If you’re planning a siding replacement for your St. Louis home, cost is probably the first thing on your mind. The short answer: most St. Louis homeowners pay between $8,000 and $28,000 for a full siding replacement in 2026, depending on material, home size, and project complexity. A typical 1,800-square-foot home with vinyl siding runs $9,000–$15,000 installed, while premium fiber cement or engineered wood siding pushes that to $18,000–$28,000+.
As a St. Louis siding contractor who installs James Hardie, LP SmartSide, and vinyl siding every week, we see the real invoices — not the national averages that don’t account for Midwest labor rates or St. Louis building requirements. Here’s an honest breakdown of what you’ll actually pay in 2026, material by material.
How Much Does Each Siding Material Cost in St. Louis?
Material choice is the single biggest factor in your siding replacement cost. Here’s what the four most common options cost per square foot installed in the St. Louis market, including tear-off of existing siding, prep work, and trim.
| Siding Material | Cost Per Sq Ft (Installed) | Full Home Estimate (1,800 sq ft) | Lifespan |
|---|---|---|---|
| Vinyl Siding | $4.50–$8.00 | $8,100–$14,400 | 20–30 years |
| LP SmartSide (Engineered Wood) | $7.00–$12.00 | $12,600–$21,600 | 25–35 years |
| James Hardie Fiber Cement | $9.00–$15.00 | $16,200–$27,000 | 30–50 years |
| Board & Batten (Hardie or LP) | $10.00–$18.00 | $18,000–$32,400 | 30–50 years |
These ranges reflect real project pricing from our St. Louis installations. National cost guides often underestimate Midwest pricing because they average in lower-cost rural markets. In St. Louis proper and the surrounding counties, labor rates, disposal fees, and permit requirements push installed costs toward the middle-to-upper end of these ranges.
What Factors Affect Your Siding Replacement Cost?
Home Size and Wall Area
The most obvious cost driver. A 1,200-square-foot ranch with simple geometry costs significantly less than a 2,400-square-foot two-story with dormers, bump-outs, and multiple gables. We measure actual wall square footage — not floor area — because that’s what determines material and labor quantities.
Existing Siding Removal
Tearing off old siding adds $1.00–$2.50 per square foot to your project. Some contractors install new siding over old — we don’t recommend this. Layering siding hides moisture damage, prevents proper house wrap installation, and voids most manufacturer warranties. Removal and proper disposal typically adds $1,800–$4,500 to a full-home project.
Trim, Soffit, and Fascia Work
Siding replacement rarely stops at the siding itself. Most homes need new trim around windows and doors, updated soffit and fascia, and sometimes new J-channel or corner posts. Trim work can add 15–25% to your total project cost. If your existing wood trim is rotting — common in St. Louis’s humid summers — replacing it with aluminum-wrapped or composite trim during the siding project prevents future problems.
House Wrap and Moisture Barriers
Proper installation requires a weather-resistant barrier (house wrap) behind the siding. This is non-negotiable for long-term performance, especially in St. Louis where we get 40+ inches of rain annually and temperature swings from single digits to 100°F. Budget $0.50–$1.00 per square foot for house wrap installation.
Stories and Accessibility
Two-story and three-story homes cost more per square foot because of scaffolding requirements and slower production rates at height. Expect a 10–20% premium for second-story work and 20–30% for third-story sections.
James Hardie Siding Cost in St. Louis
James Hardie fiber cement siding is the most popular premium siding option in St. Louis, and for good reason. It’s fire-resistant, termite-proof, and handles our freeze-thaw cycles better than wood. Hardie’s HZ10 product line is specifically engineered for climates like ours with high humidity and temperature extremes.
Typical James Hardie project costs in St. Louis:
- HardiePlank lap siding: $9.00–$13.00 per sq ft installed
- HardieShingle staggered edge: $11.00–$15.00 per sq ft installed
- HardiePanel vertical siding: $10.00–$14.00 per sq ft installed
- Board & Batten style: $12.00–$18.00 per sq ft installed
Meridian is a James Hardie Elite Preferred installer, which means our crews are factory-trained on Hardie products and our installations qualify for Hardie’s full 30-year non-prorated warranty. Not all contractors carry this certification — and it matters, because improper installation is the #1 cause of Hardie siding failures.
LP SmartSide Siding Cost in St. Louis
LP SmartSide engineered wood siding has gained serious traction in the St. Louis market over the past few years. It’s lighter than fiber cement, easier to work with (which means faster installation), and delivers a natural wood-grain texture that paint holds exceptionally well.
Typical LP SmartSide project costs in St. Louis:
- Lap siding: $7.00–$10.00 per sq ft installed
- Panel siding: $8.00–$11.00 per sq ft installed
- Cedar texture shakes: $9.00–$12.00 per sq ft installed
- Trim and fascia: $5.00–$8.00 per linear foot installed
LP SmartSide’s biggest advantage over James Hardie is impact resistance. In a hail-prone market like St. Louis — where we see damaging hailstorms nearly every spring — engineered wood absorbs impact better than fiber cement. LP SmartSide carries a 5/50-year limited warranty that includes hail damage protection, which is a meaningful differentiator for insurance purposes.
Vinyl Siding Cost in St. Louis
Vinyl siding remains the most affordable option for St. Louis homeowners on a budget. Modern insulated vinyl has improved significantly from the thin, wavy panels of the 1990s, though it still doesn’t match the durability or curb appeal of fiber cement or engineered wood.
Typical vinyl siding project costs in St. Louis:
- Standard vinyl: $4.50–$6.00 per sq ft installed
- Insulated vinyl: $6.00–$8.00 per sq ft installed
- Premium/architectural vinyl: $7.00–$10.00 per sq ft installed
Vinyl’s main drawback in the St. Louis climate is heat distortion. On south- and west-facing walls that get direct afternoon sun in July and August, lower-grade vinyl can warp or buckle. If you choose vinyl, invest in insulated panels with a thickness of at least .044 inches — the added rigidity prevents most heat-related issues.
How to Choose the Right Siding for Your St. Louis Home
Choosing siding isn’t just about price — it’s about matching the material to your home, your neighborhood, and how long you plan to stay. Here’s how we help homeowners think through the decision:
- Staying 10+ years? James Hardie or LP SmartSide pays for itself through lower maintenance and longer lifespan. The higher upfront cost amortizes over decades.
- Selling within 5 years? Vinyl may make more financial sense — you’ll recoup a higher percentage of the cost at resale without overimproving for the neighborhood.
- Historic district or HOA restrictions? James Hardie and LP SmartSide both offer profiles that comply with most architectural review requirements in St. Louis historic neighborhoods like Kirkwood, Webster Groves, and Clayton.
- Concerned about hail? LP SmartSide offers the best impact resistance. Vinyl cracks on impact. Hardie can chip. Engineered wood flexes and bounces back.
Financing Your Siding Replacement
A full siding replacement is a significant investment. Most homeowners don’t have $15,000–$25,000 sitting in a checking account, and that’s perfectly normal. Meridian works with financing partners that offer low monthly payment options so you can get the siding your home needs without draining your savings.
If your siding damage is storm-related, your homeowner’s insurance policy may cover part or all of the replacement cost. We work with insurance adjusters regularly and can help you navigate the claims process — including documenting damage, meeting with your adjuster on-site, and ensuring your claim reflects the full scope of work needed.
Get a Free Siding Estimate in St. Louis
Every siding project is different, which is why online calculators only get you so far. Meridian provides free on-site inspections with transparent, itemized estimates — no pressure, no surprises, just honest numbers so you can make an informed decision. We’ll measure your home, assess any underlying damage, and walk you through your options material by material.
Call us at 314-952-4158 or request your free siding estimate online.
Siding Replacement Cost FAQs
How much does it cost to reside a 1,500-square-foot house in St. Louis?
For a 1,500-square-foot home in St. Louis, siding replacement costs $6,750–$12,000 for vinyl, $10,500–$18,000 for LP SmartSide, and $13,500–$22,500 for James Hardie fiber cement. These installed prices include tear-off, house wrap, and standard trim work. Actual cost depends on wall area, number of stories, and trim complexity.
Is James Hardie siding worth the extra cost?
James Hardie siding is worth the premium for homeowners planning to stay in their home long-term. It lasts 30–50 years with minimal maintenance, resists fire and termites, and holds paint 2–3 times longer than wood. In St. Louis, the HZ10 product line is specifically designed for our freeze-thaw climate. The higher upfront cost pays off through lower lifetime maintenance and stronger resale value.
How long does a siding replacement take?
A full siding replacement on a typical St. Louis home takes 5–10 business days, depending on home size, material choice, and weather. Vinyl installs fastest (5–7 days), while James Hardie and LP SmartSide take slightly longer (7–10 days) due to the precision cutting and sealing required. Rain delays can extend the timeline during St. Louis’s spring storm season from March through June.
Does new siding increase home value in St. Louis?
New siding returns 60–80% of its cost at resale in the St. Louis market. James Hardie fiber cement siding consistently delivers the highest ROI among siding materials — often 70–80% — because buyers recognize it as a premium, low-maintenance product. Beyond direct ROI, new siding eliminates a major objection for buyers during home inspections.
Can I install new siding over existing siding?
While technically possible, we don’t recommend installing new siding over old. Layering traps moisture between the old and new siding, which leads to mold, rot, and structural damage that’s invisible until it becomes a major problem. It also prevents proper house wrap installation and voids most manufacturer warranties. The $1,800–$4,500 cost of tear-off is worth the protection it provides.
Does homeowner’s insurance cover siding replacement?
Homeowner’s insurance covers siding replacement when the damage is caused by a covered peril — typically wind, hail, or fallen trees. Normal wear and tear is not covered. In St. Louis, hail damage is the most common insurance-covered siding claim. If you suspect storm damage, file your claim promptly and have a contractor document the damage before temporary repairs. Meridian works directly with insurance adjusters to ensure your claim reflects the full scope of work.
