Foundation Demolition Cost

Typical costs:

• Costs for demolition a small concrete slab foundation start around $600-$1,600 in low-cost areas, but can be $2,000-$4,000 or more, depending on size and thickness of the slab, local rates, disposal costs, ease of equipment access and other factors.
• Removing a basement foundation runs roughly $1-$3 a square foot, or $1,500-$5,000 or more for an average home depending on size; local rates; ease of access;; and whether the concrete walls will be crumbled in place and used as fill in the bottom of the hole. These prices assume there is no asbestos or lead paint present. Asbestos removal could add another $1,500-$3,000 or more, depending on the extent of the problem, and lead paint abatement could be $1,000-$2,000 or more for 100 square feet.

• Typically a representative of each company will visit the site before submitting a bid; this is the time to mention any possible problems with asbestos, lead pain, underground utilities or a nearby septic system, or other concerns. Be specific about any plans for the site (they need to know if you're going to rebuild).
• You may need a demolition permit -- some companies will handle this for you as part of the total price. A simple concrete slab foundation can often be "popped" up with heavy excavation equipment, then easily crushed into small pieces to be used onsite as fill material or hauled away for disposal. Often, basement walls are pushed down into the basement, then broken into pieces to be used as in place as bottom fill (a common practice) or hauled away for disposal (a more expensive option).
• The contractor will then fill the hole with gravel, dirt and/or top soil, and might grade the site or plant grass seed -- whatever's specified in your written contract. An average foundation removal will usually take one day, sometimes two. A Michigan company displays photos^[1] of a down-to-the-dirt demolition of a fire-damaged home, including complete foundation removal.

• If required, a demolition permit often costs only $15-$50, but can be much more in some areas.

• Get several estimates. Ask about specific experience with this type of excavation and foundation removal. Be sure you understand exactly how debris removal will be handled, and who is responsible for any required permits or dump fees. Make sure the company is properly insured, bonded and licensed^[2] in your state (although demolition licensing requirements vary by state^[3] ), and check for complaints with the Better Business Bureau^[4] .
• Foundation removal is generally done by excavation or demolition contractors, because they have the required equipment. Referrals are available through the National Demolition Association^[5] ; or ask local building contractors to recommend excavation contractors in your area. There should be a written contract with a detailed description of the work to be done, start and finish dates, and a payment schedule.

1.  www.tesuper.com/demoh.htm
2.  www.contractors-license.org/
3.  207.150.194.71/lic_map.aspx
4.  www.bbb.org/en/us/search
5.  207.150.194.71/nda_criteria.aspx?mem=1

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