Replacing old siding is one of the best ways to improve your home’s appearance, durability, and resale value. However, siding replacement can be costly, so it’s important to calculate the total expense before starting.
Our Siding Replacement Cost Calculator helps you estimate the cost of siding replacement by using wall measurements, openings (doors/windows), and the cost per square foot of siding material.
Formula for Siding Replacement Cost
Step 1: Calculate Wall Area
Wall Area=Wall Height×Wall Width
Step 2: Multiply by Number of Walls
Total Wall Area=Wall Area×Number of Walls
Step 3: Deduct Openings (Doors/Windows)
Opening Area=Opening Height×Opening Width
Total Openings=∑(All Openings)
Step 4: Final Siding Square Footage
Siding Square Footage=Total Wall Area−Total Openings
Step 5: Material Cost
Material Cost=Siding Square Footage×Cost per sq.ft of Material
Step 6: Total Replacement Cost
If you want to include labor/installation, then:
Total Replacement Cost=Material Cost+Installation Cost
(If labor is not included, the calculator can just return Material Cost.)
Siding Replacement FAQs
1. What is siding replacement, and why is it necessary?
Siding replacement involves removing old or damaged exterior siding from a house and installing new siding material. It’s necessary when existing siding is worn, cracked, warped, or no longer protects the home from weather, pests, or energy loss. Replacing siding can improve insulation, enhance curb appeal, and increase property value.
2. How much does siding replacement typically cost?
The cost of siding replacement varies based on factors like house size, siding material (e.g., vinyl, fiber cement, wood, or aluminum), labor rates, and geographic location. On average, homeowners can expect to pay between $5,000 and $15,000 for a standard-sized home, with high-end materials or larger homes costing more. For an accurate estimate, get quotes from local contractors.
3. How long does siding replacement take?
The timeline for siding replacement depends on the house’s size, the complexity of the project, and weather conditions. For an average-sized home, the process typically takes 1–2 weeks, including removing old siding, preparing surfaces, and installing new siding. Delays may occur for custom materials or unexpected structural repairs.
4. What are the most popular siding materials?
Common siding materials include:
- Vinyl: Affordable, low-maintenance, and versatile.
- Fiber Cement: Durable, fire-resistant, and mimics wood or stone.
- Wood: Natural look but requires regular maintenance.
- Aluminum: Lightweight, rust-resistant, but less common today.
- Brick or Stone: Premium, long-lasting, but expensive. Each material has unique benefits, so the choice depends on budget, climate, and aesthetic preferences.
5. Do I need to replace all the siding at once?
Not always. If damage is localized (e.g., one wall), you may replace only that section, provided the new siding matches the existing one in color and style. However, replacing all siding at once ensures uniformity, better weatherproofing, and long-term durability, especially if the existing siding is old or outdated.
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