Apartment Window Replacement in St. Paul — Multifamily Buildings
Your St. Paul building came back from its Fire Certificate of Occupancy inspection with window and door items, or the windows are simply worn out across the building.
Reply within one business day. Or call / text 763-204-2099.
Apartment window replacement in St. Paul: JMB Builders bids multifamily buildings unit by unit, with every window, patio door and unit entry door measured in person and ordered as one package. Before we bid, we check St. Paul's contractor license and permit rules for that building. If a Fire Certificate of Occupancy inspection named the windows, the bid lines up with those items. Priced per unit; photos get a reply within one business day, or book a free in-home estimate.
- Priced per unit, bid line by line
- Lines matched to C of O inspection items
- City license and permit checked first

In St. Paul, almost every rental building other than an owner-occupied house or duplex has to hold a Fire Certificate of Occupancy. The city inspects the rental units, the common areas and the utility areas, grades the building, and sets how often it comes back by the number of deficiencies per unit. Windows that do not open, close or lock, broken glass, missing screens and unit doors that do not latch are typical line items. When the windows are the problem across the building, fixing them one order at a time gets expensive.
We turn that list into a bid. Each unit gets its own lines: which windows, which doors, insert or full frame, glass, screens and interior trim. Items from the inspection are marked so you can show the inspector what was corrected, and the rest of the building can be added now or phased. The order goes in once, so the frame color and glass match from the first floor to the top.
St. Paul's own building contractor license is written for residential buildings of up to four units, and the city reportedly does not require it for buildings of five or more units, while commercial permits ask for the state license number. We confirm that with the city before we bid your building. Our job log has five window and door installs in St. Paul from April through July 2026, through dealers and builders.
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 latest Fire C of O correction notice, with compliance dates
- Unit list, with occupied and vacant units marked
- Resident notices and keys or a caretaker for access
- One spec decision for the building: brand, color, glass
- Whether common-area and stairwell windows are in or out
What JMB supplies
- A walk of every unit, stairwell and common area to measure each opening
- A bid by unit, with inspection items flagged
- One order for the building, lead time written on the bid
- City license and permit check, and the permit pulled where required
- Installs one unit at a time, each opening closed before we leave
- Drop cloths in the path, old windows hauled away
- Photos of each corrected item, filed by unit, for your records
How it is priced: per unit
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- Number of units and openings per unit
- Which openings are on the inspection notice vs. the rest of the building
- Insert or full-frame install, decided per opening
- Brick, stucco or siding at the exterior trim
- Height of upper-floor windows and how they are reached
- Unit entry doors that are fire-rated assemblies
- Painting, quoted as a separate line
A copy of the correction notice plus photos of each side of the building lets us price the inspection items first.
How long it takes
Typically one to two working days per unit once product is on site. Lead time depends on the brand and is written on the bid; we tell you if it will not meet an inspection date so you can ask the city for 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
Correction-notice items only
The windows and doors named on the C of O notice, priced and scheduled to the compliance date where lead time allows. The spec is recorded so later units match.
Full building, phased
Every opening bid now, installed in phases by floor or by budget year, all from the same written spec.
Windows plus unit doors
Windows with patio doors and corridor unit doors. Corridor doors are often fire-rated, so they are priced as their own lines.
Apartment Window Replacement in St. Paul — Multifamily Buildings: questions, answered
Do you work on St. Paul apartment buildings with five or more units?
Yes. JMB Builders replaces windows, patio doors and unit entry doors in St. Paul buildings of five or more units. Before we bid, we check with the city which contractor license and permit apply to that building, since buildings of that size fall under the commercial building code.
Can you fix window items from a St. Paul Fire Certificate of Occupancy inspection?
Yes. Send the correction notice and we price each window and door item as its own line, with photos of the finished work filed by unit. Whether an item is accepted is up to the city inspector at the reinspection.
Does St. Paul require a city contractor license for apartment window work?
The city's building contractor license is written for residential buildings of up to four units, and the city has said it is not required for buildings of five or more units. Rules change, so we check with St. Paul's Department of Safety and Inspections before we bid each building.
How long does window replacement take per unit in a St. Paul building?
Typically one to two working days per unit once the windows are on site. A building's schedule is set by its unit count and by how many units can be opened up each day. Lead time for the product depends on the brand and is written on the bid.
Are apartment unit entry doors in St. Paul fire-rated?
Unit entry doors that open onto a common corridor are often fire-rated assemblies, with a labelled door and frame, a closer and a latch. The building official decides what your building needs. We check the labels and price rated doors as their own lines.
Do I give tenants notice before window work in St. Paul?
Yes, the owner or manager sends it. Minnesota law generally requires a good-faith effort to give at least 24 hours' notice and entry between 8 a.m. and 8 p.m. unless the tenant agrees otherwise. This is not legal advice; we give you a unit schedule so the notice is accurate.
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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