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Business Details
50+ Years
experience
Premium Entry Door Systems & Building Solutions
Therma-Tru has been a leader in the door manufacturing industry for over five decades, consistently delivering high-quality entryway solutions that combine innovation with durability. Our commitment to excellence is reflected in our comprehensive product lineup, which includes fiberglass doors, composite door frames, and storm doors designed to enhance both residential and commercial properties. With a focus on sustainable practices through our Therma-Tru Thrive initiative, we prioritize environmental responsibility while maintaining superior performance standards. Our team of experts works closely with architects, builders, and homeowners to create customized entry systems that meet diverse aesthetic and functional requirements. Backed by rigorous testing and industry certifications, our products are engineered to withstand extreme weather conditions while maintaining energy efficiency. Through strategic partnerships with certified installers and major retailers like Lowe's, we ensure professional-grade solutions are accessible nationwide.

Our dedication to customer satisfaction is supported by extensive technical resources, including installation guides, finishing kits, and comprehensive warranty programs. As an ENERGY STAR partner, we continually strive to exceed energy efficiency benchmarks while offering innovative designs that elevate curb appeal. With manufacturing facilities across North America, we maintain strict quality control measures to guarantee every product meets our exacting standards. Our digital tools, such as the AI-powered Smart Door Finder, empower customers to visualize and select perfect entry solutions for their specific architectural styles. Through ongoing product development and market research, we remain at the forefront of industry trends while maintaining our founding commitment to craftsmanship and customer-centric innovation.
Services
Entry Doors Storm Doors Replacement Parts Stain Kits Door Installation Guides
Details
  • Year established: 1975
Highlights and features
  • We offer over 50 years of specialized expertise in door system engineering
  • Our products feature patented composite materials for superior durability
  • We provide ENERGY STAR certified energy-efficient door solutions
  • Our certified installer network ensures professional-grade installations
  • We maintain rigorous quality control with third-party product certifications
Associations and certifications
  • ENERGY STAR
Services
Entry Doors
Therma-Tru's fiberglass entry doors combine aesthetic appeal with structural integrity. Engineered with patented composite materials, these doors resist warping and fading while maintaining energy efficiency. Available in multiple styles and finishes to complement various architectural designs, they provide secure, long-lasting solutions for residential and commercial properties.
Storm Doors
Our LARSON storm doors offer enhanced protection against weather elements while maintaining visibility and ventilation. Featuring durable aluminum frames and interchangeable glass panels, these doors provide seasonal adaptability. The retractable screen option allows natural airflow without compromising security or energy efficiency for year-round performance.
Replacement Parts
We supply genuine replacement parts for maintaining optimal door system performance. From weatherstripping to hardware components, our parts ensure continued functionality and longevity. The Advantage Lite frame system simplifies replacements while maintaining original product specifications and warranty coverage.
Stain Kits
Our same-day stain kits allow customization of door finishes to match specific design preferences. Formulated for durability and UV resistance, these stains maintain color integrity over time. The collection includes multiple wood grain options that enhance the natural appearance of fiberglass door surfaces.
Door Installation
Certified installers provide expert door system installations following manufacturer specifications. The process includes proper sealing techniques to prevent air infiltration while maintaining structural integrity. Training programs ensure installers meet quality standards for long-term performance and warranty compliance.
Questions
What types of doors does Therma-Tru manufacture?
We produce fiberglass entry doors, composite door frames, storm doors, and retractable screen systems for residential and commercial applications.
Are Therma-Tru doors energy efficient?
Yes, our doors meet ENERGY STARĀ® requirements and feature advanced insulation properties to improve building energy efficiency.
How can I find installation instructions?
Installation guides and technical manuals are available in our online How-To Center and product literature resources.
Do you offer customization options?
Yes, our Smart Door Finder tool helps visualize different styles, finishes, and glass options for customized entryway solutions.
What warranty coverage is available?
We offer comprehensive limited warranties covering materials and performance, with specific terms varying by product line.
Where can I purchase Therma-Tru products?
Products are available through certified installers, building professionals, and retail partners like Lowe's nationwide.