Defender 76LS
The Defender 76LS is recommended for smaller openings (less than 15′ wide).
Premium Lift and Slide Doors
Our Lift + Slide Doors glide open with a light touch, thanks to precision-engineered hardware and a secure lifting mechanism. Built with our exclusive Hybrid Framing System—featuring steel-reinforced uPVC and fusion-welded corners—they offer the strength to span extra-large openings. Advanced compression gaskets provide superior air and water sealing, delivering unmatched energy efficiency and weather protection.
Passive House
Net Zero
LEED
Built Green
Made in Canada
35-Year WarrantyPremium Lift and Slide Doors
Our Lift + Slide Doors glide open with a light touch, thanks to precision-engineered hardware and a secure lifting mechanism. Built with our exclusive Hybrid Framing System—featuring steel-reinforced uPVC and fusion-welded corners—they offer the strength to span extra-large openings. Advanced compression gaskets provide superior air and water sealing, delivering unmatched energy efficiency and weather protection.
Passive HouseNet ZeroLEEDBuilt GreenMade in Canada35-Year WarrantyTry:
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Lift + Slide vs Traditional Sliding Door
Besides performance, security, and design, the most immediate difference when using the lift + slide is how effortless the door moves even with extra large openings. You push and it glides continuously.
Feature
Lift + Slide
Traditional
Operation
Simple handle turn lifts door off track for effortless sliding of extra-large panels.
Slides on track with friction, requiring more force and causing wear.
Operation
Lift + Slide
Simple handle turn lifts door off track for effortless sliding of extra-large panels.
Traditional
Slides on track with friction, requiring more force and causing wear.
Security
Multi-point locking with steel-reinforced uPVC and fusion welded corners.
Basic latch mechanism with limited security points.
Security
Lift + Slide
Multi-point locking with steel-reinforced uPVC and fusion welded corners.
Traditional
Basic latch mechanism with limited security points.
Sealing
Compression seals engage when door is lowered — airtight and weatherproof.
Moderate seal — more prone to air and water infiltration.
Sealing
Lift + Slide
Compression seals engage when door is lowered — airtight and weatherproof.
Traditional
Moderate seal — more prone to air and water infiltration.
Durability
Fusion welded corners and steel reinforcement ensure decades of smooth operation.
Rollers and tracks wear down more quickly with mechanical joints degrading over time.
Durability
Lift + Slide
Fusion welded corners and steel reinforcement ensure decades of smooth operation.
Traditional
Rollers and tracks wear down more quickly with mechanical joints degrading over time.
Design
Flush-mount sill creates continuous indoor-outdoor surface.
Higher sill profiles create barriers and limit accessibility.
Design
Lift + Slide
Flush-mount sill creates continuous indoor-outdoor surface.
Traditional
Higher sill profiles create barriers and limit accessibility.
Our Two Models
Defender 88LS
The Defender 88LS is recommended for larger openings (up to 21′ wide).
Configurations
Both models are available with two, three or four panels in a variety of interior and exterior finish options.
Lift + Slide Door Performance Metrics
Our lift and slides undergo rigorous testing in our lab that mirrors NFRS's testing facility. Compare our numbers against others and ask our WindowsGPT about what these specifications mean.
| Performance Metric | Defender 76LS | Defender 88LS | ||
|---|---|---|---|---|
| Air Tightness | 0.05 CFM/FT² | 0.01 CFM/FT² | ||
| Water Tightness | 10.7 PSF | 10.5 PSF | ||
| Structural – Wind Load Resistance | 35 PSF | 60 PSF | ||
| NAFS Performance Class & Grade | LC-PG35 & CW-PG30 | LC-PG60 & CW-PG50 | ||
| Double | Triple | Double | Triple | |
| U-Factor IP | 0.23-0.27 | 0.18 | 0.23-0.27 | 0.17-0.18 |
| U-Value SI | 1.30-1.53 | 1.02 | 1.30-1.53 | 0.96-1.02 |
| SHGC | 0.18-0.40 | 0.16-0.35 | 0.18-0.41 | 0.16-0.35 |
NAFS performance data is based on the following tested sizes: Defender 76LS – Single Operable – 180" wide x 102" high; Defender 88LS – Single Operable – 120" wide x 98" high. Additional NAFS and NFRC values are available for different glass combinations, options and tested sizes. For additional performance values, visit our website or contact your Product Representative.
Service Areas
We Service Over 60 Locations Across Ontario
Our certified consultants are ready to help you find the perfect windows and doors for your home. Get expert advice and professional installation in your area.
Map showing Haven Haus Windows service areas across Southern Ontario. We serve Toronto, Mississauga, Oakville, Burlington, Hamilton, Guelph, Kitchener-Waterloo, Cambridge, London, and all surrounding regions within a 200km radius of Toronto.
Service Areas
We Service Over 60 Locations Across Ontario
Our certified consultants are ready to help you find the perfect windows and doors for your home. Get expert advice and professional installation in your area.
Map showing Haven Haus Windows service areas across Southern Ontario. We serve Toronto, Mississauga, Oakville, Burlington, Hamilton, Guelph, Kitchener-Waterloo, Cambridge, London, and all surrounding regions within a 200km radius of Toronto.
60+ Locations