Typical home repair costs Exterior Wooden deck $30 to $50 per sq. ft. Exterior wooden staircases $1500 to $2500 per story Wooden fencing $25 to $35 per linear ft. Resurface asphalt driveway $2 to $4 per sq. ft. Concrete flat work $3 to $5 per sq. ft. Build detached garage $40 to $60 per sq. ft. Build addition $60 to $100 per sq. ft. Build concrete retaining wall $40 to $60 per sq. ft. Replace windows $400 to $600 each Paint building exterior $3000 to $6000 To top of page Foundation Install anchor bolts $1500 to $3000 Install subarea shear paneling $2000 to $4000 Extensive seismic retrofit $6000 to $10,000 Install cap on foundation wall $100 to $1 50 per ft. Replace low foundation wall $150 to $250+ per ft. Install footing under precast pier $300 to $600 each Underpin foundation $1500 to $3000 per piling, typically placed 6'-8'apart To top of page Attic Insulation Fiberglass batt 6 inch thick R-1 9 $1.00 to $1.50 sq. ft. Fiberglass batt 9 inch thick R-30 $1.50 to $2.00 sq. ft. To top of page Roofing To install one square* or 100 square feet (10 x 10) composition shingles $150 to $200 wood shingles $300 to $400 wood shakes $300 to $400 gravel surfaced built-up roofing $250 to $350 cap sheet built-up roofing $300 to $400 modified bitui-nen roofing $300 to$400 tile $600 to $1,200 strip roofing materials and install new sheathing $50 to $100 per sq. Install new rain gutters and downspouts $5 to $8 per ft. Install skylight $1500 to $2000 *For example, a single story 1,500 sq.ft. home with a sloped roof and over hanging eaves will usually require about 1,800 to 2,000 square feet or 18 to 20 "squares" of roofing material. Continued...