Custom Window Installation
Some homes need more than a standard window off the shelf. KRC Roofing & Siding designs and installs custom windows made to fit your home’s exact openings, architecture, and style, sealed and finished by exterior specialists.
Schedule a Free Custom Window Consultation
Windows Made for Your Home, Not Just Any Home
Older homes, unique architecture, and custom-built houses often have window openings that don’t match standard sizes. Forcing in a stock window usually means oversized trim, filler pieces, lost glass area, or a look that just doesn’t fit. And sometimes you want something special: a bay window for a reading nook, a wall of glass to frame the view, or an arched window that becomes the focal point of your home.
At KRC Roofing & Siding, we help you choose and install custom windows built to your exact measurements and style. From the first measurement to the final trim, we make sure every window fits perfectly, operates smoothly, and is sealed tight against Iowa weather.
Deck Designs We Build
Bay Windows
Three angled windows that project outward, adding light, space, and a cozy nook or window seat.
Bow Windows
A gentle curve of four or more windows that creates a panoramic view and a graceful exterior look.
Picture Windows
Large fixed windows that frame the view and fill a room with natural light.
Arched and Circle-Top Windows
Classic curved shapes that add architectural character above doors and windows.
Geometric and Specialty Shapes
Triangles, trapezoids, octagons, and other shapes for gables, vaulted ceilings, and modern designs.
Casement and Awning Windows
Crank-out windows that seal tightly and provide great ventilation, available in custom sizes.
Window Combinations and Mulled Units
Multiple windows joined together to create a wall of light or a custom configuration.
Garden Windows
A small box window that extends outward, perfect over a kitchen sink for plants and herbs.
Precision Installation That Lasts
A custom window is only as good as its installation. On every project we:
- Measure precisely, so each window fits the opening exactly.
- Inspect the opening for rot or water damage and repair it before installation.
- Install sill pans and flashing to direct water out, not in.
- Insulate and seal around the frame to stop drafts and air leaks.
- Support projecting windows like bays and bows with proper structural support and roofing above.
- Finish the trim inside and out for a clean, polished look.
Our Custom Window Process
In-Home Consultation
We look at your openings, talk about your style and goals, and show you options.
Precise Measurement
We take exact measurements of every opening.
Design and Estimate
We finalize styles, materials, colors, and options, and provide itemized pricing.
Ordering and Scheduling
Custom windows are made to order. We’ll give you a clear timeline and schedule your installation.
Installation
We remove the old windows, prep and repair the openings, install, flash, seal, and trim.
Final Walkthrough and Cleanup
We check the operation of every window and leave your home clean.
Custom Window FAQs
How much do custom windows cost?
The price depends on the size, shape, style, frame material, glass options, and whether the opening needs to be modified. Specialty shapes and bay or bow windows cost more than standard units. We provide a free, itemized estimate.
How long does it take to get custom windows?
Because they’re made to order, custom windows typically take several weeks to manufacture before installation. We’ll give you a realistic timeline when you order.
Can you install a bay or bow window where I have a flat window now?
Yes. We can replace an existing flat window with a bay or bow window, including the framing, support, roof cap, and siding work needed to finish it properly.
Can you make a window opening bigger?
Often, yes. We’ll check the wall framing and, if the wall is load-bearing, install the proper header. Then we install the new window and patch the siding and interior finishes.
Do custom windows fit older homes?
That’s one of their biggest advantages. Custom windows are built to your exact openings, so they fit properly without bulky filler pieces and can match your home’s original character.
Are custom windows energy efficient?
They can be. Custom windows are available with the same energy-efficient glass and frame options as standard windows. Learn more about our energy-efficient windows.
Will installing new windows damage my siding?
Not with us. As a siding contractor, we protect, patch, or replace the siding around each window as needed, so your exterior looks clean and stays watertight.
Let's Design Windows That Fit Your Home
Call (563) 217-5193 or schedule your free custom window consultation today.