Home DIY

Overspray gets everywhere.

You'd need to move everything out of the room and cover absolutely everything else. Apart from that, they work really well if you know what you're doing.

Should definitely use an airless sprayer if possible.

My decorator did this. Required a lot of masking/removal of everything that wasn't due to be painted. Makes sense with big empty rooms I guess.

If you mask up well beforehand then they can be quite good. I painted the inside of my garage walls with the £30 HVLP sprayer from Amazon https://www.amazon.co.uk/gp/product/B07BFF4PVX/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=youtubeco0322-21&linkId=a80898c8e05a88eb985cac086528190a&language=en_GB
as featured on https://www.youtube.com/watch?v=fwgxAEWUlgA

Thinning the paint was a bit of a pain but once we knew what proportion of paint to water we needed we could just repeat as necessary. It gets hot too, which dries the paint on the nozzle so you need to pick that off every now and again to clear it.

We did need a lot of coats, but even so it covered a large area faster than a roller.
The finish is great, and is really the only way to paint uneven and porous surfaces such as breezeblocks or old brickwork, plus the paint stabilises the surface, so less prep is required.

I imagine they are also the only decent way to paint Farrow & Ball modern emulsion which is fucking awful stuff to brush or roller on.

I sprayed some built in wardrobes, alcove units and coving in my old flat.
On flat surfaces the finish is great but it really came into its own on the coving which was really intricate with lots of reliefs.
As mentioned there’s a lot of overspray but it’s manageable if you mask properly.