Earthquake Retrofitting
Earthquake Retrofitting in Medford, OR
Get a free estimate. Find out if your home needs a seismic retrofit.
Earthquake Retrofitting
Get a free estimate. Find out if your home needs a seismic retrofit.
Oregon's Office of Emergency Management puts the chance of a major Cascadia Subduction Zone earthquake in the next 50 years at about 37%. In a strong quake, the most common damage to older wood-frame homes is the house sliding off its foundation, or short crawl space walls (cripple walls) collapsing.
According to the Oregon Construction Contractors Board, homes built before 1974, when Oregon adopted a statewide building code, face the greatest risk, and homes built after 1993 are the most resilient. A standard retrofit bolts the house to its foundation and braces the cripple walls with plywood. It's one of the most cost-effective ways to protect an older Medford home.
A typical residential retrofit covers these areas:
Anchor bolts or plates connect the wood sill plate to the concrete foundation so the house can't slide off in a quake.
Plywood sheathing is nailed to the short walls in the crawl space so they don't fold over when the ground shakes.
Rooms built over garages with large openings may need extra bracing.
Strapping the water heater and securing masonry chimneys reduces fire, flood and injury risk after a quake.
| Service | Estimated Cost | Average |
|---|---|---|
| Cripple wall bracing | $1,000 – $3,000 | ~$2,000 |
| Foundation bolting | $1,000 – $5,000 | ~$3,000 |
| Typical full retrofit | $3,000 – $10,000 | ~$6,500 |
| 2,000 sq ft single-level home (Oregon CCB estimate) | $4,000 – $10,000 | $2 – $5 per sq ft |
Ranges are from HomeGuide (2026) and the Oregon Construction Contractors Board; the Average column is the midpoint of each range. Homes on hillsides, with tall cripple walls or needing an engineer's design cost more.
Any licensed residential contractor can legally do a retrofit, but we refer contractors with real seismic experience.
The typical costs on this page help you judge any quote.
Every contractor we refer holds an active Oregon CCB license you can check yourself.
Older home? Call 532 -455-543 to find out whether it's bolted to its foundation.
Free — no obligations
Call 532 -455-543 or email the year the house was built and whether it has a crawl space.
We pass your request to a licensed contractor who does seismic retrofits.
The contractor checks anchor bolts, sill plates and cripple walls and tells you whether an engineer is needed.
You get the scope and price in writing, with no obligation.