Distributor
NT Window
Vinyl windows, the Twinsulator aluminum window, and sliding patio doors. Fort Worth manufacturer. Capital Glass supplies the line in Houston.
Explore vinyl, aluminum, and doorsResidential windows
Residential Windows & Architectural Glazing
Premium window and door systems for Houston's finest homes.
High-performance residential windows, architectural glass walls, sliding doors, and custom exterior glazing for Houston builders, architects, and higher-end homes.
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Our Window & Door Manufacturers
Capital Glass distributes NT Window and Don Young Company for residential vinyl windows, aluminum windows, and patio doors. The quote stays with Capital Glass.
Atlas, CRL, Kawneer, Sentinel, SSI, and Trulite remain homepage glazing suppliers. They are not this residential window line. Series names below are the manufacturers' own. Don Young's current public site lists the same windows by operation, and a series is confirmed for the opening. The photographs are Capital Glass studies, not manufacturer brochure art.
- Distributor
Distributor
Don Young Company
Dallas manufacturer since 1978, with a Houston branch. Thermally broken aluminum windows, Sunshield vinyl windows, sliding patio doors, slide-and-stack doors, swing entry doors, and storm windows and doors. Capital Glass supplies the line. The quote stays here.
Explore vinyl, aluminum, and doors03
Vinyl, Aluminum, and Sliding Doors
These are the NT Window and Don Young groups Capital Glass can quote. Size, glass, color, and any impact requirement are confirmed for the opening.
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01 Vinyl Windows Hung, sliding, picture, casement, and awning windows, including shaped units. NT Window also has an impact series. Don Young calls its vinyl line Sunshield. A rating is confirmed for the specific opening.
NT Window- Traditions
- Presidential
- Executive
- Energy Master
- Solar Pro
- 1800 Series
- 1800 Impact
Don Young SunshieldCapital Glass concept study. Not a manufacturer photograph or an exact product sample.- 5200 single hung
- 5400 double hung
- 5100 slider
- 5700 double slider
- 5500 picture
- 5600 casement
- 5800 casement
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02 Aluminum Windows Both lines are thermally improved aluminum. NT Window publishes crème white, bronze, and black on Twinsulator. Don Young publishes white, tan, and bronze on the double-hung system, and shows a black frame on the aluminum line.
NT Window- Twinsulator single hung
- Twinsulator sliding
- Twinsulator picture
- Twinsulator casement
- Twinsulator awning
Don YoungCapital Glass concept study. Not a manufacturer photograph or an exact product sample.- 8200/8800 single hung
- 8400 double hung
- 8700 double slider
- 8300 picture
- 8500 picture
- 8900 casement
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03 Sliding Glass Doors NT Window lists named sliding and lift-and-slide series. Don Young lists aluminum and vinyl sliding patio doors, plus slide-and-stack. Panel count, size, glass, and finish are confirmed for the opening.
NT Window- KD650 vinyl sliding
- Studio aluminum sliding
- Urbania aluminum sliding
- Loft aluminum lift-and-slide
Don YoungCapital Glass concept study. Not a manufacturer photograph or an exact product sample.- Aluminum sliding patio door
- Vinyl sliding patio door
- Slide and stack
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Glazing in finished buildings
These photographs are Capital Glass projects. They show the scale of exterior and architectural glass. They are not a manufacturer product line, and they are not a claim that every commercial system is approved for a house.
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Architectural Glazing for the Texas Gulf Coast
Houston glazing has to answer heat, solar exposure, energy performance, weather, and, where it applies, windstorm requirements. Capital Glass helps builders and homeowners choose the system for the project.
- Commercial storefront, curtain wall, and large-assembly experience applied to unusually large residential openings.
- A commercial product is not treated as approved for a house unless the manufacturer and the opening say it is.
- The conversation is product selection and installation, not a replacement-window price list.
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Request a Window & Door Quote
Say whether this is new construction, replacement, or custom architectural glazing. Include the preferred manufacturer if you have one, the project location, and whether you need materials only or installation as well. Drawings can be sent as a secure link.
Capital Glass is a Houston source for premium window, door, and architectural glazing systems. A quote can cover materials only or materials and installation. Name the manufacturer if you already have one, and say whether the work is new construction, replacement, or a custom opening.
Request a Project QuoteTechnical review
Plan the glass around the opening and the exterior condition.
Capital Glass is a Houston source for premium window, door, and architectural glazing systems. A quote can cover materials only or materials and installation. Name the manufacturer if you already have one, and say whether the work is new construction, replacement, or a custom opening.
Some requests involve glass replacement within an existing system; others require coordination with new framing, doors, walls, or custom architectural glazing. The existing or proposed assembly determines what can be evaluated and supplied.
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- Opening and system Identify whether the work involves replacement glass, an existing frame, a complete new system, or a custom exterior glazing condition.
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- Glass make-up Confirm dimensions, thickness, insulating configuration, coating, tint, safety glazing, pattern, privacy, and edge or fabrication requirements.
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- Exposure and interfaces Review accessible perimeter conditions, drainage, sealants, adjacent finishes, access, handling, and weather exposure.
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- Appearance and performance Coordinate visible color and reflectance with the intended energy, safety, privacy, and project-specific performance requirements.
What to expect
Clear scope. Practical next steps.
- Opening and existing-condition review
- Defined glass make-up and fabrication requirements
- Coordination with the applicable frame or glazing system
- Confirmed supply or installation scope before ordering
Capital Glass confirms the available scope after reviewing the opening and system. Product availability and suitability depend on verified dimensions, existing conditions, and manufacturer requirements. A commercial system is not automatically approved for residential use.