Check out simple causes of leakage such as clogged gutters or obvious cracks around basement windows or doors. These can be easily addressed without the expense of hiring a waterproofing contractor.
Step2
Ask friends and family for recommendations of contractors they have used.
Step3
Check with the National Association of Waterproofing Contractors at (800) 245-NAWC about any contractor you are considering hiring.
Step4
Interview several contractors and have each inspect your house and prepare a proposal for the waterproofing work.
Step5
Compare warranties offered by the various contractors.
Step6
Negotiate a written contract with your chosen contractor.
Step7
Pay any deposit called for by the contract and have the contractor begin work.
Tips & Warnings
Try to negotiate a contract with a minimal upfront deposit and a schedule of payment that closely tracks the work in place. Always insist that the contract call for you to withhold a final payment until the job is satisfactorily completed.
There are many potential ways water can seep into a basement; achieving a truly waterproof basement is sometimes a long and difficult process. Be sure you understand what your contractor is doing and what is being guaranteed before proceeding.