Business Details
47 Years
experience
Energy Efficient Interior Window Systems
Since 1979, Thermolite has pioneered innovative interior window retrofit solutions, delivering energy efficiency, security, and historic preservation for commercial, government, and institutional buildings. As a GSA-certified contractor, we serve clients nationwide with patented systems that transform existing windows into high-performance barriers against energy loss, blast threats, hurricanes, and sound infiltration. Our approach prioritizes minimal disruption through interior installation, preserving architectural integrity while achieving up to 90% cost savings compared to full window replacement.With third-party validated energy modeling and guaranteed R-value improvements, we provide firm fixed pricing and financing options to maximize ROI. Our teams expertise in performance contracting and risk assessments ensures seamless integration into energy service company (ESCO) projects, reducing HVAC expenses by sealing building envelopes efficiently. Backed by decades of experience and a commitment to U.S.-based manufacturing, Thermolite combines technical excellence with client-centric service to address evolving industry demands.
Services
Interior Storm Windows
Blast Mitigation Windows
Curtain Wall Retrofits
Hurricane Protection Systems
Signal Defense Windows
Sound Control Solutions
Energy Modeling
Thermal Imaging
Special Installation Services
Blast Window Retrofits
Details
- Year established: 1979
Highlights and features
- We offer patented interior window systems with proven 20% energy savings.
- Our retrofits cost 50-90% less than full window replacements.
- Installations maintain historic building integrity with interior-only work.
- We provide firm fixed pricing even with incomplete project information.
- Our systems meet federal blast, hurricane, and cybersecurity requirements.
Associations and certifications
- GSA (General Services Administration)
Services
Interior Storm Windows
Thermolite's interior storm windows provide hurricane resistance while maintaining aesthetic integrity. Installed on existing glass, they withstand Category 5 winds without exterior modifications. Ideal for coastal regions, these systems reduce energy loss and protect against water intrusion while preserving building design.
Blast Mitigation Windows
Our blast windows use patented Compression Release Technology to absorb high-pressure impacts without structural reinforcement. Designed for government and financial institutions, these systems discreetly enhance security during off-hours installation. They meet federal anti-terrorism standards while maintaining energy efficiency.
Curtain Wall Retrofits
Curtain wall retrofits improve thermal performance of high-rise buildings without replacing exterior facades. Thermolite's system seals air gaps, reducing HVAC loads by 20% while maintaining architectural aesthetics. Ideal for compliance with NYC Local Law 97 energy mandates.
Sound Control Windows
Sound control systems reduce exterior noise infiltration by up to 90% through dual-pane low-e glazing. Effective for urban offices and healthcare facilities, these windows create quiet environments without altering exterior appearances. The air gap between panes traps both high and low frequency sounds.
Energy Modeling Services
Our energy modeling uses DOE-certified software to predict retrofit outcomes. By analyzing U-values and air infiltration rates, we quantify energy savings and ROI for ESCO projects. Third-party validated models guarantee R-value improvements, helping clients meet sustainability targets with measurable results.
Questions
What is Thermolite's interior window retrofit system?
Our patented system installs on existing windows' interior to improve energy efficiency, security, and soundproofing without replacing exterior glass.
How much energy savings can Thermolite windows provide?
Clients typically see 20% annual energy savings through reduced HVAC usage and improved thermal insulation.
Are financing options available for Thermolite installations?
Yes, we offer financing programs to help clients implement energy-efficient upgrades with immediate ROI.
Can Thermolite windows protect against bomb blasts?
Our Blast Safety Series windows use Compression Release Technology to withstand high-pressure impacts without structural steel reinforcement.
Do installations require building evacuations?
No, most installations occur during off-hours with minimal disruption to regular operations.
How does Thermolite handle historic building requirements?
Our interior installation preserves exterior facades, maintaining historic integrity while upgrading energy performance.
