Get the Ultimate in Security and Convenience with our patent pending PatioLockTM dog door for sliding door system which can lock your glass door without screwing, drilling or cutting! You can also use your screen door without any cutting or handy skills if you also buy our patented Adjustable Screen Door Adapter.

Our PatioLockTM pet door is the ONLY pet door in the world that has its own locks! This means you can lock your glass door with:

• NO screwing!
• NO cutting!
• NO Drilling!
• NO Handy skills!
• Fully adjustable so multiple use for if/when you move home!
• Fast installation
• No handyman costs!
• Fast removal
• Great for both renters and home owners
• No damage to frame or paintwork removing/transferring lock mechanisms
• No need for extra hard ware, brackets, rods and other contraptions/gimmicks

What Patent Pending products do we have that separates us from the rest?

1. PatioLockTM kits  = Glass door locks with NO SCREWING OR DRILLING!

2. Adjustable Screen Door Adapter = Use screen door + Max Security with NO CUTTING!

Please run through the order checklist on our homepage before you order to confirm your sliding door frame and lock compatibility (i.e., common standard sliding door heights and locks).

Watch the video below to see how the Screen Door Adapter & Locks work:

What should I buy?

Fortunately, the choice is pretty easy.

Most Popular & Convenient Choice: The PatioLockTM system which includes an adjustable screen door adapter and lock kit to suit your existing sliding door lock is the best way to go for most. It is cheaper overall; there are no additional handyman costs; it can be reused if/when you move; it has been designed to be installed by people who are NOT at all handy :); easy to install and remove (e.g., holidays, entertaining) and you won't leave screw holes everywhere. So great for renters and/or people who are not handy but want security!

For the Home Owner AND Handy-skilled / Tinkerer: If you are a home owner & handy skilled & have 3 hours spare & are not moving home & are happy to leave holes in the pet door and sliding door frame, then you could buy the Pet door with a screen door adapter and transfer locks onto the pet door system. This involves skills, tools, screwing etc.

Budget: If you just want a pet door for a laundry and/or are on a tight budget, then you could just buy the pet door on its own. There is a rod in the pet door box that can be cut and put in the floor track to crudely but effectively wedge the glass door against the pet door. 

What Size flaps are there?

There are 3 sizes to chose from: Medium, Large and Extra Large (small flaps have been discontinued). 

Click here for a link to flap sizes.

What colours can I choose from? 

• Primrose 
• Black
• White
• Silver-grey  

*XL is ONLY AVAILABLE in BLACK.

Can I lock the flap?

Yes, you can see the steel powder coated lock panel and lock system in the picture below. 

Shipping Costs: 

Please note a flat Australia-wide shipping fee is not possible for the pet doors because they are over 1.2m long and thus incur manual handling and over-size item fees in addition to the actual freight charges and domestic delivery surcharges and fuel levy surcharges, etc. Most couriers including Australia Post can not be used due to the over 1.2m issue.

So, in order to streamline checkout for most, there are a few common zones to choose from at checkout that cover most of the highly populated areas along the east coast and Perth metro.

If you live in more rural areas then please select the first option for $1. We will then email you an invoice based on our cost to your address depending on the courier used.

If you prefer, you can email before ordering for a freight quote.

Unfortunately, we have to use multiple couriers depending on location and warehouse origin so it is not possible to use an accurate freight calculator at checkout. The zone model is the best system we can come up with thus far to cover most of the populated areas.

CLICK below to BUY your own PatioLockTM Pet Door:

Some customer reviews:

Installed it myself!!! The hardest part was opening the box      

This product is amazing! Easy to install, fits perfectly and locks securely!! Even matches perfectly with the sliding door. Worth every cent!! Ordered one day...delivered the next. The pre sale service was fantastic to ensure I purchased the right product to fit the existing door lock and my two cavaliers love ❤️ it. Thank you. 

As advertised- secure adjustable no installation costs      

Very happy with product. Very adjustable so it fits perfectly. Good quality and fast delivery. Great service and product 

Very impressed with the quality of both the product and the customer service. Thank you. I have recommended this company to all my friends. PATIOLOCK SECURITY PET DOOR  

So easy to fit, so convenient for our pets and superfast delivery- the turnaround time was less than 48 hours. Julian was extremely helpful, and we were able to fit the door so quickly (and we dont have a "handyman" bone in our bodies!!) If we can do it, anyone can. Thank you so much Julian and everyone at MODERN PET DOORS. Cheers Sue and Mark F

What payment options are there? 

Help us contribute to our beloved pets and children:

If social justice and sharing is also valued by you, part of every sale goes towards helping support helpful services to the community including: 

- Guide Dogs for the Vision Impaired. We currently sponsor 'Buddy' and 'Olive' in their training program.

- Guide Dogs for children with Austism Spectrum Challenges 

- Animal rescue centres 

- Salvation Army

Our dog doors for sliding doors will seamlessly fit into your sliding glass door frame for a nice modern look. Luckily pets also find our pet door inserts easy to use..have a look at the vid below... 

Check our Daisy & friends using their new pet door!  

Watch the clip below to see how the PatioLockTM system works and why it saves you a lot of hassles -  it goes for 9 minutes but it is very informative :) 

To get your own PatioLockTM Pet Door click below or on the item at the top of this page: