Exterior
Reimagined.
Complete exterior transformations — from siding replacement to full envelope renewal. Design, supply, and installation under one contractor. Gentek-certified window and door installation.
#200
Gentek Premium Renovators
30+
Years Full Renovation
6
Service Locations
$10M
Liability Coverage
Renovation Scope
Siding Replacement
Full re-cladding in fibre cement, engineered wood, vinyl, cedar, or metal. Includes building envelope assessment, moisture barrier, and exterior insulation where required.
Windows & Doors
Gentek-certified installation — one of only 200 premium renovators in Canada. LePage Quad Max seal method. Properly flashed and sealed openings are the most critical factor in envelope longevity.
Soffits & Fascia
Aluminum, Longboard extruded aluminum, cedar, fibre cement, and composite soffit systems. Proper ventilation and pest exclusion built into every installation.
Sundecks
Vinyl, cedar, and composite decking in the Okanagan and Shuswap. Fastener selection, surface preparation, and drainage design that reduce maintenance for the life of the deck.
Railings
Aluminum, glass, wood, and cable railing systems — designed to complement the exterior cladding and meet local code requirements.
Design Visualization
Before any commitment, we photograph your property and produce computer renderings showing the finished result in your chosen materials and colours. Emailed to you with revision rounds included.



Most exterior renovation failures trace back to poor detailing at window and door openings — the most common cause of building envelope failure. Streamline Exteriors is one of only 200 Gentek-certified premium renovators in Canada, and our team is certified for the LePage Quad Max seal installation method, the industry benchmark for weathertight openings.
Every renovation project can include our digital design service: we photograph your home, render it with your chosen finishes, and email you the result before any commitment is made. Sundecks, railings, roofing, soffits, and fascia are all within scope.
Every Renovation Includes
- Gentek Certified Premium Renovator — one of 200 in Canada
- LePage Quad Max Seal certified window and door installation
- Computer-rendered visualization before project start
- Siding, windows, doors, soffits, fascia, sundecks, railings
- Full building envelope assessment on every project
See your exterior reimagined — free
Computer-rendered visualization included · Gentek certified · One of 200 in Canada
What is a Gentek-certified premium renovator?
Gentek is the parent company of window and door systems including Ply Gem, Vytec, and associated brands. The Gentek Premium Renovator certification is granted to fewer than 200 contractors across Canada and governs the installation methodology — specifically the LePage Quad Max seal technique for window and door openings. It is the industry benchmark for weathertight installations.
Can I see what my exterior renovation will look like before you start?
Yes. We photograph your property and produce computer-rendered visualizations showing the completed exterior in your selected materials, profiles, and colours. The renders are emailed to you with revision rounds included — and there is no obligation. This service is included in our renovation process at no charge.
What does a full exterior renovation include?
Scope varies by project but typically includes siding replacement, window and door installation, soffit and fascia, gutters and downspouts, and wherever relevant, sundecks and railings. We always begin with a building envelope assessment to identify hidden moisture damage or failed flashing before specifying the full scope.
How do you handle window and door installation?
Window and door openings are the most common cause of building envelope failure. Our window installation follows the LePage Quad Max seal method and Gentek-certified approach — ensuring every opening is fully flashed, sealed, and backed by our certification. We do not subcontract window installation.
Residential
Premium siding, seamless gutters, windows, and doors for homeowners across BC and Alberta. Journeyman-led installations, product-specified for western Canadian climate conditions.
Gutters
Continuous seamless gutter systems, Alu-Rex hangers, and GutterGlove leaf protection — including heated ice-dam prevention for mountain climates. Over one million linear feet installed since 1994.
See It Before
You Build It.
We photograph your property and render the finished result before any commitment. No obligation — just clarity.
Or call directly
(250) 832-0610