Exterior Basement Waterproofing
Excavation, foundation membrane and exterior drain tile, plus downspout and grading corrections — water stopped before it reaches your basement wall.
Free Exterior Waterproofing Inspection
A real look at the problem and a written number. No obligation.
Insured · 20-Year Fully Transferable Warranty · We'll call you back to schedule your inspection.
- Insured
- 20-Year Fully Transferable Warranty
- Free inspection, written number
Overview
Exterior waterproofing stops water before it ever reaches your foundation walls. The outside of the foundation is excavated, a waterproof membrane or coating goes on the wall, and exterior drain tile — an exterior French drain at the footing — carries the water away.
It is the most complete fix because it addresses the problem at its source, and it is more involved than interior work because of the excavation. We finish outside, too: the grading and downspouts are corrected, because a surprising share of basement water is roof water delivered to the footing by a downspout that ends at the wall.
In many homes the best answer combines both — an interior drain and sump for groundwater, exterior membrane and drainage for the walls. A free inspection tells you which, in writing, before anything is dug, and the work is backed by our 20-year fully transferable warranty.
When exterior waterproofing is the right fix
- Water comes through the face of the wall during heavy rain, rather than at the floor
- Yard drainage, grading that has sunk toward the house or short downspouts are sending water to the foundation
- The walls themselves are failing, or the water problem is severe
- The basement is finished and you would rather not open the walls and floor — the work is done from outside
- You want water kept off the foundation entirely, for maximum long-term protection
Signs you need exterior waterproofing
- Wet basement walls during rain events
- Water seeping through the wall rather than at the floor
- Yard drainage issues causing water to pool near the foundation
- Downspouts that end at the foundation wall
- Grading that has settled back toward the house
- Efflorescence or staining on the inside face of the wall
How the job goes
Free Inspection
We identify where water is entering your basement and whether an exterior drain and membrane, an interior system, or both is the right fix.
A Plan for Your Foundation
We lay out the excavation, the membrane or coating, the footing drain and where its water goes, and put the scope in writing.
Excavation & Waterproofing
We carefully excavate along your foundation, apply the waterproof membrane or coating, and install drain pipe with washed stone at the footing.
Restore, Test & Warranty
We backfill, correct the grading and downspouts, restore the landscape, test the drainage and provide your 20-year fully transferable warranty.
What you get
- Stops water before it reaches the foundation wall
- Addresses the problem at its source
- Grading and downspouts corrected so roof water stays away
- Work done from outside — finished basements stay closed
- Backed by our 20-year fully transferable warranty
Questions homeowners ask
Still have questions?
A free inspection answers them for your basement, not a typical one.
Exterior Waterproofing we have done
Photographs from our own jobs across MI. Job photos, not before-and-afters.
Foundation dug out from the outside, with a dimpled drainage membrane on the wall.
A discharge line run out through the yard to a pop-up emitter, away from the foundation.
Ready for Exterior Basement Waterproofing?
Free inspection, written number, no obligation. We'll call you back to schedule your inspection.
Related Services
Interior Basement Waterproofing
Interior drain tile, sump pumps, wall vapor barriers and crack sealing — water caught at the floor edge and pumped out, with no digging outside.
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Foundation Repair & Foundation Waterproofing
Expert foundation crack repair, foundation waterproofing and structural stabilization for homes across Southeast Michigan.
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Crack Injection
Professional foundation crack injection to permanently seal leaking cracks in Southeast Michigan.
Learn MoreGuides
Interior vs. Exterior Waterproofing: Which Is Right for Your Home?
A homeowner's guide to understanding the difference between interior and exterior basement waterproofing systems.
Why Your Basement Leaks After Heavy Rain (and How to Fix It)
Understand the common causes of basement flooding after rainstorms and what you can do to prevent it.
Exterior Waterproofing by town
Towns we serve: New Haven, New Baltimore, Chesterfield, Richmond, Macomb Township, Clinton Township, Shelby Township, Mount Clemens, Sterling Heights, Troy, Grosse Pointe.
Protect Your Home Today
A free inspection, a written number, and a crew that answers the phone. No obligation.