Aluminium windows cost more than uPVC from a trade supplier, but the gap varies by size, finish and specification, so compare itemised quotes. Aluminium frames use more costly material and powder coating, while uPVC is cheaper to manufacture and lighter to handle.

What makes aluminium windows cost more?

  • Material and profile cost, including the thermal break.
  • Powder coating, especially special RAL or dual colours.
  • Longer production for mitred joints, mullions and transoms.
  • Larger glass units and higher spec glazing.

What can reduce the gap?

Standard stock colours, standard sizes and fewer opening lights. Ordering a full job at once also simplifies pricing.

What should a trade price compare?

  • Frame spec, including thermal break and Uf value.
  • Glass spec and Ug value.
  • Finish and any colour surcharge.
  • Delivery and lead time.

For trade pricing on aluminium windows, contact the MLI Worthing trade counter. Delivery is free within 30 miles.

Is aluminium worth the extra for a trade customer?

It can be where the customer wants slim frames, dark or dual colours, or large panes. For standard white casements in existing openings, uPVC is usually the better value choice.

Need a trade price? Call the trade counter on 01903 262 636 or visit us at Unit 1, Friar Walk, Worthing. We offer free delivery within 30 miles.

← Back to Supply Only Aluminium Windows and Bifold Doors FAQs | See our supply only aluminium

MLI Building Products LTD place picture
4.6
Based on 15 reviews
Peter Hughes profile picture
Peter Hughes
2 years ago
Davyd Oddy profile picture
Davyd Oddy
3 years ago
Great service and products from super friendly staff. Specials thanks to Loretta and Stephen
Stephen Gale profile picture
Stephen Gale
4 years ago
Great service good bunch lads
Response from the owner
4 years ago
Thanks Steve.
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4 years ago
Kimberleyjanep profile picture
Kimberleyjanep
4 years ago
So helpful - Steve was so patient while I chose my new front door - which was installed by PBM Exteriors who recommended MLI. I cannot emphasise how much my new and very contemporary front door makes the house look so modern and 'new'. Just huge thanks for great service and an amazing grey anthracite grey front door and side panels!
Photo from customer review
Response from the owner
4 years ago
You were very welcome Kim. It was our pleasure.
Elliott Prior profile picture
Elliott Prior
5 years ago
Response from the owner
5 years ago
Thank you Elliott
Richard Jones profile picture
Richard Jones
5 years ago
Great people to do business with!
Response from the owner
5 years ago
Thank you Richard.
So pleased I found MLI to supply the windows and doors for my property renovation, Excellent Prices, far more competitive than any other quote I had. Service from Steve & Loretta was amazing, nothing was too much trouble. Everyone compliments us on the fantastic windows. I highly recommend. Thank you so much
Response from the owner
6 years ago
Hi Penelope. Thank you very much. 👍🏻
Nigel Alderman profile picture
Nigel Alderman
7 years ago
Friendly efficient service
Response from the owner
4 years ago
Thank you Nigel.
sohel isat profile picture
sohel isat
7 years ago
Used to go there for delivery
Response from the owner
4 years ago
Thank you Sohel.