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Interior Drain Tile System

Interior Drain Tile System

At Anchored Walls, we install interior drain tile systems designed to manage groundwater before it ever reaches your basement floor.

Google4.9/ 5286 Google reviews
1978
Serving Iowa since
Lifetime
Transferable warranty
BBB Accredited Business
A+ Rating
Risk Free
Money-Back Guarantee
Licensed & insured

At Anchored Walls, we install interior drain tile systems designed to manage groundwater before it ever reaches your basement floor. This system relieves hydrostatic pressure, collects water at the footing level, and directs it safely to a sump pump for removal, providing year-round protection for finished and unfinished basements alike.

Google reviews

What homeowners say.

4.9 / 5 from 286 Google reviews.

Interior Drain System

How Interior Drain Tile Works

Interior drain tile is a powerful, hidden solution for managing basement water intrusion. Installed just below the slab, it quietly directs groundwater away from your foundation to prevent damage.

Installation Steps:

  1. 1. Site Preparation
    Protect finished areas, control dust, and mark the interior perimeter for trenching.

2. Trench Excavation
Cut a trench along the interior wall, exposing the footing where water pressure builds.

3. Weep Hole Drilling
Drill weep holes every 6 inches to release trapped wall moisture into the trench.

4. Drainboard Installation
Install patented Drainboard to channel wall seepage. Optional membrane can be added for extra protection.

5. Clean Stone Fill
Fill the trench with clean, washed pearock to promote flow and prevent clogging.

6. Plastic Wrap Barrier
Cover the trench with a plastic barrier to contain dust and prep for concrete.

7. Sump Pump Integration
Route collected water to a sump pit, where it’s pumped safely away from the foundation.

8. Concrete Restoration
Re-pour concrete flush to the existing slab, leaving a clean, finished surface.

Waterproofing System in progress

When Interior Drain Tile Is the Right Solution

Interior drain tile is often the most practical and effective waterproofing method when exterior excavation isn’t feasible. Homes with high groundwater pressure, persistent seepage along the cove joint, or moisture rising from beneath the slab can all benefit from this system. It’s particularly useful in basements that are already finished or are being prepared for finishing, where protecting flooring, drywall, and personal belongings becomes a top priority.

This solution also works well for properties with limited exterior access, such as narrow lot lines or homes with extensive landscaping or patios that would make outdoor excavation costly and disruptive. In most cases, sealants or exterior coatings only offer temporary solutions. Interior drain tile provides a more permanent fix. By collecting water at the footing level and routing it to a sump pump, the system stops moisture before it can rise to the surface or damage your basement.

Wet Basement

Why Homeowners Trust Anchored Walls

For more than 40 years, Anchored Walls has helped families in our Iowa service area protect their homes with proven foundation and waterproofing systems. We’re not a franchise—we’re a locally founded and operated company that believes in permanent solutions, done right the first time.

Every drain tile system we install is based on real field experience and built to handle the unique challenges of Midwest soil and weather. Our work is clean, careful, and built to last—because that’s what we’d expect in our own homes.

Interior Drain System

Request an Interior Drain Tile Inspection

Don’t wait for another wet basement to show you there’s a problem. Anchored Walls is the local contractor near you trusted for long-term waterproofing solutions. Want to know the cost of interior drain tile for your home? Schedule an inspection today and let our experts design a drainage plan that works—before the next storm hits.

Experienced hands. A clear plan.

Helping Iowa homeowners since 1978.

A repair plan built around your home.
Start with a free inspection. We explain what we find and put the recommended work in writing, so you can make an informed decision.

Schedule free inspection
★★★★★Google review
“Gabe & Taxson did a wonderful job of waterproofing our basement. They worked so hard chiseling concrete, carrying it up the stairs in buckets, then carrying rock and replacement cement down the stairs to fill in the dug up places, but most of all, they cleaned up the mess! Kip McMillen from United Services…”
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recommended this company to do our job. We would recommend this company for any job that you may have.”
Marjorie M.Verified Google review · Winterset, IA · Sep 2025
Lifetime transferable warranty

Lifetime transferable warranty

Protection that stays with the home, including when ownership changes. See the written warranty for covered work.

Money-back guarantee

Money-back guarantee

Your money is never at risk. We stand behind our work with a written money-back guarantee.

Five-star service guarantee

Five-star service guarantee

A clear plan, respectful crews, and a commitment to the experience as well as the repair.

Frequently Asked Questions

How do I know if my crawl space needs repair?

Look for signs like sagging subflooring, musty smells, mold growth, high humidity, standing water, or visible rot on floor joists and beams. These often show up first in closets or laundry rooms above the crawl space. All of these issues point to possible structural or moisture problems below.

Why is there mold in my crawl space?

Mold is a result of excessive moisture in the crawl space of your home. It’s very important that you take care of a moldy crawl space problem as soon as you notice that something is wrong. If left untreated, mold can cause a number of problems for the structural integrity of your home, as well as your family’s health. If you don’t repair your foundation, water will eventually seep in. This causes an assortment of additional problems for the structural integrity of your home.

What causes crawl space moisture?

Crawl space moisture comes from water seepage, improper yard drainage systems, soil settlement and condensation. Regardless of whether your crawl space is dirt, concrete, vented or unconditioned, these lower areas underneath the home tend to endure the most damage due to the many changes in weather conditions, high temperatures and humidity levels. Humidity and moisture easily travel through your crawl space and can begin to infiltrate the structure of your home.Damp or wet crawl spaces are perfect homes for insects, rodents and other critters. This area underneath your home can be extremely unhealthy, destructive and dangerous. Your wet crawl space can also act as a breeding ground for mold and mildew growth. Mold spreads easily throughout your home when it begins in your crawl space. Mold, as well as wood rot, can negatively affect your home’s indoor air quality. That’s why it’s important to take care of crawl space moisture problems as soon as you notice them.

Are foundation cracks serious or just cosmetic?

Some small, vertical cracks may be normal settling, but if a crack is widening, leaking water, or forming a stair-step or horizontal pattern, it could signal a structural issue. It’s always best to have cracks professionally evaluated to determine whether repair is needed.

If I don't repair my foundation, what could happen?

If you don’t repair your foundation, water will eventually seep in. This causes an assortment of additional problems for the structural integrity of your home.

A local team for your Iowa home.

From our Winterset location, we serve Des Moines, Ankeny, Waukee, Johnston, Urbandale, Clive, Ames, and surrounding communities. Check your ZIP for service at your address.

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