
Reliable Waterproofing & Foundation Repair Solutions
Protect your home from water damage and foundation issues with professional waterproofing, drainage, and excavation services in Danbury, CT, and surrounding areas.
What We Do
Waterproofing, Foundation & Drainage Services

Waterproofing
Waterproofing
Keep water out of your foundation and basement with a plan matched to how it's getting in.
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Foundation
Foundation Repair
Structural repair for cracked, settling, or bowing foundation walls.
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Waterproofing
Basement Waterproofing
Stop seepage and dampness so your basement stays dry and usable.
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Waterproofing
Exterior Foundation Waterproofing
Seal and drain the outside of your foundation wall to block water at the source.
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Waterproofing
Interior Basement Waterproofing
Manage water that gets in with interior drainage, without digging up the exterior.
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Foundation
Foundation Crack Repair
Seal and stabilize foundation cracks before they let in water or spread.
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Waterproofing
Basement Leak Repair
Locate the entry point and repair active basement leaks.
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Drainage
French Drain Installation
Redirect groundwater away from your foundation and soggy areas of the yard.
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Foundation
Foundation Drain Installation & Repair
Install or repair footing drains that carry water away from the foundation.
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Drainage
Sump Pump Installation & Replacement
Install or replace a sump pump to move collected water out and away.
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Drainage
Yard Drainage Solutions
Fix pooling, soggy lawns, and runoff that keep water near your home.
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Drainage
Grading & Drainage Correction
Reshape the ground around your home so water flows away from it.
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A Local Danbury Team You Can Rely On
W&G Excavation Services is a locally operated company based in Danbury, CT, specializing in waterproofing, foundation repair, drainage solutions, and excavation. We deliver reliable, long-lasting solutions that protect your property, prevent water damage, and keep your foundation strong.
Every recommendation starts with where the water comes from and why — so the work addresses the cause, not just the symptom.

Featured Projects
Real project photos from waterproofing, foundation, and drainage work.

Exterior Waterproofing
Foundation wall excavated to the footing, membrane applied, and drainage installed along the perimeter.

Interior Drainage
Floor-cut perimeter drain and sump basin installed to manage basement water from inside.

Drainage & Grading
Trenching and regrading to redirect groundwater away from the foundation and off the property.
Why W&G
Why Homeowners Choose Us
Locally operated
Based in Danbury, CT — we know the local soil, the water table, and the foundation conditions that shape every project here.
Water first
Every recommendation starts with where the water comes from and why — so the fix addresses the cause, not just the symptom.
Foundation focus
Structural and water work go together. We stabilize the wall and relieve the pressure behind it in the same plan.
Straightforward
We tell you what the issue is, what your options are, and what each one does — clearly and in plain language.
Where We Work
Serving Danbury & Surrounding Connecticut
We're based in Danbury and work across the region. Find your town and explore what we see most in each area.
View all service areasQuestions
Common Waterproofing & Foundation Questions
Straight answers on waterproofing, foundation repair, drainage, estimates, and how we work — without promises on price or timing.
See all FAQsHow do I get an estimate for waterproofing or foundation repair?
Use the Get a Free Estimate button anywhere on the site or call (203) 617-8074. We'll talk through what you're seeing, ask a few questions about your property, and schedule a time to look at the issue in person before putting together a recommendation.
Do you charge for estimates?
We provide estimates so you can understand the scope and your options before deciding on any work. Reach out and we'll walk you through the process for your specific situation.
What areas do you serve?
We're based in Danbury, CT and work in Danbury, Newtown, Greenwich, Sherman, and Branford. If you're nearby and not sure whether you're in our area, just call — we'll let you know.
How quickly can you come out?
We're a locally operated company, so we're generally able to schedule promptly. When you contact us we'll give you a realistic idea of timing based on the current schedule and the nature of the issue.
What's the difference between waterproofing and damp-proofing?
Waterproofing is designed to stop water under hydrostatic pressure — the kind of force that pushes groundwater through walls and floors. Damp-proofing resists moisture vapor but won't hold back standing water. If you have active seepage or a high water table, waterproofing is the appropriate approach.
Do I need exterior or interior waterproofing?
It depends on access and the source of the water. Exterior waterproofing stops water at the outside of the wall and is the most thorough fix when excavation is practical. Interior waterproofing manages water from inside when exterior excavation isn't feasible — under a finished space, a tight lot, or a deck. Many homes benefit from both.
Protect Your Foundation — Start With a Free Estimate
Water damage and foundation issues don't wait. Get a straightforward assessment from a local Danbury team that knows Connecticut homes.