Use some elbow grease or a power washer.
Cleaning white aluminum gutters.
A simple solution of water and white vinegar works very well for cleaning the outside of the gutters and won t corrode aluminum.
Use a soft bristled scrub brush with a pole attachment to gently remove the gunk from the outside of the gutters.
Close off your gutters by plugging the downspouts and pour the vinegar solution into your gutters and let it sit for an hour or longer.
But ours were really bad and needed a bit of elbow grease to scrub off the heavy buildup.
Combine white vinegar with warm water.
The gutters have a very thin coat of baked on paint.
You can also make a paste with a small amount of water and cream of tartar which will act as a cleaner and gentle buffing agent in one.
If your gutters aren t too dirty you can probably skip this step and go straight on to the rinsing part.
For aluminum try gutter zap which removes electrostatic bonded streaks with little scrubbing.
F 13 gutter grenade is a multipurpose gutter cleaner that s safe for all types of gutters.
After draining the vinegar solution out rinse the gutters out thoroughly then use a scrub brush to scrub out any remaining dirt.
You have to be careful with some cleaning solutions on aluminum gutters.
Cleaning gutters using white vinegar while you re at it you might as well scoop all the leaves and other debris out of your gutters if you haven t already done so.
It attacks the oxidation and not the paint or material.
I used a product that was meant for cleaning plastic garden furniture because it also cleaned almost everything else that regular cleaners could not and after spraying it on the gutters and wiping it off it started to dissolve the baked on paint and i had to stop.
Before you begin make sure to scoop out all the dried leaves and debris to free your gutters from any clogging material.
Cream of tartar gutter solution.
Aluminum readily welcomes a solution of warm water and acetic acid more commonly found in the kitchen as white vinegar after scooping the gunk from your gutters with the trowel mix a bucketful of solvent using 1 cup of vinegar for every 3 gallons of water.