Estimated costs for home repair and remodel

Building
Build addition $70 - 120 /sq ft
Enclose porch $5,500 - 15,000
Drywall ceiling over plaster $1.50 - 2.00/sq ft
Build double car garage $8,000 - 12,000

Kitchen
Remodel kitchen $8,000 and up

Bathroom
Remodel bathroom $7,000 - 12,000
Add half bathroom $3,500 - 5,000
Add full bathroom $7,000 - 12,000

Basement
Convert basement - legal rental unit $30,000 - 50,000

Windows
Install small room windows $60 - 100 each
Replace existing windows $250 - 500 each

Fireplaces
Build masonry fireplace $3,300 - 4,800 Install prefabricated fireplace $1,800 - 2,300
Reline chimney with terra cotta $2,000

Electrical Service
Increase service - 200 amps $700 - 1,200
Run separate electrical lines $150 - 300
Install connectors on outlets (of aluminum wired homes) $15 - 20 per connection/$2,000 - 3,000 (whole house)

Roofs
Asphalt / fiberglass shingles-
Install over existing shingles $1-1.20/sqft
Remove existing shingles and install new $1.30 - 1.75 /sq ft

Flooring
Sand and finish wood floors $1.50 - 3.30/sq ft
Install ceramic tile floor $11 - 22/sq ft
Install vinyl tile floor $2.64 - 5.34/sq ft
Install wall---wall carpet $3.38 - 6.61/sq ft

Heating and Air Conditioning
Replace warm air furnace $1,500 - 3,800
Replace electric heat pump $2,200 - 3,600
Replace central air conditioning system (electric) $1,500 - 3,000
Replace central air conditioning system (gas) $2,600 - 3,500
Install humidifier $300 - 550 Install electrostatic air cleaner $500 - 750
Replace boiler $2,500 - 3,500
Install attic ventilation $250 - 450

Insulation
Insulate attic / basement $.75 - 1.20 /sq ft
Exterior Costs
Regrade lawn $500 - 1,500
New gutters and downspouts $2.50 - 3.50/lin ft

Plumbing
Water heater
Gas (40-gallon capacity) $300 - 550
Electric (40-gallon capacity) $400 - 650
New well $3,000 - 5,000
New septic system $3,000 - 5,000
Install sump pump $400 - 500
Install French drain and sump pump $2,000 - 3,500