Aluminum siding lasts a long time. Plenty of Denver homes still have the panels that went on in the 1960s, and the material itself will not rot or rust.
What ages is the finish and the fixings. Hail dents it, high-altitude sun chalks the coating, and fifty years of temperature cycling works the fasteners loose. The question is whether yours has reached the point where repair stops being worthwhile.
What You Cannot See From the Driveway
Dents and fading are the visible symptoms. The things that actually decide whether replacement is worthwhile sit behind the panels: loose fixings, failed seams, water that has found its way in at a window, and on most homes of this age, a water-resistive barrier that is either degraded or was never there.
House wrap was not standard until the 1980s. If your aluminum went on before that, there may be nothing but building paper between the panels and your sheathing, which is the single biggest thing a re-side puts right.
Signs It Is Time to Evaluate Complete Replacement
Not every sign means replacement. One dented panel on a side elevation is cosmetic. What matters is how many of these you can tick, and whether any of them involve water.
- Dents across whole elevations, not just the odd one. Isolated dents are cosmetic; a hail-hammered south wall is a different conversation.
- Chalking that comes off on your hand. That is the finish oxidizing, and once it starts, it does not stop. Repainting is possible; it is not permanent.
- Panels that rattle or have come loose on more than one elevation, which usually means the fixings have worked their way out.
- Water stains inside, soft spots in the sheathing, or anything that suggests moisture is getting past. This is the one not to leave.
- Gaps at corners, windows, and roof-to-wall junctions, which is where water gets in first.
- You are already doing other exterior work, since removing and refitting siding around new windows costs more than doing both at once.
If only the first two apply, you may have years left and a repaint is worth pricing. If the fourth one applies, that is the one to act on, because water behind siding gets worse and more expensive every season it sits.
What a Proper Assessment Looks At
Every elevation, not just the one from the street, since the north side ages differently from the south. The condition of the panels and fixings, the flashing at windows and doors, and anywhere the cladding meets another material.
We also check what is behind the panels where we can, because the substrate condition is what determines whether this is a straightforward re-side or a bigger job. If your property is in a mapped wildfire area, that narrows the material options before anything else is discussed. You should come out of that conversation knowing whether you are looking at repair, partial replacement, or the whole house, and roughly what each costs.
Modern Siding Options for Colorado Homes
Most homeowners replacing aluminum move to fiber cement. It is classified as non-combustible under ASTM E136, stays dimensionally stable through freeze-thaw, and carries a 30-year non-prorated substrate warranty.
Engineered wood costs less and installs faster, though it is combustible. Steel keeps the metal character with a tougher gauge than aluminum. And if you want to stay with aluminum, that remains an option; modern coatings hold up considerably better than the enamel on a 1960s panel.
Not Sure Whether Yours Has Reached That Point?
We will tell you honestly. Sometimes, aluminum that looks tired is sound behind the panels, and a repaint buys another decade. Sometimes it is worse than it looks. Either way, you should know before you spend anything. Contact GS Exterior Experts or call us at (720) 683-6288, and we will come by to take a look.
