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Replacement Window Company in San Antonio, TX
High-performance windows built for South Texas
Make hot rooms cooler, street noise quieter and your home more comfortable with custom-built windows installed by our local, in-house team.
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Compare every style before you schedule.
Real product visuals make it easier to choose the operation, view and architectural look that fits your home.
Double Hung
Classic style with two easy-clean operating sashes.
Double Slider
Wide views and smooth horizontal operation.
Casement
A tight seal with full ventilation and modern lines.
Awning
Top-hinged ventilation that works well in compact spaces.
Picture
Uninterrupted views and maximum natural light.
Garden
A bright dimensional space for plants and kitchen views.
Single Hung
Simple, efficient operation with classic curb appeal.
Specialty Shapes
Custom architectural shapes for unique openings.
Vinyl
Low-maintenance frames with strong insulation and flexible finish options.
See why local families recommend The Window Source for clear communication, professional installation and windows they are proud to show.
Read Customer StoriesStart with how each room needs to open.
Some rooms want a breeze, some want a view, and some just need a sash that stays shut and sealed. We help you match crank, slide, tilt or fixed glass to each opening, then measure every one so it fits.
Match the way it opens
Hung, slider, casement and awning sashes each move differently, so we weigh reach, airflow and furniture for each wall.
Fixed glass where it fits
Picture and specialty shapes give up ventilation in exchange for the widest view and the most daylight per opening.
Measured one by one
Every window is custom-measured in your home, so a mix of styles still lines up neatly along the same wall.
One warranty for the mix
Whichever combination you settle on, each window is covered by our transferable double lifetime warranty.
Which rooms are you thinking about first?
List a few rooms and what bothers you about them, and we will suggest styles that suit.
From first question to final walkthrough.
You always know what comes next and who is responsible.
Tell us what you want to improve
A short conversation helps us understand comfort, style and budget.
Get a precise home assessment
We measure each opening and show clear product and financing options.
Your in-house team installs
Certified installers protect your home, fit every unit and clean the work area.
We stay available after the job
Local service and transferable warranty protection provide long-term peace of mind.
Clear answers before anyone visits your home.
Still deciding? Call a local project specialist and get a straight answer without starting a sales appointment.
(210) 796-9574The main types of replacement windows are double hung, single hung, sliders, casements, awnings, picture windows, garden windows and specialty shapes. They differ in how they open: hung sashes slide up and down, sliders move sideways, casements and awnings swing out on hinges, and picture windows stay fixed. The right type depends on the room, ventilation needs and the view.
There is no single average, because replacement window cost depends on style, size, frame material, glass package and installation conditions. Operable styles such as casements usually cost more than fixed picture windows of a similar size, and custom shapes cost more than standard rectangles. Comparing quotes on the same glass package and installation scope gives the most accurate picture.
The best replacement windows for the money are well-built vinyl windows with a glass package matched to your climate and a tight, sealed installation. In San Antonio, Low-E glass that blocks solar heat matters more than extra features. Paying for the right glass and a precise fit usually delivers more comfort than paying for a premium style you do not need.
Fixed picture windows are generally the most energy-efficient style because they have no moving sashes where air can leak, followed by casement and awning windows, which press against the frame when closed. Sliding and hung styles also perform well with good weatherstripping. In every style, the glass package and installation quality matter as much as the way the window opens.
Your windows likely need replacing if you feel drafts, see fog or condensation between the panes, notice sashes that stick or will not stay open, or find soft, cracked or warped frames. Rooms that stay hot in summer while the air conditioning runs constantly are another sign. Replacement makes the most sense when several of these problems show up across the house.
Not always. An insert replacement fits a new window into the existing frame when that frame is solid and square, which limits disruption to walls and trim. A full-frame replacement removes the old frame down to the rough opening and is used when there is rot, damage or a size change. Our San Antonio team inspects each opening to recommend the right method.
See what new energy-efficient replacement windows would do for every room.
We bring samples of each style to your home, open and close them with you, and size up every opening so the mix you choose fits exactly.
Tell us how many windows need replacing.
Give us a rough window count and the rooms involved, and we will bring samples of the styles that fit.