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NorthwestWindow Co.

How it works

From first call to final fit

Buying windows should be simple. Here is exactly what happens, in what order, and roughly how long each stage takes.

Window and door samples on display in a showroom1

Step 1

Tell us what you need

Use the quote form, phone us or call in at the showroom. Rough sizes and a few photographs are plenty to begin with.

We reply with a clear, itemised guide price, usually within one working day. Nobody will turn up uninvited, and nobody will ring you every evening for a fortnight.

  • Free, no-obligation quotation
  • Itemised, so you can see what each window costs
  • Advice on styles, glass and colours if you want it
A surveyor measuring a window opening with a steel tape2

Step 2

Survey and final design

If you are happy with the guide price, our surveyor visits to measure every opening, check lintels and cills, and agree the details with you: which panes open, handle heights, glass patterns, trickle vents.

You then receive a final written quotation and a drawing of each frame as it will be made. Nothing goes into production until you have approved it.

  • Measured by the person responsible for the fit
  • Fire escape, safety glass and ventilation checked
  • Fixed price confirmed in writing
Gloved hands fitting a gasket to a window frame on a workbench3

Step 3

Made to measure

Your uPVC windows and doors are made in our own factory, typically within 5 to 14 working days. Composite doors, bifolds and other products made by our partners usually take 15 to 25 working days.

Each frame is cut, welded, fitted with its hardware, glazed and checked against your order before it is wrapped for delivery.

  • Made for your openings, to the millimetre
  • Checked against the survey before leaving
  • We ring to agree a fitting date that suits you
A fitter setting a new window into a brick opening4

Step 4

Installation day

Our fitters lay dust sheets, remove the old frames carefully and fit the new ones level, square and securely fixed. Frames are sealed outside, trimmed and finished inside, and every opener is tested.

Most houses take one to three days. We take the old windows away, and leave the house clean.

  • Your home protected and left tidy
  • Old frames and glass removed and recycled where possible
  • A walk-round with you before we leave

After the fit

What happens once we have gone

  1. 01

    Handover

    We show you how everything opens, locks and cleans, and hand over the keys.

  2. 02

    Certification

    Replacement windows and doors must comply with Building Regulations. We arrange the certification and you receive the certificate for your records.

  3. 03

    Guarantee

    Your written guarantee follows: 10 years on our uPVC frames and 5 years on sealed units.

  4. 04

    Aftercare

    If anything is not right, ring us. You will speak to the company that made and fitted your windows.

Typical timings

How long will it take?

Guide price
Usually within one working day
uPVC windows and doors made
5 to 14 working days
Composite doors and bifolds
15 to 25 working days
Fitted installation
3 to 7 weeks from order

Timings are a guide and vary with the season, the product and the size of the job. We confirm dates when you order.

Supply-only

Fitting them yourself?

Builders, installers and capable DIY customers can skip the survey and order frames made to their own sizes. Send us your measurements, approve the order sheet, then collect from the factory or have the order delivered.

Ready to take the first step?

It takes a couple of minutes to tell us what you need, and costs nothing to find out the price.