STEP 1 - CLEAN : New Surfaces - Remove all dust from surfaces using a soft cloth or a soft bristle brush-use a soft bristle broom to brush down new plasterboard.
Note: always ensure you have adequate eye and breathing equipment. Wear rubber gloves, protective clothing and protective eyewear. Previously Painted Surfaces - Wash down surfaces prior to repainting to remove surface grime.
STEP 2 - FILL :
Any surface imperfections and gaps with appropriate filler for the job. Never overfill. Always fill the imperfection flush with the surface even if it means having to refill 2-3 times due to shrinkage. It is much easier to refill than to sand back too much filler.
STEP 3 - SAND :
It is important to sand all previously painted surfaces prior to painting. Sand the shine off the surface in order to provide a good surface for the paint to stick to. Remember to once again use protective equipment and to dust the surface prior to painting. Always sand woodwork in the direction of the grain to avoid permanent scratches in the surface.
STEP 4 - PAINT :
Using a 3 coat system will generally give you the best results. This consists of a surface primer/undercoat, followed by 2 coats of the finishing product. Lightly sand in between each coat.
Always work an area from top to bottom. This is important so you don't damage the work you have already done. e.g. Ceiling first, then walls, then the skirting boards. e.g. Guttering, facia, eaves and weatherboards from top to bottom.
Always brush the edges (cutting in) first prior to rolling. e.g. Cut in one ceiling, then roll it. Cut in one wall, then roll it.
When painting outside always work out of the sun.
Always paint the surface when the cutting in is still wet, this will help you keep a wet edge and avoid a poor finish. Always paint a wall starting at a corner from left to right, or right to left, whatever is more comfortable for you. Paint the wall from top to bottom starting from the centre of the surface and working the paint towards the top and bottom.
Do not paint the wall in patches as this is the finish you will achieve - patchy. When you start a wall always make sure you finish the complete coat before walking away to avoid a patchy finish.