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NorthwestWindow Co.
Finished window frames on a stillage beside a van, ready for collection

Trade and supply-only

Straight from the factory floor

Made-to-measure windows and doors for builders, installers and developers, at trade prices and without the wait.

Why buy from us

A supplier that keeps your job moving

You have customers waiting and a programme to hit. We make that easier.

We are the manufacturer

uPVC frames are made in our own factory, so you deal with the people who build your order.

Short lead times

Most uPVC windows and doors are ready in 5 to 10 working days. Composite doors and bifolds take a little longer.

Made to your sizes

Every frame is made to the millimetre from your measurements. No standard sizes to work around.

Help on the phone

Unsure about a bay, a fire escape window or a cill? Talk to someone who knows the product.

Gloved hands fitting a gasket to a window frame on a workbench

What we supply

The full range, without the fitting

Everything on this site is available supply-only. uPVC windows and doors are made here; composite doors, aluminium bifolds and roof lanterns are supplied to order from our manufacturing partners.

Frames arrive fully glazed or with glass packed separately, whichever suits the job, complete with handles, keys, cills and any trims you have asked for.

  • A-rated uPVC casement, flush sash and tilt-and-turn windows
  • uPVC, composite and French doors
  • Aluminium bifolds, sliding doors and roof lanterns
  • Cills, trims, add-ons and replacement sealed units

Ordering

From sizes to site in four steps

  1. 01

    Send your sizes

    Email, phone or the quote form. A list, a sketch or a marked-up drawing all work.

  2. 02

    Quote by return

    An itemised price for every frame, usually within one working day.

  3. 03

    Confirm and we make

    Approve the order sheet and we manufacture, typically in 5 to 10 working days.

  4. 04

    Collect or delivery

    Pick up from the factory, or have the order delivered to site.

Measuring

Your sizes, your responsibility

On supply-only orders we make exactly what you ask for, so it pays to measure carefully. Our guide sets out the brick-to-brick method and the allowances to make.

Tell us about each frame

  • Width and height in millimetres, and whether sizes are brick-to-brick or finished
  • The layout, viewed from outside: what opens, and which way
  • Colour inside and out, and handle finish
  • Glass: clear or obscure, toughened where required
  • Cills, trickle vents, fire egress hinges and restrictors

Questions

Trade questions, answered

Do you sell supply-only?

Yes. Builders, installers and competent DIY customers can order made-to-measure windows and doors without fitting. Typical trade lead time is 5 to 10 working days.

Can I collect, or do you deliver?

Both. Orders can be collected from our factory or delivered across the North West. Ask us about delivery further afield.

Who is responsible for measurements on supply-only orders?

The customer. We make to the sizes you give us, so please measure carefully. Our measuring guide explains the brick-to-brick method, and we are happy to look over your list before manufacture.

Do I need a trade account?

No. Send us your sizes and we will quote. Regular customers can ask about an account once we have worked together.

What do you need from me to quote?

Overall width and height of each frame in millimetres, the layout of each window as seen from outside, the colour, the glass, and whether you need cills, trickle vents or fire egress hinges. A marked-up sketch or photograph is fine.

Do supply-only windows comply with Building Regulations?

The products meet the thermal and safety standards the regulations call for when correctly specified. Compliance of the installation itself, including ventilation, fire egress and safety glazing in the right places, is the responsibility of whoever fits them. Tell us about the job and we will help you specify it correctly.

Got a list of sizes?

Send it over and we will price it, usually within one working day.