Entry Door With New Interior Trim
The new front door is going in, and the old casing inside is chipped, painted shut and the wrong profile anyway.
Reply within one business day. Or call / text 763-250-3621.
An entry door with new interior trim is the prehung door replaced and then cased inside: jamb extensions if the new frame sits short of the drywall, casing to match the room, and a plinth or base return where the trim meets the floor. JMB Builders does both in one job across the Twin Cities metro, priced per door, frame included, trim as its own line. Photo reply within one business day, or a free in-home estimate.
- Door and interior casing in one job
- Priced per door, frame included; trim its own line
- Casing matched to the room or a new profile
When an entry door is replaced, the interior casing comes off to get the old frame out. Putting it back is possible when it comes off clean and the new frame sits at the same depth, but it usually does not: the casing splits, the paint line shows, or the new jamb is a little proud or a little short of the drywall. New interior trim with the door solves all of that in the same visit.
The pieces are jamb extensions when the new frame does not reach the drywall, casing on both sides and the head, and the base: a plinth block or a return where the casing meets the baseboard. If the entry has a sidelite, its casing is done to match. You choose the look: the room's existing profile in paint or stain grade, a wider flat casing, or a craftsman-style head with a cap. New trim goes in primed or sanded and caulked; painting or staining is quoted as a separate line, or finish it yourself.
The door itself is a plain steel or smooth fiberglass door often in stock at our supplier, or a door with glass, a sidelite or a color custom ordered with the lead time written on the quote. Either way the install is the full prehung replacement: old door and frame out, sill rot repaired, sill pan and flashing in, new unit set square, then the trim inside and the brickmould outside.
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 763-250-3621.
What you supply
- Photos of the entry door from inside showing the existing casing and baseboard, and from outside, with a close-up of the sill
- A photo of the nearest window or interior door trim so the profile and species can be matched
- Your trim choice: match the room, a new flat or craftsman profile, paint grade or stain grade
- Your pick of door: in-stock steel or smooth fiberglass, or a custom glass, sidelite or color
What JMB supplies
- A measure of the opening and the wall depth so the jamb extensions are cut right
- The prehung entry door with frame, in stock or custom ordered through ABC Supply
- Removal of the old door, frame and interior casing, with haul-away
- Repair of rotted sill framing or subfloor, quoted as its own line
- Sill pan, flashing tape, foam, sealant and shims
- Jamb extensions, casing in the profile you chose, and plinths or base returns at the floor
- Exterior brickmould, primed and caulked
- Painting or staining quoted as a separate line, or leave it primed and caulked
- Lockset and deadbolt installed, strike and weatherstrip adjusted
- Photos of the finished door and trim in your job folder
How it is priced: per door
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- In-stock steel or smooth fiberglass vs. a custom ordered glass, sidelite or color
- Paint-grade vs. stain-grade casing, and matching an existing species and profile
- Jamb extensions needed for the wall depth
- A sidelite or transom cased to match
- Baseboard tie-in: plinth blocks or returns, and patching where old casing was wider
- Rot at the sill and subfloor once the old door is out
- Painting or staining the trim, quoted as a separate line
A photo of the nearest window or interior door trim tells us the profile to match. Send it with the door photos.
How long it takes
About a day on site for the door and interior trim together, more with rot repair. An in-stock door is picked up soon after the measure; a custom ordered door has its lead time 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
Casing matched to the room
Jamb extensions and casing cut to the same profile and species as the room's other trim, with plinths or returns matching the baseboard.
Craftsman head casing
Flat side casings with a wider head and a small cap, in paint grade. A common upgrade when the old colonial casing is going.
Wider flat casing
Plain flat stock in a wider width for a cleaner look, paint grade, often paired with a smooth fiberglass door.
Entry Door With New Interior Trim: questions, answered
Does a new entry door come with the interior casing?
The prehung door comes with its frame; the interior casing and any jamb extensions are added on site and are their own line on the quote. JMB Builders does the door and the trim in one job so the wall is opened once. Send photos and we reply within one business day, or book a free in-home estimate.
Can the old casing go back on the new front door?
Sometimes, if it comes off in one piece and the new frame sits at the same depth. Usually the casing splits or the new jamb is a different depth and the old trim does not sit flat. New casing cut to the opening is the cleaner result and often the smaller line.
What are jamb extensions and do I need them?
Strips of wood that extend the new door frame out to the face of the drywall when the frame is shallower than the wall. Many prehung doors come in a standard jamb depth, and older or thicker walls need the extension so the casing has something to land on. We measure the wall depth and include them when needed.
Can you match my stained oak casing?
Yes. Stain-grade oak is cut to the same profile and stained to match as closely as the wood allows. New oak next to decades-old oak will be a shade lighter at first and darkens with time. Staining is quoted as a separate line.
What happens where the new casing meets the baseboard?
Either a plinth block at the bottom of each casing leg, or the casing runs to the floor and the baseboard returns into it. If the old casing was wider than the new, the drywall and paint line are patched. We match what the room's other doors do.
Is the entry door in stock or custom ordered?
A plain steel or smooth fiberglass door in a common size is often in stock at our supplier and can go in soon after the measure. A door with glass, a sidelite, a color or a wood grain finish is custom ordered with the lead time written on the quote. The trim is done the same day as the door either way.
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.
Related jobs we do
Front Door Only, Frame Included
You want a new front door. Not a new entry system, not every door in the house. One door, its frame, done right.
Read morePatio Door With New Interior Trim
The old slider had drywall returns that cracked, or oak casing that does not match anything else anymore. New door, new trim, finished the same day.
Read moreReplace Just One Exterior Door
One door is drafty, soft at the bottom or will not latch, and every other door in the house is fine. Replace that one and leave the rest alone.
Read moreEntry Door Replacement — New Door Supplied, Rot Fixed, Trimmed Out
The front door is drafty, the bottom of the frame is soft and the lock barely lines up. You pick the door; we measure, order it, and put it in on a dry, solid sill.
Read moreReplace Door Casing Only — New Trim on Existing Doors
The doors are fine. The skinny clamshell casing around them is not. New trim on every door in the house changes the whole place and does not need a single door replaced.
Read moreCraftsman 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.
Read morePage reviewed October 25, 2026 · JMB Builders LLC, MN license BC809005 · All doors pages
Where we work
Door Replacement & Installation near you
Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: