The useful answer
Choose aluminium finishes using physical samples, in the light where they will be installed. A colour code identifies part of the specification; texture, sheen, coating range and hardware finish can still make two products look different.
Build a small material board before approving the order
Place the frame sample beside brick, render, paving and interior flooring. Look at it outside and inside, in daylight and under evening lighting. Large dark frames can read differently against pale walls than they do in a brochure. Screens and printed images are useful for shortlisting but not for final colour approval.
Record the complete finish description for each product and each face. Include handles, hinges, trickle vents and visible cappings where relevant. If buying doors, windows and roof glazing from different ranges, ask for samples from each: a shared colour name does not guarantee an identical finish. Confirm cleaning requirements and any exposure-specific specification for the site before placing the order.
A situation you can apply to your own project
A project uses anthracite doors, windows and a roof lantern. One quote has a textured coating, another a smooth matt finish and a third different-coloured internal cappings. Laying out the samples and a face-by-face finish schedule exposes the mismatch before delivery. The result can be intentionally coordinated without assuming every component is identical.
Compare the practical details
| Decision | What it means for your project |
|---|---|
| Colour | Record the exact code and supplier’s description. |
| Texture and sheen | State smooth, textured, matt or another specified finish. |
| Inside and outside | List each face separately, even where the colour is the same. |
| Hardware and accessories | Confirm handles, hinges, cappings and vents rather than assuming a match. |

Work through the specification
Make a finish schedule
Assign one finish specification to each opening. Include bars, cills and trims so ancillary parts do not become a last-minute mismatch.
Look at samples in the room
Review samples against flooring, wall finishes and exterior materials in the light where they will be used. Product photography is useful for inspiration, not final approval.
Ask about care for the actual location
Follow the selected supplier’s cleaning and maintenance instructions. Discuss exposed or coastal locations before specifying the coating and confirming its warranty terms.
Your checklist before the next conversation
- View physical samples in place
- Record finish codes and textures
- Approve hardware alongside frames
- Check site-exposure suitability
- Keep a labelled sample or reference with the order
