Premium Windows & Doors Built on
Vancouver Island.
Premium Windows & Doors Built on Vancouver Island.
Coastal-ready performance, predictable lead times, and local support that stays with you. Most custom orders are ready in about three weeks, confirmed on your quote.
Buy direct where we serve. In other areas, we connect you with an authorized Thermoproof partner. Either way, your windows are built by Thermoproof and supported by a local team.
Since 1977, we’ve built windows and doors on Vancouver Island. You can buy direct or through an authorized partner. Either way, your windows are built by Thermoproof and supported through a clear service process.
Coastal-focused products. Lead times confirmed on your quote. Support is available after installation.
3-Week Lead Time
Many custom orders: about three weeks (confirmed on your quote)
Some in-stock configurations may be available sooner, depending on size and finish
Transparent, All-Year Pricing
Transparent quotes with options matched to your home, exposure, and budget.
48 Years on Vancouver
Island
Local manufacturing you can visit. Accountability stays close to home.
Engineered for Coastal Climates
Built for salt air, heavy rain, and temperature swings.
Find the Right Information
If you’re a homeowner looking to replace or build new, you’re in the right place. If you’re working on a project, use the paths below to get specifications, planning details, and partner support.
Builders and Developers Scheduling, takeoffs, and project coordination
Architects Performance documentation, details, and approvals.
Dealers Supply, pricing, and support
Installers Partner options and supply planning
Two Ways to Buy
Thermoproof windows and doors can be ordered through our direct team or through trusted trade partners. Which option is best depends on your location and the type of project.
Direct: Quoted and coordinated by Thermoproof. Manufacturing is scheduled through our Cobble Hill facility. Installation is handled by Thermoproof or an authorized installer, depending on scope and location.
Authorized Partner: Quoted, installed, and invoiced through your dealer or installer, with Thermoproof manufacturing, specifications, and documentation behind the product.
Both paths lead to the same manufacturing standards and documentation. The difference is who manages quoting, installation, and service coordination.
Why Thermoproof
Local manufacturing allows tighter control over scheduling, specifications, and post-install support. Lead times and warranty terms are provided in writing with your quote.
PRODUCT (Built for the Coast)
- Custom vinyl window systems manufactured on Vancouver Island
- NAFS-rated configurations available by series (ratings vary by size and design)
- V-Weld chemically fused corners designed for long-term sealing integrity
- Multi-chamber uPVC frames specified for coastal moisture and temperature variation
- Glazing options by specification: dual, triple, or quad where required
RELIABILITY (No Surprises)
- Lead times confirmed on your quote before production begins
- Production scheduled locally in Cobble Hill, reducing freight-related variables
- Clear scope and handoff, whether the project is direct or partner managed
- Stock availability varies; some configurations may be available sooner
SUPPORT (Service that stays consistent)
- ThermoCare service pathway for post-install questions and follow-up
- Access to a local Vancouver Island team
- Warranty terms provided in writing with your quote
- Responsibilities clarified upfront for direct vs partner-installed projects
Why Thermoproof
Local manufacturing allows tighter control over scheduling, specifications, and post-install support. Lead times and warranty terms are provided in writing with your quote.
PRODUCT (Built for the Coast)
- Custom vinyl window systems manufactured on Vancouver Island
- NAFS-rated configurations available by series (ratings vary by size and design)
- V-Weld chemically fused corners designed for long-term sealing integrity
- Multi-chamber uPVC frames specified for coastal moisture and temperature variation
- Glazing options by specification: dual, triple, or quad where required
RELIABILITY (No Surprises)
- Lead times confirmed on your quote before production begins
- Production scheduled locally in Cobble Hill, reducing freight-related variables
- Clear scope and handoff, whether the project is direct or partner managed
- Stock availability varies; some configurations may be available sooner
SUPPORT (Service that stays consistent)
- ThermoCare service pathway for post-install questions and follow-up
- Access to a local Vancouver Island team
- Warranty terms provided in writing with your quote
- Responsibilities clarified upfront for direct vs partner-installed projects
Trusted by 10,000+ Neighbors in Victoria, Nanaimo & the Cowichan Valley.
Real feedback from homeowners who chose Thermoproof.
What Vancouver Island Homeowners say after Choosing Thermoproof
Window and Door Series
Choose a series based on exposure, performance requirements, and budget. If you are not sure, we will help you narrow it down.
Pacific Pro Series
Ideal For: Renovations, rental properties, and standard replacement projects.
Summary: A practical, coastal-ready vinyl window specified for everyday performance and long-term reliability.
Includes: Multi-chamber uPVC frame design, stainless hardware options, and glazing configurations by specification.
Horizon Series
Ideal For: Primary homes where finish options and performance targets both matter.
Summary: A step-up series designed for tighter performance requirements, with configuration options tailored to the home and exposure zone.
Includes: Enhanced hardware options, finish choices, and energy-performance documentation available on the product page.
Harbour Alloy Series
Ideal For: Coastal homes, exposed locations, and architectural projects requiring enhanced durability and finish stability.
Summary: A hybrid window system combining an aluminum exterior with a uPVC interior, specified for demanding environments and projects where long-term durability and design intent are critical.
Includes: Aluminum-clad exterior for durability and color stability, insulated uPVC interior frame, and glazing configurations specified by project requirements.
Fjord Series
Ideal For: High-exposure homes and projects with advanced performance targets.
Summary: A premium series specified for demanding conditions and higher performance requirements, including improved sealing and hardware architecture by design.
Includes: Multi-point locking options and system details documented by series on the product page.
Matching Door Systems
Door systems can be specified to match your window package for consistent profiles, sightlines, and finishes.
Sliding Patio Doors
The Smart Glide & Victorian Series: sliding doors with security hardware options. Available in standard and custom sizes. Multi-panel configurations available, including OXXO where applicable.
Panoramic Folding Walls (FSDC)
FSDC aluminum folding wall systems: for wide openings and indoor-outdoor transitions. Options vary by opening size, configuration, and project requirements.
Entry Doors (Codel & Novatech)
Fiberglass entry door systems: specified for wet coastal conditions. Options available by style, performance requirements, and finish.
Built for Coastal BC
uPVC multi-chamber frame design specified for coastal moisture and temperature variation
Corrosion-resistant hardware options suited for salt-air environments
Low-E and insulated glass options selected based on performance targets and exposure
Sealing architecture designed for wind-driven rain performance (ratings vary by series)
Performance varies by series. Ratings and documentation are provided on the product pages and with your quote.
How It Works
Two paths, same standards. Homeowners and trade partners follow a clear process from quote to delivery.
Homeowner Track
- Share your location and project details
- We confirm series options, measurement approach, and scope for an accurate quote
- Your order is scheduled for production at our Cobble Hill facility
- Delivery and installation are coordinated based on your location and project type
- ThermoCare support remains available after installation
Trade Track
- Request trade pricing, specifications, and onboarding details
- Align on scope, timelines, and product selections
- We coordinate production scheduling and delivery planning
- Installation is completed by your team or your chosen installer, with Thermoproof manufacturing behind the product
- Ongoing partner support for documentation and repeat work
Note: Timelines and steps vary by series, scope, and installation method. Details are confirmed on your quote.
Common Questions
Short answers to the questions we’re most often asked before a quote.
Timelines are confirmed before production begins. Because manufacturing is based in Cobble Hill, scheduling is controlled locally. Typical ranges vary by series and configuration and are documented on your quote.
Yes. Factory visits can be arranged by appointment. If you’d like to see materials, construction methods, and how windows are built, we’re happy to walk you through the process.
Warranty coverage varies by component. Materials are covered for as long as you own the home, with certain parts covered for defined periods. Labor coverage and full terms are provided with your quote.
Request a Quote With Confirmed Timelines
We’ll help you select the appropriate window and door series based on your home, exposure, and performance requirements. You’ll receive clear options, a written timeline, and documented warranty terms.
For Builders, Architects, and Trade Partners
We work with professionals across Vancouver Island on specification driven, schedule sensitive projects.
Insights
Practical notes on installation planning, coastal performance, and window and door specifications.
ThermoProof Insta Feed