Walk-Up Apartment Window Replacement — 2- and 3-Story Buildings
Your building is a classic walk-up: one front door, one stair, units stacked two or three high, a tight lot and a street that fills up with parked cars.
Reply within one business day. Or call / text 763-204-2099.
Walk-up apartment window replacement on two- and three-story buildings with one shared stair: JMB Builders carries each window up the stair, sets upper-floor inserts from inside the unit where the opening allows, and plans a lift only where exterior work needs it. Stairwell windows get their own day and the stair stays passable. Twin Cities metro to St. Cloud, priced per unit; photo reply within one business day or a free in-home estimate.
- Priced per unit
- Upper floors set from inside where possible
- Stair kept passable every day
Walk-ups are a big share of older Twin Cities apartment buildings, and they have their own logistics. Every window, old and new, goes up and down one stair that residents also use. The lot is small, so the trailer, the windows waiting to go in and the old ones coming out need a planned spot.
Most upper-floor replacements can be done as inserts set from inside the unit: the sash and balances come out, the new window goes into the existing frame, and the exterior is capped. Where a frame is rotted or the exterior trim has to be replaced, the outside has to be reached, and a lift or staging is priced as its own line. The bid says which openings need it.
The stairwell windows are often the largest in the building and sit over the stairs. They get their own day, from a platform built over the steps, and glass near stairs often has to be safety glass; the building official decides. On upper floors with low sills, the building code generally calls for window opening control devices, and we order windows with them where the official requires.
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
- Resident notice and a quiet time for the stairwell day
- A spot for the trailer and staged windows on the lot or street
- Any city street-use or parking permit the block needs
- Access to each unit on its day
What JMB supplies
- One measure of every unit and the stairwell
- Windows carried up and old windows carried down the stair
- Stair treads and landings covered while material moves
- Upper-floor inserts set from inside where the frame allows
- Lift or staging priced as a line where exterior work needs it
- Stairwell windows set from a platform, on their own day
- Safety glass and opening control devices where required
- Permit pulled when the job needs one
How it is priced: per unit
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- Units per floor and number of floors
- Openings that can be set from inside vs. ones that need exterior access
- Lift or staging for exterior capping or full-frame work
- Stairwell windows over open stairs
- Lot size and where material can be staged
- Brick or siding around the openings
Send photos of the front, rear and both sides, the stairwell windows, and one photo of a typical unit window from inside.
How long it takes
Typically one to two working days per unit; the stairwell takes its own day. Lead time depends on the brand and is written on the bid.
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.
Walk-Up Apartment Window Replacement — 2- and 3-Story Buildings: questions, answered
Can third-floor apartment windows be replaced from inside?
Often, yes. An insert window goes into the existing frame from inside the unit, and the exterior trim is capped. If the frame is rotted or the outside trim has to be replaced, the outside has to be reached, and that access is priced as its own line on the bid.
Do you need a lift to replace windows on a walk-up apartment?
Not for every opening. Many upper-floor windows go in from inside. A lift or staging is planned only for openings that need exterior work, and the bid shows which ones and what the access costs as a separate line.
How do you keep the stair open during the job?
Windows move up and down the stair outside the hours most residents leave and come home, the treads are covered, and nothing is stored on the stair. The stairwell windows get their own day, and the stair is passable at the end of it.
Do stairwell windows in an apartment building need safety glass?
Glass near stairs and landings often has to be safety glass under the building code. The building official decides for each opening, and we order tempered or laminated glass where it is required.
Do upper-floor apartment windows need limiters?
The building code generally calls for window opening control devices on upper-floor windows with low sills in apartment buildings, and they must still release for emergency escape. The building official decides; we order the windows with the devices where they are required.
Where does the trailer go on a walk-up with no parking lot?
We plan it with you during the walkthrough: a driveway, the back lot or the street. If the city needs a permit to use the street or a parking space, the owner or manager arranges it and we note it on the bid.
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 apartment buildings pages
Where we work
Apartment & Multifamily Window and Door Projects near you
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