Important Forms:
Placement Guide
In the Glass Order Form

  • Preserves your existing sliding door frame, lock, and alarm setup for seamless integration.
  • Maintains energy efficiency with tempered, dual-pane, argon gas-filled glass.
  • Delivers proven Endura Flap performance pre-installed within the insulated unit.
  • Custom-built glass panel available in white or beige frame finishes.
  • Additional 2 inch or 4 inch step-over options support pet comfort across sizes.
  • Built to order in Washington State with an estimated 5 week production timeline.
  • Available only within the lower 48 United States. 

 

Pet Door Guys In The Glass Pet Door

Architectural In-Glass Pet Access

87 Reviews
Made in the USA USA flag icon
Regular price $1,439.99

Fast & Free Shipping in the USA.

Custom Built for Your Home - Not Eligible for Return

10 Year Warranty

Color: White
Flap Size
Special Product Option


Custom dual-pane glass replacement with factory-installed Endura Flap that preserves your original sliding door frame, lock, and alarm system while delivering insulated, argon-filled performance and a clean built-in finish.

Important Forms:
Placement Guide
In the Glass Order Form

  • Preserves your existing sliding door frame, lock, and alarm setup for seamless integration.
  • Maintains energy efficiency with tempered, dual-pane, argon gas-filled glass.
  • Delivers proven Endura Flap performance pre-installed within the insulated unit.
  • Custom-built glass panel available in white or beige frame finishes.
  • Additional 2 inch or 4 inch step-over options support pet comfort across sizes.
  • Built to order in Washington State with an estimated 5 week production timeline.
  • Available only within the lower 48 United States. 

 

Installation & Fit

  • Replaces one full panel of an existing dual-pane sliding glass door.
  • Fits within your original patio door frame while maintaining the existing lock and alarm configuration.
  • Mounts as a complete insulated glass unit installed by a professional glazier.
  • Requires professional measurement of the net glass size rather than the visible glass opening.
  • Sits 3 3/4 inches above the interior floor with optional 2 inch or 4 inch additional step-over heights available.
  • Not recommended for doors with unusually tall base rails that would create excessive total step-over height.
  • Available in standard or oversized glass dimensions up to 34 inches wide by 92 inches tall.

Best Suited For

Ideal for:

  • Homeowners wanting full use of their sliding glass doors.
  • Properties where maintaining the original door hardware and security system matters.
  • Households seeking an integrated look that preserves sightlines and natural light.
  • Long-term installations where custom glass fabrication supports better aesthetic alignment
  • Sliding glass doors with standard base height where the built-in step-over remains manageable.

    Not ideal for:
  • DIY projects or situations without access to a professional glass installer.
  • Doors with very tall bottom rails that would result in an excessive combined step-over height.
  • Therma-Tru brand sliding glass doors which require a specialized glazier for installation. Make sure you do not have a Therma-Tru door before purchasing. 
  • Modern French Doors - We recommend Utah Pet Access French Door insert
  • Small windows or glass areas - We recommend Hale Through the Glass instead

Questions

What's in the box?

  • In the Glass Unit

How does the purchasing process work?

Contact a glazier from a local glass shop to measure and install your unit

Measure your pet to get an accurate flap size. The In the Glass unit comes with a 3-3/4" step-over in addition to any step-over your frame has right now, which you will need to take into account.

Check out our Placement Guide, which will show you where the pet door should be installed based on your sliding glass situation. Choose your glass size from the menu: Standard (up to 34" wide x 76" tall) or Oversize (up to 34" wide x 92" tall)

Place the order on this page to receive the order form asking for your custom dimensions. Your order is on hold until we receive this order form. The form is emailed directly to you as you complete your order.

The custom-built glass will be made and shipped with your pre-installed pet door for your sliding glass door. Once your door arrives, schedule the same glazier who took your measurements to install it. The glazier will remove the old glass and insert the new pet door unit into your sliding door frame.

Tip: Keep your original glass panel for future use. Store it in the box your new pet door arrived in.

Is this a full sliding glass door with a dog door built in?

No, this is not a full sliding glass door assembly.

This product replaces one glass panel within your existing sliding glass door. It includes a custom vinyl framed insulated glass unit with a built-in pet door, but it does not include the track, rollers, or full sliding door system.

Your original door frame, lock, and hardware remain in place. A professional glazier removes the existing glass panel and installs the new pet door glass unit into your current frame.

Can I get this sliding door with built-in dog door shipped to my house instead of the glass company?

If you get the standard sized doggy door for sliding glass doors, it can be shipped to a home. However, if you have an oversized unit, it is best to ship to your glass company.

Explore all questions
Product Details

Product Details


The Pet Door Guys In-The-Glass Pet Door is engineered to replace one insulated glass panel within your existing sliding glass door, French door, or sidelight. Rather than adding a framed insert, this solution maintains the original door frame and preserves the visual continuity of your home.

Each unit is constructed with tempered dual-pane glass filled with argon gas for insulation and includes a factory-installed Endura Flap. Optional Low-E or tinted glass selections allow the new unit to more closely match your existing door configuration.

Because this is a fully custom insulated glass unit, it is not a do-it-yourself project. A professional glazier must measure the net glass size and complete the installation. Installation materials are not included, as professional glass installers typically supply the appropriate glazing materials.

After checkout, an order confirmation email includes a Finish Your Order button where final glass measurements and configuration details must be submitted before production begins.

Production begins once the completed order form is approved, with an estimated build time of approximately 5 weeks plus transit from Washington State. Units are available in white or beige and ship within the lower 48 United States only.

Installation Guide

Installation Information

Installation Instructions

Installation icon Difficulty Professional
Installation icon Steps 3
Installation icon Time Required 1 hour

Parts

  • In the Glass Unit

Tools

  • Glass Replacement Tools (not included)

This installation is done by a professional glazier, and requires specific skills to remove and replace the glass in a sliding glass door.

Step 1 Remove the Sliding Glass Door

Remove the Sliding Glass Door
  • Remove your sliding glass door from the frame and lay it down flat.

Step 2 Remove the Old Glass

Remove the Old Glass
  • Remove the old glass.
  • Your glazier will prepare for the new piece of glass.

Step 3 Insert the New Glass

Insert the New Glass
  • Your glazier will place the new piece of glass in the door and put everything back together.
  • Reinstall the slider in your sliding glass door track.
Videos

Videos

In the Glass Endura Flap Pet Door





FAQs

FAQ

Reviews

Customer Reviews

Request Freight Quote

Track heights exceeding 106 inches (107" or higher) may require additional shipping charges. Please provide your contact information for a custom freight quote, and our team will follow up during normal business hours.