What fails in 80-year-old pier-and-beam
- Pier deterioration, original brick or stone piers crumble at the base from cyclic moisture. Concrete-block piers from 1940s+ tend to crack at the mortar joints.
- Sill plate rot, the bottom plate where the home sits on the piers, often the first thing to fail in wet crawls
- Beam sag, main girder deflects under load over decades
- Mudsill termite damage, the wood-to-concrete transition is the most common termite entry point
What the repair scope typically involves
- Temporary shoring while work proceeds (no, the house won't fall)
- Failing piers removed; new concrete piers poured per local frost depth
- Rotted sill plates cut out and replaced with pressure-treated lumber
- Sistered beams (new 2x10 or 2x12 alongside the original) where beam sag is excessive
- Original redwood preserved everywhere it's structurally sound, these homes have soul, and the network respects that
- Anchor-bolting where seismic upgrade is warranted (separate scope, can be combined)
What network specialists won't do: rip out original redwood "because it's old." If the wood is still sound, and 80-year-old old-growth redwood often is, it stays. The repair preserves the home's character. Specialists who treat every old beam as disposable are not in our network.
Common questions
Can I get earthquake retrofit done at the same time?
Yes, and you should. Sill-plate replacement is the right time to add anchor bolts; pier replacement is the right time to add cripple-wall sheathing. Bundled cost is 30 to 40% lower than doing them separately. Network specialists can often combine the work.
How long can I wait if the floor isn't sagging yet?
Pier-and-beam failure is usually a 5 to 15 year process. If a network inspection flags early deterioration, action within 2 to 3 years is reasonable. Don't wait until you can see the floor sag from across the room.