3 Answers

Good info here with follow on links...http://www.ehow.com/list_7641903_causes-sinking-porches.html

12 years ago. Rating: 4
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Put some jacks under the supports and jack it up. Add foundation supports to level it. Hire a professional if you are a novice. 

12 years ago. Rating: 4
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It depends on what is causing the sagging.Are the posts sinking? are the joists warping? Is the ledger solid on the wall? Usually the smartest way to repair a porch is to demolish & start again.Also usually some of the materials can be recycled to save costs.If it is a "Porch" the term suggests that it is not overly large,so costs involved would not be that great.

12 years ago. Rating: 3
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