Vinyl
Cost-effective, energy-efficient, and the volume choice for most replacement projects. Modern vinyl frames offer Low-E argon glass, multiple grille profiles, and HOA-compliant color matches — without the premium of clad-wood.
— Windows
Replacement windows that look right, perform right, and survive Texas weather.
The right window does three jobs at once: it keeps your home quiet and efficient, it clears HOA architectural review, and it looks like it belongs on your house. We install replacement windows matched to each — not packages pulled from a warehouse.
Knox Roofing is trusted by DFW homeowners and custom home builders for window work that integrates with the rest of the exterior envelope — flashing, headers, and trim detailed by the same team that handles the roof.
Get a Free Estimate— Frame Materials
The three frame materials Knox installs most often. The right choice usually comes down to wall orientation, target energy rating, and whether a wood interior is part of the architectural intent.
Cost-effective, energy-efficient, and the volume choice for most replacement projects. Modern vinyl frames offer Low-E argon glass, multiple grille profiles, and HOA-compliant color matches — without the premium of clad-wood.
The thermal-performance leader. Fiberglass frames expand and contract at nearly the same rate as the glass they hold, which means tighter long-term seals, less drafting, and the strongest energy ratings of the three. Worth the premium on west-facing walls and high-end remodels.
The custom-home standard. Real wood interior for warmth and traditional millwork detail; aluminum exterior cladding for weather resistance and low maintenance. The right call for Highland Park, Preston Hollow, and architecturally specific renovations.
Single
Double / French
Push-Out
Push-Out French
Top-Hinged
Cottage-Style
In-Swing
— What makes Knox windows different
Energy efficiency, HOA compliance, and proper envelope detailing — not just glass in a hole.
Low-E coatings, argon fill, and thermal-break frames that measurably lower DFW cooling costs.
Class 4 impact-rated glass for hail-prone DFW — and peace of mind during severe weather.
Profiles, grilles, and colors that pass architectural review in Highland Park, Preston Hollow, and University Park.
Windows are only as good as their install. We flash, tape, and trim so water goes where it should.
Request a no-pressure consultation. We'll measure, advise, and quote — even if the answer turns out to be 'repair, don't replace.'
Schedule Free InspectionFour steps, one team, no handoffs.
On-site fit, existing frame condition, and HOA-compliance review.
Glass package, frame material, grille pattern, and color — with a detailed written quote.
Old window out, new unit flashed and installed, trim and caulk detailed by hand.
Operation check, warranty registration, and a follow-up inspection at six months.
Depends on style, budget, and HOA. Vinyl is cost-effective and efficient; fiberglass offers the best thermal performance and strength; aluminum-clad wood is the premium look for custom homes.
Yes — typically 10–25% savings on cooling in DFW when you go from single-pane or older double-pane to a modern Low-E argon package.
Almost always. Profile, grille pattern, and color can all be matched to existing windows — important for homes where you're only replacing a portion.
We'll provide the technical spec, product photos, and compliance documentation you need to submit to your architectural review committee.
— Your next roof starts with a phone call
Free inspection, written scope, no pressure. A Founder-led walk-through of exactly what your roof needs — and what it doesn’t.
— What homeowners say
Live feed of recent Google reviews from DFW homeowners and builders we’ve worked with.