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Entry 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.

JMB Builders does full-service entry door replacement across the Twin Cities metro. We measure the opening, order the door in the size, swing and style you pick, pull the old door and frame, repair rot in the sill, jamb or subfloor, set the new unit in a sill pan with flashing, and trim it inside and out. Priced per door, quoted from photos within one business day.

  • Priced per door, door included
  • We measure and order the door
  • Sill, jamb and subfloor rot repaired
  • Quote from photos in 1 business day
  • Licensed MN contractor BC809005
Installer setting a new prehung entry door in its opening

Most entry doors that need replacing are not worn out on the face. They fail at the bottom: the sill was set without a pan, water got under it for years, and now the jamb feet, the threshold and the subfloor behind them are soft. A new slab hung in that frame does not fix anything. The whole unit has to come out so the opening can be dried out and rebuilt.

Full service means you do not shop for the door or guess at sizes. You tell us what you want — steel or fiberglass, glass or solid, color, hardware finish — and we measure the opening and order a prehung unit to fit it. The door comes with a jamb width that matches your wall and a swing that matches the room, so it goes in without shimming out a mistake.

Install day is the old door out, rot cut out and replaced, a sill pan down, flashing tape lapped at the sides and head, the new unit shimmed plumb and square, foamed and sealed, then brickmould outside and casing inside. Painting is quoted as a separate line — or leave it primed and caulked and paint it yourself. If you already bought a door, we install that too. We do entry door replacement in Elk River, Zimmerman, Big Lake, Otsego, Rogers and across the Twin Cities metro.

What you supply

  • Your choice of door style, material, glass and color — we bring samples or send links to pick from
  • Your choice of lockset and deadbolt finish, or your own hardware if you have it
  • Photos of the door from inside and outside, and a close-up of the sill and the bottom of the frame
  • Paint color if you want the new casing or door painted — painting is quoted as a separate line

What JMB supplies

  • Measurement of the opening and the order for the prehung door in the right size, swing and jamb width
  • Removal and haul-away of the old door, frame and trim
  • Repair of rotted sill framing, jamb area or subfloor, quoted from the photos
  • Sill pan, flashing tape, low-expansion foam, sealant, shims and fasteners
  • Exterior brickmould or trim and interior casing in a standard profile or matched to the house
  • Lockset and deadbolt installed, strike and weatherstrip adjusted so it latches and seals
  • Painting of the door and trim when you want it, quoted as its own line
  • Photos of the finished door in your job folder

How it is priced: per door

Quoted in writing from your photos within one business day. What moves the number:

  • The door itself: steel vs. fiberglass, solid vs. glass lites, and factory finish or primed
  • Same-size replacement vs. an opening that has to be resized
  • How much rot is at the sill, jamb feet and subfloor once the old door is out
  • Siding type — vinyl, lap, stucco or brick change how the outside is trimmed and sealed
  • Matching an existing interior casing profile vs. a standard one
  • Hardware: a basic lockset vs. a handle set, smart lock or multipoint lock
  • Painting the door and trim, quoted as a separate line

Send photos of the whole door from both sides plus a close-up of the sill. The quote lists the door, the install and any repair as separate lines.

How long it takes

One entry door in a sound opening: about a day on site. Add time for rot repair. The door itself is ordered after you approve the quote; lead time depends on the door.

How your project works

  1. 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 quote within one business day. We only come out to measure first when the job needs a tape measure — no pressure, no games.

  2. 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. 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. 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

Steel entry door

An insulated steel prehung unit. Takes a dent if something hits it and needs paint to stay sealed, but it is a tough, simple door for a back entry or a front door that gets painted.

Fiberglass entry door

Holds up to sun and wet weather without denting, and comes smooth for paint or textured for stain. A common pick for a front door that faces south or west.

Door with glass

Half-lite, three-quarter or full-lite doors to bring light into a dark entry. Decorative or privacy glass is chosen when the door is ordered, since the lite is built into the slab.

Door you already bought

If the door is already in your garage, we install it the same way — rot repair, pan, flashing and trim. See our labor-only door installation page for how that is priced.

Entry Door Replacement — New Door Supplied, Rot Fixed, Trimmed Out: questions, answered

Do you supply the entry door or do I have to buy it?

We supply it. You choose the style, material, glass and color, we measure the opening and order a prehung unit that fits it, and the door is a line on the quote. If you would rather buy the door yourself, we install that too and price the job as labor only.

Should I replace just the door slab or the whole entry door unit?

If the frame is solid, square and dry, a slab can work. Most entry doors we see have rot at the bottom of the jamb or the sill, a threshold that no longer seals, or a frame out of square — and a new slab in that frame will leak and bind like the old one. Replacing the prehung unit lets us fix the opening and set the new door in a sill pan.

What if the subfloor under my front door is rotten?

We cut out the soft wood and replace it before the new door goes in. That can mean the rim or sill plate, the subfloor under the threshold and the bottom of the framing on each side. We show you photos when the old door is out and quote the repair from what we find; we do not set a new door on soft wood.

How long does it take to get a new front door?

The install is about a day for one door in a sound opening. The wait is the door order, which depends on the manufacturer, the glass and whether it comes painted or stained from the factory. We give you the expected date when the order is placed and schedule the install once the door is here.

Will my house be open to the weather during the replacement?

Only for the hours between pulling the old door and setting the new one. We do not take the old door out until the new one is on site, and the opening is closed up the same day. If hidden rot takes longer to fix, the opening is covered and secured before we leave.

Do you paint the new door and trim?

Painting is quoted as a separate line. A fiberglass or steel door can also come with a factory finish, so it only needs the new trim painted. Or leave it primed and caulked and paint it yourself.

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 for the builders and dealers we sub for. Counts come straight from our job log; no customer names.

Get a written quote for this job

Three photos and a sentence is enough. You hear back within one business day. Or text the photos to 763-204-2099.

Free quote from your photos in one business day · No obligation · Licensed contractor

Photos (up to 3 — the fastest way to a price)

One wide shot of the room or wall, one close-up of the trim or opening, one of anything you're unsure about.

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Page reviewed September 26, 2026 · JMB Builders LLC, MN license BC809005 · All doors pages

Where we work

Doors near you

Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: