Tie Rod Hole Leak Repair & Waterproofing (Permanent Interior Repair)

Q: How long does the repair take?

Most tie-rod leak repairs take 60 to 90 minutes to complete.

Q: Will it leak again after the repair?

The injected resin completely fills the rod hole cavity, creating a permanent waterproof barrier. The repair is guaranteed.

Q: How much does tie-rod hole leak repair cost?

A single leaking tie-rod hole typically costs $245 to $295 to repair. Multiple tie-rod holes repaired during the same appointment may cost $137 to $175 each, or as low as $100 each when 5 or more are repaired.

Leaking tie-rod hole with associated mud staining — A tie-rod hole is 5/8" in diameter and can leak quite a bit when there is a lot of water pressure against a foundation wall

Tie rod hole leaks are one of the most common causes of basement seepage in poured concrete foundations.
They often appear as a dark grey circle and may develop into visible water streaks on the wall during rain.
The good news: tie rod hole leaks can be permanently repaired from inside, with no exterior excavation.

In some cases, what appears to be a simple leaking tie-rod hole is actually part of a larger leak path, especially when a foundation crack runs through or near the tie-rod hole. When that happens, the proper repair is typically a full polyurethane foundation crack injection rather than a simple rod-hole repair, since repairing only the tie-rod hole may leave the crack as an active pathway for water entry.

Since 2002, AquaGuard Injection & Waterproofing® has repaired thousands of tie rod hole leaks across the GTA — backed by a 25-year guarantee.

📞 Call 888-284-2384
|
💬 Text Us photos of your leak
|
Get a Quote

What Is a Tie Rod Hole Leak?

During construction, steel tie rods hold the wall forms together while the concrete cures.
After the forms are removed, these rods are removed leaving an open hole; sometimes the tie-rods remain stuck inside the wall.

When tie-rod holes are leaking, sometimes there are visible rust stains, but mostly there is visible mud or mineral staining
on the foundation wall just beneath the rod hole.

Section of poured concrete foundation wall with patched tie-rod holes — Tie-rods hold the forms together as the concrete cures. There are 4 tie-rods used to hold together a pair of forms and they are typically patched over by the builder during home construction

Common Signs of a Tie Rod Hole Leak

Mud staining on a poured concrete wall in line with a tie-rod hole
Mineral staining at a tie-rod hole
Water streaks running down the wall from a tie-rod hole during wet weather
A dark area surrounding a tie-rod hole indicative of concrete saturation

Visual Signs of Tie Rod Hole Leaks

Leaking tie-rod hole with mineral staining

Lower tie rod holes with water stained concrete — Water saturated and stained concrete surrounding tie-rod holes

Pair of leaking tie-rods with visible mud staining on the foundation wall — Most leaking tie-rod holes will have visible mud staining

How We Repair Tie Rod Hole Leaks (No Excavation)

Locate the leaking tie-rod hole.
Plug the hole to minimize the escape of injected resin.
Drill a channel into the rod hole.
Inject polyurethane resin into the cavity (tie-rod hole).
The polyurethane expands to completely fill the cavity.
Leak path is sealed permanently—not a surface patch.
If a foundation crack is present, the crack is evaluated separately to determine whether a full polyurethane crack injection is required.
Excess polyurethane is scraped off for a clean, professional look.

This is a proper repair that keeps water on the exterior of the foundation.
Simply patching over a tie-rod hole with hydraulic cement, or a similar product, will cause water to be trapped in the wall
and cause concrete deterioration over time. Patch repairs often do not stand the test of time.

Completed tie-rod hole injection — This is what a completed tie-rod hole injection looks like

Pricing & Warranty

Tie-rod hole repairs are usually much less expensive than foundation crack repairs when the problem is limited to the rod hole itself.
A single leaking tie-rod hole typically costs $245–$295, while multiple tie-rod holes repaired during the same appointment may cost $137–$175 each, or as low as $100 each when 5 or more are repaired.

Number of Tie Rod Holes	Cost per Hole (Typical)
1 hole	$245–$295
2–4 holes	$137–$175 each
5+ holes	As low as $100 each

During the appointment, we also check the surrounding wall for related problems such as nearby foundation cracks, additional leaking tie-rod holes, pipe penetrations, or other seepage paths that may not have been noticed before.

✅ No excavation required
✅ Work completed in 60–90 minutes depending on the quantity
✅ Long lasting, guaranteed waterproofing seal

Why Homeowners Choose AquaGuard Injection

In business since 2002
Thousands of tie-rod hole leaks repaired across the GTA
Specialists in basement leak repair – we only sell you what you need
No digging required
25-year guarantee on the repair

Also Have a Leaking Foundation Crack?

Tie-rod hole leaks and foundation crack leaks often occur on the same foundation wall. In some cases, a foundation crack runs directly through a tie-rod hole, creating multiple pathways for water to enter the basement.

Like tie-rod hole leaks, many leaking foundation cracks can be permanently repaired from inside the basement using polyurethane injection, often without excavation.

Learn About Our Foundation Crack Repair Process

Service Area – We Come to You

We repair tie rod leaks throughout the Greater Toronto Area, including:

Aurora,
Newmarket,
Richmond Hill,
Vaughan,
Mississauga,
Oakville,
Burlington,
Markham,
Bradford,
King City,
Woodbridge.

Contact Us to Request a Quote

Same-day and next-day scheduling available.

📞 Call 888-284-2384
|
💬 Text Us photos of your basement leak
|
Get a Quote

Tie-Rod Hole Leak – FAQs

How do I know if I have a tie rod leak?

Common signs of a leaking tie-rod hole include mud staining, mineral staining, water streaks below a circular patch in the concrete wall, and damp concrete surrounding the tie-rod hole.

Can tie-rod leaks be repaired from the inside?

Yes. Tie-rod leaks are almost exclusively permanently repaired from inside using high-pressure injection—no exterior excavation required.

How long does the repair take?

Most appointments take 60–90 minutes, start to finish.

Will it leak again after the repair?

The injected resin completely fills the rod hole cavity resulting in a permanent waterproof barrier, and the repair is guaranteed.

How much does tie-rod hole leak repair cost?

A single leaking tie-rod hole typically costs $245–$295 to repair. Multiple tie-rod holes repaired during the same appointment may cost $137–$175 each, or as low as $100 each when 5 or more are repaired.