Custom Aluminum Window Workshop

Cut, assemble and fit made-to-order aluminum windows and storefronts for builders and homeowners.

Startup cost$25k to $90k
Monthly revenue$8k to $35k
Time needed30+ h/week
First incomeMonths
  • $25k-90k
  • Full-time
  • Own premises
  • Licence or permit needed

Estimates for a small start in the US, not guarantees.

Official data

1,027 US businesses with employees in this field, +0.9% in a year

NAICS 332321 “Metal window and door manufacturing”. Source: U.S. Census Bureau, County Business Patterns 2023.

What it is

A small shop that cuts aluminum extrusions to size, assembles frames, fits glass and installs the finished windows. Typical jobs are custom sizes, replacements and small commercial storefronts.

Your first three steps

  1. Set up accounts with aluminum extrusion and glass suppliers and compare their prices and lead times
  2. Visit local contractors and remodelers to ask what sizes or repairs they struggle to source, and get a trial order
  3. Price a small rented unit and the key tools (miter saw, crimper, glazing tools), and check zoning with your city or county
Who pays

General contractors, remodelers, property developers, landlords and homeowners who need non-standard sizes.

How it makes money

Quoted price per window or per job covering materials, glass, labor and installation, with repeat work from a few reliable contractors.

Skills that help
  • Measuring accurately and reading plans
  • Metalworking and assembly with hand and power tools
  • Quoting jobs and managing customers
Watch out for
  • Many states and cities require a contractor license to install windows, check your state licensing board
  • Local building and energy codes, plus any product approvals for impact or wind ratings in storm-prone areas
  • Safety glass rules and safe handling of heavy glass
  • Lead-safe work rules (EPA RRP) when replacing windows in older homes, check if they apply
  • General liability, workers' compensation once you hire, and a vehicle for deliveries and installs

🔒 Full research report for US

Real cost breakdown with current prices, licences and registration checklist, local competition, pricing, break-even and a 30-day launch plan, with sources.

Coming soon

Questions people ask

How much does it cost to start an aluminum window workshop?

Startup costs are typically around $25,000 to $90,000, depending on your equipment, premises, vehicle and stock. These are estimates, so get quotes for your own setup before committing any money.

How much can a custom aluminum window workshop earn?

Monthly revenue is typically estimated at around $8,000 to $35,000, depending on how many jobs you win, the size of each job and whether you take commercial storefront work. That is revenue before costs, with roughly 30 hours a week or more.

Do I need a license to install windows in the US?

Many states and cities require a contractor license to install windows, so check your state licensing board. Also check local building and energy codes, any product approvals for impact or wind ratings, and EPA lead-safe (RRP) rules for older homes.

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