Window Replacement & Installation

energy-efficient replacement windows for homeowners across Virginia — backed by a lifetime guarantee.

Types of Windows

From classic single-hung windows to expansive bay installations, Landmark offers every style a Virginia homeowner could need. Whether you’re upgrading for energy efficiency, improving curb appeal, or replacing aging units, our team helps you choose the right window for your home’s architecture, budget, and long-term performance — then installs it with precision.

double hung window installed by Landmark

Double Hung Windows

The most popular replacement choice — both sashes slide for easy cleaning from inside, with ventilation control that suits Virginia's year-round climate changes.

sliding window above a kitchen sink overlooking a backyard garden

Sliding Windows

Ideal for wide openings where a swinging sash won't work — glides smoothly on a track and maximises natural light without eating into your interior space.

casement windows installed in a bright open room with wide exterior views

Casement & Awning Windows

Casements crank fully open for maximum airflow, while awning styles stay open even in the rain — both seal tight against Virginia weather when closed.

large picture window in a white-framed room overlooking tall trees and a garden

Picture Windows

Fixed and frame-only for unobstructed views and maximum light — perfect for living rooms and any space where the scenery outside deserves to be the focus.

architectural arched window above double hung units on a brick home exterior

Architectural Shapes

Half-rounds, ovals, triangles, and custom configurations — the right finishing detail to give your home a look that standard window shapes simply can't deliver.

basement hopper window installed in a finished lower-level room interior

Basement Hopper Windows

Built for below-grade spaces — tilts inward for easy cleaning and controlled ventilation while keeping drafts and moisture out of your basement year-round.

bay window with three panels extending outward from a grey wood-sided home exterior

Bay & Bow Windows

Extend outward from your wall to add a dramatic focal point, more natural light, and genuine curb appeal and a sunny spot your pet will immediately claim.

garden window above a kitchen sink with potted plants and a backyard view

Garden Windows

A light-filled box that projects outward from your kitchen wall — perfect for growing herbs, catching sunlight from multiple angles, and brightening the room all year.

single hung window with white frame installed on a blue vinyl-sided house exterior

Single-Hung Windows

A clean, cost-effective replacement option — the lower sash opens for ventilation while the upper stays fixed, keeping the look simple and the maintenance minimal.

Not sure which window style suits your home? Our team is happy to help you get a free estimate and we'll walk you through every option.

Find The Perfect Fit For Your Home!

A Wide Range of Color Options

Your windows should complement your home, not just fill the opening. Choose from a wide selection of frame finishes from clean whites and neutrals to bold blacks and deep earth tones.

Smart Window and Door Technology

Our windows are built with multi-point locking, low-E glass, and argon-filled panes — working together to keep your home comfortable through Virginia's hot summers and cold winters.

Any Window Style You Need

Nine styles, every size made to measure, and all installed by Landmark's own team — whatever your home needs, the same lifetime guarantee sits behind every single one.

The Benefits Of New Windows and Doors

thermal camera showing heat loss through an old window before replacement

Reduce the Amount of Heat Transfer in Your Home

Old windows let heat in during summer and let warmth escape in winter — putting extra load on your HVAC and pushing up your energy bills. Landmark’s windows use advanced insulation and multi-pane glass to reduce heat transfer from day one, keeping your home comfortable year-round without making your heating and cooling system work harder than it needs to.

How Low-E Glass Coating Protects Your Home Year-Round

Landmark windows use Low-E (low-emissivity) glass coating to block the sun’s UV and infrared rays before they enter your home. This keeps rooms cooler in Virginia’s summers, reduces glare, and protects your flooring, furniture, and décor from sun fading — all while letting natural light through. In winter, the same coating reflects interior heat back into the room instead of letting it escape through the glass.

diagram showing how energy efficient windows reduce heat transfer and maintain comfortable indoor temperature