Andersen 100 Series Casement Replacement
You want a casement in black or bronze from a Minnesota maker without the price of a wood window.
Reply within one business day. Or call / text 763-250-3621.
Andersen 100 Series casement replacement puts a crank-out window made of Andersen's Fibrex composite in the opening, in White, Sandtone, Terratone, Dark Bronze or Black, with Finelight grilles between the glass and Low-E4 glass, as an insert or with a nail fin. JMB Builders measures each opening, 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, 100 Series casement included
- Fibrex composite frame, dark colors available
- Insert or nail-fin frame, decided at the measure

The 100 Series is Andersen's composite line: frame and sash made of Fibrex, a mix of reclaimed wood fiber and polymer, instead of vinyl or wood. The casement cranks open on hinges at the side and pulls tight against the frame when it closes. The frame is slimmer than most vinyl casements, which means more glass for the same opening, and the material holds dark colors.
Colors are White, Sandtone, Terratone, Dark Bronze and Black outside, with White or Sandtone inside, or Dark Bronze and Black interiors behind the matching exterior. Finelight grilles sit between the glass; full or simulated divided lites are options. Glass is Andersen's Low-E4 with argon, with SmartSun for a west or south wall and HeatLock as a room-side upgrade. The 100 Series is dual-pane only. Hardware is a folding crank in several finishes, and a screen is included.
The casement comes as a replacement insert for a sound existing frame or with a nail fin for an open wall. We measure each opening, write which on each line, check egress where the room is a bedroom, order through ABC Supply, our supplier, and install. We are the installer; options such as Andersen, MI and ProVia casements all go through the same measure.
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 casement opening from inside and out
- Exterior and interior color, and hardware finish
- Hinge side for each casement, or a pair that opens from the middle
- Grille pattern between the glass, or none, and glass option
- Paint or stain color for new 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 every opening and an egress check in bedrooms
- The Andersen 100 Series casement, ordered through ABC Supply to your sizes and hinge sides
- A line-item quote by opening, with the 400 Series casement beside it if you want to compare
- Removal of the old window and haul-away
- Insert install with sealant, or fin install with sill pan and flashing tape
- Low-expansion foam, backer rod and sealant inside and out
- Interior stops or casing and exterior capping or trim matched to the frame color
- Crank, hinges, lock and screen adjusted, and photos 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:
- Casement size, and single sash vs. a pair or a casement-and-picture set
- Insert vs. nail-fin install
- Dark Bronze or Black vs. White, inside and out
- Glass option and grilles
- Rot at the sill or frame once the old window is out
- Second-story or dormer openings that need a lift
- Interior casing kept, new stops or new casing
If you have an Andersen quote from another installer, send it with your photos. Ours lists the same openings so you can compare line by line.
How long it takes
Lead time depends on the order and is written on the quote. Casement inserts install at several per day; fin installs take longer per opening.
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
Black 100 Series casements
Black outside and, if you want it, black inside. The Fibrex frame carries the color through the material rather than as a surface coat. Exterior capping and trim are matched.
Casement pair for bedroom egress
A casement opens its full width, so a pair in a bedroom can meet the egress size a slider or single-hung of the same frame cannot. We check the clear opening before the order.
Casements beside a 100 Series picture window
A fixed center with a casement on each side, mulled or trimmed as one set, all in the same Fibrex color. The usual answer for a living-room front.
Andersen 100 Series Casement Replacement: questions, answered
What is the Andersen 100 Series casement made of?
Fibrex, Andersen's composite of reclaimed wood fiber and polymer. The frame and sash are solid composite with no wood inside to rot and no vinyl to soften in heat. It lets Andersen offer slimmer frames and dark colors on this line.
Does the Andersen 100 Series casement come in black?
Yes. Exteriors are White, Sandtone, Terratone, Dark Bronze and Black. Black and Dark Bronze interiors are available with the matching exterior; otherwise the interior is White or Sandtone. Hardware finishes are chosen to match.
Can an Andersen 100 Series casement go in my existing frame?
Yes, the replacement version is sized to the inside of a sound existing frame. When the frame is rotted or out of square, or the siding is coming off, the nail-fin version goes in and is flashed to the sheathing. We decide per opening at the measure.
Is the 100 Series casement dual-pane or triple-pane?
Dual-pane. Andersen's Low-E4 glass with argon is standard, with SmartSun for sunny exposures and HeatLock as a room-side upgrade. For triple-pane, Andersen's 400 Series or options such as ProVia Endure are the lines to look at.
How does the 100 Series casement compare to the 400 Series casement?
The 400 is a wood casement with a vinyl exterior and a pine interior for stain; the 100 is all composite with a painted-look interior. The 400 has more colors and glass choices. The 100 costs less and holds black well. We can price both on one quote.
Who orders and installs the Andersen 100 Series casement?
We do. Each opening is measured in person, the casements are ordered through ABC Supply to those sizes and hinge sides, and our crew installs them. If you already bought Andersen casements, 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.
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Read morePage reviewed October 27, 2026 · JMB Builders LLC, MN license BC809005 · All windows pages
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