For Homeowners & Contractors · Free Estimate
Finish & Trim Carpentry in Minnesota
From crown molding and wainscoting to interior doors and built-ins — clean, precise finish carpentry across the Twin Cities metro, backed by a licensed contractor who sweats the details.
Finish carpentry is where a project goes from installed to done. JMB Builders handles interior trim work throughout the Twin Cities metro — crown molding, baseboard, window and door casing, wainscoting, and interior doors — with the same care we bring to every window and door install.
Whether you need trim to complete a window replacement, millwork matched in an older home, or a full trim package on a remodel or new build, you get a licensed contractor who sweats the details: tight joints, straight lines, and consistent reveals in every room.
Trim Carpentry Services
Interior trim work for every room
From a single room of crown molding to a whole-home trim package — here's what we install across the Twin Cities metro.
Crown Molding Installation
Single-piece and multi-layered crown molding with tight, clean corners — the detail that makes a room feel finished and custom.
Learn moreBaseboard & Shoe Molding
Straight, consistent baseboard and shoe molding installation throughout your home, scribed to floors that aren't perfectly level.
Learn moreWindow & Door Casing
Casing, jamb extensions, sills, and aprons — including full trim-outs after window replacement, whether we did the install or not.
Learn moreWainscoting & Board-and-Batten
Wainscoting, board-and-batten, picture-frame molding, and accent walls that add character to dining rooms, entries, and stairways.
Learn moreCoffered & Decorative Ceilings
Coffered ceilings, beams, and ceiling trim details that turn a plain ceiling into the centerpiece of the room.
Learn moreInterior Door Installation
Pre-hung, solid-core, and French interior doors for bedrooms, bathrooms, and closets — hung square, swinging true, hardware included.
Learn moreBuilt-Ins & Mantels
Built-in shelving, window seats, mantels, and feature trim work that make the most of your space with a furniture-quality finish.
Trim Repair & Matching
Damaged casing, missing baseboard, or an addition that needs to blend in — we repair and match existing millwork, including older-home profiles.
Learn moreWhat's included
- Stain-grade and paint-grade trim packages
- Trim to match existing millwork in older homes
- Material measuring and ordering, or install-only if you supply
- Clean job sites and dust control inside your home
- Standalone trim projects or trim-outs after window and door replacement
Why it matters
- Tight miters, clean copes, and consistent reveals — details you notice every day
- One contractor for windows, doors, and the trim that finishes them
- Stain-grade experience where filler and caulk can't hide mistakes
- Ideal finishing step after window or door replacement
- Licensed, insured Minnesota contractor with clean job sites
Finish carpentry questions, answered
Can I choose the trim profile myself?
Absolutely. We can match your existing millwork exactly, help you pick a new profile that fits your home's style, or work from a design you already have in mind. We'll bring samples and options to the estimate.
Do you install paint-grade and stain-grade trim?
Yes — both. Stain-grade work demands tighter joinery because filler and caulk can't hide gaps, and that's exactly the standard we hold every install to, painted or stained.
Do you handle small trim repairs?
Yes. Damaged casing, missing baseboard sections, doors that won't close right — no trim project is too small. We also match profiles in older homes where the original millwork is no longer stocked.
Can you trim out windows another company installed?
Yes. If your windows or doors went in without interior trim — or the trim work wasn't up to par — we'll handle casing, jamb extensions, and sills as a standalone project.
Get a free finish carpentry estimate
Tell us about your trim project — crown molding, wainscoting, interior doors, or a whole-home trim package — and we'll respond within one business day.