Foundation bolting
它能做什麼Anchors the wooden house frame to its concrete foundation with anchor bolts so it can't slide off in a quake.
哪些房子需要Older homes on a raised (crawl-space) foundation that were built before modern bolting was required.
改造類型
在下一次地震或風暴之前，加固你的家。
BedrockMatch 是一項免費服務，協助房主與經審核的在地地震與風暴改造承包商連結。了解改造實際能改善哪些問題、通常要花多少、像 Earthquake Brace + Bolt（地震支撐＋螺栓）這類補助可能能付哪些費用 — 然後再比較承包商。房子是你的，你決定找誰。
對房主永遠免費 固定費用配對 不抽取工程費用
BedrockMatch 是免費配對服務，不是承包商也不是工程或法律顧問。對房主而言配對免費；我們絕不抽取任何工程費用。由你比較並選擇要找誰來施工。
改造前：未上螺栓、未加支撐
房屋的結構可能會從地基滑移；薄弱的矮牆（cripple walls）會彎折變形。
改造後：上螺栓並加支撐
地腳螺栓與夾板支撐把房屋固定在地基上。
你的房子有風險嗎？
你的房子有風險嗎？
幾個簡單問題，幫你指向可能值得請承包商進一步詢問的改造項目。這是一般建議，不是檢查。
Was your home built before the 1980s on a raised foundation with a crawl space?
為什麼重要: Older raised-foundation homes are often not bolted down and have unbraced cripple walls.
Does your home have a garage or open space under living rooms (a 'soft story')?
為什麼重要: A weak open ground floor can collapse sideways in a strong quake.
Do you live in an earthquake, hurricane, or high-wind region?
為什麼重要: Where the hazard is higher, retrofitting matters more — and grants are more likely.
Do you have an unreinforced masonry chimney or an unstrapped water heater?
為什麼重要: These are cheap to brace and prevent fire, gas leaks, and falling-debris injuries.
Has your home never had a structural retrofit or seismic upgrade?
為什麼重要: If no one has bolted, braced, or tied it down, the original weak points are still there.
如果你任一項回答「是」，就值得先做一次免費評估。與在地經審核的承包商配對 — 你比較後再決定。 立即免費配對 →
改造能解決什麼問題
改造實際會修到什麼問題
房屋常見的薄弱點，以及能加固每一項的施工方式。哪些項目適用取決於你的房子；持牌承包商會在看過現場後確認。
Cripple-wall bracing
它能做什麼Adds plywood bracing to the short stud walls between the foundation and the first floor so they don't buckle.
哪些房子需要Houses with a crawl space and unbraced 'cripple' walls — a very common weak point in older homes.
Soft-story strengthening
它能做什麼Reinforces a weak ground level — usually an open garage or carport under living space — with a steel frame.
哪些房子需要Homes and small apartment buildings with a tuck-under garage or large open first floor.
Hurricane straps & roof tie-downs
它能做什麼Metal connectors tie the roof to the walls and the walls to the foundation so high winds can't peel them off.
哪些房子需要Homes in hurricane, high-wind, and severe-storm zones, especially older wood-frame houses.
Chimney & water-heater bracing
它能做什麼Braces an unreinforced masonry chimney and straps the water heater so they don't topple or rupture a gas line.
哪些房子需要Almost any older home — these are low-cost fixes that prevent fire, gas leaks, and falling-debris injuries.
Garage & wall reinforcement
它能做什麼Adds shear panels and hold-downs at weak wall lines so the structure resists side-to-side shaking and wind.
哪些房子需要Homes with large openings, wide windows, or additions that left a wall line under-supported.
改造類型
地震與風暴改造類型
我們幫你配對的持牌承包商提供各式加固施工；這些就是他們承接的工作類型。
真實的費用區間
誠實改造（retrofit）費用範圍
僅供參考的常見範圍 — 不是報價。你實際會付多少取決於你的房子、所在區域，以及承包商確認的工程範圍。像加州的 Brace + Bolt（地震固定＋螺栓）這類補助可能有助於支付工程費用。
| 工程 | 常見範圍 |
|---|---|
| Foundation bolting (anchor bolts only) | $1,500 - $4,000 |
| Cripple-wall bracing + bolting (typical house) | $3,000 - $7,000 |
| Full seismic retrofit (older raised-foundation home) | $5,000 - $10,000 |
| Soft-story strengthening (steel frame) | $10,000 - $80,000+ |
| Hurricane straps & roof tie-downs | $1,000 - $5,000 |
| Chimney bracing / water-heater strapping | $200 - $3,000 |
| CA Earthquake Brace + Bolt grant (toward the work) | up to $3,000 if you qualify |
許多州和 FEMA（美國聯邦緊急管理署）相關計畫都有提供改造補助，或保險折扣。詢問你的房子是否符合資格。
如何運作
BedrockMatch 的運作方式
四個清楚步驟 — 全程由你掌握主導權。
Tell us about your home
Where it is, the age and type of home, and how to reach you. Home basics and contact details only — never financial accounts or immigration status.
Get matched, free
We introduce you to vetted local seismic and storm retrofit contractors near your home, at no cost to you.
Get an assessment & quote
A contractor looks at your home's weak points and gives you a written scope and price. Ask whether engineer's plans or a permit are needed.
You choose & confirm
You decide who to hire and confirm the scope, the engineering, and the price in writing before any work starts.
立即免費配對
準備好把你的家做得更穩固了嗎？
把你免費配對到你附近經審核的地震與風暴改造承包商。你可以比較工程範圍和價格，然後決定要找哪一位。
施工前務必自行確認承包商的執照、保證（bond）與保險，並用文字確認工程範圍與價格。
立即免費配對
想在下一次來臨前就讓家更到位嗎？
免費為你配對到經審核的在地改造承包商。比較工程範圍與價格，並在任何施工開始前，用文字確認工程與成本；工程設計與費用都要確認清楚。你比較、也由你決定要找誰。