Get to Know the Three Types of Pet Doors for Sliding Doors

View of a glass sliding door with a pet door panel inserted, with outdoor grass and part of the house exterior.

Pet Doors you Insert Into a Sliding Door Track

You can choose between glass or plexiglass, and between a simple flap or a “smart” panel that covers the pet passageway.

Strengths

  • Most affordable option for sliders

  • Takes about an hour and a drill to install

  • Lots of models to choose from

Weaknesses

  • Large and old dogs may find it difficult to pass through

  • Not very weatherproof and difficult to secure

  • Always open unless you manually cover

Read our detailed analysis of inserts, complete with available products and pricing.

A glass sliding door with a smart pet door in the track and white frame leading to a backyard with green trees and a fence.

Robotic Arms That Open Your Sliding Door Automatically for Your Pet

The smart pet doors in this little-known category offer remote control and automation, with several good options to choose from.

Strengths

  • Highly secure and weatherproof

  • Gives complete control over opening and closing

  • Installation can be as quick as a few minutes

Weaknesses

  • Generally more expensive than inserts

  • Some require a drill and ladder to install

  • With technology comes additional set-up

Read our detailed analysis of the available openers, including pricing.

Golden retriever dog walking through a pet door built into a sliding patio door in a residential backyard with a house, trees, and garden in the background.

Pet Doors you Build Into a Sliding Door Glass Panel

With a custom built solution or custom installation, you choose the style, size and location, and the professionals do the rest.

Strengths

  • Good-to-great security and weather resistance

  • Smart pet door options are available

  • Considered “high-end”, may add value to your home

Weaknesses

  • Can cost the same as openers, or much more

  • Professional installation is required

  • Expensive to remove if ever necessary

Read our analysis of the custom through-glass options available.