House Foundation Repair & Basement Waterproofing in Longmont, 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 Longmont, CO and nearby areas.

Testimonials From Longmont
Very grateful for the Thrasher team! Very impressed with their level of professionalism and their execution...
Testimonial by Jeremy L. from Longmont, CO
I can not express my gratitude enough! Thrasher was so professional and it is obvious they care about they...
Testimonial by Larry A. from Longmont, CO
The project went well and Dakota did a great job!
Testimonial by Gary D. from Longmont, CO
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Durable home foundation repairs in Longmont

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 Longmont and nearby areas in Colorado.

Lasting basement waterproofing system in Longmont

If your home or building has 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 Longmont and nearby areas in Colorado.

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

Our basement waterproofing system includes:

  • Interior drainage systems
  • Sump pumps
  • Mold treatment
  • Dehumidifiers

Crawl space repair & encapsulation services in Longmont

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.

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Concrete repair & concrete leveling experts in Longmont

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 Longmont 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 Longmont

Photo Galleries From Longmont
This vapor barrier will keep moisture off of the walls in the coffee shop.
Coffee Shop Waterproofing
The SmartJacks were the repair for these support beams failing. The SmartJacks were installed with expansion joints around to posts as well, so that if the floor of the home ever started to sin, the support beams will not be affected.
Support Beams Sinking Repair in Longmont, CO
Job Stories From Longmont, CO
Water Pooling on Concrete - Longmont, CO

These homeowners recently purchased a home and were having concerns with the driveway sinking towards the house. They were worried about rain and snowmelt pooling near the foundation, which could cause future foundation problems. They wanted a company that knew how to fix their problem, used quality materials, cleaned up after themselves, and offered great warranties - so they called Thrasher! One of our System Design Specialists, Rob Griffin, came out to meet with them. After the inspection, Rob found that due to poor soil compaction and water over time, the concrete in and around the garage has sunk towards the home. Rob proposed we use our PolyLevel to lift and level the concrete, NexusPro as a caulking to seal in-between the slabs and cracks, and SealantPro to extend the lifetime of the concrete. While out on the job, the crew noticed a dysfunctional downspout, which was a key issue the concrete failed the first time. Before the crew left, they fixed this downspout to ensure the homeowners were as taken care of as possible! The homeowners were so happy with the work, and could tell that Thrasher did care about the work we were doing for them. There is no doubt that they are done spending their time worrying about water damaging their concrete and foundation!