Eillion Medium Dog Door for Door, Doggy Door with Aluminum Frame, 3 Flaps, Metal Closing Panel and Lock, Pet Doggie Door for Interior and Exterior Doors

I installed the Eillion Large Dog Door on my exterior door last month, and so far it’s been excellent in every way. Built with a solid aluminum frame (no flimsy plastic here!), this door feels rock-solid and built for the long haul. ✅ What impressed me: Top-notch insulation: The triple-flap design with a center thermal layer and magnetic seals keeps out drafts, wind, and heat even in extreme weather. Energy efficiency is noticeably better than my old door. I live in Oklahoma and we are in the midst of the hot Oklahoma summer - this door is much more efficient than previous ones. Sturdy for multiple dogs: I have 3 dogs and they will run out this door at full speed (cuz squirrels are trying to take over our yard!) - the frame doesn't flex or wobble—even after the constant in and out use of my energetic dogs. Easy DIY install: Was able to install in under an house. Extra security: The metal closing panel with lock gives peace of mind when we’re out—excellent for safety and convenience. Installation doesn’t include external sealant or flashing, so I added my own weatherproofing to get the perfect tight seal. Final Verdict: If you’re looking for a big-pet-capable, weather-resistant, energy-efficient dog door—this is it. The metal build, insulated flap system, and sturdy lock make it go well beyond cheaper plastic alternatives. Worth every penny and exactly as solid and practical as advertised. Highly recommend to any pet owner who wants a reliable, high-quality solution for indoor-outdoor access.

This is very well built and quality materials. I was well pleased with the price and build quality. Highly recommended

I recently installed the Eillion Medium Dog Door with the aluminum frame, and overall I’m very happy with it. The installation was straightforward — the instructions were clear and the pieces fit together without much trouble, so I had it mounted in under an hour. I especially appreciate the three-flap design: it seems to do a better job keeping out wind and rain than single- or double-flap doors. My dog moves through it easily, and the flaps close well after she passes. One thing to note is that there was a large gap around the frame when I first installed it, so I added extra weatherstripping to seal it. After that fix, the door kept the cold and drafts out much better. I’d recommend this product to anyone who wants an effective, easy-to-install dog door and is willing to add a little extra weatherproofing if needed.

This is one of the best insulated metal dog doors available — and I’ve tried several. The all-metal construction is solid, heavy-duty, and clearly built to withstand years of daily use. No flex, no rattling, just a rock-solid frame that holds up even with large, active dogs. The three-flap design is the real highlight. The center thermal flap provides excellent insulation, keeping out cold drafts and extreme heat. It’s ideal for year-round use and noticeably reduces energy loss. The magnetic closures work great, snapping back into place cleanly after every pass-through. Install was quick and smooth — under an hour with basic tools. Everything lined up cleanly and the instructions were easy to follow. Small heads-up: while the build is excellent, it didn’t include external weatherproofing sealant or flashing, so I had to purchase that separately to ensure a perfect weather-tight fit. Not a dealbreaker, just something to plan for. Also, if your dog’s a chewer, I highly recommend spraying the flaps with a safe anti-bite spray to prevent wear — especially during teething. Overall, this is a top-tier thermal dog door with metal construction, energy-efficient flaps, easy DIY install, and long-term durability. Worth every penny.

100% highest quality. Cost compared to others mid-range. My install took about two hours. Need two people.