Lowcountry Window Replacement
Casement windows open to ocean breeze on coastal home
Windows
Casement
Simonton Authorized Dealer

Casement Window Replacement in Charleston & the Lowcountry

Featuring Simonton's 5500 Collection and StormBreaker Plus® - crank open to catch the coastal breeze with maximum ventilation, unobstructed views, and superior security.

Authorized Simonton Dealer

We install Simonton windows - one of America's most trusted vinyl window brands for over 75 years.

75+
Years Manufacturing
4.7★
Customer Rating
AAMA
Gold Certified
ENERGY★
STAR Qualified
About Casement Windows

Maximum Ventilation for Coastal Living

Simonton casement windows are hinged on the side and swing open outward using a smooth crank mechanism. Because the entire sash opens, they provide more ventilation than almost any other window style. For Lowcountry homeowners, that means more of those beautiful coastal breezes flowing through your home.

Simonton's fusion-welded frames and multi-point locking system create an exceptionally tight seal when closed - helping keep your home comfortable, energy-efficient, and secure. The nesting crank handle folds neatly away when not in use for a clean, streamlined look.

Built with premium vinyl that stands up to South Carolina's coastal conditions - salt air, humidity, and intense UV exposure won't cause them to rot, warp, or fade. Available with SafePoint® impact-rated glass for coastal storm protection throughout the Lowcountry.

Simonton casement window open to Lowcountry marsh view
Simonton Features

Built for the Lowcountry

Every Simonton casement window is custom-built to exact size and backed by a Lifetime Limited Warranty.

Hinged on the side, cranks open outward for maximum ventilation
Full sash opening - no center rail to obstruct airflow or views
Multi-point locking system for superior security when closed
Nesting crank handle folds neatly away when not in use
Fusion-welded frame corners for strength and weather resistance
ProSolar® Low-E glass with Argon gas insulating unit
16-chamber sash design maximizes insulation and interior comfort
Triple-fin weatherstripping virtually eliminates air and water infiltration
Premium vinyl resists salt air, humidity, and UV damage
Available with SafePoint® impact-rated glass for coastal storm protection
Easy single-handed crank operation
Wide range of colors, grille patterns, and hardware finishes
Custom-built to exact size for a perfect fit
Lifetime Limited Warranty and AAMA Gold Certified
Simonton Collections

Choose Your Collection

We offer two Simonton casement collections to match your home's needs and budget.

Simonton 5500

Most Popular

The flagship collection with traditional beveled frame design. Exceptional energy efficiency with ProSolar® Low-E glass and Argon gas. Available in 9 exterior colors, interior woodgrain laminates, and premium hardware finishes.

  • ENERGY STAR® qualified glass packages
  • 9 exterior colors + woodgrain interiors
  • Triple-pane glass option available
  • Good Housekeeping Seal collection

StormBreaker Plus®

Coastal Impact

Hurricane-rated impact protection for coastal South Carolina. SafePoint® Max laminated glass guards against windborne debris while also blocking 99% of UV rays and significantly reducing outside noise.

  • Certified Missile D impact rating
  • SafePoint® Max laminated glass
  • 50% sound reduction (STC 35)
  • No shutters needed for storm protection
Why Simonton

America's Most Trusted Window Brand

Good Housekeeping Seal

Simonton 5500 collection received the Good Housekeeping Seal for quality and performance.

AAMA Gold Certified

Every window is verified to meet industry-leading AAMA Gold Certification standards.

ENERGY STAR® Qualified

Region-specific glass packages meet ENERGY STAR guidelines for optimal energy performance.

Lifetime Limited Warranty

Backed by a comprehensive Lifetime Limited Warranty on vinyl, hardware, and glass.

FAQ

Casement Window FAQs

Ready for New Simonton Casement Windows?

Get a free in-home estimate from Charleston's most trusted Simonton window dealer.