# Paint or replace aluminum siding?

> Paint aluminum siding when the panels are straight, tight to the wall and only chalky or faded: a proper repaint costs roughly a third to half as much as new vinyl and looks good for 8 to 10 years. Replace it when it is badly dented, loose, oil-canned or wet behind, or when you would rather never paint again, because new vinyl or fiber cement ends the paint cycle for good.

Source: https://www.hoosiercladding.com/siding-decisions/paint-or-replace-aluminum-siding

## Prices (installed, Northern Indiana)

| What | Range |
|---|---|
| Standard vinyl siding, installed | $5.50–$8.50 per square foot of wall |
| Insulated vinyl siding, installed | $7.50–$10.50 per square foot of wall |
| Old siding tear-off and disposal | $1,000–$3,000 per project |

Prices updated 2026-10-15.

## Paint if…
- Panels are straight and tight; the problem is chalking or fading
- Only a few dents, which can be filled or the panels swapped
- You plan to sell in the next few years and want a fresh look
- The house is in a historic district where the profile should stay

## Replace if…

Vinyl $5.50–$8.50 per sq ft installed
- Hail dents cover the storm side or several walls
- Panels are loose, rattling or pulled from the wall
- You find wet or rotted sheathing behind the panels
- You do not want to repaint again in 8 to 10 years
- You want insulation added to an old, drafty house

**Painting vs replacing aluminum siding**

|  | Repaint | New vinyl | New fiber cement |
| --- | --- | --- | --- |
| Rough cost, 2,000 sq ft of wall | About a third to half of vinyl | $8,000–$16,000 | $14,000–$28,000 |
| Looks good for | 8–10 years | 20–40 years | 30–50 years; repaint at 15+ |
| Fixes dents | No (small ones filled) | Yes | Yes |
| Adds insulation | No | Yes, with insulated vinyl or foam board | Yes, with foam board |
| Lets us check the wall behind | No | Yes, with tear-off | Yes |

## How aluminum siding should be painted

Most failed aluminum paint jobs failed at the prep. The order that works:

- **Wash off all the chalk.** Low-pressure wash with a siding cleaner and a brush until a wiped hand comes away clean. Paint over chalk peels.

- **Treat bare and oxidized spots.** Sand white oxidation near downspouts and the ground and spot-prime bare metal with a primer made for aluminum or galvanized metal.

- **Use 100 percent acrylic exterior paint.** Two coats, applied when the panels are not hot to the touch. Satin or low-lustre hides waves better than gloss.

- **Stay a shade lighter.** Dark colors heat the metal more and show oil-canning, the waviness of long flat panels.

Hoosier Cladding is a siding and trim contractor. We repaint the sections we repair so they blend; a whole-house repaint is a painting contractor’s job, and we will tell you honestly if your siding is a good candidate for one.

## Covering aluminum with vinyl

Vinyl can be installed over one flat, tight layer of aluminum, often with foam board between them, which saves the tear-off cost of $1,000–$3,000. We still open the worst spots first; if the sheathing is wet we tear off. Read [whether new siding can go over old](https://www.hoosiercladding.com/siding-decisions/new-siding-over-old-siding) for the full trade-off.

## FAQ

### Will aluminum siding rust?

No. Aluminum contains no iron, so it cannot rust. It oxidizes instead, which shows as a white, powdery coating on bare spots. Oxidation is cosmetic and is sanded and primed before painting. The steel nails and some older trim pieces can rust and leave streaks.

### What kind of paint works on aluminum siding?

A 100 percent acrylic exterior latex paint over clean, chalk-free panels, with bare or oxidized spots first primed with a primer made for aluminum or galvanized metal. Oil-based paint becomes brittle on metal that expands and contracts every day, and it chalks faster.

### Is painting aluminum siding a bad idea?

Not if the siding is sound and the prep is done right; it is a common, cost-effective way to refresh it. It is a bad idea over loose, heavily dented or wet-backed panels, because paint only changes the color, and over chalk, because the paint will peel within a year or two.

Book a free repair assessment: https://www.hoosiercladding.com/book/siding-repair-assessment · Call (574) 931-2119