Short answer: Repair when damage is limited to a few panels or boards and the rest of the siding is sound. Replace when damage is widespread, rot keeps spreading, the siding is near the end of its life or you cannot get a reasonable match.
Deciding between repair and replacement comes down to how much is damaged, what is behind it and how old the siding is. These questions help you decide.
Repair usually makes sense when
- Only a few panels or boards are damaged
- The damage came from a single event, such as a branch or hail
- The sheathing behind is dry and sound
- You can get a good color and style match
- The siding has plenty of life left
Replacement usually makes sense when
- Damage is spread across several walls
- Rot or water damage keeps coming back
- The siding is warped, faded and brittle all over
- Repairs no longer match or keep failing
- You want better insulation or a new look
Questions to ask yourself
- How old is the siding, and how long does that type usually last?
- Is water getting behind the siding?
- How much of the house is affected?
- Will a patch look out of place?
- Are you planning to sell soon?
Older homes need extra care
Homes built before 1978 may have lead paint on or under the siding, and some older siding shingles contain asbestos. Have these tested before work that disturbs them, and hire firms qualified to handle them.
Get a professional opinion
A siding provider can check behind the siding for hidden damage and give you both repair and replacement options, so you can compare.
Frequently asked questions about repair or replace siding
Is it cheaper to repair or replace siding?
Repair is usually cheaper for limited damage. For widespread problems, repeated repairs can cost more over time than replacement.
Can I replace siding on just one wall?
Yes, though matching the other walls can be harder.
How long does siding last?
It depends on the material and the climate. Vinyl and fiber cement often last for decades, while wood needs regular upkeep.
Does insurance help with siding?
Damage from hail, wind or falling trees is often covered. Age and wear are not.
Related
Read our siding repair and siding replacement pages.
This guide covered repair or replace siding. For more background, see the FTC’s advice on hiring a contractor and avoiding home improvement scams, and if you need help, Sifixit can connect you with a local provider.
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