Aluminum Siding Painting

Professional Aluminum Siding Painting Can Get Your Aluminum Siding Look All New Again.

Aluminum siding as an exterior siding finish first became very popular in the wake of World War II, when this aluminum metal, which had been so important and crucial to the war efforts, became a whole lot more readily available. As such, aluminum siding painting became a thing decades ago, and is considered a typical and common type of every day exterior painting for residential and commercial exteriors.

Most homeowners and property owners valued the aluminum material for its exterior weather protection as exterior siding and excellent exterior insulating properties. They also seemed loved aluminum siding and aluminum siding painting in comparison with wood siding and wood siding painting. Compared to wood siding, aluminum siding requires only a little maintenance along the way.

But when the vinyl siding and vinyl siding painting arrived to the exterior siding industry in the late 1950s, the popularity of aluminum siding and aluminum siding painting seems to have rapidly fell out of favor, likely in part because aluminum siding is more prone to denting and original factory aluminum siding color faded relatively quickly without the homeowner or property owner staying on top of maintenance.

To read between the lines, that is not to say that if you do live or reside in an aluminum siding or aluminum-clad home or property, that for sure you should replace your siding. On the contrary, those qualities and attributes that once made aluminum siding popular and a favorite then are as appealing today as they were in the 1940s. Aluminum siding and aluminum siding painting remains low cost and a low-maintenance, first-rate insulating barrier against the weather and the elements for your exterior.

You know best if your aluminum siding needs painting. It's a common type of exterior painting for a common type of exterior siding finish. So long as your exterior aluminum siding is maintained and performing well to your satisfaction, consider staying on top of the minimal maintenance required by preserving. Cleaning, patching, sanding, dusting, and then painting your siding with an airless paint spray machine is the way the professionals of the professionals do it.

Some of the painters and contractors out there that you might get price quotes or estimates from might tell you they will brush and roll in your aluminum siding. This is not the best exterior painting strategy for aluminum siding. Spray painting aluminum siding painting is the way the pros do it. 

A professional painter that specializes in exterior painting can get a whole lot more paint on to your aluminum siding using a spray painting machine compared to using the old brush and roller. That's more protection from more paint, and you get a premium spray painting finish that simply can't be beat.

Don't do it yourself if you have not previously completed at least a dozen or so exteriors. Lucky for you that you can get a pro to do it for you fast, cheap, and easy. Receive free, no-commitment estimates from pro painters near you by calling in our professional Calgary Painters

Our fast and friendly exterior painters and decorators can help you with all types of siding painting including stucco painting, wood siding painting, metal siding painting, vinyl siding painting, and pretty much any type of exterior surface that can actually be painted. But, if you want to do it yourself, the guide below will help.

Before You Begin - 

Before painting aluminum siding, you may find it necessary—or merely desirable—to replace any sections that have been dented or otherwise damaged. After all, one virtue of this cladding material is that it lends itself so easily to repair work. Follow these simple steps:

Draw a square around the section of damaged aluminum siding that you would like to remove.

Cut away the section, using tin snips in combination with a utility knife, leaving a clean, square hole to patch.

Cut the replacement patch to size (three inches larger than the section you initially cut out).

Use tin snips to take the nailing strip off the replacement patch.

Spread clear silicone caulk on the back of the patch.

Press the patch firmly in place, tucking its top behind the row of siding running directly above the area you are repairing.

Wipe away the excess silicone, using your finger to smooth the joints where the patch meets the original siding.

Prepping the Surface

There’s still more preparation to address before painting aluminum siding. You need to scrape off peeling and flaking paint, and then chisel out any old caulk lines and apply new ones. Scrub away any mildew with a solution of three parts water to one part household bleach. Remove dirt and grime by hand-washing the siding with soap and warm water.

Alternatively, if you want to speed up the job of cleaning, rent a power washer. Just be sure to accessorize the tool with a low-pressure tip, being careful to direct the water stream directly at the siding. Never spray upward; by doing so, you may force water behind the aluminum. If you spot any aluminum oxidation or rust, remove that too before rinsing the exterior surface with a garden hose.

Do not begin painting until the siding has been allowed to dry completely; it should take about three or four days.

How to Paint Aluminum Siding

With painter’s tape and lengths of plastic sheeting, protect items and areas adjacent to the siding. (Once you have completed the paint job, remember to remove the tape as soon as possible so that it doesn’t adhere permanently.)


For best results, begin with an application of galvanized metal etching primer (view example on Amazon). Coat on the product with a synthetic polyester paintbrush, covering the full surface area before allowing the primer to cure for a minimum of four hours.


Next, apply 100 percent acrylic exterior paint. Use a brush at first to paint the edges, then proceed to “load up” the roller. After pouring a few inches of paint into a tray, dip in the roller. Run the tool back and forth over the ribbed area to ensure that paint gets evenly distributed over the roller, with little or no excess to cause drips.

Wield your paint roller from left to right if the siding is horizontal, or up and down if the siding is vertically oriented. Start painting at the top and work your way down. As you go, smooth bumps in the wet paint with a clean paintbrush.

Continue until you have applied paint to the entire area you set out to cover.


Allow at least two hours for the coat of paint to dry. It’s strongly recommended that you add a second coat to achieve a long-lasting and professional-looking finish.

Note: Because they excel in hiding surface irregularities, low-luster (also called satin) finishes usually look better on aluminum siding than do other types of paint. Get a pro to do it for you. Receive free, no-commitment estimates from pro painters near you. Find local pros to take care of all of your aluminum siding painting or paint it out yourself.