All cost guides

Every cost guide on the site, newest first, with the national price range for each job. Page 13 of 20.

• Whole house humidifier cost$400 to $1,300per eachA whole-house humidifier costs $400 to $1,300 installed. Buy a $12 hygrometer first: below 30% in midwinter is worth acting on, and above 50% is a condensation problem rather than a dryness one.
• Boiler replacement cost$3,500 to $14,000per projectReplacing a gas boiler costs $3,500 to $14,000, typically around $7,500. A standard efficiency unit on an existing system sits at the bottom; a condensing boiler needing new venting and a chimney liner sits at the top.
• Geothermal heat pump cost$18,000 to $45,000per projectA geothermal system costs $18,000 to $45,000 installed, or about $19,600 typical after the 30% federal credit. Between a third and a half of the bill is drilling or excavation rather than heating equipment.
• Repair or replace your HVAC system$6,500 to $22,000per projectThe $5,000 rule says multiply the repair by the age of the system and replace above $5,000. It is memorable and it is wrong often enough to cost money. Here is the arithmetic that works, and the cases where it is not close.
• How long does an HVAC system last$6,500 to $22,000per projectA gas furnace lasts 15 to 25 years and an air conditioner 15 to 20. Those ranges are wide on purpose: two identical systems on the same street routinely differ by a decade, and almost none of it is brand.
• How to pay for an HVAC system$6,500 to $22,000per projectAn $11,000 replacement usually arrives on the day the system stops, and that timing is what makes the financing expensive. Incentives first, then a home equity line, then a credit union. The spread across that list is thousands.
• Asphalt shingle roof cost$386 to $749per squareAn asphalt shingle roof costs $386 to $749 per square installed, so a 20 square roof is $8,200 to $15,400. The material is the smaller half of that; labour and tear-off are the rest.
• Tile roof cost$1,005 to $2,100per squareA concrete tile roof costs $1,005 to $2,100 per square installed. Weight is the first question, not price: tile asks a shingle-built structure to carry three times what it was designed for.
• Slate roof cost$1,785 to $4,200per squareA natural slate roof costs $1,785 to $4,200 per square installed. It lasts 75 to 150 years, and the real constraint is finding someone who can lay it rather than the price.
• Cedar shake roof cost$935 to $2,050per squareA cedar shake roof costs $935 to $2,050 per square installed. It is the only common roofing material that needs looking after, and the maintenance is the real cost.