MI 3500 Double-Hung Replacement Windows
The siding is coming off, or the old frames are too far gone for an insert.
Reply within one business day. Or call / text 763-250-3621.
MI 3500 double-hung replacement windows use the double-hung from the same MI series as the 3500 single-hung: a vinyl window with a nailing fin, built for a wall open to the sheathing, so it fits a siding job or a full-frame replacement where the old frame comes out. JMB Builders measures, orders through ABC Supply and installs across the Twin Cities metro. Priced per window. Send photos and we reply within one business day, or book a free in-home estimate.
- Priced per window, fin-frame double-hung included
- Both sashes tilt in; the 3500 single-hung tilts one
- Sill pan and flashing at every opening
MI's 3500 is a single-hung, and it is the window most people picture when they say MI 3500. The same series has a double-hung with the same fin frame and the same look from outside, and that is the window this page is about. Both sashes move and tilt in, which matters on a second floor where the top sash is the only one you can reach to clean from inside.
A fin-frame window is for an open wall. The siding comes off around the opening, or the whole wall if it is being re-sided, the old window comes out to the rough opening, and the new unit is set on a sill pan with its fin nailed to the sheathing and taped at the sides and head. That is the install that keeps water out for the life of the window, and it is the one to choose when the old frames are rotted or when the house is getting new siding anyway.
White is standard, with other colors varying by plant and confirmed for your order. Grilles go between the glass. Glass is dual-pane with Low-E and argon available, and triple-pane on request. The order goes through ABC Supply, our supplier, to the rough-opening sizes from our measure, and we install it. We are the installer; options such as MI, Silver Line and Ply Gem fin windows are ordered and set the same way.
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 763-250-3621.
What you supply
- Photos of each window inside and out, and a wide shot of the wall
- Whether new siding is part of the job, and who is doing it
- Frame color, grille pattern and screen type
- Paint or stain color for new interior casing: Painting is quoted as a separate line — or leave it primed and caulked and paint it yourself.
What JMB supplies
- In-person measure of each rough opening, or of the old frame if the wall is still closed
- The MI double-hung with nailing fin, ordered through ABC Supply to your sizes
- Removal of the old window and frame down to the rough opening, and haul-away
- Rot repair at the sill and jambs, quoted from what we find
- Sill pan, fin fastening, flashing tape at jambs and head, and a head flashing where the siding needs it
- Low-expansion foam, backer rod and sealant inside and out
- New interior casing and stool, primed; exterior trim or J-channel to suit the siding
- Photos of the finished windows in your job folder
How it is priced: per window
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- Window size and how many openings are on the order
- Whether the siding is already off (siding job) or has to be cut back and patched
- Color beyond white, grilles and the triple-pane option
- Rot in the sill, jambs or sheathing once the old frame is out
- Interior casing and stool replaced on every opening
- Second-story openings that need scaffold or a lift
- Stucco or brick at the opening instead of lap siding
If a siding crew is doing the wall, send their schedule with your photos. The windows should be set and flashed before the new siding goes on.
How long it takes
Lead time depends on the order and is written on the quote. Full-frame fin installs run fewer per day than inserts, each opening closed and flashed the same day.
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
Double-hungs during a siding job
The best time for a fin window. The wall is open, the fins are nailed to the sheathing and taped, and the siding goes on over them. Nothing is cut back or patched.
Full-frame replacement in a closed wall
The siding is cut back around each opening, the old frame comes out, and the fin window is set and flashed. New exterior trim covers the cut edge. It costs more than an insert but fixes a rotted frame for good.
Mixed order: fin double-hungs and 3500 single-hungs
Some owners keep single-hungs on the main floor and put double-hungs upstairs where tilt-in cleaning matters. Both come from the same series in the same color on one order.
MI 3500 Double-Hung Replacement Windows: questions, answered
Is the MI 3500 a double-hung or a single-hung?
The 3500 is a single-hung: the top sash is fixed and the bottom one slides and tilts. The double-hung in the same MI series has two moving sashes and the same fin frame. We order whichever you want, and both can be on one order in one color.
When should I pick a fin-frame window over an insert?
When the wall is open for siding, when the old frame is rotted or out of square, or when you want the new window flashed to the sheathing instead of sealed to an old frame. When the frames are sound and the siding stays, an insert such as the MI 1650 is less work and less trim.
Can a fin window go in without new siding?
Yes. The siding is cut back a few inches around the opening, the fin is fastened and flashed, and new exterior trim covers the cut. On vinyl siding we use J-channel or a trim with a built-in channel. On stucco or brick the detail changes and we quote it per opening.
Do the sashes on the MI double-hung tilt in?
Yes, both of them. That is the reason to pick the double-hung over the 3500 single-hung on a second floor, where the outside of a fixed top sash is otherwise a ladder job.
What colors can I get on an MI fin double-hung?
White is standard. Other exterior colors depend on the plant the order ships from, so we confirm the list with ABC Supply before the quote is final. A black exterior is popular on new siding; if MI cannot do it for your order we price another line next to it.
Who measures and orders the MI double-hungs?
We do. The rough opening is measured in person, the fin windows are ordered through ABC Supply to those sizes, and our crew sets and flashes them. If you already bought MI windows for a siding job, we install those labor only.
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.
Related jobs we do
MI 3500 Casement Replacement Windows
The builder put MI 3500 windows in your house and now the kitchen or the bedroom over the garage needs a crank-out. Here is how the casement is matched and installed.
Read moreMI 1650 Double-Hung Replacement Windows
Your old wood double-hungs rattle and the glass sweats, but the frames and trim are sound. The MI 1650 is the window built to slide into that frame.
Read moreMI 1650 vs 3500 for a Whole House
Two MI window numbers keep coming up in quotes and you want to know which belongs on your house. The answer is about the wall, not the window.
Read moreMI Windows Installation, Labor Only — V4500, V3000 and V2000
You got MI windows through a dealer at a good price, and the dealer does not install or cannot get to you soon.
Read moreFull Frame Window Replacement — Old Window Out to the Rough Opening
The frame is rotted, the sill is soft, or you want the most glass the opening allows. Full frame takes it all out and starts over at the studs.
Read moreReplace Every Window Before the Siding Job
You are residing the house next season. The windows should go in while the walls are open, not be patched into new siding a year later. Here is how the two jobs line up.
Read morePage reviewed October 27, 2026 · JMB Builders LLC, MN license BC809005 · All windows pages
Where we work
Window Replacement & Installation near you
Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: