While it is difficult to provide a price without drawings and discussions with the homeowner you can expect this type of specialty work to run between 20000 50000. The amount of time it takes and the cost of the project can very base on the size of your basement. There are many factors that can affect the cost of basement lowering including the size of the space how much you want it to be lowered access to the site landscaping where you live and even the weather.
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On this same thread another member chimed in and stated she paid close to 40000 for a 982 square foot home in order to add eight feet ceilings.
Lowering basement floor cost. Basement lowering is certainly not your everyday project and there may be special considerations that affect the cost. As a ballpark figure you can look at between 35 and 70 per square foot according to a hrefhttpswwwrenoassistancecaenbasementwhat is the cost of a basement renovation relnofollow targetblankrenoassistancea. This quote included the dig concrete floor plus some reinforced footings. Typical cost for preparing the complete design package required by the municipality for a basement lowering project is between 2800 for underpinning design only to around 3800 if you want us to design the new interior basement space show floor drains new laundry room layout specify insulation show location of new stud wall partitions etc.
Some projects take a few days mostly repairs and some can extend into many weeks average full job is 3 6 weeks.