Thermolite

Since 1979, Thermolite has been a leading innovator in secondary interior window systems, delivering energy-efficient, secure, and durable solutions for diverse industries. As a GSA-certified federal contractor, we serve clients nationwide with expertise in retrofitting existing windows to enhance performance without compromising aesthetics. Our patented Thermolite Window System transforms existing glass into high-efficiency units, offering cost-effective alternatives to traditional replacements. With decades of experience, we specialize in addressing energy conservation, blast mitigation, hurricane protection, and sound control while preserving historical integrity. Our solutions cater to military installations, government buildings, banks, historic structures, hospitality venues, office buildings, healthcare facilities, and educational institutions.

By installing discreetly from the interior, we minimize disruption and offer off-hours installation for client convenience. Our team combines technical expertise with a commitment to sustainability, achieving up to 25% energy savings and rapid ROI for clients. We hold certifications and partnerships with federal agencies, including GSA and DOD, ensuring compliance with rigorous security and performance standards. Our dedication to innovation is reflected in our patented compression release technology, which eliminates the need for structural steel reinforcement in blast windows. With a focus on client satisfaction, we provide tailored solutions that balance functionality, security, and cost efficiency, making us a trusted partner for complex window challenges.