The Castilla Glass Blog

Everything glass, explained.

Straight answers about impact windows, frameless hinged and bypass shower doors, glass railings, mirrors and storefront glass across Miami-Dade, Broward and Palm Beach — from Castilla Glass, a third-generation family glass company.

State Certified Contractor 8 articles New every week
The articles

Read before you buy. Or before you call.

We publish what we explain on every estimate visit, so you can walk into any quote, ours included, knowing what to ask.

Clear Answers

Do You Actually Have Impact Windows? The Two-Minute Check

Most people in South Florida bought a house that was already built and were never handed a spec sheet. Here is how to find out what is in your own walls, with a flashlight and two minutes.

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Clear Answers

Three Questions to Ask Before You Buy a Glass Railing

Everybody shops the glass. The glass is the cheap part. What holds it up, and what that is bolted into, is the job. Ask these before anyone orders a panel.

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Clear Answers

Your Shower Door Is Leaking. It Is Almost Never the Glass.

Water on the bathroom floor and you are about to call someone to replace the glass. Don't, yet. Nine times out of ten it is one of three things you can check this weekend.

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Clear Answers

Clear, Ultra Clear or Frosted: Choosing Shower Glass

Every frameless hinged and bypass shower door we build starts with three decisions: which glass, how thick, and which finish on the hardware. Here is what each choice actually changes.

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Mirrors · Miami Beach

Mirror Walls for Miami Beach Gyms, Studios and Homes

How a full mirror wall is planned, cut and mounted, from seam placement and safety backing to what stops the black edge, for Miami Beach home gyms, dance studios and dining rooms.

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Impact windows & doors · Fort Lauderdale

Wind-Mitigation Inspections in Fort Lauderdale: What the Inspector Looks For on Your Windows

How the opening-protection section of a Florida wind-mitigation inspection works, what Fort Lauderdale homeowners can have ready, and why the label on the frame decides the outcome.

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Shower doors · Miami Beach

Frameless Shower Doors in Miami Beach: Hinged or Bypass?

The two frameless styles we build for Miami Beach bathrooms, how to tell which one your opening wants, and the glass, thickness and hardware finish choices that come with it.

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Glass railings · Kendall

Glass Railings in Kendall: Height, Gap, Glass and Anchor

The four things that decide whether a glass railing in Kendall passes inspection and lasts: required height, the four-inch sphere rule, tempered versus laminated, and what it is anchored into.

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Clear Answers · the cards

Swipe through the myths we hear on every visit, what's actually inside impact glass, and the five signs a window is failing.

Clear Answers: straight answers about glass, windows and railings from a 3rd-generation South Florida glass family
Myth: impact windows are just thick glass. Fact: they are two panes bonded to a plastic interlayer that holds the opening together on impact
Myth: all safety glass is impact glass. Fact: safety glass breaks safe, impact glass doesn't break through. Two different ratings
Myth: hurricane shutters are just as good. Fact: only if you're home to put them up. Impact glass protects the opening whether you're there or not
Myth: a cracked window can be repaired. Fact: it can't, it gets replaced. Once the seal or pane is compromised the structural rating is gone
What's actually in impact glass: outer glass ply, PVB or SGP interlayer, inner glass ply, structural silicone glazing bead, frame section
What makes a slider seal: panel, interlock, track and rollers. Precision rollers and a tight interlock keep wind and rain outside
Inside a frameless shower door: glass panel, hinge, wall anchor, sweep and curb slope. The curb slope and sweep keep water inside
How a glass railing holds: laminated glass panel, interlayer, base shoe or spigot, embed depth, anchored into concrete
5 signs your windows are failing
Sign 1: fog between the panes. The seal on the insulated unit has failed and moisture is inside. The unit gets replaced
Sign 4: soft wood at the sill. Water is already getting past the frame and into the structure
Sign 5: no label, no etch. Without a manufacturer stamp in the glass corner and an approval label on the frame you almost certainly do not have impact protection

Not sure what you have? Send a photo.

We'll tell you what you're looking at, no charge and no pitch. When it needs a licensed crew, the on-site measure is free and you hear back within 24 hours.

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Family owned & operated◆ 35+ years experience◆ Established 1991◆ 3rd generation
(786) 393-3859