All cost guides

Every cost guide on the site, newest first, with the national price range for each job. Page 5 of 20.

• Ungrounded outlet fix cost$150 to $600per eachFixing an ungrounded outlet costs $150 to $600 per location. A three-prong outlet with no ground behind it is far more dangerous than a two-prong one, because it looks safe.
• Aluminum wiring repair cost$2,000 to $8,000per projectRemediating aluminium branch wiring costs $2,000 to $8,000, typically $4,000. It was installed in roughly two million American homes between 1965 and 1973, and it is not a defect you can ignore.
• Knob and tube wiring replacement cost$8,000 to $30,000per projectReplacing knob and tube costs $8,000 to $30,000, typically $15,000. Where it survives it is at least eighty years old, has no ground, and is the most common reason an insurer declines to cover a house.
• Subpanel installation cost$600 to $2,500per projectInstalling a subpanel costs $600 to $2,500, typically $1,200. It adds breaker spaces where they are needed, and it does not add capacity, which is the distinction that decides whether it helps.
• Electrical inspection cost$200 to $600per eachAn electrical inspection costs $200 to $600, typically $350. It is the cheapest way to find out whether the wiring in a house is a maintenance item or a five-figure project.
• Whole house surge protector cost$300 to $700per eachA whole-house surge protector costs $300 to $700 installed. It does not replace the power strips at your desk; the two work together, and knowing why is most of what there is to know.
• Outdoor lighting installation cost$100 to $600per eachOutdoor lighting costs $200 to $600 per fixture for line voltage and $100 to $300 for low-voltage landscape lighting. A whole-house scheme is $2,000 to $6,000.
• Under cabinet lighting cost$80 to $600per eachUnder-cabinet lighting costs $200 to $900 installed. It is the highest-value lighting change in a kitchen, because it puts light on the worktop rather than behind the person standing at it.
• Smoke detector installation cost$80 to $350per eachSmoke detectors cost $80 to $200 per unit hardwired, or $15 to $60 for a battery unit you fit yourself. They also expire after ten years, whether or not they have ever detected anything.
• Hot tub electrical hookup cost$700 to $2,500per projectWiring a hot tub costs $700 to $2,500, typically $1,300. The requirements are strict and inspected, because it is a large amount of water sitting on top of a 240 volt appliance.