Siding Cost Calculator
Estimate siding replacement costs by material (vinyl, fiber cement, wood) and home size. Compare materials, lifespan, and total project costs.
Siding Cost Calculator
Calculator
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Formula: Total Cost = (Wall Area x Material Cost/sqft x Story Multiplier) + Removal + Insulation
Worked example — Estimated Total: $11,738 | Range: $8,288 - $15,188
Formula
Total Cost = (Wall Area x Material Cost/sqft x Story Multiplier) + Removal + Insulation
Where Material Cost per square foot includes both materials and labor, the Story Multiplier adds 15% per story above the first, Removal cost is $1.50/sqft if removing old siding, and Insulation adds $2.00/sqft if selected.
Worked Examples
Example 1: Vinyl Siding for Two-Story Home
Problem:Replace siding on a 2-story home with 1,500 sq ft wall area using vinyl, removing old siding, no added insulation.
Solution:Material + labor (mid): 1,500 x $5.50 = $8,250 Story surcharge (2 stories): $8,250 x 1.15 = $9,487.50 Old siding removal: 1,500 x $1.50 = $2,250 Total = $9,487.50 + $2,250 = $11,737.50 Squares needed: 1,500 / 100 = 15 squares
Result:Estimated Total: $11,738 | Range: $8,288 - $15,188
Example 2: Fiber Cement Upgrade with Insulation
Problem:Install fiber cement siding on a 1-story home, 1,200 sq ft wall area, remove old siding, add insulation.
Solution:Material + labor (mid): 1,200 x $9.00 = $10,800 Story surcharge (1 story): x 1.0 = $10,800 Old siding removal: 1,200 x $1.50 = $1,800 Insulation: 1,200 x $2.00 = $2,400 Total = $10,800 + $1,800 + $2,400 = $15,000
Result:Estimated Total: $15,000 | Range: $11,400 - $18,600
Frequently Asked Questions
How much does siding replacement cost on average?
Siding replacement costs vary significantly based on material, home size, and location. For an average-sized home with approximately 1,500 square feet of exterior wall area, vinyl siding costs between $5,250 and $11,250, fiber cement runs $9,000 to $18,000, and wood siding costs $7,500 to $18,000. These figures include both materials and professional labor installation. Additional costs for removing old siding typically add $1 to $2 per square foot, and adding house wrap or insulation adds another $1.50 to $3 per square foot. Multi-story homes cost more due to scaffolding and safety requirements, typically adding 10 to 20 percent per additional story above the first floor. Regional labor rates also significantly affect total project costs.
What is the best siding material for my home?
The best siding material depends on your budget, climate, desired appearance, and maintenance preferences. Vinyl siding is the most popular choice in America due to its affordability, low maintenance, and decent durability with a 30-year lifespan. Fiber cement siding like HardiePlank offers superior durability lasting 50 or more years, excellent fire resistance, and the look of real wood without the maintenance burden. Natural wood siding provides unmatched aesthetic beauty but requires regular staining or painting every 3 to 5 years and is susceptible to rot and insect damage. Engineered wood offers a middle ground with better moisture resistance than natural wood. For premium durability, stone and brick veneer can last 75 to 100 years but cost significantly more upfront.
How do I calculate how much siding I need?
To calculate siding needs, measure the total exterior wall area of your home. Multiply the length of each wall by its height, then add all walls together. Subtract the area of windows, doors, and other openings, which typically reduces the total by 10 to 15 percent. The siding industry uses squares as a standard unit, where one square equals 100 square feet. For a 1,500 square foot wall area you would need 15 squares. Always add 10 to 15 percent for waste, cuts around corners and openings, and potential damage during installation. For irregularly shaped homes with dormers, gables, or bay windows, consider measuring each section individually and adding them together. Getting accurate measurements saves money by avoiding over-ordering or costly mid-project material shortages.
Should I remove old siding before installing new siding?
Whether to remove old siding depends on its condition and your goals. Removing old siding is recommended when there is evidence of moisture damage, mold, rot, or insect infestation underneath. It also allows inspection and repair of the sheathing and house wrap before new siding goes on. The cost to remove old siding adds approximately $1 to $2 per square foot to your total project. Installing over existing siding, called re-siding or overlaying, saves on labor and disposal costs but may void manufacturer warranties and can mask underlying problems. Building codes in some jurisdictions limit the number of siding layers on a home, typically to two. Adding layers also increases the weight on your wall framing and changes the depth of window and door trim details.
How long does siding last and when should it be replaced?
Siding lifespan varies greatly by material. Vinyl siding lasts 20 to 40 years, fiber cement 40 to 50 years, wood siding 15 to 30 years with proper maintenance, engineered wood 25 to 30 years, aluminum 30 to 50 years, and brick or stone 75 to 100 or more years. Signs that your siding needs replacement include warping, buckling, or loose panels, significant fading or discoloration, frequent need for repainting more than every 5 years, visible rot or mold growth, cracked or crumbling sections, high energy bills suggesting failed insulation, and moisture or mildew inside the home. Catching problems early and performing regular maintenance such as cleaning, caulking, and painting can extend siding life considerably. Even durable materials benefit from periodic inspection.
How does siding cost compare on a cost-per-year-of-lifespan basis?
Looking at cost per year of expected life rather than sticker price often flips the value ranking: vinyl at a $5,500 mid-estimate over a 30-year lifespan runs about $183/year, while fiber cement at $9,000 over 50 years runs about $180/year — essentially a tie despite fiber cement costing 64% more upfront. Brick veneer at a much higher $16,000+ mid-estimate but a 100-year lifespan can work out to the lowest annualized cost of all, around $160/year. Siding Cost Calculator's annual-cost-over-lifespan figure in the results panel is calculated exactly this way, so use it (not just the upfront total) when comparing materials with very different lifespans.
How much does a story surcharge really add to a siding project?
Siding Cost Calculator applies a 15% surcharge per story above the first, reflecting the added scaffolding, lift rental or ladder-jack setup, and slower, more careful installation pace required at height. On a $9,000 mid-estimate single-story job, a second story adds about $1,350, and a third story (rare on residential homes but common on some townhomes) would add roughly $2,700 total versus the single-story baseline. Multi-story homes also typically take 20-30% longer to complete, which can extend the project timeline even when the crew size stays the same.
What is a rainscreen, and why does siding need a drainage plane behind it?
No siding is watertight — wind-driven rain gets behind panels at laps, corners and around windows. A weather-resistive barrier such as house wrap forms the drainage plane that carries that water back out at the flashing. A rainscreen adds vertical furring strips over the barrier, creating a ventilated air gap so the back of the siding can dry. That gap matters most for wood and fiber cement, whose back faces absorb moisture, and it is a common reason a re-side costs more than a bare per-square-foot rate.
What is the difference between cavity insulation and continuous exterior insulation when re-siding?
Cavity insulation sits between the studs, so heat still short-circuits through the framing itself — the thermal bridge that makes a wall's real performance lower than the batt's rated R-value. Continuous exterior insulation, usually rigid foam sheathing installed over the sheathing before the new siding, wraps the studs as well and also keeps the sheathing warmer, reducing condensation risk. Because a re-side already exposes the wall, it is the cheapest moment in a house's life to add it — which is what Siding Cost Calculator's insulation toggle prices.
Why must vinyl siding panels be hung loosely rather than nailed tight?
Vinyl expands and contracts noticeably along its length with temperature swings, so panels are hung, not fastened. Installers drive nails through the centre of the elongated nailing slot and stop short of seating the head, leaving the panel free to slide, and they leave a clearance gap where panels butt into corner posts and J-channel — larger in cold weather, when the panel is already contracted. Nailing tight or butting hard is the usual cause of the wavy buckling seen on a sunny wall.
References
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer · Editorial policy
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