John DeSilvia identifies the marks of an unqualified home contractor while touring a couple's home.

Repairs to an improperly constructed kitchen and roof are made.

John and the team install a waterproof roof and renovate flooded rooms for a couple whose previous contractor did a shoddy job.

A bathroom is renovated to accommodate a homeowner who uses a wheelchair as a result of a heart condition.

John remodels a kitchen that flooded due to an unscrupulous contractor who abandoned the job before completing the necessary plumbing work.

A house gets new exterior siding and insulation.

John and the team repair plumbing, water damage, loose tiles and the door of a bathroom job gone awry.

A balcony is redone after a disastrous contracting job.

John renovates a home devastated by flood damage from Hurricane Irene.

John and the team install a new heating-and-cooling system in a three-story brownstone.

The crew finish a couple's master bath and bedroom after a contractor used their payment for other jobs.

A basement is renovated to accomodate a large family.