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Service/exterior-waterproofing
Exterior Waterproofing

Exterior Waterproofing in Lexington, KY

Treating the wall from the wet side. More disruptive, more expensive, and the permanent answer when the wall itself is the leak.

What exterior work involves

Excavating down to the footing, cleaning the wall, repairing what needs repairing, then applying a membrane so water never reaches the masonry in the first place. Drainage goes in at the footing and the trench is backfilled with material that drains rather than holds.

It is a bigger job. Landscaping comes out and goes back. Access matters, and so does the weather. But when it is done, the water is being stopped outside the house instead of managed inside it.

When it is worth it

When the wall itself is deteriorating rather than simply passing water. When the basement is finished and staying finished. When an interior system has already been tried. And when a homeowner would rather pay once.

What is included

  • Basement membrane installation on the exterior wall face.
  • Foundation sealing and repair before the membrane goes on.
  • Whole house exterior waterproofing where the problem runs the full perimeter.
  • Window well installation and drainage.
Exterior waterproofing A cut-away cross-section through the foundation wall and footing, with six numbered points. The list beneath the drawing describes each one. DRY 1 2 3 4 5 6

Exterior waterproofing

  1. The wall is excavated down to the top of the footing and cleaned off.
  2. A waterproofing membrane is applied to the outside face, so water is stopped before it ever reaches the block.
  3. Dimpled drainage board holds the backfill off the membrane and gives the water a clear path down.
  4. Washed stone and filter fabric keep the drain from silting in.
  5. A perforated footing drain takes the water to daylight, or to a basin if the grade will not allow it.
  6. Backfill is graded to fall away from the house, and downspouts are carried past the excavation.

The work

Membrane and drainage board at the footing
Rigid pipe going in alongside the wall
Discharge routed well clear of the foundation

Common questions

What is the difference between interior and exterior waterproofing, and which do I need?

Interior work accepts that water is going to reach the wall, and gives it somewhere to go: a drain at the footing that carries it to a pump instead of onto your floor. Exterior work digs down along the outside of the wall and stops the water before it ever gets there. Interior costs less and is far less disruptive, and it is what most Lexington houses get. Exterior is the answer when the wall itself is the problem. Which one you need comes out of the inspection, not out of a phone call.

What are the signs my basement or foundation needs waterproofing?

White chalky residue on block, a musty smell that never clears, cracks that keep growing, rust at the base of appliances, damp patches that darken a day or two after rain, and humidity you can feel. Any sign of water damage or mold is worth an inspection before it becomes structural.

How long does a typical waterproofing project take?

Anywhere from three days to a week, depending on the scope of work and site conditions. You will get a specific timeline with your written scope rather than a guess over the phone.

Do you offer warranties for your waterproofing services?

Yes. Every system we install carries a lifetime labor warranty.

Water where it shouldn't be?

Call, or text a photo of the wall and we will tell you what we are looking at.

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