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Window Trim-Out, Drywall Returns & Jamb Extensions
The builder wrapped the windows in drywall, or the window company left them bare. We finish them: jamb extensions, casing, stools and aprons, or clean drywall returns — priced per opening, quoted from photos.
Most window trim requests come from the same two places: a new build where the windows were finished with bare drywall returns, and a replacement-window job where the installer did not do trim. Both are per-opening work that a window company will not touch and a handyman rarely gets straight.
Each page below is one situation. Read the one that matches, then send a wide shot of the room and a close-up of one window.
Window Trim jobs we do (15)
Arched Window Trim — Casing and Jambs for Round Top Windows
The window company set the arch and stopped. The straight legs are easy; the curve is where most trim jobs fall apart, and it is the part you look at every day.
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Basement Window Trim-Out — Half-Below-Grade & Egress Windows
Thick foundation walls, a sill that sweats every winter, an egress unit sitting in a window well — basement windows need trim built for a basement, not copied from upstairs.
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Bay Window Trim Interior — Seat Board, Head Board and Jambs
A bay window has more angles in it than the rest of the room put together. We cut the seat board, head board and covers to fit them instead of caulking the gaps.
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Cracked Drywall Return Window Repair: Corner Bead, Stains & More
A split corner, a chipped edge, a brown stain at the bottom of the return, or a window the drywaller never came back to finish — we fix it square and leave it ready for paint.
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Craftsman Window Trim — 1x4 Casing With a Header and Stool
Flat boards, square cuts, a header that stands proud of the legs. Craftsman trim is simple to look at and exact to build, and it suits a 1920s bungalow or a new farmhouse the same.
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Egress Window Trim — Finish the Inside of an Egress Window
The well is dug, the concrete is cut, the window is in. Inside, you have a foot-deep hole with foam and bare lumber. We finish it so it looks like part of the room.
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Exterior Window Trim After New Siding Replacement
The siding is done, the windows are sitting in a thin strip of J-channel, and the house still looks unfinished. We trim them out in boards that shed water and last.
Read the pageJamb Extensions for Windows — Installation & Casing
The window frame stops short of the wall and there is nothing to nail casing to. Extension jambs fix that — sized to your wall, set straight, reveal even, cased the same day.
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No-Trim Windows — Drywall Wrapped Openings Done Right
Windows without trim, done the way the magazine photo makes it look: square openings, corners that stay sharp, a hairline joint at the frame and no caulk bead to yellow.
Read the pagePicture Frame Window Casing — Mitered Trim on All Four Sides
Four pieces, four miters, no ledge. Picture frame casing is the cleanest window trim there is, and the least forgiving, because every corner has to close and stay closed.
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Replace a Glass Block Window With One That Opens
Glass block lets light in and nothing else: no air, no view, no way out. We take it out of the foundation and put in a basement window that slides or tilts open.
Read the pageTransom Window Trim & Sidelight Casing at the Entry Door
The new entry unit came with sidelites and a transom, and the installer cased the door and quit. We finish the whole opening as one frame, both sides of the wall.
Read the pageWindow Company Didn't Do Trim? We Finish Replacement Windows
The new windows are in and they look great from outside. Inside there is foam, a gap and no trim, and the window company says that was not part of the job. It is part of ours.
Read the pageWindow Returns With Drywall or Wood Casing? We Do Both
Your builder wrapped the windows in drywall. Keep the clean look and have the returns rebuilt right, or add wood jambs and casing — here is how to decide. We do both.
Read the pageWindow Sill Trim — Stool and Apron Installation & Replacement
A window with no ledge, or a ledge that is split, swollen or painted into a lump — we install and replace window stools and aprons so there is a real sill to set things on.
Read the pageWhere we work
Window trim near you
Based in Zimmerman, scheduling across the Twin Cities metro. Closest first:
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