Can you spray a metal garage door? Yes — steel, aluminium, GRP, timber and uPVC. The substrate-by-substrate guide from Plymouth's respray specialists.
Short answer: yes — every common garage door material can be sprayed. Steel, aluminium, GRP composite, timber and uPVC each behave differently and need different primers. Here's the honest substrate-by-substrate guide.
Galvanised or pressed-steel up-and-over and sectional doors dominate Plymouth garages. They spray brilliantly with the right prep:
A properly prepped steel garage door respray lasts 10+ years. The killer for cheap jobs is skipping the rust treatment stage — if there's any rust under the new paint, it'll bloom through within 18 months. We never skip it.
Modern premium garage doors are often aluminium — Hörmann, Garador and similar. Aluminium has its own oxide layer that interferes with paint adhesion. We use a self-etching primer specifically designed for aluminium before topcoat. Once primed correctly the finish is genuinely better than the original factory paint — flatter, more uniform, and you can have any colour rather than the factory's eight options.
GRP doors are increasingly common on new-builds. They're moulded resin-and-glass-fibre — non-porous, slick, surprisingly hard to paint without preparation. We:
GRP doors respray beautifully — the finish often outlasts the original moulded colour.
Older Plymouth properties often have timber garage doors. These need:
Timber doors are the most variable — a sound 1970s timber door takes paint beautifully; a rotted one needs significant repair before paint. We assess at the home visit.
Same process as uPVC windows — see our uPVC durability guide. Adhesion-promoter primer, UV-stable topcoat, 10-year guarantee.
Roller doors are typically powder-coated aluminium or steel. The substrate is fine to spray — but spraying a roller door without removing the curtain is impossible (it'd seize). For roller doors we either:
The workshop option gives a better finish. We discuss which is appropriate on the home visit.
No problem. If the old paint is sound and well-adhered, we scuff-sand and spray over it. If parts are flaking or peeling, we strip those areas back to clean substrate first. We can also strip a door fully if you'd prefer (adds time and cost).
We mask the glass — same as we do for uPVC windows. Final finish has clean lines around the glass with no overspray.
Send photos and we'll usually identify it. On the home visit Dean checks the door type, condition, and any rust or repair. You don't need to know the technical material — that's our job.
Yes. We use an etch-primer designed for galvanised metal and zinc-rich rust converter for any rusty areas. 10-year paint guarantee.
Yes, with a self-etching primer designed for aluminium. The finish typically outlasts the original factory paint.
Yes. Either by disconnecting the curtain and spraying it flat in our workshop, or by spraying it in situ fully extended. Workshop option gives a better finish.
Surface rust is included in standard pricing — we wire-brush, treat with rust converter, then prime before topcoat. Heavy rust adds a small uplift but is fixable on almost all doors.