Estimated Remodeling and Repair Costs

The Old House Web
Kitchens Roofing Floors
Additions Costs
Build addition $70 to 120 per square foot
Enclose porch $5,500 to 15,000
Drywall ceiling over plaster $1.50 to 2.00 per square foot
Basement Costs
Convert basement to legal rental unit $30,000 to 50,000
Bathroom Costs
Remodel bathroom $7,000 to 12,000
Add half bathroom $3,500 to 5,000
Add full bathroom $7,000 to 12,000
Electrical Service Costs
Increase service to 200 amps $700 to 1,200
Run separate electrical lines $150 to 300
Install connectors on outlets
(of aluminum wired homes)
$15 to 20 per connection/
$2,000 to 3,000 (whole house)
Exterior Costs
Regrade lawn $500 to 1,500
New gutters and downspouts $2.50 to 3.50 per linear foot
Fireplaces Costs
Build masonry fireplace $3,300 to 4,800
Install prefabricated fireplace $1,800 to 2,300
Reline chimney with terra cotta $2,000
Floors Costs
Sand and finish wood floors $1.50 to 3.30 per square foot
Install ceramic tile floor $11 to 22 per square foot
Install vinyl tile floor $2.64 to 5.34 per square foot
Install wall-to-wall carpet $3.38 to 6.61 per square foot
Garages Costs
Build single car garage $6,000 to 9,500
Build double car garage $8,000 to 12,000
Heating and Air Conditioning Costs
Replace warm air furnace $1,500 to 3,800
Replace electric heat pump $2,200 to 3,600
Replace central air conditioning system (electric) $1,500 to 3,000
Replace central air conditioning system (gas) $2,600 to 3,500
Install humidifier $300 to 550
Install electrostatic air cleaner $500 to 750
Replace hot water boiler $2,500 to 3,500
Install attic ventilation $250 to 450
Insulation Costs
Insulate attic / basement $.75 to 1.20 per square foot
Kitchen Costs
Remodel kitchen $8,000 and up
Plumbing Costs
Hot water heater
(40-gallon capacity) $400 to 650
(40-gallon capacity) $300 to 550
Install new well $3,000 to 5,000
Install new septic system $3,000 to 5,000
Install sump pump $400 to 500
Install French drain and sump pump $2,000 to 3,500
Roofs Costs
Asphalt / fiberglass shingles-
Install over existing shingles $1 to 1.20 per square foot
Remove existing shingles and install news $1.30 to 1.75 per square foot
Windows Costs
Install storm windows $60 to 100 each
Replace existing windows $250 to 500 each
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Reproduced with permission from Freddie Mac.

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