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| Quick Reference Cost Estimator The following costs are intended as general cost estimates for repairs and/or improvements to a typical three bedroom home. The costs are only intended as a ballpark guide and actual contractor quotations may vary by as much as 300%. The scope and size of a project will dramatically affect actual costs. Costs as listed below can be useful for basic planning and exploratory purposes. --------------------------------------------------------------------------------------------------------------- ROOFING/FLASHINGS/CHIMNEYS Install conventional asphalt shingles over existing shingles $1.25 - $2 per sq. ft. Strip and re shingle with conventional shingles $2 - $3 per sq. ft. Strip and re-roof with cedar shingles $5 - $7 per sq. ft. Strip and replace built-up tar and gravel roof $4 - $6 per sq. ft. Strip and replace single-ply membrane $4 - 6 per sq. ft. Re flash typical chimney $300 - $500 Re flash typical skylight $300 - $500 Rebuild typical chimney above roof line $100-$200 per lin. ft. (min. $300) Repoint typical chimney above roof line $20-$30 per row (min. $250) Exterior Install galvanized or aluminum gutters and downspouts $3 - $5 per lin. ft. (min. $300) SOFFITS - FASCIAS - REPAINTING - WATER PROOFING Install aluminum SOFFITS and fascia $8 - $12 per lin. ft. Install aluminum or vinyl siding $3 - $4.50 per sq. ft. Repoint exterior wall (soft mortar) $3 - 4.50 per sq. ft. (min. $200) Repoint exterior wall (hard mortar) $6 - $8 per sq. ft. (min. $200) Parge foundation walls $3 - $4 per sq. ft. Damp proof foundation walls and install weeping tile 60-$120 per lin. ft. (min. $1000) GARAGES - DECKS - RETAINING WALLS - FOUNDATION REPAIR Install a deck $12- $20 per sq. ft. (min. $1000) Rebuild exterior basement stairwell $3500 - $5000 Build detached garage (single) $8000 and up Build detached garage (double) $12000 and up Build retaining wall (wood) $20 - $25 per sq. ft. (min. $500) Build retaining wall (concrete) $30 - $40 per sq. ft. (min $500) Structure Underpin one corner of house $3500 and up Underpin or add foundations $300 and up per lin. ft. (min. $3000) Lower basement floor by underpinning and/or bench footings $150 - $300 per lin. ft. (min. $300) Replace deteriorating sill beam with concrete $60 and up per lin. ft. (min. $500) Install basement support post with proper foundation $200 - $400 Perform chemical treatment for termites $500 and up Repair minor crack in poured concrete foundation $400 - $800 ELECTRIC REPAIRS - UPGRADES Electrical Upgrade electrical service to 100 amps $800 - $1200 Upgrade electrical service to 100 amps (if suitably sized panel already exists) $500 - $700 Upgrade electrical service to 200 amps $1300 - $2000 Install new circuit breaker panel $500 - $700 Replace circuit breaker (20 amp or less $50 - $100 Add 120 volt circuit $150 - $250 Add 240 volt circuit $250 - $350Add conventional receptacle 75 - $150 Replace conventional receptacle with ground fault circuit receptacle $60 - $90 Rewire electrical outlet with reversed polarity (assuming electrician already there) $5 - $10 ea. Install conventional alarm system fire- burg $1000 and up HEATING SYSTEMS - AIR CONDITIONING - RELATED COMPONENTS Heating install mid-efficiency forced-air furnace $ 2000 - $2500 Install high-efficiency forced-air furnace $2500 - $4500 Install drum-type humidifier $200 - $300 Install electronic air filter $500 - $800 Install mid-efficiency boiler $2500 - $4000 Install high-efficiency boiler $5000 - $9000 Rebuild firepot (refractory) on boiler $500 - $800 Install circulating pump $400 - $600 Install chimney liner $300 - $700 Install set-back thermostat $100 - $300 Remove oil tank from basement $300 - $500 Remove abandoned underground oil tank $1500 and up Replace radiator valve $75 - $150 Add electric baseboard heater $150 - $250 Convert from hot water heating to forced-air (cape) $8000 - $10000 Convert from hot water heating to forced-air (two story) $15000 - $20000 Clean ductwork $250 and up Cooling/Heat Pumps Add central air conditioning on existing forced-air system $2000-$3000 Add heat pump to forced-air system $3000-$4000 Replace heat pump or air conditioning compressor $800 - $1400 Install independent air conditioning system $8000 - $15000 Insulation Insulate open attic to modern standards $1 - $1.50 per sq. ft. Blow insulation into flat roof, cathedral ceiling or wall cavity $2 - $3.50 per sq. ft. Improve attic ventilation $40 - $50 per vent PLUMBING Plumbing Replace galvanized piping with copper-2 story with one bathroom) $2000 - $2500 Replace water line to house $1500 - $3500 Replace toilet $300 and up Replace basin $200 and up Replace bathtub, including ceramic tile $1500 and up Install whirlpool bath $3000 and up Retile bathtub enclosure $800 - $1200 Replace leaking shower stall pan $1000 - $1600 Rebuild tile shower stall $1500 - $2500 Replace laundry tubs $250 - $500 Remodel four-piece bathroom completely $6000 and up Connect waste plumbing system to municipal sewers $3000 and up Install submersible pump $800 and up Install suction or jet pump $400 - $600 Install modest basement bathroom $4000 and up CARPENTRY - FINISH WORK Sand and refinish hardwood floors $1.50 - $3 per sq. ft. Interior add drywall over plaster $1.50 - $2.50 per sq. ft Install replacement windows $175 - $300 ea. Install storm windows $75 - $200 ea. Install skylight $500 and up Remodel kitchen completely $8000 and up Painting (trim only) $1500 - $2500 Painting (trim and wall surfaces) $3000 and up FIREPLACES - STOVES Repoint chimney (2 story) $700 and up Convert coal-burning fireplace to wood-burning unit $800 and up Install masonry fireplace (if flue already roughed - in ) $2000 and up Install zero-clearance fireplace (including chimney) $2500 and up Install glass doors on fireplace $300 and up |
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