Custom Windows Austin
Pella Rookie of the Year 2025 • Austin’s Only Certified RAM Installer
Not every window fits a standard opening, and not every homeowner wants a standard look. Custom windows let you match the exact shape, size, and style your home requires — whether that means an arched transom above a front door, a corner window that wraps a Hill Country view, or a floor-to-ceiling fixed pane that turns a wall into a picture frame.
Old Soul Windows & Doors designs and installs custom windows throughout Austin from manufacturers who build to your specifications, not to a catalog.
What Counts as a Custom Window?
A custom window is any unit manufactured to non-standard dimensions, shapes, or configurations. This includes specialty geometric shapes, oversized units, unusual aspect ratios, and multi-unit combinations that function as a single architectural element.
The most common custom windows we install in Austin:
- Arch and round top windows. Half-circle or elliptical windows installed above doors, standard windows, or as standalone accents. Popular in Mediterranean, Tuscan, and traditional Texas Hill Country architecture.
- Corner windows. Two fixed panes that meet at a 90-degree corner without a post, creating an uninterrupted panoramic view. Common in modern and contemporary homes overlooking Lake Travis or the Hill Country.
- Picture windows. Oversized fixed panes — often 6 feet wide or larger — designed purely for light and view. No operating hardware, no mullions, just glass.
- Specialty shapes. Triangles, trapezoids, octagons, half-moons, and any geometric shape your architect draws. These are typically fixed units used as design accents.
- Combination units. Multiple window types joined into a single frame — for example, a large picture window flanked by two casements, topped with an arched transom. These are engineered and manufactured as one integrated system.
If you can sketch it, we can build it. We work with Pella, Marvin, RAM, and NT Windows to source custom units in virtually any material, finish, and glass configuration.
How Much Do Custom Windows Cost in Austin?
Custom windows cost more than standard catalog sizes because they are manufactured to order. Here are realistic ranges:
- Custom-sized standard shapes (non-catalog dimensions): 20 to 40 percent more than the catalog equivalent.
- Arch and round top windows: $800 to $3,000+ per unit installed, depending on size and frame material.
- Corner window systems: $3,000 to $8,000+ installed, depending on span and glass type.
- Large picture windows (6 ft+ wide): $1,500 to $5,000+ installed.
- Complex specialty shapes: $1,000 to $4,000+ per unit. Pricing varies widely based on geometry and glass requirements.
Lead times for custom windows run 6 to 10 weeks — longer than standard sizes. We factor this into your project timeline from day one so there are no delays once installation begins.
When Does a Custom Window Make Sense?
Custom windows make sense in three situations:
Your opening is non-standard. Older Austin homes — especially those built in the 1970s through 1990s — often have window openings that do not match today’s standard sizes. Rather than reframing the opening to fit a catalog window (which adds cost and changes the look), a custom-sized unit drops into the existing rough opening for a clean, precise fit.
Your home has architectural character worth preserving. If your house has arched windows, decorative transoms, or distinctive shapes that define its style, replacing them with standard rectangles destroys the character. Custom replacements match the original geometry while upgrading the glass, frame, and insulation to modern standards.
You want something your neighbors do not have. A wall of glass overlooking a backyard. A corner window that wraps around a reading nook. A geometric accent above a staircase. Custom windows let you design the light and view experience you want, not the one a manufacturer decided to mass-produce.
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How Do We Handle Custom Window Projects?
Custom window projects require more precision upfront than standard replacements. Our process accounts for that:
We visit your home, measure the openings, discuss your goals, and photograph the existing conditions. For complex shapes, we create templates on-site.
We present options from multiple manufacturers — material, glass type, hardware, finish — and recommend the best fit for your project and budget. You see samples and make selections in person.
Your specifications go to the manufacturer for engineering review. We confirm dimensions, structural requirements, and lead times before production begins.
Our crew removes the existing windows, prepares the openings, and installs the custom units with full weatherproofing, trim, and finish work.
We inspect every unit with you, confirm operation on any operable windows, and ensure the finish meets your expectations.
Which Brands Build Custom Windows?
Not every manufacturer handles custom work well. We partner with brands that have dedicated custom programs:
- Marvin: The industry leader in custom and architectural windows. Wood interiors, aluminum-clad exteriors, virtually unlimited shapes and sizes.
- Pella: Strong custom program with shorter lead times than most competitors. Excellent for custom-sized standard shapes.
- RAM: Texas-built with flexible manufacturing. Great value for oversized and non-standard units.
- NT Windows: Regional manufacturer with responsive custom capabilities and competitive pricing.
We are brand-agnostic — we recommend the manufacturer that builds the best product for your specific project.
Ready to enhance your view?
Tell us what’s going on with your home. Call Old Soul Windows & Doors at (512) 790-8777 or fill out our contact form — we’ll get back to you within 24 hours with next steps. No pressure, no obligation. Just honest answers from a team that shows up and follows through.