When the Opening Doesn't Fit the Catalog: Custom Brackets for a Castle Hills Screen Install

Audie Builds — July 6, 2026

Most retractable screens go in the way the catalog drew them: a standard opening, a standard mount, done in an afternoon. This Castle Hills project, in the estate neighborhoods next to The Colony, was not that job. One opening wanted a large Mirage 3500 French set. The other was a doorway taller than the 1750's standard mounting allows.

The easy answers are the ones homeowners hear all the time: pick a different door, accept an ugly filler strip, or hear a contractor say it can't be done. We took the fourth option, the one that comes from having fabrication resources on call: measure the gap, engineer the part, powder-coat it to match, and install it so you can't tell it wasn't factory.

At a glance

• Project: Two-opening retractable screen install
• Location: Castle Hills, near The Colony, TX
• Systems: Mirage 3500 French set + Mirage 1750
• Challenge: Doorway taller than the 1750's standard mounting height
• Fabrication: Custom aluminum header angle + cassette base brackets
• Finish: Powder-coated, color-matched to Midnight Black frames
• Anchoring: Bases drilled and fastened to the concrete with Tapcon anchors

The problem: a doorway the catalog doesn't cover

The Mirage 1750 is a workhorse door screen, but like every manufactured product it's built around standard opening sizes. This doorway ran taller than the 1750's mounting system is designed to carry, which left a gap up top: nothing solid for the cassette and track to land on at the height the screen actually needed to sit.

That gap is where a lot of screen installs die. A kit installer has two moves, and both of them are wrong for a home like this: force a stock part where it doesn't belong, or tell the homeowner no.

The fix: a fabricated header angle, coated to disappear

We had a custom aluminum angle fabricated to integrate into the header, sized to close the height gap exactly so the 1750 could mount properly up top. Then it went through the powder-coat booth in the same Midnight Black the client chose for the screen frames.

That color match is the whole point. A raw or mismatched filler reads as a patch; a powder-coated angle in the frame color reads as factory. Once the screen was mounted, the fabricated piece disappeared into the install. Parts like this get made when a project needs them, through our own fabrication resources and team, and they're engineered per opening rather than pulled from a shelf.

The base: encased cassettes, anchored to concrete

The same thinking went into the bottom of the install. We fabricated base brackets that encase the cassettes and act as a solid footer, then drilled and fastened them to the concrete with Tapcon anchors. A screen base that just sits on the slab works loose over years of pulls; one that's mechanically anchored into the concrete doesn't move.

The photos show the brackets set in place during the install, box of Tapcons at the ready, before everything was fastened down and the screens went in.

The result: two very different openings, one seamless patio

The finished patio runs the Mirage 3500 as a French set on the large opening, with two screens that pull together and meet in the middle, and the custom-bracketed 1750 on the tall doorway, all in matching Midnight Black with the pool view intact from inside the mesh.

This is the honest difference between a screen dealer and a screen contractor. We're the authorized dealer for four brands, and most openings in Dallas-Fort Worth take a catalog solution. But when your opening doesn't fit the book, we'd rather fabricate the missing part than lower the standard of the install. If you've been told your doorway or patio can't take a retractable screen, it's worth a second opinion from our screens team.

Frequently asked questions

Can you install a retractable screen on an opening that's taller than standard?

Usually, yes. When an opening runs past a screen model's standard mounting height, we can fabricate a custom aluminum header angle that closes the gap and gives the cassette and track solid structure to mount to, powder-coated to match the frame color so it reads as factory.

Will a custom bracket look like an add-on?

Not when it's done right. The brackets are fabricated from aluminum and powder-coated in the same color as the screen frames, so once the screen is mounted the custom parts blend into the install. On this project the client chose Midnight Black and the fabricated pieces were coated to match exactly.

How do you anchor screen bases to a concrete patio?

We fabricate base brackets that encase the cassettes and act as a footer, then drill and fasten them to the concrete with Tapcon masonry anchors. That mechanical connection keeps the base from working loose over years of daily use.

Does custom fabrication add a lot of time or cost?

It adds some of both, and we quote it up front per opening. Because the fabrication happens through our own resources and team, the part is engineered for your exact gap rather than special-ordered from a factory, which keeps the timeline reasonable. Most projects only need it on one opening, like this one.