As pet owners, we all want our furry friends to have the freedom to move between the indoors and outdoors safely and conveniently. However, if you have double-glazed doors or windows, you might be wondering whether it’s possible to install a cat flap without compromising security or insulation. At LN Glazing, we specialise in professional cat flap installations in double glazing across Harlow and surrounding areas.

Why Choose a Cat Flap in Double Glazing?

Many modern homes feature double-glazed patio doors or French doors, making them a common location for cat flap installations. Unlike traditional wooden doors, these require a professional glazier to modify the glass while maintaining its structural integrity.

By installing a cat flap in a double-glazed unit, you ensure:

✔ Convenience for your pet – No more waiting by the door to let them in or out.
✔ Energy efficiency – Professionally sealed units prevent draughts and heat loss.
✔ Security – Using toughened glass and secure locking systems keeps your home protected.
✔ A seamless look – Our expert glazing ensures a clean, polished installation.

How We Install Cat Flaps in Double Glazing

At LN Glazing, we follow a precise process to ensure a safe and professional installation:

1️⃣ Site Visit & Measurement – We assess your existing glass unit and recommend the best type of cat flap.
2️⃣ Custom Glass Replacement – Instead of cutting into your existing glass (which can weaken it), we provide a new, professionally manufactured toughened glass unit with a pre-cut hole.
3️⃣ Installation – Once the new glass is ready, we install it securely into your door or window frame.
4️⃣ Finishing Touches – We fit the cat flap and ensure it’s weatherproof and secure.

Can a Cat Flap Be Installed in Any Window or Door?

Yes, we can install cat flaps in:
✅ Patio doors
✅ French doors
✅ Bi-fold doors
✅ Glass panels next to doors

If you have triple glazing or listed property windows, get in touch, and we’ll discuss the best options available.

Why Choose LN Glazing for Cat Flap Installation in Harlow?

🏠 Expert glaziers – We have years of experience working with double glazing.
🔧 Professional service – We handle the process from start to finish, ensuring minimal disruption.
🛠 High-quality materials – We use toughened glass to maintain your home’s safety and insulation.
📍 Local to Harlow – We provide fast and reliable service across Harlow and surrounding Essex areas.

Contact LN Glazing Today

Looking for a professional cat flap installation in double glazing? Get in touch with LN Glazing today for a free quote. 


📧 Email us: info@lnglazing.co.uk