If you’re tired of playing doorman for your dog, or worrying about leaving a door open, you’re not alone. More Auckland homeowners are choosing dog doors installations because they’re safe, stylish, and built to suit the Kiwi lifestyle.
No matter the size of your dog, this guide covers everything you need to know before installing a dog door in your glass sliding door, ranch slider, or full-height window.
Why Install a Dog Door in Glass?
Dog doors in glass are becoming the preferred choice for modern homes because they offer:
🐾 Better security
No more leaving open a door.
🐾 Total convenience
Your dog can come and go without disturbing your day.
🐾 Warmth and energy efficiency
Professional installation ensures proper sealing, so no unwanted draughts.
🐾 A clean, modern look
A dog door that is professionally installed, blends seamlessly into your home’s design.
Safety First: The Type of Glass You Need
This is the most important part of installing a dog door in glass. You cannot cut a dog door into existing standard glass. To ensure full safety compliance and prevent injuries, the pane must be replaced with toughened safety glass, cut to size with a precise circular opening.
This means:
- Your existing glass panel is removed
- A new custom safety panel is made
- The dog door is installed into the new panel
- The panel is refitted safely and securely
Why toughened glass matters
- Up to 5x stronger than standard glass
- Breaks into dull, granular pieces, not sharp shards
- Meets New Zealand glass safety standards (NZS 4223)
Choosing the Right Size Dog Door
Dogs come in all shapes and sizes, so dog doors do too. Here’s a guide to help you choose the right size:
Pro tip: The opening should be shoulder height for your dog. If in doubt, choose the slightly larger size.
Styles of Dog Doors for Glass
Dog doors for glass are designed specifically to fit a circular cut-out in a toughened panel. Here are common styles available in New Zealand:
🐾 Standard Manual Flap Dog Door
- Most affordable
- Lockable panel
- Suitable for most home layouts
🐾 Two-way / Four-way Locking Dog Doors
Allows:
- In only
- Out only
- Fully locked
- Free movement
Great for managing your dog’s movement at night. Weatherproof and wind-resistant options
Designed for:
- Windy Auckland weather
- Homes on exposed or coastal streets
Look for double-flap or magnet-sealed designs.
Best Types of Glass Panels for Dog Doors
To install a dog door, these panel types work best:
✔ Sliding doors (ranch sliders). The most popular option.
✔ Fixed full-height window panels. Often next to ranch sliders.
✔ Laundry doors with full-glass panels. Great for dogs who use the side or back entrance.
Not suitable for:
- Wooden doors without glass
- Double-glazed panels (without replacing the full unit)
We can customise and replace almost any panel with a dog-door-ready glass panel.
What to Consider Before Installing
Here are key things homeowners often overlook:
🐾 Your dog’s behaviour
- Does your dog run at full speed?
- Is your dog anxious about flaps?
🐾 Weather exposure
A coastal or windy home may need:
- Stronger magnet closures
- Double-flap weather seals
🐾 Placement inside the home
Make sure:
- Your dog has a clear run-up
- The placement doesn’t block kitchen, hallway, or furniture paths
🐾 Security
Some dog doors include:
- Locking covers
- Multi-point locking systems
- Secure close mechanisms
The Installation Process
Here’s what to expect with a professional glazier:
Step 1: Measurement & quote
A technician measures your current panel and confirms the right door size.
Step 2: Custom glass fabrication
A new safety glass panel is manufactured according to NZ standards.
Step 3: Installation
Your old glass is removed and the new one is fitted with your chosen dog door.
Step 4: Final adjustments
Flap tension, lock testing, and weather sealing are completed.
FAQs About Dog Doors in Glass
A custom glass dog door gives your pet independence while keeping your home warm, secure, and stylish.
Contact Glen Innes Glass today for a quote or measurement. Let your dog enjoy the freedom they deserve, without compromising the look of your home.
