacked proper footing. The homeowner and real estate agent were happy with our process and how easy it was to get it all done. There is no doubt the new homeowners of this property are happy with the transferrable warranty, and feel safe in their new home. 

Recent job requests in Denver, CO

Neighborhood: Denver, 80229


We have a room that was added to the house before we bought it. That room's foundation, we think, is sinking. Additional information: Needs help with: Foundation Settlement

Neighborhood: Denver, 80228


A section of the basement walls have a crack and slight inward bowing from a flat landscaping job. The house passed technical inspection 11 years ago, but we'd like to fix the issue before proceeding with additional renovations. Additional information: Needs help with: Foundation Settlement

Neighborhood: Denver, 80221


I need an estimate on possible mud jacking my front concrete Additional information: Needs help with: Foundation Settlement

Neighborhood: Denver, 80234


I'd like to have my crawlspace encapsulated Additional information: Needs help with: Crawlspace

Neighborhood: Denver, 80219


I have about 5 foundation cracks and need to repair. Additional information: Needs help with: Foundation Settlement

Neighborhood: Denver, 80215


Hello, I have an observation letter from a structural engineering firm for foundation work that would entail helical or push piers. I wanted to get a bid on how much the work would cost. I can share the information, but wanted to also know if you need to do a site visit to quote the work. Thanks. Additional information: Needs help with: Foundation Settlement

Neighborhood: Denver, 80231


Block basement walls have cracking and evidence of movement Additional information: Needs help with: Wall Support

Neighborhood: Denver, 80222


Mortar between concrete blocks weakened. I can see a little daylight through those above ground. Hoping to fill and seal the foundation walls and floor to prevent soil erosion and foundation sinking. Additional information: Needs help with: Crawlspace

Neighborhood: Denver, 80221


We like to get things checked out to see if there are foundation issues. We noticed some ceiling cracks and our sidewalks are also cracking. We have some brick veneer that also has cracks but unsure if that's just shoddy work or something else. Additional information: Needs help with: Foundation Settlement

Neighborhood: E Bates Drive, Denver, 80231


I'd saw that you offer free inspections of potential foundation issues, so I'd like to schedule that with you. Our home has an uneven floor in the main level and doors are sticking. Thanks! Additional information: I need help with: Foundation Settlement

Neighborhood: Denver, 80231


Front stoop and step is settling away from the house. Would like it pumped, lifted, and leveled. Additional information: Needs help with: Concrete Repair

Neighborhood: Denver, 80223


Sinking concrete sloping toward foundation Additional information: Needs help with: Concrete Repair

Neighborhood: Denver, 80238


We have an area in our finished basement where water has gotten in. You can see water damage on the floor boards and there was a mushroom growing at one point. Additional information: Needs help with: Waterproofing

Neighborhood: Denver, 80229


Service: Foundation cracks or sinking

Neighborhood: Denver, 80220


Last year, we had a kitchen renovation done. Added 400sqft to the existing house. We have hardwood floors throughout the entire house - 1400sqft. About 9 months after the renovation, the hardwood floors squeak, and feel squishy in every single room of the house. including part of the newly renovated kitchen. We did not have issues with our hardwood floors until the renovation was done. we also would like to have our crawl space encapsulated. There is also some concrete issues with front and back concrete areas - cracks... Additional information: Needs help with: Crawlspace

Neighborhood: Denver, 80223


Colorado Home Show - needs an estimate for mudjacking Additional information: Needs help with: Concrete Repair

Neighborhood: Denver, 80226


Colorado Home Show - Foundation Settlement Additional information: Needs help with: Foundation Settlement

Neighborhood: Denver, 80215


Looks like our basement walls are bowing Additional information: Needs help with: Wall Support

Neighborhood: Denver, 80229


We have water coming in the basement and need a French drain installed Additional information: Needs help with: Waterproofing

Neighborhood: Denver, 80222


Have some issues with some interior walls I believe is related to too much settling of a wall in my house. Additional information: Needs help with: Foundation Settlement
Job Stories From Denver, CO
Porch Repair in Denver, CO

This homeowner has a lot of elderly visitors and did not want her walkway and front patio to be a tripping hazards. After seeing commercials and reading reviews online, she knew she could trust us, so she called Thrasher. System Design Specialist, Jeff Schlimm, came out to meet with her. Jeff did his inspection and found her patio was sinking due to washout. This caused the slabs to become uneven over time. Jeff took these findings and came back to the homeowner with a solution. Jeff proposed we use PolyLevel to lift, level, and stabilize the slab, and NexusPro to seal the joints. Both of these products are waterproof, preventing any more washout in the future. The homeowner was very happy with the work and we know she has the peace of mind of her visitors. 

Porch Repair in Denver, CO

This homeowner has a lot of elderly visitors, and did not want her walkway and patio to be a tripping hazard. She knew of Thrasher and saw our commercials, so she gave us a call. System Design Specialist, Jeff Schlimm, came out to meet with her. Jeff did his inspection and found her walkway had settled due to washout. This caused her concrete slabs to become uneven over time. Jeff took these findings and came back to the homeowner with a solution. Jeff proposed we used PolyLevel to lift, level, and stabilize the patio, and NexusPro to seal off the joints. These products are both waterproof, preventing any more washout to happy. She loved this solution we sent out our installation team. There is no doubt she has the peace of mind she needs for her visitors. 

Crawlspace Repair in Denver, CO

The homeowner of this property was looking to sell but knew he would need to get crawlspace foundation repair before it could go on the market. He knew of Thrashers reputation and that we would easily work with his engineer solution, so he had his real estate agent reach out. System Design Specialist, Anthony Salcedo, came out to meet with them. Anthony took a look at the report, as well as did his own inspection. Anthony found three of the foundation walls were failing, and two of them were in very poor condition. The bad soil in this area was continually pushing in laterally and causing a tremendous amount of aesthetic damage throughout the crawlspace. Per the engineer report, vertical supports were called for, as well as support for the footings on both walls. These specifications were met by using our helical piers and nails.  For the other failing walls, we were able to use our Power Braces and Everbrace. These would ensure the pressure from the soil outside would not be able to press the walls in any further. We were also able to install our Turtl system, which made an easy access point into the crawlspace. The homeowner and real estate agent were very happy with this process and how easy it was from beginning to end. There is no doubt the new homeowners loved the transferrable warranties, and feel safe in their new home. 

Concrete Patio Repair in Lakewood, CO

This homeowner had a back patio that was very damaged and cracked. She wanted to get it back into placed and have a good repair to eliminate the look of it and any tripping hazards. She knew of Thrasher reputation and loved that our company has been in business for over 45 years. She gave us a call and System Design Specialist, Tim Flathers, came out to meet with her. Tim noticed the concrete had moisture that had gotten under the slab and caused the damage. Tim proposed we use our Polylevel to lift and level, NexusPro to seal the joints and cracks, and SealantPro to protect the surface. The homeowner was excited about the project, and loved our warranty and track record. She said yes, and we sent out our installation team! There is no doubt this homeowner is not worrying about her back patio any longer. 

Service Area Zip Codes:

802018020280203802048020580206
802078020880209802108021180212
802148021580216802178021880219
802208022180222802238022480225
802268022780228802298023080231
802328023380234802358023680237
802388023980243802448024680247
802488024980250802568025780259
802608026180262802638026480265
802668027180273802748028180290
80291802938029480299