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Business Details
34 Years
experience
Custom Windows and Doors in Dallas, TX
Since 1992, Thermal Windows has been Dallas/Fort Worth's premier window and door manufacturer and installer. Our in-house team designs and crafts custom vinyl, aluminum, and fiberglass windows at our Dallas, Texas factory, offering factory-direct pricing without compromising quality. With over 30 years of experience, we specialize in replacement and new construction windows for residential and commercial properties, backed by one of the strongest limited lifetime warranties in the industry. Our full-time professional installation department ensures precision fitting for every project, from single windows to entire home installations. Recognized as 'America's Finest Window' since our founding, we've completed over 14,000 projects across the DFW Metroplex, combining advanced thermal technology with expert craftsmanship.

Our team provides personalized consultations to help clients select the optimal window solutions for their specific needs and budget. Featured in local media and trusted by homeowners for energy-efficient solutions that reduce utility costs while enhancing property value. We maintain complete control over every project phase from design to installation, ensuring consistent quality and customer satisfaction. Our commitment to excellence extends to using only premium materials that deliver durability, energy efficiency, and aesthetic appeal. With showrooms in both Dallas and Fort Worth, we serve over 75 communities across North Texas, making high-performance windows accessible to every homeowner.
Services
Vinyl Windows Aluminum Windows Fiberglass Windows Custom Windows Patio Doors
Details
  • Year established: 1992
Highlights and features
  • In-house manufacturing and installation teams ensure quality control
  • Factory-direct pricing with no middlemen
  • Energy-efficient windows proven to reduce utility bills
  • 30+ years serving Dallas/Fort Worth communities
  • Limited lifetime warranty covering materials and installation
What people say
Great job Friendly installers Energy savings Professional crew Added home value
Services
Vinyl Windows
Our vinyl replacement windows combine durability with energy efficiency through multi-chambered profiles and fusion-welded frames. These low-maintenance windows resist fading, cracking, and corrosion while providing excellent thermal insulation. Ideal for Dallas climate conditions, our vinyl windows reduce outside noise and lower energy bills through advanced glass packages including triple low-E coatings.
Aluminum Windows
Thermally broken aluminum windows offer superior strength with enhanced energy performance. Our hybrid aluminum systems feature polyurethane thermal barriers that prevent heat transfer while maintaining structural integrity. Available in fixed, awning, and sliding configurations, these windows withstand extreme weather conditions while providing sleek, modern aesthetics for both residential and commercial applications.
Fiberglass Windows
Fiberglass windows deliver exceptional strength-to-weight ratio with minimal expansion and contraction. Our fiberglass frames maintain dimensional stability across temperature extremes, ensuring long-term performance. These windows accept factory-applied finishes that resist chipping and fading, available in casement, awning, and tilt-and-turn styles that combine European design with Texas durability requirements.
Patio Doors
Heavy-duty aluminum patio doors feature thermal barrier technology for improved energy efficiency. Our custom-sized systems include multi-point locking mechanisms and heavy-duty rollers for smooth operation. Designed for high-traffic areas, these doors withstand daily use while maintaining weather tightness through advanced gasketing systems and reinforced framing components.
Custom Windows
Custom-shaped windows accommodate unique architectural requirements with precision-engineered solutions. Our design team creates eyebrow, bow, and geometric configurations using high-performance materials that maintain structural integrity. Each custom window receives tailored glass packages and finish options to match specific aesthetic and functional needs while meeting Texas energy code requirements.
People
Martin E Gates II
President
Martin E Gates II leads Thermal Windows with over 30 years of industry experience. As President of J & M Glass Co., Inc., he oversees operations and strategic direction while maintaining hands-on involvement in client consultations. His leadership focuses on combining innovative window technology with personalized service to deliver energy-efficient solutions that enhance property value and occupant comfort.
Questions
What types of windows do you offer?
We offer vinyl, aluminum, and fiberglass windows in single hung, double hung, sliding, casement, awning, tilt-and-turn, and custom shapes.
Do you serve areas outside Dallas?
Yes, we service over 75 cities across the DFW Metroplex including Fort Worth, Plano, McKinney, and Arlington.
What warranty do your windows include?
We offer one of the strongest limited lifetime warranties in the industry covering both materials and installation workmanship.
Are your windows energy efficient?
Yes, our windows feature advanced thermal technologies including triple low-E coatings and thermal barrier systems to reduce energy costs.
Do you handle both residential and commercial projects?
Yes, we provide window solutions for both residential homes and commercial buildings across North Texas.
How long does window installation take?
Most residential installations complete within 1-2 days depending on project size, using our dedicated in-house installation team.