House Foundation Repair & Basement Waterproofing in Castle Rock, CO

Does your home or commercial property have bowing foundation walls, sinking concrete slabs, or leaky windows in the basement? There is no reason to worry — Thrasher Foundation Repair is your trusted expert, providing solutions for these problems and so much more since 1975.

Contact Thrasher Foundation Repair to schedule a free inspection and cost estimate on any of our reliable services, including basement waterproofing, foundation repair, crawl space encapsulation, and concrete repair. We proudly serve Castle Rock, CO and nearby areas.

Testimonials From Castle Rock
I am thrilled with how the project came out.
Testimonial by Robert R. from Castle Rock, CO
We are so happy we do not have any more water getting into our basement.
Testimonial by Cecil D. from Castle Rock, CO
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Durable home foundation repairs in Castle Rock

No matter how small the foundation damage may seem, problems can worsen and impact other areas of a home or building, leading to issues like sticking windows and doors, cracked drywall, a tilting chimney, and moisture intrusion. From cracked foundation floors to bowing basement walls and foundation settlement, Thrasher Foundation Repair provides permanent solutions for these structural problems and more.

Home 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

Our House 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

Schedule a free foundation inspection and service estimate to get personalized repair solutions for your property. We proudly serve Castle Rock and nearby areas in Colorado.

Lasting basement waterproofing system in Castle Rock

If your home or building has leaky egress windows, damp walls, excess condensation, mold, or other moisture intrusion problems, contact the basement waterproofing experts at Thrasher Foundation Repair.

We can eliminate basement flooding and leaking with a patented waterproofing system customized to suit any property, creating a dry below-grade space and keeping it that way for years to come! We proudly serve Castle Rock and nearby areas in Colorado.

Schedule a free basement waterproofing inspection and service estimate to learn more. We proudly serve Castle Rock and nearby areas in Colorado.

Our basement waterproofing system includes:

  • Interior drainage systems
  • Sump pumps
  • Replacement egress windows
  • Window wells
  • Mold treatment
  • Dehumidifiers

Crawl space repair & encapsulation services in Castle Rock

Do you have a musty, wet, and humid crawl space in your home or building? Don’t deal with the mess on your own. Contact the crawl space encapsulation and repair professionals at Thrasher Foundation Repair! We provide a suite of crawl space solutions designed to create a drier, more secure area, including a moisture-proof vapor barrier, crawl space doors, crawl space support jacks, and more.

Concrete repair & concrete leveling experts in Castle Rock

If you’re tired of sinking, cracked driveways, pool decks, sidewalks, or other concrete slabs around your property, contact the concrete repair professionals at Thrasher Foundation Repair. We offer simple, innovative solutions that are far superior to the standard mudjacking or concrete replacement. Our cracked concrete repair, concrete leveling, and concrete sealing systems install with no mess and no stress. Plus, they are quick to cure, so you can use your slabs soon after installation.

Never worry about UV rays, debris, gas, water, or other liquids ruining your slabs. Our solutions are incredibly durable and address the underlying cause of concrete damage, meaning you get lasting results that save you money!

Schedule a free concrete repair estimate to learn more. We proudly serve Castle Rock and the surrounding areas.

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

The Thrasher Difference.

No matter the job - we aren't going to feel good about the hard work we've done until you're happy. So we'll do it right or make it right. That's the Thrasher promise.

For the last 45 years in the basement and foundation repair industry, we've focused on the value of doing whatever it takes to get the job done and "wow" our customers every step of the way.

Explore The Thrasher Difference

Before and After Pictures from Castle Rock
Concrete Driveway Repair in Little Rock, CO

Concrete Driveway Repair in Little Rock, CO

Before After
Concrete Driveway Repair in Little Rock, CO Concrete Driveway Repair in Little Rock, CO

When Robert was looking for someone to fix his concrete, he got two other offers. But he chose Thrasher because we gave him the best experience. We gave him a good price and took the time to explain the problem to him, while the other contractors just gave him a price without any explanation.


The reason Robert needed his concrete fixed was that he recently had surgery on his back. He had a damaged driveway and his walkway to the front door had sunk into the ground because of soil erosion. It was important to him that there were no tripping hazards or uneven concrete near his home. 


To fix these problems, our team used special materials called Polyfoam and NexusPro. The damaged driveway was a challenge but our team, led by Dakota, did an amazing job and Robert was really happy with how it turned out.

Patio Settling Repair in Castle Rock, CO

Patio Settling Repair in Castle Rock, CO

Before After
Patio Settling Repair in Castle Rock, CO Patio Settling Repair in Castle Rock, CO

This homeowner was worried about water coming into his home because of his patio sinking. There was big gap between where the wall ended and where the concrete should lay. He called Thrasher because he knew of our great reputation and professionalism. System Design Specialist, Mike Williams, came out to meet with him. Mike found the front patio was settling towards the house due to poor soil used as fill under the slab. Mike took these findings back to the homeowner and together decided on a solution. We used our Concrete Protection System, including Polylevel to lift and level, and NexusPro to fill in the cracks and joints. Best thing about our products, is that they are waterproof, so they prevent any more sinking due to washout. The homeowner loved this solution, and there is no doubt they are no more worried about water getting in or any trip hazards they had. Check out the before and after of this one! 

Recent job requests in Castle Rock, CO

Neighborhood: Castle Rock, 80108

Neighborhood: Old Gate Road, Castle Rock, 80104

We have a 6 foot section of our front sidewalk that have sunk.

Neighborhood: Whisper Canyon Rd, Castle Rock, 80108

Multiple cracks on s long driveway

Neighborhood: Oakcrest Circle, Castle Rock, 80104

I keep getting water coming in my crawl space, I looks like it is coming in from the ground up

Neighborhood: Wingtip Way, Castle Rock, 80108

Cement patio and steps sinking in areas

Neighborhood: Mentha Dr, Castle Rock, 80108

Riveway outside RV garage jhas settled or boe=wed in the middle of a section and needs to be lifted and stabalized

Neighborhood: Soaring Eagle Lane, Castle Rock, 80109

Front patio is cracked and sinking

Neighborhood: Gentry Place, Castle Rock, 80104

Patio away from house roughly 14x14' that is settling. Need repair as we are putting a hot tub on the pad.

Neighborhood: Castle Rock, 80104

Concrete leveling front walkway and back patio

Neighborhood: N. Mesa Drive, Castle Rock, 80108

We've had ground settling in certain areas and would like an evaluation asap to determine the cause and next steps. Please call if you need more information and to schedule your free counsel. THANK YOU!
Job Stories From Castle Rock, CO
Driveway Repair in Castle Rock, CO

This homeowner had back surgery recently and wanted all of the uneven areas of his concrete leveled to avoid trip hazards. He had a couple other bids before, but wanted Thrashers opinion as well. System Design Specialist, Jeff Schlimm, came out to meet with him. Jeff did his inspection and how the extensive damage to one area of his driveway. His walkway to his front door had settled due to washout over time. Jeff took these findings and went back to the homeowner with a solution. The homeowner was impressed with the inspection and how we showed him the problem and what caused it versus just giving him a number. We used PolyLevel to lift and stabilize the slab, and NexusPro to seal the joints and cracks that were letting water through and causing the tripping hazards. The homeowner was trilled with how the project went and we know he has the peace of mind he needs for his driveway. 

Concrete Repair in Castle Rock, CO

This homeowner was having their concrete in front of their home slant toward the home. This was causing water to slide and build up towards the foundation wall. They knew they needed to get this taken care of, and needed to get someone out. They knew of Thrasher reputation and professionalism, so they gave us a call. System Design Specialist, Mike Williams, came out to meet with them. Mike noticed the front patio was settling towards the house due to poor soil used as fill under the slab. Mike talked with the homeowners, and decided to use our Concrete Protection System. This would consist of PolyLevel to lift and level the concrete back to place, and NexusPro to seal the cracks and joints. The homeowners were extremely happy with the outcome. There is no doubt they are not worrying about any more water getting into the basement!