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Stone and timber home at dusk with a full-height black aluminum gable window

For window contractors & builders

Modern black aluminum windows. Factory direct.

The slim-frame, steel-look windows your customers are asking for — at dealer pricing, with a quoting and proposal app that puts your name on every page.

The range

Sell the windows your customer is asking about.

Casements, tilt & turns, fixed glass, French and bi-fold doors — one thermally broken system, custom-built to every opening.

  • Tilt and turn window with a wood-grain finish
  • Paired black casement windows opened over a back garden from a living room
  • Six-panel black aluminum bi-fold door system, folded open
  • Black bi-fold doors installed in a living room, opened onto a garden
  • Single black aluminum casement window, three-quarter view
  • Large black-framed picture window with transoms, lit from inside at dusk
  • Black aluminum French doors with a transom above
  • Black French doors with transom seen from inside a living room
  • Cutaway of the frame showing multi-chamber aluminum and insulated polyamide struts
  • White French doors with sidelights and transoms on a deck at dusk

You’ve lost jobs you should have won.

Not because your install was worse. Because the other guy walked in with a tablet, a brand behind him, and a proposal that made his company look twice its size. We built the other side of that.

What you get as a Jefferson dealer

01

Dealer pricing, direct

Thermally broken aluminum, custom-built to your openings, priced for the trade. We handle the factory relationship, the freight, and the customs. You write one check and the windows show up.

02

The quoting app, free

Measure, configure, and produce a finished proposal at the kitchen table. Your logo, your company, your photos. There’s no subscription and no per-seat fee.

03

No strings

No volume commitment. No requirement to lead with our product. No exclusivity contract to sign before you’ve sold anything. Sell what your customer needs, and use us when we’re the right fit.

The quoting & proposal app

Walk in. Measure. Deliver a proposal. Close more deals.

Most window quotes get emailed three days later, which is three days for your customer to call somebody else. This closes it in the appointment.

Measure the openings room by room. Build out the units. And with one click, generate a proposal carrying your branding, your past work, and one clear price — the kind of document the other guy can’t put on the table.

This isn’t a CRM. Nothing to migrate, nothing to roll out to your crew — one tool for the one appointment where you win or lose the job.

A contractor reviewing a branded window and door proposal on a tablet with homeowners

Measure on site

Room by room, opening by opening.

Configure anything

Sizes, styles, transoms, finishes.

Your branding

Your logo and your jobs on every page.

Close at the kitchen table

No “I’ll send it over tomorrow.”

What you’re selling

The look everyone’s specifying right now

Slim-frame aluminum in matte black — the designer, steel-look window that carries big glass and disappears into the architecture. Thermally broken, custom-built to your exact openings, finished in any RAL color.

It’s the product homeowners are pulling off Pinterest and handing to their contractor. Most contractors have no way to source it.

Thermally broken aluminum
Multi-chamber frame with insulated polyamide struts.
Slim sightlines
Narrow sash face, more daylight, cleaner lines.
Any RAL finish
Baked powder-coat, matte black standard.
Built to your openings
Custom sizing, no stock-size compromises.
Black aluminum bi-fold doors opened onto a garden from a living room
Installed black-framed bay window on a finished exterior

Full product line, specs, and pricing are available inside the dealer portal.

A good fit if you’re —

  • A window installer who wants to sell above the vinyl tier
  • A remodeler or design-build GC whose clients want the modern look
  • Any contractor who’s tired of losing design-driven jobs to a national brand

Not a fit if: you’re a homeowner. We sell to the trade only — if you want these windows in your house, we’ll point you to a contractor who carries them.

Request dealer pricing

Tell us where you work and what you’re building. We’ll send pricing and set up a short call to walk through the app.

We sell to contractors only. No spam, and we won’t sell your information.

Request Dealer Pricing