Our services
Waterproofing & Drainage
Keep Water Out.
Protect WHAT You Build.
FOUNDATION WATERPROOFING & DRAINAGE IN MICHIGAN
KEEP YOUR FOUNDATION DRY. KEEP YOUR STRUCTURE STRONG.
Water is a builder’s worst enemy. A weak waterproofing system leads to cracks, leaks, mold, and costly structural repairs. That’s why we don’t cut corners. Our waterproofing and drainage solutions are designed to divert water, seal foundations, and prevent long-term damage—guaranteed.
Exterior Waterproofing
We offer multiple systems to fit every budget.
Interior Drainage Systems
Prevents basement flooding and water buildup.
French Drains & Weeping Tiles
Directs groundwater away from foundations.
Foundation Crack Sealing
Stops leaks before they become major issues.
Retaining Wall Drainage
Prevents soil erosion and hydrostatic pressure buildup.
WHY BUILDERS CHOOSE DENEK CONTRACTING
NO LEAKS. NO FAILURES. JUST RESULTS.
Waterproofing That Lasts
Water damage isn’t an ‘if’—it’s a ‘when’ unless you prevent it.
We use high-performance waterproofing materials and proven installation techniques to keep water out for good.
Engineered Drainage Systems
Every drop of water needs a place to go—just not inside your building.
We design and install drainage solutions custom-fit to your project’s terrain and structure.
Protection That Pays Off
A dry foundation means fewer repairs, fewer callbacks, and long-term success.
Investing in proper waterproofing prevents thousands in potential damages down the line.
Who Needs Waterproofing Done Right?
We work with builders and developers who can’t afford water damage, leaks, or foundation failures.
We Work With:
- Home Builders & Developers – Keep basements and crawl spaces dry from day one.
- General Contractors –Ensure every foundation is sealed and drainage is properly managed.
- Property Owners & Investors – Prevent costly repairs with long-lasting waterproofing solutions.
what we build
FOUNDATION WATERPROOFING
Waterproofing isn’t optional—it’s essential. Our advanced barrier systems and sealants keep moisture out, preventing cracks, leaks, and mold growth.
- Exterior Waterproofing Membranes
- Interior Drainage Systems
- Sealants & Protective Coatings
- Foundation Crack Repair
DRAINAGE SOLUTIONS
Precision-poured concrete is the key to long-lasting, crack-free structures. We reinforce every pour, ensuring maximum durability and stability under any conditions.
- Exterior Basement Drain Tile and Peastone
- French Drains
- Weeping Tile Systems
- Sump Line Installation
COMMERCIAL & RESIDENTIAL APPLICATIONS
From single-family homes to large-scale commercial developments, we provide custom waterproofing and drainage solutions that fit your project’s needs.
- Residential Basements & Crawl Spaces
- Multi-Unit Developments
- Commercial Buildings & Warehouses
- Existing Water Issues Diagnosed and Repaired
OUR WATERPROOFING PROCESS
A successful waterproofing system isn’t just about materials—it’s about execution. Here’s how we make sure every structure stays dry.
- Site Evaluation & Water Flow Analysis - Identifying risk areas before the first dig.
- Excavation & Foundation Prep - Properly grading and preparing surfaces for protection.
- Barrier & Membrane Installation - Applying high-performance waterproofing systems.
- Drainage Integration - Drain Tile and Peastone Installed per Code.
- Final Inspection & Testing - Ensuring no weak points or water penetration risks.
Ready to get started?
Areas we serve
Ann Arbor, MI
Bloomfield Hills, MI
Clarkston, MI
Dearborn, MI
Fraser, MI
Harrison Township, MI
Independence Township, MI
Leonard, MI
Metamora, MI
Northville, MI
Oak Park, MI
Pontiac, MI
Romeo, MI
Southfield, MI
Troy, MI
Warren, MI
Wayne, MI
White Lake Township, MI
Auburn Hills, MI
Brighton, MI
Clinton Township, MI
Detroit, MI
Garden City, MI
Highland Township, MI
Keego Harbor, MI
Livonia, MI
Mount Clemens, MI
Novi, MI
Orchard Lake Village, MI
Redford, MI
Royal Oak, MI
Sterling Heights, MI
Utica, MI
Washington Township, MI
West Bloomfield, MI
Birmingham, MI
Canton, MI
Commerce Township, MI
Farmington Hills, MI
Grosse Pointe, MI
Howell, MI
Lake Orion, MI
Macomb Township, MI
New Baltimore, MI
Novi Township, MI
Plymouth, MI
Rochester Hills, MI
Shelby Township, MI
Sylvan Lake, MI
Walled Lake, MI
Waterford Township, MI
Westland, MI
FREQUENTLY ASKED QUESTIONS
EXCAVATION FAQ
What waterproofing systems do you install?
We install exterior waterproof membranes, interior drainage systems, sealants, and vapor barriers tailored to your project’s needs.
How do you manage water drainage around foundations?
We engineer grading solutions and install French drains, drain tile, sump pumps, and retention systems to redirect water safely away.
Can you waterproof existing foundations?
Yes. We can excavate around existing homes and install exterior membranes and drainage as needed.
What signs indicate poor drainage or waterproofing issues?
Basement leaks, wall discoloration, foundation cracks, mold, or pooling water around your home are all red flags.