Window & Door Replacement Lilburn, GA

Serving Lilburn & Gwinnett County

Lilburn’s Window & Door Replacement Contractor

Lilburn's neighborhoods took shape mainly in the 1970s and 1980s, on wooded lots around Old Town and out toward the Yellow River. They are solid homes, but many still wear windows from that era: single-pane aluminum or early double-pane units with failed seals.

We replace them with factory-direct Vytex windows after a free measure visit, with a firm written quote and an install handled by a Georgia-licensed crew supervised by A1.

We work across Lilburn, including Old Town Lilburn, Lilburn City Park, Yellow River Park area, Lawrenceville Highway corridor and Killian Hill Road area.

ENERGY STAR certified Vytex Limited Lifetime warranty Factory-direct pricing

Is It Time?

Does Your Lilburn Home Need New Windows?

Drafts you can feel

Air moving around the sash or frame on a cold or windy day means the seals and weatherstripping have worn out.

Fog between the panes

Moisture inside the glass means the insulated seal has failed and the gas fill is gone.

Sashes that stick or drop

Windows that won't open, won't stay up or won't lock usually have worn balances or warped frames.

Rooms that run hot or cold

Upstairs bedrooms that never match the thermostat are often losing the fight through old glass.

Outside noise

Road and neighborhood noise that carries indoors drops noticeably with tight, insulated windows.

Soft or rotting frames

Peeling paint, soft wood or crumbling sills mean water has been getting in for a while.

Seeing two or more? Book a free measure visit and we’ll tell you honestly which windows need replacing in your Lilburn home and which can wait.

Local Homes

Lilburn Homes: Matching Style With Performance

Split-levels and ranches dominate, with picture windows in the living rooms, sliders on the lower levels and double hung windows on the upper floors. Many have been renovated inside, which makes the old windows stand out. Sliders and picture windows replace like for like, and double hung units add tilt-in cleaning upstairs.

Slider windows

A like-for-like fit for split-level lower floors.

See slider windows

Picture windows

Refreshes the living-room picture window.

See picture windows

Double Hung windows

Tilt-in cleaning for upper-floor bedrooms.

See double hung windows

What We Install

Windows & Doors for Lilburn Homes

Double Hung

Two independently sliding sashes let you open from the top, the bottom, or both at once. Both tilt inward for easy interior cleaning — no ladder needed. The most common window replacement in metro Atlanta.

Tilt-in cleaning Top & bottom vent ENERGY STAR rated

Explore Double Hung Design it in 3-D

Best Ventilation

Casement

Side-hinged and crank-operated, casements open completely for maximum airflow. When closed, the sash presses firmly against the frame for one of the best weatherseals in the industry.

Full-width opening Crank operation Tight weatherseal

Explore Casement Design it in 3-D

Space-Saving

Slider

Sashes glide horizontally on a track — no swing clearance required inside or out. Wide glass area delivers broad views and generous ventilation with a minimal frame profile.

No swing clearance Easy operation Wide glass area

Explore Slider Design it in 3-D

Maximum Light

Picture

A fixed pane with no moving parts, so the frame stays slim and the glass area is as large as possible. Pair one with operable windows on either side for a wall of light with ventilation exactly where you want it.

Largest glass area No moving parts Pairs with any style

Explore Picture Design it in 3-D

All-Weather

Awning

Hinged at the top and opening outward, awning windows let you ventilate even during light rain. Popular in basements and over kitchen sinks where other styles can't open safely.

Rain-proof ventilation Basement-friendly Low-profile

Explore Awning Design it in 3-D

Bay — 3-D render of the Vytex model A1 installs in Greater Atlanta

Statement Window

Bay

Three panels set at fixed angles project outward from the wall, creating panoramic views and a deep interior shelf or window seat. A statement piece for living rooms, kitchens, and dining nooks.

Adds interior space Panoramic views Custom angles

Explore Bay Design it in 3-D

Bow — 3-D render of the Vytex model A1 installs in Greater Atlanta

Panoramic Views

Bow

Four or more panels arranged in a gentle outward arc — a more subtle curve than a bay window. Creates a dramatic effect that floods the room with light and expands the interior visual space.

Gentle curve 4–6 panels Maximum light

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Kitchen Favorite

Garden

A small greenhouse that projects out from the kitchen wall, with a glass top and sides that bathe herbs and plants in sunlight. Side vents open for fresh air while the glass shelf doubles as extra counter space.

Glass shelf Side ventilation Perfect over the sink

Explore Garden Design it in 3-D

Arched & Shapes

Round Top

An arched top brings a classic, elegant shape to an entryway or the top of a double hung. Available as a fixed accent or paired with operable units below, in half-round, quarter-round, and eyebrow profiles.

Half-round & eyebrow Fixed or paired Classic curb appeal

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Custom Shapes

Specialty

Round tops, geometric shapes, transoms, and custom configurations that standard windows can't match. Ideal as accent windows above entry doors or in gable ends where only a unique shape will do.

Unlimited shapes Accent windows Custom sizing

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First Impression

Entry Doors

Steel and fiberglass entry doors with insulated cores and multi-point locking, built to shrug off Georgia humidity. Choose woodgrain finishes, decorative glass, and sidelite layouts to match your home.

Steel & fiberglass Multi-point locking Decorative glass

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Indoor-Outdoor Living

Patio Doors

Wide glass panels connect your living space to the deck or backyard while sealing out summer heat and humidity. Available in sliding or hinged configurations with low-profile sills.

Wide glass panels Smooth operation Low-profile sill

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Classic Elegance

French Doors

Two hinged doors that swing open together for a grand, full-width opening onto the patio. Traditional styling paired with modern multi-point locks and ENERGY STAR glass.

Full-width opening Traditional style ENERGY STAR glass

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Wide Openings

Sliding Doors

Two or three glass panels on a track, up to 8 ft wide per pair, with one panel gliding past the other. The most glass and the most light you can put in a wall without a swing.

Up to 8 ft wide Multi-point lock Blinds between glass

Explore Sliding Doors Design it in 3-D

Why Lilburn Homeowners Choose A1

The A1 Windows Difference

Local and owner-supervised

Our office is on Roswell Rd in Marietta. The team that measures your Lilburn home is the team you call afterward, not a national call center.

Factory-direct Vytex pricing

We buy windows direct from Vytex, so a whole-house project costs far less than the same quality through a showroom retailer.

Two warranties, named separately

Vytex's Limited Lifetime warranty on the windows, plus A1's 2-Year Workmanship warranty on the installation, both in writing.

Built for Georgia

Energy Efficiency for Lilburn’s Climate

Georgia’s long, humid summers make solar heat the biggest energy drain in most homes, and our winters still bring cold snaps that find every gap. The Vytex windows we install pair Low-E coatings with argon gas fill and warm-edge spacers, so less heat gets in during summer and less escapes in winter.

Older Lilburn homes lose the most heat through aluminum frames; insulated vinyl frames stop that heat transfer at the edge.

Low-E glass

Turns back solar heat and UV while letting daylight through.

Argon fill

Insulating gas between the panes slows heat flow.

Warm-edge spacers

Keep the edge of the glass warmer and drier in winter.

Triple-pane option

More insulation and quiet where you want it.

Doors Too