Interior Door Installation in Zimmerman, MN
The bedroom doors drift open on their own, the bathroom door rubs at the top corner, and every one of them sounds hollow when it shuts.
Reply within one business day. Or call / text 763-204-2099.
Interior door installation in Zimmerman, MN mostly means replacing the hollow-core builder doors that came with 1990s and 2000s homes, and rehanging doors that were never set plumb. JMB Builders, based in Zimmerman, installs prehung units or fits slabs to your jambs, shims at the hinges and strike, cases the opening and sets your hardware. Priced per door, and more doors in one visit lowers the rate. Send photos and we reply within one business day.
- Priced per door, prehung or slab
- Hollow-core to solid-core swaps
- Contractor based in Zimmerman
Interior doors in a lot of Zimmerman homes came from the same builder package as the trim: hollow-core slabs in split jambs, set fast with a few shims and a nail gun. A door that drifts open or shut is hung out of plumb. A door that rubs at the head corner usually has a top hinge screw that never reached the stud. Neither is hard to fix, but across a whole house it adds up, and many owners decide to replace instead.
When the jambs are square, we fit new slabs to the old frames: mortise the hinges, bore for the lockset, plane the edges for an even gap. When the jambs are split, racked or painted shut, prehung units are cleaner. The old door, jamb and casing come out, and the new unit is shimmed at the hinges and strike with a long screw through the top hinge into the framing.
Solid-core doors are the usual upgrade for bedrooms, bathrooms and an office off the main floor. They are heavier, so the jamb and hinges have to carry them. Closet bifolds and bypass doors often get swapped at the same visit.
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
- The doors, or the style and core you want and we put them on the quote
- Size and handing for each opening (send photos before you buy and we check)
- Knobs or levers and the hinge finish
- Your paint color if we are finishing primed doors
What JMB supplies
- Removal and haul-away of the old doors, jambs and casing
- Shims, long hinge screws into framing, nails, filler and caulk
- Hinge mortises, lockset bore and edge planing on slab fits
- Casing matched to the trim in the rest of the house
- Strikes and stops adjusted so each door latches
- Painting is quoted as a separate line — or leave it primed and caulked and paint it yourself
- Photos of the finished doors 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:
- Door count: a whole-house swap brings the per-door rate down
- Slab fitted to an existing jamb vs. a new prehung unit
- Hollow-core vs. solid-core vs. glass-panel or French doors
- Closet bifold and bypass doors in the same visit
- Reusing hardware vs. new knobs, levers and hinges
- Openings out of square that need the framing trued
Send a photo of each opening, the label or order if you bought the doors, and which ones are slab swaps.
How long it takes
Prehung units go in at two to four a day. Fitting slabs to old jambs is slower per door. Most whole-house swaps finish in two to four days.
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.
Interior Door Installation in Zimmerman, MN: questions, answered
Why does my interior door swing open or closed on its own?
The hinge-side jamb is out of plumb, so gravity pulls the door one way. It is common on builder-hung doors, where the jamb was shimmed quickly or moved as the house settled. We reshim the hinge jamb, or replace the unit if the jamb is split. Bending a hinge pin only hides it.
Can you replace hollow-core doors with solid-core in my Zimmerman home?
Yes, and it is a common request in houses built in the 1990s and 2000s. We either fit solid-core slabs to the existing jambs or install prehung solid-core units. Because solid-core doors are heavier, a long screw goes through the top hinge into the framing so the door does not sag.
Should I buy prehung doors or just slabs?
Buy slabs if your jambs are square and you like the casing; it skips the jamb and trim work. Buy prehung if the jambs are split, racked or caked in paint, or if you are changing the trim anyway. Send photos of the openings before you buy and we say which suits each door.
Can you install doors I bought at Menards or Home Depot?
Yes, labor only. We check sizes and handing from your photos before you buy, then install, case and set the hardware. Open the boxes when they arrive and check for damage, since a dented or wrong-hand door is easier to return before it is hung.
Do interior doors need a permit in Zimmerman?
Replacing a door in the same opening is finish work and usually needs no permit, but rules vary. Widening an opening or cutting a new one in a wall can mean a header, and most cities require a permit for that. We check with the City of Zimmerman building department and pull a permit when the job needs one.
Do you hang doors in towns near Zimmerman?
Yes. We are based in Zimmerman and hang interior doors in Elk River, Big Lake and across the Twin Cities. A small door job is easier to fit in close to home. Send photos for a reply within one business day, or book a free in-home estimate.
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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