Siding Cost Calculator
Estimate siding replacement costs by material (vinyl, fiber cement, wood) and home size. Enter values for instant results with step-by-step formulas.
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\nStory surcharge (2 stories): $8,250 x 1.15 = $9,487.50\nOld siding removal: 1,500 x $1.50 = $2,250\nTotal = $9,487.50 + $2,250 = $11,737.50\nSquares 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\nStory surcharge (1 story): x 1.0 = $10,800\nOld siding removal: 1,200 x $1.50 = $1,800\nInsulation: 1,200 x $2.00 = $2,400\nTotal = $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 do I interpret the result?
Results are displayed with a label and unit to help you understand the output. Many calculators include a short explanation or classification below the result (for example, a BMI category or risk level). Refer to the worked examples section on this page for real-world context.