Electric service upgrade to 200 amps	$900 – $1,300
Install separate circuit for clothes dryer or air conditioner.	$150 – $250
Add GFCI protection to receptacle	$40 – $100 each
Upgrade interior wiring (old knob and tube)+ repairs for any unusual conditions	$1.25 – $3.00 per square foot
Correct double tap in panel box	$75 – $250
Correct exposed wiring in closet/garage	$100 – $300
Correct ungrounded receptacle	$50 – $100 each
Service heating or cooling system	$75 – $200
Install new gas furnace	$1,500 – $3,000
Install new hot water boiler	$2,500 – $4,000
Install new hot water boiler	$2,500 – $4,000
Install new air conditioning or heat pump compressor	$1,300 – $1,800
Install new heat pump or air conditioning complete	$3,000 – $5,000
Replace old window with new vinyl replacement	$300 – $600 each
Install storm windows	$80 – $150 each
Install sliding glass door	$1,000 – $1,900 each
Replace main entry door	$800 – $1,500 each
Sealcoat driveway	$0.15 – $0.30 per square ft.
Replace humidifier	$300 – $800
Install electronic air cleaner	$500 – $1,000
Clean indoor coil in AC or heat pump	$100 – $350
Install new electric water heater (50 gallon)	$400 – $700
Install new gas water heater	$350 – $600
Replace laundry sink	$200 – $400
Replace shower pan (includespatch and replace tile)	$900 – $1,500
Replace galvanized water pipes with copper tubing or plastic (average)	$2,000 – $4,000
Install new main water valve	$150 – $200
Install water pressure regulator	$200 – $300
Remove and re-set toilet, install new wax seal	$150 – $300
Snake plumbing drain	$150 – $300