Window Colour Options for an Extension and Porch

A single question, answered three times

A building contractor had every element of this design settled except the colour of the new windows and doors, and wanted to see the options on the real elevation before ordering materials. A sample card cannot show how black, grey or white behaves against dark timbers and pale render from across the street, so the elevation itself had to do the talking.

A single front view was chosen rather than front and rear. The view was set up once and then rendered again with nothing but the joinery colour changing. That makes the comparison fair, and the decision quick, before an order is placed and a wrong guess becomes expensive.

How black, agate grey and white behave

The house is a mock-Tudor semi-detached pair with a proposed extension and a porch, framed in dark timber with pale panels between. Black outlines each pane crisply and gives the front a graphic, confident look. White recedes into the render and softens the whole elevation. Agate grey sits between them, a muted tone that picks up the roof slate and the planting.

In every version the front door follows the window colour, which is easy to overlook when comparing swatches. Light, sky, camera and planting are identical across the three, so the eye compares colour and nothing else.

One setup, three issues

The black version went first, with agate grey and white following four days later. All three were issued between 18 and 22 November 2024. Because the model and camera were already fixed, the later variants were a matter of swapping one finish rather than rebuilding a scene, which is why the extra options cost little time.

The same approach suits roof tile, brick, render colour, garage doors or gutters. Our 3D exterior rendering service builds the elevation once and varies the one thing still undecided, which keeps the comparison honest.

Briefing a colour comparison

Colour on screen is never identical to colour on a frame. Use the render to judge proportion and contrast, then confirm the final shade against a physical sample in daylight. A study like this is most useful when the options are genuinely different from one another, so cut the list to the choices you would honestly consider. If a manufacturer offers the same shade in a woodgrain foil and in a smooth paint, tell us which one you are ordering, because the two catch light differently on a frame. State the finish of the glazing bars too, since white bars read very differently from dark ones at street distance.

• Send manufacturer colour names or codes for each option, not screenshots.
• Say whether frames and doors should always match, as they did here.
• Tell us the finish, such as gloss or matt, since it changes how light sits on the frame.
• Keep the options to three or four so differences stay easy to judge.