Casement Window Replacement — Crank-Out Windows Measured and Installed
The crank strips, the sash will not pull tight, frost builds on the glass edge. When the casement itself is done, we replace it and finish the trim.
JMB Builders does casement window replacement across the Twin Cities metro. We quote from your photos, measure each crank-out window in person, order the new casements with the hinge side you want, remove the old units, set the new ones plumb so the sash closes evenly on the weatherstrip, seal and insulate them, and trim out the inside and outside. Priced per window.
- Priced per window, windows supplied
- Hinge side chosen per opening
- In-home measure before anything is ordered
- Licensed MN contractor BC809005
Casements seal by pressing the sash into the weatherstrip when you crank it shut. That works until the frame racks, the hinges wear, or the sash warps. Then the window stops closing tight, frost forms along one edge, and a new operator only helps for a season. If the crank is the only problem, replacing the operator is a small repair. If the sash and frame are the problem, the window is due.
Casements hang from one side, so the install has to be dead plumb and square or the sash drags at the corner. We set each unit, check the reveal around the sash, and adjust before it is foamed in. Hinge side is chosen per opening so the sash swings away from walkways and catches the breeze you want.
What you supply
- Your choice of brand, color, glass and hardware finish
- Which way each sash should swing (we suggest at the measure)
- Clear access inside: furniture pulled back and window coverings down
- Your paint or stain color for new trim — Painting is quoted as a separate line — or leave it primed and caulked and paint it yourself.
What JMB supplies
- In-home measure of every opening before the order goes in
- The casement windows, ordered to size with screens and hardware
- Removal and haul-away of the old windows
- Sill pan, flashing tape, low-expansion foam and backer rod
- Rot repair at the sill or jambs when found (quoted before we start)
- Interior casing or stops and exterior trim or capping
- Photos of the finished windows in your job folder
How it is priced: per window
Quoted in writing from your photos within one business day. What moves the number:
- Insert into the old frame vs. full-frame removal to the rough opening
- Size, brand, frame material and glass package
- Changing style: double hung or slider opening converted to a casement
- Multiple casements mulled together or flanking a picture window
- Rot in the sill or framing found at the measure
- Second-story access and exterior trim or siding work
Send a photo of each window open and closed, plus any label on the frame or crank. It tells us the brand and age.
How long it takes
Inserts: three to five casements in a day. Full-frame units with exterior trim: one to three a day depending on size and siding.
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 quote within one business day. We only come out to measure first when the job needs a tape measure — no pressure, no games.
- 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
Casement for casement
The same style in the same opening. The most common job: old crank-outs from the 1980s and 90s with worn frames swapped for new units with fresh hardware and weatherstrip.
Double hung or slider to casement
Same opening, new style. The rough opening usually stays the same size; the grille pattern and the swing side are picked to suit the room.
Push-out casement
No crank handle on the stool — a lever and the sash pushes out by hand. A look some owners want in older or cottage-style houses; not every brand offers it.
Casement Window Replacement — Crank-Out Windows Measured and Installed: questions, answered
Should I replace the casement window or just the crank?
If the window closes tight and only the crank is stripped, replace the operator. It is a short repair. If the sash is warped, the frame is racked, or frost forms along the edge even with a new crank, the window itself is worn out and replacement is the fix.
Can a casement replace a double hung window in the same opening?
Yes. The rough opening usually stays the same and the new casement is ordered to fit it. Wide openings may take two casements mulled together. We check the room layout so the sash does not swing into a deck, walkway or shrub.
Which side should the casement hinge on?
Most people hinge the sash so it opens toward the prevailing breeze and away from anything outside it could hit. On a pair, the sashes usually open away from each other. We mark each opening during the measure so it is ordered right.
Why does my casement window get frost on one edge?
Frost along one edge usually means the sash is not pulling tight against the weatherstrip there. The cause is a worn operator, a bent hinge, a warped sash or a frame that was installed out of square. If a new operator does not fix it, the window needs replacing.
Are casement windows good for Minnesota winters?
Casements seal by compression, so they tend to leak less air in wind than sliding sashes. Energy use still depends on the glass package and the installation. A casement installed out of square leaks no matter how good the unit is.
Where are the screens on a casement window?
On the inside, because the sash swings out. They clip or latch into the frame and come out for cleaning. The glass is cleaned from inside by cranking the sash open.
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.
Related jobs we do
Casement Window Crank Replacement — Operators, Hinges and Locks
The crank turns and nothing happens, or the sash opens but will not come back far enough for the lock to catch. The window is fine. The hardware is worn, and it can be replaced.
Read moreDouble Hung Window Replacement — Measured, Ordered and Trimmed
Sash cords snapped, sashes painted shut, or tilt-ins that will not stay up. We replace the double hungs and finish them inside and out.
Read moreAwning Window Replacement — Top-Hinged Windows That Vent in Rain
An awning over the sink that will not crank shut, or a row under the living room glass that frosts. We replace them and trim them out.
Read morePicture Window Replacement — Large Fixed Glass Set and Trimmed
A fogged living room window, a picture window that frosts at the bottom, or an old unit you want to open up with casements. We replace it and finish the trim.
Read moreInsert Replacement Windows — Pocket Install in the Old Frame
The frames are sound, the trim is worth keeping, and you want new windows without tearing into the walls. An insert slides into the old frame.
Read more1.5 Story Dormer Window Replacement — Upstairs Knee Wall Bedrooms
The upstairs windows in the dormers are drafty and hard to reach, and the bedrooms up there are the coldest rooms in the house.
Read morePage reviewed September 26, 2026 · JMB Builders LLC, MN license BC809005 · All windows pages
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Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: