10 Best Cat Doors 2025 in the United States

The PetSafe Doggy Door for Sliding Glass Doors is an excellent choice for cat and small dog owners, especially those living in apartments or rental homes. It fits pets up to 15 pounds, with a flap sized to comfortably allow small pets through without stress or injury. Its no-cut, DIY installation is a big plus if you want to avoid tools or permanent modifications, making it ideal for renters. The adjustable height feature helps it fit a variety of sliding door sizes, adding to its flexibility. Made with a sturdy aluminum frame, it includes weather stripping and a slide-in closing panel, which provide solid weather protection to help keep drafts and rain out. The flap is flexible and tinted with magnets to help it close quietly, reducing noise when your pet uses it.

Security is well covered with a latch kit that locks the sliding door, ensuring your home stays safe even when the pet door is installed, and you can also control your pet’s access by closing the panel when needed. On the downside, the door is designed only for small pets, so larger dogs won’t fit. Some users might find the flap a bit stiff initially, requiring pets to get used to it. Also, while weatherproofing is good, extreme weather conditions might still affect the door’s performance. If you want a secure, easy-to-install pet door that won’t damage your sliding door and fits small cats or dogs, this product offers a practical and user-friendly solution.

The Endura Flap Pet Door is designed for wall installation and works well for large pets, including big dogs or cats up to 28 inches tall, thanks to its sizable 10" x 19" double flap. The use of sturdy aluminum for the frame and a flexible polymer flap ensures durability and resistance to extreme weather, from freezing cold to strong winds, making it a solid choice for year-round outdoor access. Its double flap design is energy-efficient, sealing tightly with magnets to keep drafts and noise out, which helps maintain comfortable indoor temperatures and reduces energy costs.

The door also includes a secure locking cover for added safety when you want to restrict pet access. Installation is supported by detailed instructions and a telescoping tunnel fitting walls between 2" and 7.75" thickness, but homes with thicker walls might need to consider a different model or additional parts. While it’s built tough and weatherproof, the installation process might be more involved than simpler door-mounted options, so some DIY confidence is helpful.

The magnetic seals are adjustable, which is great for training pets who might be shy at first, allowing a smoother transition. Customers rate it well for performance and durability, though it’s heavier and larger than many door-mounted pet doors, reflecting its robust construction. This product suits pet owners looking for a high-quality, insulated, and weather-resistant wall pet door that balances security, energy savings, and long-term reliability.

The Endura Flap Double Flap Pet Door is a sturdy and well-built option for pet owners looking to install a cat or small dog door in their home. Its aluminum frame is durable and resistant to weather, making it suitable for both interior and exterior doors. The dual-layer flaps are insulated and flexible, helping to keep drafts and harsh weather out, even in strong winds up to 50 mph. The size is small, accommodating pets up to 14 inches tall, which fits most cats and very small dogs comfortably.

Installation is quite versatile, as this pet door works with various door types including solid, hollow, metal, and storm doors, provided the door thickness is between about 1.75 and 2.4 inches. The door comes with clear instructions, and the locking mechanism is strong and secure, featuring a heavy-duty cover that prevents unwanted entry when locked. This locking feature is convenient for keeping the door closed at night or when you want to restrict outdoor access.

The door size is limited to small pets, so it won’t suit larger cats or dogs. While the magnetic flap design helps reduce noise and keeps the flap closed tightly, some noise may still occur when your pet uses it, which is typical for pet doors but worth noting if you prefer something ultra-quiet. Made in the USA and backed by a lifetime warranty, this product is a solid investment for pet owners seeking a dependable, weatherproof door that balances ease of use with security and insulation. It’s especially well suited for those who want a neat, stylish door installed on various door types without sacrificing durability or energy efficiency.