Elegant Views, Expanded Space

Add architectural elegance to your East Hampton home with bay or bow windows. These expansive styles are ideal for sun-filled living rooms or waterside reading nooks, offering sweeping views of the Montauk Highway countryside or manicured village gardens. Choose from customizable configurations, seat board options, and energy-efficient glass packages—all designed for durability, comfort, and timeless appeal. Our expert team ensures a flawless installation that transforms both the inside and outside of your Long Island home.

Sleek Design, Maximum Ventilation

Perfect for maximizing sea breezes off Georgica Pond or Accabonac Harbor, our casement windows swing open wide for superior airflow and panoramic views. East Hampton homeowners love their sleek lines, airtight seal, and tailored fit for both coastal cottages and new constructions. Built with advanced sealing technology and high-performance glass, they deliver outstanding thermal insulation and weather resistance, even in Long Island’s coastal climate. Customize your look with multiple frame finishes, grille patterns, and hardware options for a clean, contemporary aesthetic.

Classic Style, Modern Efficiency

Our double-hung windows offer timeless appeal and smooth functionality—ideal for the traditional homes and saltbox designs seen throughout East Hampton Village and Northwest Woods. With tilt-in sashes for easy cleaning and advanced glass for energy efficiency, they blend historic charm with modern performance.

Designed with two operable sashes that tilt in for easy cleaning, these windows offer versatile ventilation, excellent airflow control, and low maintenance convenience. Each unit is built with multi-chambered frames, energy-efficient glass, and weather-tight seals to enhance insulation and reduce energy costs year-round. With a variety of finishes, grille designs, and hardware options, double-hung windows are a smart, stylish upgrade for any room.

Bring the Outdoors In

Add a touch of greenhouse charm to your East Hampton kitchen with a custom garden window. Popular in Hamptons-style remodels, they create a sunlit space for herbs, décor, or seaside blooms—bringing nature indoors.

With operable side vents for ventilation, energy-efficient glass, and durable, low-maintenance materials, our garden windows offer both form and function. Enjoy panoramic views and extra shelf space while brightening up your interior with natural light—all with expert installation and long-lasting performance tailored for Long Island homes.

Expansive Views, Maximum Efficiency

For unobstructed views of the Atlantic or a serene backyard landscape in East Hampton’s Springs or Amagansett neighborhoods, picture windows provide a dramatic, energy-efficient focal point. Their fixed design allows for larger glass panels and stunning natural light. Built with high-performance insulated glass and airtight seals, our picture windows enhance energy efficiency, reduce outside noise, and deliver a clean, modern aesthetic. With customizable sizes and frame finishes, Thermo-Seal’s picture windows are a stylish, energy-smart choice for Long Island homes.

Sleek, Space-Saving Performance 

Ideal for modern homes near East Hampton South or low-maintenance guesthouses, sliding windows offer space-saving ventilation with a clean, horizontal profile. Their easy operation and durability make them perfect for coastal environments.These horizontally gliding windows feature smooth-operating tracks, low-profile frames, and wide glass areas that bring in natural light while maintaining excellent insulation. With dual operable sashes and easy-to-remove screens, sliding windows are great for rooms where space is tight but ventilation is essential. Built to resist drafts, moisture, and wear, they deliver long-lasting performance with minimal upkeep—a smart, stylish solution for any home.