Flat Roof Waterproofing
Protect flat and low-slope roofing systems from standing water, membrane deterioration, and moisture infiltration. We install and restore EPDM, TPO, and torch-on waterproofing membranes.
PROFESSIONAL WATERPROOFING & WATER DAMAGE PREVENTION
Commercial & Strata Waterproofing in the Lower Mainland
Professional waterproofing services for residential, commercial, and strata properties across Greater Vancouver. From foundation waterproofing to deck and balcony systems, we protect your property from water damage with proven materials and expert installation.
- Fully Licensed & Insured ($5M)
- WorkSafeBC Registered
- 10-Year Workmanship Warranty
- Protects Structures & Units Below
Our waterproofing services
From flat roof membranes to below-grade foundation protection, we cover every waterproofing need for residential, strata, and commercial properties across Greater Vancouver.
Roof Coating Systems
Seamless reflective coatings that enhance weather resistance, reduce solar heat gain by up to 85%, and extend roof performance without a full replacement.
Leak Detection & Repairs
Pinpoint the source of water infiltration before it becomes structural damage. We identify and address vulnerable areas, seams, flashings, penetrations, with permanent repairs.
Membrane Restoration
Restore aging roof systems and improve waterproofing performance without a full replacement. The most cost-effective way to extend lifespan on flat commercial and residential roofs.
Foundation Waterproofing
Below-grade protection for residential and commercial foundations positive side, negative side, and blind side applications. Essential for any basement or below-ground structure.
Commercial Waterproofing
Parkade slab waterproofing, traffic membranes, mechanical room coatings, and commercial flat roof membrane installation. Trusted by property managers and building owners across the Lower Mainland.
Benefits of Professional Waterproofing
Addressing waterproofing vulnerabilities early is always cheaper than reactive repair. Here's what professional waterproofing protects.
Prevent costly damage
Stop water before it reaches your insulation, decking, or structural framing — preventing repair costs that can be 10-20x the waterproofing investment.
Extend roof lifespan
Moisture is the primary cause of premature roof and structural deterioration. Waterproofing membranes protect materials from degradation.
Reduce maintenance
Addressing vulnerabilities early means fewer emergency repairs, fewer leak calls, and fewer contractor visits. Protection is always cheaper than repair.
Protect property's value
A waterproof building maintains its structural integrity and market value. Evidence of water intrusion is one of the most common reasons property value diminishes.
OUR PROCESS
Keep Water Out. Protect What Matters Most.
Water damage is one of the costliest issues building owners and property managers face, and by the time a leak is visible, water has usually been working through the structure for weeks. Here's how we stop it.
1
Site Assessment & Moisture Investigation
We inspect the building and trace water intrusion to its actual source, not just where it shows up, identifying every vulnerable point across roofs, decks, foundations, and below-grade areas.
2
Detailed Scope & Quote
You receive a written quote with a clear scope of work and cost breakdown, documenting the systems we'll use and the areas we'll address, ready for council, ownership, or budget approval.
3
Surface Preparation
We properly prepare every surface, cleaning, repairing, and priming, so that waterproofing system bonds correctly and performs for the long term.
4
Membrane & System Installation
Our crews install the right system for each application, flat-roof membranes, traffic-deck coatings, or below-grade waterproofing, to manufacturer spec and building code.
5
Testing & Verification
We verify the installation holds water out before sign-off, so you're not discovering problems after the crew leaves.
6
Project Handover & Documentation
We walk the completed work with you, hand over documentation for your records, and back the project with our workmanship warranty.
What's the Difference Between Damp Proofing and Waterproofing?
DAMP PROOFING
Basic Moisture Resistance
A basic moisture-resistant coating applied to foundation walls. It slows moisture vapour transmission but is NOT designed to resist hydrostatic pressure water pushing against a surface under force.
Typically used in low-risk applications where the water table is well below the foundation. In Greater Vancouver's climate, damp proofing alone is rarely sufficient.
WATERPROOFING
Full Membrane System
A full membrane system that resists liquid water under pressure. This is the correct specification for any below-grade structure in Vancouver — where groundwater and sustained rainfall create genuine hydrostatic pressure conditions.
Our team assesses your property's specific conditions — soil type, water table, drainage, and building use — and recommends the right specification, not just the minimum.
Why building owners & property managers across the Lower Mainland choose PCC Roofing
15+ years of trusted waterproofing and roofing across the Lower Mainland. Detailed quotes, fully covered crews, and a 10-year workmanship warranty on every project.
Free On-Site Estimate
Our expert assesses your building, identifies vulnerable points, and provides a detailed quote with a full cost breakdown — so you know exactly what the project involves and what it costs.
15+ Year's Experience
Our crews have worked across the Lower Mainland for over 15 years — we know exactly where buildings leak and how to stop it.
24/7 Emergency Response
When water is getting into your building, every hour counts. We respond day or night to protect your structure, units, and tenants from costly damage.
10-Year Workmanship Warranty
Every waterproofing project is backed by our 10-year workmanship warranty. If something isn't right with our work, we come back and fix it.
WorkSafeBC Registered
Every crew member on your property is fully covered and working to WorkSafeBC standards, so liability never lands on you.
Flexible financing
Your property can't wait for the perfect time - and with financing through Financeit, doesn't have to. Spread the cost over manageable payments and protect your building today.
Residential, Strata or Commercial Waterproofing
Every property type has different waterproofing requirements. Select your situation below.
Strata & Multi-Family Waterproofing
Scalable waterproofing for condos, townhomes, and multi-unit buildings. We coordinate directly with strata councils and property managers.
- • Minimal resident disruption
- • Large-scale membrane installation
- • Council-ready written reports for AGMs
Commercial Waterproofing
High-performance waterproofing for offices, retail, warehouses, and industrial facilities — flat roof membranes, traffic coatings, parkade decks, and foundation protection.
- • Flat roof & deck waterproofing systems
- • Parkade & traffic membrane coatings
- • Long-term asset protection
Residential Waterproofing
Protecting homes from leaks, moisture intrusion, and structural damage. We handle residential flat roof membranes, foundation waterproofing, and balcony coatings.
- • Leak prevention & membrane protection
- • Foundation & below-grade protection
- • Extended building protection
What our clients Say
Daniel and his team did an excellent roofing job. The quote was reasonable, communication with Daniel was prompt and clear throughout the process. Most importantly, the work was completed efficiently and on schedule. We are very happy with the quality and professionalism. We totally recommend their services.
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IRIS LEST
2 months ago
Akiko and crew have been excellent to work with! Being in the restoration trade, we often need roofers to help subcontract out with only moments notice to inspect a variety of issues, and I'm so glad we came across Pacific Coast. Inspections are scheduled very quickly, technicians are thorough, and the reporting is detailed and well put together.
S L
SCOTT LARSEN
2 months ago
I had a leak in my roof due to a vent screw. I sent their office pictures and got a quote right away. Promptness and solid quoted amount made me go with them. The technician who attended was Jaspreet. He was amazing, it started snowing right before he got there, so we expected a reschedule. He arrived on time and straight to work.
T D
Tika D
2 months ago
Dan was excellent. Call right away for a estimate and came the next day to give me a quote. He came quickly to do the work. Very cost effective. Great prices and he a perfectionist and want the work done properly. He went above and beyond what I expected. He did very little thing and then some for me. Highly recommend his company. Very professional and friendly.
L E
Lynn Elliott
2 months ago
Pacific Coast Roofing was great to deal with. Will be needing to reroof my house soon and I will definitely have them to do it. Thanks so much PCCR!
D B
Derek Blond
4 months ago
I'm impressed by the company's quick response on my emergency call and following up with great and efficient work, appreciate that!
J K
Jane Khin Wau
4 years ago
Best company and very reliable. Not only I use them for myself and also everyone I know that needs a good roofer or a general contractor. PCC is one stop shop that takes the worry away and all the employees there are super friendly and professional. Try them and you will see the amazing work they do. Thank you guys for all the help and for making me look good when I need you.
K
Kenora
3 years ago
Daniel help replace my roof. He was awesome. He was very informative and help me fix my chimney. He is very honest and did the job quickly and professionally. He kept me up to date with the progress of the project. Great work! Great people! Great value!
G D
Good Day
4 years ago
Professional, efficient, and great communication. Used them to replace a roof for a 5,000 square foot home including replacing some fascia boards, vents, and gutters. They treated the house like it was their own and went above and beyond in every way. I will use them again for our roof and any other project that we might need help with. Very happy with them.
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Roger Dervo
7 years ago
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Frequently asked questions
What's the difference between waterproofing and damp proofing?
Damp proofing is a basic moisture-resistant coating that slows vapour transmission but doesn't resist hydrostatic pressure. Waterproofing is a full membrane system designed to resist liquid water under pressure. In the Lower Mainland, full waterproofing is almost always the correct specification for below-grade and flat-roof applications.
How long does waterproofing last?
It depends on the system and application, but a properly installed waterproofing membrane typically lasts 20–30 years. We'll recommend the right system for your building's exposure and use, and back our work with a 10-year workmanship warranty.
When do I need waterproofing vs. just a roof replacement?
A roof replacement renews the roof surface; waterproofing protects vulnerable points where water enters — decks, balconies, parkades, foundations, and below-grade walls. Many buildings need both. We assess your building and tell you exactly what's required.
Do you waterproof foundations and basements as well as roofs?
Yes. We provide below-grade and foundation waterproofing — positive, negative, and blind-side applications — alongside flat roofs, decks, balconies, and parkade slabs.
How much does waterproofing cost in Vancouver?
Cost depends on the area, system, access, and building conditions, so the only accurate figure comes from an on-site assessment. After we assess your building, you'll receive a detailed, itemized quote you can budget around.
What types of waterproofing membranes do you install?
We install a full range of systems — torch-on (SBS), liquid-applied membranes, TPO, EPDM, traffic-deck coatings, and below-grade membranes — selected to suit each application and building.
Can you waterproof parkades and balconies?
Yes. Parkade slabs, podium decks, balconies, and walkways are core to what we do — using traffic-rated membranes and coatings that protect the structure and the units below.
How do I book a free waterproofing assessment?
Call us or complete the form on this page. We'll arrange a site visit, assess your building, and follow up with a detailed quote and written report — at no charge and no obligation.
Will waterproofing disrupt my building's operations or residents?
We schedule and phase the work around your building's use — keeping parking, access, and operations running with minimal disruption.
Do you provide reports for strata or insurance purposes?
Yes. We provide written assessment reports suitable for strata councils, AGMs, capital planning, and insurance documentation.