We find the RIGHT solution to your wet basement problems

Reliable & cost-effective basement waterproofing solutions

Over 75 Years of Services
We approach the task of repairing your home not just as a job, but as an important responsibility. We measure our experience by generations; Since 1933 our reputation for integrity, honesty, and quality craftsmanship have set the standard in home structural repair services.

Never Fear… Olshan is Here!

Call us today at 303-625-7944 or fill out the quick contact form to schedule your free estimate.

Patented Technology
Olshan uses the Water Lock™ Plus System to waterproof basements and reclaim valuable living space. This exclusive, dual-channel waterproofing technology is designed to manage water intrusion with multiple, redundant control measures.

Available Lifetime Warranty
EVERY Water Lock™ Plus System installation is backed by an Available Lifetime Transferable Warranty.

Free Estimates
Olshan provides FREE - NO OBLIGATION - ESTIMATES and structural damage assessments by trained structural technicians.

"I had several estimates for the initial repair and choose Olshan because of the warranty… Still I had doubts that it would be honored. When my house was inspected for the warranty repair and I was told it would be done I knew I had made the right choice in Olshan. Today so many warranties are not honored. I will continue to recommend your company in the future."

Nell B.

If you have a wet basement, or see signs of structural problems we would be happy to offer a free professional evaluation and written estimate — there's no obligation. If you don't have a problem we will be happy to tell you.

In fact 20% of all homes we look at don't require repair at the time of our inspection.

Our full list of services include:

• Interior Basement Waterproofing & Repair
• Exterior Basement Waterproofing & Repair
• Indoor Air Quality Control
• Sump pumps
• Root Barriers
• Basement Crack Repair
  
• Basement Wall Repair (structural)
• Crawl Space Waterproofing, Repair & Encapsulation
• Foundation Repair
• Drainage Solutions

Not all basement problems are alike.

That's why Olshan carefully investigates your basement to uncover the source of your problems, before developing a comprehensive repair plan unique to your home.

To accomplish this, we offer a variety of quality products and services designed to fit your home’s needs and your budget requirements.

Whether you want to waterproof your basement from the exterior, leaving your finished basement untouched or prefer interior waterproofing - Olshan can help.

We also offer knowledge, products and resources designed to protect the structural integrity of your foundation and basement walls. Plus, air quality packages that help eliminate mold and allergens from your home.

Do you know the best way to waterproof your basement?

303-625-7944