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Dog Door installation in Longmont

Window Dog Door Longmont

A window pet door is a quick and easy way to give your pet access without having to install a dog door or cat door in your doors or walls. Glass Pet Doors commonly installs our Longmont pet door for window in basement windows, picture windows, single pane windows, double pane windows, plus more. Contact us for a free quote or to learn more about window pet door installation.

Free Quote Custom Dog Doors

Request a Free Window Dog Door Quote

We have a wide range of quality window dog door products that both you and your pet will love. You can choose doors with varying costs, styles, advantages, and warranties. Our pet door experts will give you a free and instant quote for any product to install your pet door with the click of a button.

Quote! Our Process Testimonials

Get your Instant Quote Today in Longmont!

We have a wide range of quality window dog door products that both you and your pet will love. You can choose doors with varying costs, styles, advantages, and warranties. Our pet door experts will give you a free and instant quote for any product to install your pet door with the click of a button.

Quote! Our Process Testimonials

Dog door for windows in Longmont with Glass Pet Doors

Small, Medium, Large and Extra Large Dog Doors

Sometimes in glass or solid pet door and installation doesn't fit your home or pet's needs. In many cases, a Longmont window dog door may be the right location for your dog door or cat door. Glass Pet Doors offers free evaluations for people who are uncertain where to place a pet door or what kind of pet door would work best. Our trained consultants will review all the possible options and evaluate any special needs your pet may have and provide a free window pet door installation cost estimate.

PlexidorPlexidor

The best Longmont dog door on the market. They can be easily installed into any door material, and come with a lock and steel security plate for maximum security. With a 10 year warranty and a 90 day money back guarantee, Plexidor dog doors are a high quality and assured to please.

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Endura FlapEndura Flap

If you're looking for something cheaper than Plexidor dog door but still good quality, Endura Flap pet doors are a perfect option. With dual paneled flaps, a magnetic seal, and a secure locking cover, these doors are weather resistant and secure for your peace of mind. Along with a 15 year warranty and 90 day money back guarantee make this Longmont pet door a great option.

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Hale Pet DoorHale Pet Door

Quality, energy efficiency, safety, and security are priorities with Hale Pet Door. All of our door dog doors are rated highest in insulating and sealing, ensuring protection against wind, dust and insects. All Hale Pet Door branded products are manufactured in the United States with the greatest attention to detail.

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What Our Customers Say

  • Dana Troy
    Got a pet door for my vinyl sliding glass door, it's a game-changer. Pricier than an insert, but way more convenient and totally worth it. Took my dog a couple weeks to get fully comfortable with it (she's a scaredy cat and hadn't used a dog door before), but now she's freely going in and out on her own without letting the hot/cold air or bugs into the house. I opted for the Endura flap, partly because of the lifetime warrantee, and I can see why, it's clearly built to last. Joe did the install, he was friendly, professional, and super helpful. Overall awesome experience, if I'm ever in the market for another pet door I'm definitely going with them again!
  • Kristy Lee
    We had a great experience! The communication was great and the installation was super fast! We are very happy with our new pet door and highly recommend to anyone who needs glass services!
  • Morgen Vanesselstine
    Joe is seriously the best! He was so incredibly friendly. He covered everything he was doing with each step. He also literally left everything better than he found it. Usually with contractors in the past I have to spend some time cleaning up after they leave. Joe cleaned up everything. Also, was really great with the doggos. Thanks again for everything, Joe!
  • Laura Dunnigan
    Excellent. It’s such a relief not to clean up after my 3 dogs. Professional and perfect. I highly recommend this one!!!
  • Jamie Hedlun
    I would like to give this company five out of five stars because their communication is excellent, they worked with our schedule, the price was fair, and the quality is impeccable. We had no issues from start to finish, and we would definitely work with them again!
  • Joel Lewis
    I just received a pet door at my house. I am gone long hours and needed my dog to have a way to go outside. This door solved all the problems, plus I am able to open my sliding glass door all the way. The door took about 5-6 week to specially make and my installer Joe was in contact with me the whole time. When he installed the door he gave me the very best in service and the sliding glass door is amazing. The doors are not cheap but well worth the money and comes with 10 year warranty on the glass and lifetime on the dog door. I would recommend Best in glass pet doors to anyone!
  • Alexandra Hawk
    Absolutely awesome people to work with. Trevor and Brad are both really on top of it. They were punctual, easy to work with, and professional. I was actually really amazed at how fast the installation was. I would definitely recommend them to anyone.