Casement Windows for Homes in Connecticut & Massachusetts

Casement windows are the perfect choice for homeowners who want a clean, modern look, excellent ventilation, and superior energy performance. At SEVEN SUN, we offer two carefully selected models — the Casement 700 by OKNA and the Endure Casement by ProVia — both designed to provide airtight sealing, smooth operation, and long-term reliability. Request your FAST Free Quote today and find the right casement window for your home.

Why Choose Casement Windows?

Casement windows open outward like a door, providing full top-to-bottom ventilation and clear, uninterrupted views. Their compression-seal design makes them more airtight than sliding or double-hung styles — ideal for maximum energy efficiency.

Casement 700 by OKNA – Sleek, Airtight, and Ultra-Efficient

This uPVC-framed window delivers exceptional performance and visual appeal. With its airtight closure, smooth crank operation, and minimalist frame profile, the Casement 700 is perfect for modern and transitional homes. Advanced Low-E glass and multi-point locking offer strong security and serious energy savings.

Endure Casement by ProVia – Thick Glass, Elegant Hardware

Known for its beautiful craftsmanship, the Endure Casement window features thicker insulated glass, refined hardware finishes, and a variety of custom options. Built for thermal comfort and strength, it’s a standout choice for homeowners who want both beauty and performance in one frame.

Expertly Installed or Supplied by SEVEN SUN

Whether you’re replacing one window or upgrading your entire home, SEVEN SUN offers full installation or supply-only service. We serve homeowners, builders, and contractors throughout Connecticut and Western Massachusetts with trusted product support and clean, detail-focused work.

Casement windows are an excellent investment for homeowners who want quiet operation, airtight performance, and modern style. With top-tier options from OKNA and ProVia, SEVEN SUN makes it easy to compare and customize your project.

From frame color to glass type to hardware finish, we’ll guide you every step of the way. Get your FAST Free Quote today and let SEVEN SUN help you find the casement window that checks every box.