Custom Built-Ins in St. Paul, MN
A bay with nothing in it, a spare bedroom that has to be an office, or a back door where coats land on a chair: built-ins for the St.
Reply within one business day. Or call / text 763-204-2099.
Custom built-ins in St. Paul, MN are window seats, bookshelves, desks and back-entry lockers that JMB Builders builds on site to fit the house: stained wood with period trim in Victorian and 1920s homes, painted and simpler in postwar ones. Each is plywood boxes fastened to the framing and scribed to walls that are not flat. Priced per project. Send photos and we reply within one business day, or book a free in-home estimate.
- Priced per project
- Period trim or clean painted style
- Scribed to plaster walls and old floors

In a Victorian or 1920s St. Paul house, a built-in has to look like it came with the house. That means stain-grade wood near the color of the existing trim, casing with a back band or base with a cap carried across the front of the unit, and panel doors in the style of the room's doors. It also means scribing to plaster walls, because a cabinet set tight against a wall that bows leaves a gap no caulk will hide.
Window seats are the most natural fit in these houses: a bay or a deep window with a seat box below, drawers or a lift lid, and shelves on either side. Bookshelves beside a doorway or fireplace and a hall bench at the front door are the other common pieces.
Postwar St. Paul homes call for something different. Small bedrooms become offices with a built-in desk and shelves above, and the back door from the driveway gets lockers and a bench because there was never a mudroom. Those are usually painted and plainer, and they go faster. Homeowners in White Bear Lake and Minneapolis ask for the same pieces. Painting is quoted as a separate line — or leave it primed and caulked and paint it yourself.
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
- Photos of the wall, bay or corner straight on, with a tape across it
- A photo of the nearby trim and doors so the built-in can match
- Stained or painted, and your color
- Hardware, cushions or lights you have picked; we install the hardware and lights
What JMB supplies
- A sketch to your space with seat height, shelf spacing and door style
- Plywood boxes fastened to the studs and scribed to the walls and floor
- Stain-grade oak or fir with period trim, or paint-grade poplar and MDF
- Lift lids or drawers in window seats, with the heat register ducted through the kick
- Desks with a solid top, shelves above and a cord grommet
- Lockers with hooks and a bench, in hard-wearing paint-grade stock
- Lights in the shelves wired by a licensed electrician when you want them
- Staining or painting when you want it done, quoted as its own line
How it is priced: per project
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- Size of the piece and the number of bays, drawers and doors
- Stain-grade wood with period trim vs. painted and plain
- A bay or angled wall that needs angled boxes and more scribing
- Heat registers or radiators that have to be worked around
- Lights in the shelves, with wiring by a licensed electrician
- Staining to blend with old trim, quoted as its own line
Send the space straight on and from one side with a tape across it, plus a close-up of the trim beside it.
How long it takes
A window seat or a set of back-entry lockers: one to three days. A desk wall with shelves: two to four days. Stain-grade work in an older house adds time for finish matching.
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
Window seat in a bay
A seat box fitted to the angles of a bay window, with drawers or a lift lid and the heat register ducted through the front.
Bookshelves with period trim
Stain-grade shelves beside a doorway or fireplace, with casing, back band and capped base carried across the front.
Spare-room desk wall
A built-in desk with shelves and upper cabinets in a small postwar bedroom, so the room works as an office.
Back-entry lockers
Open lockers with hooks, a bench and cubbies at the side or back door, for houses that never had a mudroom.
Custom Built-Ins in St. Paul, MN: questions, answered
Can a built-in match the woodwork in a Victorian or 1920s St. Paul house?
Close, yes. We build in stain-grade oak or fir, carry the house's casing and base profiles across the front of the unit, and use panel doors in the room's style. Stain is tested on offcuts first, and we say up front that new wood beside old finish is close, not identical, at first.
Can you build a window seat into a bay window?
Yes. The seat box is built to the angles of the bay, scribed to the walls under the windows, and topped with a seat that can lift or sit over drawers. If a register or radiator is under the window, we route the heat through the front so the bay stays warm.
Can you turn a small bedroom in a postwar St. Paul house into an office with built-ins?
Yes. A built-in desk along one wall with shelves or cabinets above fits even small rooms, and it leaves the floor open. We cut grommets for cords and plan outlet or light changes with a licensed electrician before building.
Can you add lockers at a back door when there is no mudroom?
Usually. Open lockers with hooks, a bench and cubbies can fit a wall beside the back or side door, at a shallow depth that still leaves the walkway clear. We build them in paint-grade stock that stands up to wet coats and boots.
Do I need a permit for built-ins in St. Paul?
A seat, desk or set of shelves by itself rarely is. Moving a wall, closing a window or adding a circuit for lights can be, so when your plan includes one of those, we check with the City of St. Paul building department and pull the permit when one is needed.
How are custom built-ins priced in St. Paul?
Per project. Size, the number of doors and drawers, stain-grade with period trim vs. painted, and any bay angles or heat registers set the number. Finish is quoted as its own line, from your photos or a visit.
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 9, 2026 · JMB Builders LLC, MN license BC809005 · All carpentry by city pages
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