Windows and Doors Companies in Texas

Short answer: Exchange lists 16 window and door companies in Texas. Texas issues no state licence for window and door installation, so the binding requirements are code-based: solar heat gain coefficient limits under the state-adopted energy code, tempered safety glazing in hazardous locations, egress dimensions on bedroom windows, and — in the fourteen coastal catastrophe counties — windstorm-rated impact glazing documented by a TDI product evaluation and a WPI-8 certificate.

Window and door companies in Texas

Texas spans four climate zones and three distinct glazing problems. In Houston, San Antonio and the Rio Grande Valley the problem is solar heat gain in a cooling-dominated climate where the sun is the largest load on the building. Along the coast from Orange to Brownsville the problem is windborne debris, and the glazing is a structural component of the building envelope. In the Panhandle and West Texas the problem is temperature swing, wind-driven dust and hail. A window specification that is right in Amarillo is wasteful in Corpus Christi and inadequate in Galveston.

This directory lists window and door companies operating across Texas: residential replacement window firms across the major metros, impact and hurricane glazing specialists on the coast, commercial glazing and curtain wall contractors on the office, healthcare and institutional stock, and door, storefront and automatic entrance companies serving retail and commercial clients.

Licensing: what Texas does and does not require

Texas issues no statewide licence for window or door installation, and no general contractor licence at all. There is no Texas Department of Licensing and Regulation credential for glazing. What exists instead is a layered set of obligations. Municipalities require contractor registration to pull permits, and most Texas cities do require a permit for window replacement where the opening size, structural header or egress condition changes — and increasingly for like-for-like replacement as well. General liability insurance and, where the firm has employees, workers' compensation are practical requirements of any commercial client even though Texas does not mandate workers' compensation for private employers. On the coast, TDI inspection and certification is the binding credential and it is job-specific rather than firm-specific.

The absence of a licence puts the burden of verification on the buyer. The useful checks are the manufacturer's certified installer status where a product warranty depends on it, current general liability coverage confirmed with the carrier rather than by certificate, city registration in the jurisdiction where the work is, and product approval documentation for the specific assemblies proposed.

The coast: WPI-8 and windborne debris

In the designated windstorm catastrophe area — the fourteen first-tier coastal counties plus parts of Harris County east of Highway 146 — new and replacement glazing must be windstorm-rated, and the assembly must appear on the Texas Department of Insurance product evaluation list. The compliance instrument is the WPI-8 certificate of compliance, which is issued after inspection by a TDI appointed engineer or qualified inspector and which is what makes the structure eligible for windstorm coverage through the Texas Windstorm Insurance Association.

The rule that catches homeowners is that the certificate cannot be issued retroactively once the work is closed in and hidden. A window replaced without inspection in Galveston or Corpus Christi has not merely skipped a formality; it has potentially removed the property's eligibility for windstorm coverage at the next renewal. Opening protection may be satisfied by impact-rated glazing or by approved shutters, and the choice changes both cost and the insurance credit.

Energy code, SHGC and why U-factor is the wrong headline

Texas adopts the International Energy Conservation Code through the State Energy Conservation Office, and the fenestration requirements vary by climate zone. In the cooling-dominated southern zones the governing number is the solar heat gain coefficient, not the U-factor. A window marketed on its insulating value while carrying a high SHGC will underperform in Houston, because the dominant heat flow is radiant gain through the glass rather than conduction through the frame. Low-E coatings tuned for southern climates — spectrally selective, low SHGC, high visible transmittance — are what the code and the physics both want here. NFRC labels carry both numbers and the label is what the inspector reads.

Safety glazing, egress and the details that fail inspection

Tempered or laminated safety glazing is required in hazardous locations defined by the residential and building codes: doors and sidelights, glazing near a walking surface below a defined height, glazing adjacent to stairs and landings, and glazing near tubs, showers and pools. The permanent manufacturer's etch in the corner of the pane is the evidence, and its absence is a straightforward inspection failure that requires the unit to come out.

Egress is the second recurring failure. A replacement window in a sleeping room must maintain the required clear opening area, clear width and height, and sill height above the finished floor. A retrofit insert window installed inside the existing frame reduces the clear opening, and on an older house whose original window only just met egress, the insert can put it below the minimum — a defect that appears at inspection or, worse, at resale years later.

Hail, contracts and payment

Texas is the leading hail state in the country and glazing damage is a routine claim. Texas law prohibits a contractor from paying, waiving, rebating or absorbing an insurance deductible, and separately bars a contractor from acting as a public insurance adjuster on a claim it is bidding. On payment, mechanic's lien deadlines in Texas run on a monthly notice schedule that differs for residential and commercial property, with subcontractors required to send notice by the fifteenth day of specified months following the work. The 2022 amendments consolidated some of those notices, but the monthly rhythm remains, and it is the aspect of Texas lien law that out-of-state firms most reliably get wrong.

Commercial glazing and curtain wall

Above the residential market sits a distinct commercial trade: storefront, curtain wall, structural silicone glazing and automatic entrances on office, healthcare, education and institutional buildings. The technical issues are different from residential replacement - thermal breaks and condensation resistance at the frame, air and water performance tested to AAMA and ASTM standards, differential movement at slab edges and between the glazing system and the primary structure, and on taller buildings a field water test regime written into the specification. Blast and forced-entry requirements appear on federal and courthouse work in the state. A firm doing residential replacement well is not, on that basis, qualified for curtain wall, and the two are separate businesses that happen to share a material.

West Texas: dust, wind and thermal cycling

In the Panhandle and Permian Basin the failure mode is neither solar gain nor debris but abrasion and infiltration. Wind-driven dust finds every gap in a weatherseal, sills silt up and stop draining, and the daily temperature swing works sealant joints harder than on the coast. Drainage design at the sill, quality of the perimeter sealant and correct integration with the wall's water-resistive barrier decide whether a window in Midland performs, and installation workmanship matters more than product selection.

Nearby regions and related trades

Other trades in Texas: Architect, Concrete, Electrical, Envelope, General Contracting, HVAC, Maintenance & Handyman, Mechanical, Plumbing, Renovation & Remodeling, Restoration, Roofing & Waterproofing.

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