Insul-TEC 500 Sliding Window – Value, Function, and Everyday Comfort

The Insul-TEC 500 sliding window, manufactured by OKNA and installed by SEVEN SUN, is the perfect choice for homeowners seeking dependable performance, clean design, and effortless operation — all at a more accessible price. With EZ-Glide technology and energy-saving features, it offers long-term comfort without compromise. Request a FAST Free Quote today and discover a smarter way to upgrade your windows.

Smooth Operation with EZ-Glide Track System

Built on the same proven gliding technology as higher-end models, the 500 series features EZ-Glide tracks that let sashes slide with minimal effort. Designed for daily use, this system feels light, responsive, and quiet.

Efficient and Airtight Where It Matters Most

With multi-chambered uPVC construction, dual weather seals, and ENERGY STAR® certified glass options, the Insul-TEC 500 helps lower energy bills and keep your interior temperature steady. Ideal for New England’s four-season climate.

A Smart Choice That Looks as Good as It Performs

This sliding window doesn’t just work well — it looks great, too. With a clean frame design and low-profile handles, it offers a contemporary style that fits almost any home aesthetic.

Available Installed or Supplied by SEVEN SUN

Whether you’re working with a contractor or want a seamless install from our expert team, SEVEN SUN can help. We serve homeowners, remodelers, and developers across Connecticut and Western Massachusetts. Get a FAST Free Quote today and let’s get your project started right.

The Insul-TEC 500 sliding window by OKNA is a smart, efficient, and budget-friendly upgrade that delivers on comfort and performance. It’s an ideal fit for homeowners who want quality without overpaying.

SEVEN SUN installs and supplies this model across CT & MA with care, precision, and helpful support. Reach out now for your FAST Free Quote and let’s make your next window replacement simple and successful.