Quick answer: Name the file after the work and town, write honest alt text, compress, and caption with a fact.
Images can rank and they always affect speed. Treat them as content. This guide is written for businesses in the UK and Kent, Surrey and Greater London.
File names
boiler-repair-maidstone.jpg beats IMG_4032.jpg.
Alt text
Describe the picture. Do not stuff the keyword twice.
Speed
Width-sized images. Lazy-load below the fold. Not the logo.
Us
SEO Friendly Website Design compresses and labels images on every build. Send yours.
Frequently asked questions
Do SVGs need alt?
If they convey meaning, yes. Decorative icons can be empty alt.
WebP only?
WebP or AVIF plus a fallback if you still support old browsers.
Can screenshots rank?
Yes for how-to queries. Caption them.