Waterproof Balcony
Waterproof Balcony Installation
McAllister Home Builders provides professional balcony waterproofing and deck waterproofing systems designed to protect your home from water damage, leaks, and structural deterioration. We install waterproof coatings, membranes, and traffic systems for balconies, decks, patios, walkable roofs, and elevated surfaces.
Balcony leaks rarely start where they show up — they start at the flashing, the parapet, and the substrate. We strip back to plywood, repair rot, install metal pan flashing, then bond membrane or torch-down before topcoating with a UV-stable traffic surface.
We use industry-approved waterproof deck coatings, liquid waterproof membranes, and traffic-bearing systems designed to handle sun exposure, rain, and daily use while protecting the structure underneath.
What we do
Our waterproof balcony services include:
Why choose us
Why Homeowners Choose McAllister Home Builders
A family-owned, one-stop backyard remodeling contractor — from custom design to clean, professional installation. We focus on durable materials, fast project timelines, and the kind of communication that keeps you informed at every stage.
Family Owned & Operated
You work directly with the family that owns the company — not a sales rep or call center middleman.
One Stop Backyard Remodeling Contractor
Patio covers, pavers, pools, decks, turf, fencing, roofing — one contract, one schedule, one accountable team.
Honest Pricing & Free Estimates
Detailed written estimates with transparent line items and zero high-pressure sales tactics from day one.
Fast Project Timeline
Clean, organized job sites with predictable schedules and clear communication from kickoff through final walkthrough.
Custom Design & Build
From 3D renders to permit-ready plans, every project is shaped around your property and lifestyle.
High Quality Materials
Trex decking, Pebble Tec finishes, Alumawood patio covers — premium specs that last decades.
Service Area
Serving Woodland Hills & surrounding cities within 60 miles.
We build across the Valley and Southern California. If you don’t see your city below, ask us — we often travel further for the right project.
- Calabasas
- Hidden Hills
- West Hills
- Canoga Park
- Winnetka
- Reseda
- Tarzana
- Encino
- Sherman Oaks
- Studio City
- Van Nuys
- Chatsworth
- Northridge
- Porter Ranch
- Granada Hills
- Agoura Hills
- Westlake Village
- Thousand Oaks
- Simi Valley
- Moorpark
- Malibu
- Santa Monica
- Beverly Hills
- Culver City
- Marina del Rey
- Burbank
- Glendale
- Pasadena
- Los Angeles
Frequently asked questions
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How long does a balcony waterproofing job take?
A standard residential balcony runs 3–5 working days including tear-off, flashing, membrane, and topcoat cure time. -
How long does the waterproofing last?
A properly installed torch-down or liquid system lasts 12–18 years before a topcoat refresh. Failures almost always trace back to flashing, not the membrane. -
Can you waterproof over tile or existing deck?
Sometimes, but for SB-326 compliance and a clean install we usually recommend tear-off to substrate. We'll inspect and tell you which path actually solves the problem.
Ready to start?
Contact McAllister Home Builders today.
Get a free waterproof balcony estimate.