Laminated Glass Replacement Windows for Security on the Ground Floor
A window is the easy way into a house. You want the ground-floor and walkout windows to be the hard way, without turning the place into a bunker.
Reply within one business day. Or call / text 763-204-2099.
Laminated glass replacement windows for security use two panes bonded to a tough plastic interlayer, so the glass cracks but stays in the frame instead of falling out. On a Minnesota house we order them for ground-floor bedrooms, the walkout level, and any window within reach of a door lock, in frames with multipoint locks and reinforced keepers. JMB Builders supplies and installs them across the Twin Cities, priced per window. Send photos and we reply within one business day.
- Laminated glass stays in the frame when it breaks
- Ground floor, walkout and door-side windows first
- Priced per window, windows supplied
Ordinary insulated glass breaks with one hit and leaves an open hole. Tempered glass breaks into small cubes and also leaves an open hole; it is a safety glass, not a security glass. Laminated glass is different. Two panes are bonded to an interlayer, the same construction as a car windshield, so a hit cracks the glass but the sheet stays in the sash. Getting through it takes repeated blows and time and noise, which is what deters most break-ins.
Laminated glass is a per-window option on most replacement lines, usually as the inside pane of the insulated unit. It looks clear, and it has side benefits: it blocks nearly all ultraviolet and it quiets the room. You do not need it on the whole house. The windows that matter are the ones a person can reach from the ground: the walkout level, ground-floor bedrooms and bathrooms, windows hidden behind shrubs or a fence, and any window next to a door where a broken pane gives a hand access to the lock.
The glass is half of it. The sash has to stay shut when someone pries it. Casements with a multipoint lock that draws the sash in at two or three points resist prying far better than a single cam. Double hungs get locks at both meeting rails and, where offered, reinforced keepers screwed through to the frame. Sliders get a secondary lock or a pin. JMB Builders orders the glass and the hardware together and installs the windows with the frame anchored into the framing, because a laminated pane in a frame that pries out of the opening has not bought you anything.
Get a written quote for this job
Three photos and a sentence is enough: a reply within one business day, or ask for a free in-home estimate. Or text the photos to 763-204-2099.
What you supply
- A list of the windows a person can reach from the ground, including behind shrubs and fences
- Whether the windows need to stay operable for egress and ventilation, or can be fixed
- Your frame style and finish choices, same as any replacement
- Any alarm sensor plan, so the sash and frame leave room for contacts
What JMB supplies
- A recommendation on the quote for which windows get laminated glass and which stay standard
- In-home measure of each opening before anything is ordered
- The windows, with laminated glass and the lock hardware named per unit
- Frame fastening into the rough framing at the spacing the maker calls for, not just foam
- Removal and haul-away of the old windows
- Sill pan, shims, low-expansion foam and exterior sealant at every opening
- Photos of the finished windows in your job folder
How it is priced: per window
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- Laminated glass is an upcharge per unit; the count of reachable windows drives the total
- Casement with multipoint lock vs. double hung or slider with added locks
- Fixed units where a window never needs to open, which cost less and seal better
- Insert vs. full-frame install; full-frame lets the frame anchor directly to the studs
- Egress requirements in ground-floor and basement bedrooms, which fix the minimum size
- Whole house done at once vs. the reachable windows only
Send a photo of each ground-level window from outside and tell us which rooms are bedrooms. The quote marks which units carry laminated glass and which hardware is on each.
How long it takes
Laminated units are heavier but install at the normal pace, three to five windows a day as inserts. Laminated glass can add factory lead time, written on the quote.
How your project works
- 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 reply within one business day. Prefer a look in person? A free in-home estimate is always an option.
- 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
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
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.
Situations and options
Laminated glass on the reachable windows only
Walkout, ground floor, behind the shrubs and beside the doors get laminated glass; upper floors get standard glass in the same frame and color. The most common and the most sensible way to buy it.
Casements with multipoint locks
A casement that locks at two or three points along the sash resists prying better than any sliding window. On a ground-floor bedroom it also clears the egress size in a smaller frame. Our default frame for a security order.
Fixed laminated units where nothing needs to open
A bathroom, stairwell or basement window that is never opened can be a fixed laminated unit. No sash, no lock to defeat, better seal and lower cost. Bedrooms keep an operable egress window.
Laminated glass plus a window opening control device
For a house with kids on the second floor, laminated glass on the ground floor and opening-limit devices upstairs cover both ends: break-in from outside and a fall from inside. The devices release for a fire escape.
Laminated Glass Replacement Windows for Security on the Ground Floor: questions, answered
Is laminated glass the same as tempered glass?
No. Tempered glass is heat-treated so it breaks into small blunt pieces; it is a safety glass for places people might fall into it, and once broken it leaves an open hole. Laminated glass is two panes bonded to a plastic interlayer; it cracks but stays in the sash, so there is no hole to climb through. For security you want laminated. Some windows, like one in a shower, need tempered for safety and can be ordered laminated and tempered together.
Can laminated glass windows still be broken into?
Yes, with enough time, repeated blows and noise, which is exactly what most break-ins avoid. A single hit cracks the glass and the sheet stays in place. Getting through means beating a hole big enough to climb through while the glass hangs together, in view of the neighbors. Pair it with locks that resist prying and a frame anchored to the framing, and the window stops being the easy way in.
Which windows should get security glass?
The ones a person can reach from the ground without a ladder: walkout and basement windows, ground-floor bedrooms and bathrooms, anything behind shrubs or a privacy fence, and any window near enough to a door that breaking it gives a hand access to the deadbolt. Second-floor windows rarely need it. We walk the outside of the house at the estimate and mark the list on the quote.
Does laminated glass look different from regular glass?
No. It is clear, and from inside or outside it looks like any other insulated glass. The interlayer is invisible. It does block nearly all ultraviolet, which protects floors and furniture, and it quiets the room noticeably, so it is often ordered for those reasons on windows that have nothing to do with security.
Can a ground-floor bedroom window be secure and still meet egress?
Yes. Egress is about the size of the opening and being able to open it from inside without tools or keys, and a laminated casement with a multipoint lock does both. The lock is operated from inside with one hand; from outside there is nothing to grab. We size the unit to the egress opening required for a sleeping room and quote it that way.
Do I need bars or a security film if I get laminated glass?
Usually not. Laminated glass does from the factory what an aftermarket film tries to do from the inside, and it is sealed inside the unit so it never peels or bubbles. Bars block egress from a bedroom and make the house look like a target. Good glass, good locks and a frame fastened into the studs is the combination we install.
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 the builders we work with. Counts come straight from our job log; no customer names.
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Read morePage reviewed October 10, 2026 · JMB Builders LLC, MN license BC809005 · All windows pages
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