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Front Door Sidelight Glass Cracked — Replace the Glass, Keep the Door

A rock or a slammed storm door cracked the glass beside the front door, or it has fogged between the panes. The door is fine and should stay.

When the front door sidelight glass is cracked or fogged, JMB Builders replaces just the glass, keeping the door. Most sidelites hold the glass in a screwed-on frame insert, like a door lite, so the insert or glass unit is swapped from the outside. Tempered safety glass goes back in. Across the Twin Cities, priced per opening, quoted from photos within one business day.

  • Priced per opening
  • Glass or insert only, door stays
  • Tempered safety glass
  • Licensed MN contractor BC809005
Installer working on an exterior door

A sidelite is a narrow glass panel beside the entry door. On most steel and fiberglass entries it is a panel in the same frame as the door, with the glass set in a frame insert held by screws from one side and trim rings on the other, just like a door lite. That means the glass can be replaced without touching the door: the insert comes out, a new insert or glass unit goes in with new sealant, and the trim ring goes back on.

Some older doors and wood units have the glass glazed into the sidelite with stops, and some sidelites are separate units mulled to the door frame. Those are still glass jobs; they just come apart differently. What we check first is the sidelite panel itself. If it is rotted at the bottom or the frame is split, glass alone does not fix it, and the sidelite or the whole entry unit gets replaced.

Glass next to a door is required to be safety glass, so the replacement is tempered or laminated. Decorative glass is matched as close as the maker's inserts allow; if the pattern is no longer made, both sidelites can be changed so they match each other.

What you supply

  • Photos of the sidelite inside and out, and a close-up of the crack or fog
  • The door brand if you know it, or a photo of any label on the hinge edge
  • Your choice of glass: clear, privacy or decorative
  • An insert you already ordered, if you did

What JMB supplies

  • Measurement of the insert or glass unit and ordering it to size
  • Removal of the cracked insert or glass and cleanup of the broken glass
  • New tempered or laminated glass unit or frame insert set in fresh sealant
  • Trim rings, stops and screws reset
  • A check of the sidelite panel and sill for rot, quoted before we order
  • Temporary cover over a broken sidelite until the glass arrives

How it is priced: per opening

Quoted in writing from your photos within one business day. What moves the number:

  • Clear glass unit vs. decorative or privacy glass
  • Screwed-in frame insert vs. glass glazed in with stops
  • One sidelite vs. matching both sides
  • Rot in the sidelite panel or sill
  • Whether the pattern is still made

Send a photo of the whole door and sidelites and a tape measure across the glass inside.

How long it takes

Most glass is ordered to size, so the wait is the order. Swapping the insert or glass takes an hour or two per sidelite.

How your project works

  1. 1

    Send photos, get a written quote

    Send three photos of the space and a sentence about what you want. You get a clear, itemized quote within one business day. We only come out to measure first when the job needs a tape measure — no pressure, no games.

  2. 2

    Pick materials, or bring your own

    We help you choose profiles and materials that fit the house and the budget, or match your existing millwork exactly — or you buy the door or trim yourself and we install it. Everything is confirmed before the crew is scheduled.

  3. 3

    Clean, precise installation

    The crew shows up on time, protects floors and furniture, and installs with tight joints and consistent reveals. Photos of the finished work go in your job folder.

  4. 4

    Walkthrough and invoice

    We walk the finished work with you. If anything is not right, we fix it before we call the job done. Then one invoice, paid by check or direct deposit — no card fees, no payment links.

Front Door Sidelight Glass Cracked — Replace the Glass, Keep the Door: questions, answered

Can I replace just the cracked sidelight glass and keep my front door?

Yes, in most cases. The glass in most sidelites sits in a frame insert held by screws and trim rings, so it comes out without touching the door. A new insert or glass unit goes in with fresh sealant.

Does sidelight glass have to be tempered?

Yes. Glass next to a door is a safety-glass location, so the replacement is tempered or laminated. Most sidelite inserts are already made that way.

Can you fix a fogged sidelight?

Yes. A fogged sidelite has a failed seal between the panes, and the fix is the same as a crack: a new glass unit or insert. Cleaning between the panes does not last.

What if I can't find matching decorative glass?

Many decorative patterns are made for years, and the maker's insert is the closest match. If yours is no longer made, replacing both sidelites, or the sidelites and the door lite, keeps them matching.

When does the whole sidelite need to be replaced instead of the glass?

When the sidelite panel is rotted at the bottom, the frame is split, or it leaks at the sill. Glass alone does not fix water getting into the panel. Then the sidelite or the whole entry unit is replaced.

What do I do with a broken sidelight until the glass comes?

Cover it from the outside with clear plastic or plywood screwed to the trim, not the door. We can put a temporary cover on at the first visit when the glass has to be ordered.

Recent JMB work, from our job log

59 installs recorded across 30 Twin Cities communities since Dec 2025. Window and door installs for homeowners and for the builders and dealers we sub for. Counts come straight from our job log; no customer names.

Get a written quote for this job

Three photos and a sentence is enough. You hear back within one business day. Or text the photos to 763-204-2099.

Free quote from your photos in one business day · No obligation · Licensed contractor

Photos (up to 3 — the fastest way to a price)

One wide shot of the room or wall, one close-up of the trim or opening, one of anything you're unsure about.

Related jobs we do

Page reviewed September 26, 2026 · JMB Builders LLC, MN license BC809005 · All doors pages

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