9 Signs Your Siding Needs Replacing (Not Just Repainting)

Siding lasts a long time when installed and maintained correctly — 30 to 50 years depending on material. But almost every house we look at has at least one early-warning sign of failure that homeowners have learned to ignore. Catch these now and you save yourself five figures and a winter's worth of mold.

01The nine signs

1. 11. Soft spots when you press the siding — wood-based siding rotting from behind
2. 22. Visible warping or cupping along plank edges — moisture has gotten under the paint film
3. 33. Paint peeling in sheets (not just patches) — the substrate is shot, paint is the last thing holding it together
4. 44. Caulk gaps at the seams that you can stick a screwdriver into — water path straight to the sheathing
5. 55. Mildew or mold on the siding (especially north-facing walls) — usually means the back side is wet too
6. 66. Fungal growth on lower courses near the foundation — ground splash and capillary moisture
7. 77. Hairline cracks running with the grain — fiber cement that has been improperly nailed
8. 88. Daylight visible from the inside of an exterior wall at the siding seam — yes, this is a real thing we find
9. 99. Insulation visible at any siding gap — vinyl siding that has shifted

02When paint actually fixes it

If the only issues are color fade, light surface peeling, and minor caulk failure — paint will solve it. A quality exterior paint job runs $4,500 to $9,500 in our service area and buys you 8 to 12 years before the next refresh.

03When paint just delays the inevitable

If you have any of signs 1, 2, 5, or 8 above, paint is throwing money at a structural problem. The water is already behind the siding; painting the front side seals it in. The mold and rot keep going and now you have spent $7,000 on paint and still need a full reside in three years.