Interior French Door Installation
Two doors that meet in the middle with an even gap, close without a rattle, and stay that way — interior French doors fitted and hung by a licensed Minnesota contractor.
Reply within one business day. Or call / text 763-250-3621.
Interior French door installation near me covers bare slab pairs fitted to an existing jamb, prehung double units, and single-to-double conversions. JMB Builders does it across the Twin Cities metro: we size and plane the slabs, mortise the hinges, set the astragal and catches, and adjust both doors until they meet evenly and close without a rattle. Priced per opening, with hardware and any framing on the quote. Send photos and we reply within one business day.
- Priced per opening, slabs or prehung
- Hinges mortised, astragal and catches set
- Single-to-double conversions framed and cased
A single door is forgiving. A pair of French doors is not. Both slabs have to hang plumb, sit at the same height, and meet at the astragal with a consistent gap top to bottom — otherwise one door rubs, the catch doesn't engage, and the whole thing looks off every time you walk past. JMB Builders installs interior French doors throughout the Twin Cities metro, and fitting pairs into existing openings is something we do regularly.
A typical request looks like this: a homeowner buys two 56-by-80 solid-core French door slabs — no jamb, no hinges, no hardware — and needs them fitted into an opening between rooms. We check the opening, plane and trim the slabs to fit, mortise the hinges, install the catches and handles, and adjust until both doors close clean. If you'd rather start with a prehung double unit, we install those too.
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
- The doors: a slab pair or a prehung double unit sized to the opening (send photos before you buy and we check it)
- Hinges, catches, flush bolts and handles if you have picked them, or we spec and supply them on the quote
- Your paint or stain color if the doors come primed and we are finishing them
What JMB supplies
- Shims, finish nails, glue, filler and paintable caulk
- Astragal or T-astragal where the two doors meet, if the slabs do not come with one
- Hinge mortising, boring for handles and catches, and planing for an even gap
- Header, framing, drywall patch and new casing on a single-to-double conversion (quoted from photos)
- Removal and haul-away of the old door, jamb and casing
- Photos of the finished doors in your job folder
- Painting or staining when you want it done, quoted as its own line
How it is priced: per opening
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- Slab pair that needs full fitting vs. a prehung double unit that drops into the opening
- Hardware scope — hinges, ball or roller catches, flush bolts, and handle sets, and whether we supply them
- Condition of the existing jamb and whether it's square enough to reuse
- Converting a single opening to a double (header, framing, drywall patch, and new casing)
- Solid-core vs. hollow-core slabs — solid-core doors are heavier and need more robust hinges and careful alignment
Send a photo of the opening from both sides, the width and height of the jamb or rough opening, and the door label or receipt if you already bought the doors.
How long it takes
A prehung double unit: about half a day. Fitting a bare slab pair: most of a day. A single-to-double conversion with a new header: one to two days, plus drywall finishing time.
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
Slab pairs into an existing opening
Two bare slabs fitted to your current jamb. We size the doors, mortise hinges to match, add an astragal or T-astragal where the doors meet, and set the catches so they close and stay closed.
Prehung double door units
A factory-hung pair with jamb and astragal already in place. We remove the old door and jamb, set the unit square, shim at every hinge, and case it out.
Single door to double door conversion
Widening a standard opening for a pair of doors. We open the wall, install a new header where needed, frame the rough opening to size, and finish the drywall and trim so it looks original.
Glass and privacy options
Clear, frosted, reeded, or seeded glass, true divided lites or grilles between the glass — and frosted privacy film applied to existing clear glass if you want to keep the doors you have.
Interior French Door Installation: questions, answered
What hardware do interior French doors need?
It depends on how you'll use them. For doors that mostly stay closed as a room divider, the usual setup is a dummy handle on the inactive door with a flush bolt or roller catch to hold it, and a passage or privacy lever on the active door. For a pair that stays open most of the time, dummy handles on both doors with ball catches at the top are simple and reliable. We'll recommend a setup at the estimate based on the room, the slab weight, and how you actually use the space.
Can you supply the hardware, or do I buy it?
Either way. If you've already picked out hinges and handles that match the rest of the house, bring them and we'll install them. If not, we'll spec hinges sized for your slabs, plus the catches, bolts, and handle style you want, and add them to the quote. We'll tell you what we're using and why before anything is ordered.
Can you install French door slabs I bought without a frame or hardware?
Yes, that's one of the most common French door requests we get. Bare slabs need to be fitted to the opening, planed for an even gap, hinge-mortised, and bored for hardware. It's more labor than a prehung unit but it lets you keep your existing jamb and casing. Bring the slabs, or send us photos and the dimensions, and we'll quote it.
Can you turn my single door opening into double doors?
In most cases, yes. It involves widening the rough opening and usually installing a new header. We'll check whether the wall is load-bearing and what's running through it (wiring, ductwork, plumbing) before quoting. Once it's framed, we install the doors, patch the drywall, and case it out so the new opening looks like it was always there.
How is interior French door installation priced?
Per opening. A prehung double unit is the lowest rate because the pair is already hung in its jamb. Fitting a bare slab pair to an existing jamb costs more because every slab is planed, mortised and bored on site. A single-to-double conversion is priced with the header, framing, drywall patch and new casing included, so the number you get covers the whole opening. Hardware is on the quote if we supply it.
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 1, 2026 · JMB Builders LLC, MN license BC809005 · All finish carpentry pages
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