
Add Doors to an Open Archway — Fill-In Installation in Colorado
Turn an open doorway or archway into a real room. We add single doors, double doors, French doors, or barn doors to existing openings — and handle the framing and drywall when the opening needs resizing.
No high-pressure sales. No surprise fees. Just honest, upfront pricing.
Doors Installed
Experience
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Why fill in an opening?
A door where there wasn't one — privacy, quiet, and a more useful home.
Privacy on Demand
Close off a home office, den, or guest room that's currently open to the rest of the house.
Quiet a Noisy Room
A solid door turns an open archway into a space you can actually concentrate — or sleep — in.
Define the Space
Give a flex room, dining room, or playroom a clear purpose and a finished look.
Add Resale Value
Buyers count doors and rooms. Converting an opening into a closeable room can add usable room count.
What we can fill in
Pick the door style — we make it fit the opening.
Single Door Fill-In
One door added to a standard opening.
Starting around $2,000, installed.
Double Doors Fill-In
Two doors meeting in the middle for wide openings.
Starting around $2,000, installed — final price depends on the framing and drywall the opening needs and the doors you choose.
French / Glass Doors
Glass-panel doors that close the room off while keeping the light.
Request a quote.
Barn Door Over an Opening
A sliding barn door mounted over the opening — no framing required in most cases.
See barn doors →Framing and drywall are included when the opening needs resizing to fit a standard door. We tell you the all-in number up front.
We handle the framing, too
Most door companies only swap a door into an opening that's already the right size. If your archway is too wide, too tall, or unfinished, we frame it down, hang the door, patch the drywall, and finish the trim — one crew, one price, one day. No drywall contractor, no second trip.
See the Transformation
Real archway-to-door conversions from Colorado homes. Drag the slider to reveal the before and after.




How It Works
Three simple steps to a brand-new room.
Snap a Few Photos
Photograph the opening from your phone — no measuring tape required.
Get an Instant Quote
See upfront pricing in about 90 seconds. We confirm framing details after a quick office review.
Schedule Your Install
Pick a date. Our crew frames, hangs, finishes, and cleans up — usually in a single day.
5.0 on Google
What Colorado homeowners are saying.
I highly recommend the Colorado Door Store! Jason was great to work with, friendly, dependable, did a fantastic job on two large door and trim installs, and provided competitive pricing. Five stars all around!
Repeat customer. I met Jason over 10 years ago when he installed new doors at my home. His work is top notch. My home is older and not standard, and Jason was creative and put on a beautiful new door for me. I trust him completely.
Jason is the best! Seams are perfect inside and out. You can hardly tell he was in our house, his prep and cleanup were impeccable.
Proudly Serving Colorado
Fill-in door installation across the Front Range. Tap your city to get started.
Frequently Asked Questions
Ready to close off that opening?
Get your upfront price in about 90 seconds — no high-pressure sales, no surprise fees.
Fill-ins are one of several interior door types we install — see all interior door options