How Long to Replace Windows in an Apartment Unit — Days per Unit
You need to tell tenants, owners and the lender how long the window job will take, unit by unit and for the whole building.
Reply within one business day. Or call / text 763-204-2099.
How long to replace windows in an apartment unit depends on the opening count, install method and trim: typically one to two working days per unit once the windows are on site, every opening closed each night. JMB Builders is one crew, so a building takes the unit count times that, plus weather days, written on the bid. Twin Cities metro to St. Cloud; photo reply within one business day or a free estimate and walkthrough.
- Typically one to two working days per unit
- One crew, units done in order
- Schedule by unit written on the bid
There are two clocks on an apartment window job. The first is lead time: from the signed order to windows on site, which depends on the brand and is written on the quote. The second is install time, and that is mostly a question of days per unit.
A typical unit with a few windows and maybe a patio door runs one to two working days. What pushes a unit toward the long end: full-frame installs instead of inserts, rot at the sill that has to be cut out, new interior trim instead of reusing it, exterior capping on each opening, a patio door in the same unit, and upper-floor openings that need ladders or lifts set from outside. A studio with two insert windows can go faster.
JMB Builders is one crew. That keeps one set of hands and one contact on the job, and it means units go in order rather than all at once. A building's schedule is roughly its unit count times the days per unit, plus weather. Rain stops exterior capping and sealant; deep cold slows sealant and caulk work. Each opening is finished and closed the same day.
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 unit list with openings per unit
- Unit access on the scheduled days
- Tenant notices sent from the schedule we give you
- Your preferred order: vacant units first, one building first, or a set start date
What JMB supplies
- Days per unit estimated from the measured opening list
- A unit-by-unit schedule on the bid
- Weather days built in for exterior work
- Daily word on which units are done and which are next
- Each opening finished and closed before the crew leaves
- Cleanup and haul-away of old windows each day
How it is priced: per unit
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- Number and size of openings in the unit
- Insert vs. full frame
- Rot repair at sills and rough openings
- Interior trim and exterior capping scope
- Patio door in the same unit
- Upper-floor exterior access
Send the unit list and a few photos of typical windows inside and out. Days per unit firm up after every opening is measured.
How long it takes
Typically one to two working days per unit once windows are on site. Building total: unit count times that, plus weather days. Lead time depends on the brand and is written 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.
How Long to Replace Windows in an Apartment Unit — Days per Unit: questions, answered
How many days does it take to replace windows in one apartment unit?
Typically one to two working days, depending on how many openings the unit has, insert or full frame, and how much trim and capping goes with it. The bid lists the days per unit after every opening is measured.
How long does window replacement take for a whole apartment building?
Roughly the number of units times the days per unit, plus weather days. JMB Builders is one crew, so units go in order. The schedule by unit is written on the bid.
Can tenants stay in the unit during window replacement?
Usually, yes. The crew works one room at a time, protects floors and furniture near each opening, and closes every opening the same day. Tenants need to clear the area in front of the windows.
Does weather delay apartment window installs in Minnesota?
Rain stops exterior capping and sealant, and deep cold slows sealant and caulk. Interior steps can sometimes continue. We build weather days into the schedule and tell you the same day if a unit moves.
Is the time between ordering and install part of the per-unit schedule?
No. Lead time from order to delivery depends on the brand and is written on the quote. The per-unit schedule starts when the windows are on site.
Do vacant units go faster?
Often a little, because there is no furniture to protect or move and no tenant to schedule around. Starting with vacant units can also show the owner the finished product early.
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
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