Siding in NYC & Long Island: The Honest Overview
Siding is the building's weather coat — and the difference between a 40-year siding job and a 15-year one is almost entirely in the weather barrier and flashing details behind it, not the panels you see.
Siding sits at the intersection of building science, local code, and what your property actually needs over the next 20 years. Gotham Home Services has been doing this work across all five boroughs and both Long Island counties for years, and we've seen every failure mode the climate, the soil, and the previous contractor can deliver. That history is why we approach every siding job the same way: figure out what the substrate, the structure, and the codebook all require, then deliver work that meets every one of those — not just the cheapest path through.
If you're reading this page you're probably weighing two or three contractors against each other, trying to figure out which one is being honest about scope and price. Our answer is straightforward: we tell you exactly what the job needs, we put it in writing with line items, and we don't change the number after the work starts. Below is the full picture of how we run siding projects — the why, the materials, the steps, the mistakes other crews make, and what it actually costs in 2026.
Long Island coastal homes do best in fiber cement or HZ5-rated James Hardie products that handle salt spray; NYC row houses are usually fiber-cement or composite for landmark compatibility.
- Wrong-installed siding leads to wall rot, mold, and structural framing damage
- Modern fiber cement and engineered wood carry 30–50 year warranties
- Vinyl is still the lowest-maintenance and most cost-effective for many NYC and LI homes
- Insulated vinyl improves energy performance meaningfully
Materials, Specs, and Why They Matter
Material selection is where most siding projects are won or lost. The wrong-grade material costs 10–15% less up front and fails in a fraction of the expected service life — that's not a hypothetical, it's the failure pattern we see every week when we get called in to fix someone else's recent work. The materials and specs we use on siding jobs aren't the most expensive on the market, but they are the right grade for the loads, the climate, and the substrate they're going on.
Every siding job we run uses the spec below as the baseline. When the site conditions call for an upgrade (heavier traffic, problem soils, exposure, historic-district compatibility) we'll quote the upgrade explicitly and explain why. When the site conditions allow a downgrade without affecting service life, we'll quote the downgrade and pass the savings through. The point is that the spec matches the job, not the other way around.
- James Hardie fiber cement (HardiePlank, HardieShingle)
- LP SmartSide engineered wood
- CertainTeed and Mastic vinyl siding lines
- Tyvek HomeWrap or comparable weather-resistive barrier
- Stainless or HDG nails per manufacturer spec
- Flashing tape at all penetrations
How We Actually Do the Work — Step by Step
One thing that separates real contractors from "guys with a truck" is that real contractors follow a documented process on every job, in the same order, every time. The siding sequence below is what every one of our crews runs — not what we wish they'd do, what they actually do. If a step is skipped, the job doesn't pass our internal QC and it doesn't get billed as complete.
We share this process publicly for two reasons. First, so you know what to expect: when you book siding with us, the steps below are the steps that happen, in this order, with photo documentation at each milestone. Second, so you can use it to evaluate any other quote you're considering. Ask the contractor across town what their process is — if they can't answer in this much detail, that's information.
- Tear off existing siding to sheathing
- Inspect and replace any rotted sheathing or framing
- Install weather-resistive barrier with proper overlaps
- Detail flashing at all windows, doors, and penetrations
- Install starter, trim, J-channels, and corner boards
- Hang siding panels per manufacturer's nailing pattern
- Caulk all transitions with paintable polyurethane
Mistakes Other Contractors Make — and What to Watch For
We get called in to fix recent siding work all the time — sometimes a year after the original install, sometimes within weeks. The mistakes are remarkably consistent, and almost all of them are avoidable with proper training and a no-cut-corners attitude on site. If you're vetting contractors, the list below is what to look for and what to ask about.
Some of these mistakes are technical (wrong mix, wrong gauge, wrong substrate prep). Others are procedural (no permit, no written warranty, no insurance certificate). And a few are commercial red flags — pressure to sign today, large up-front deposits, "cash discounts" that conveniently leave no paper trail. We've never asked a customer for cash, we don't take more than a reasonable mobilization deposit, and we don't pressure anyone to decide before they're ready.
Vinyl is lower cost and zero-maintenance. Fiber cement is higher upfront, lasts longer, and reads more upscale. We install both — selection depends on budget and resale strategy. Generally no — proper weather barrier and flashing inspection requires tear-off.
- No weather barrier or torn weather barrier left in place — eventual wall rot
- Wrong nail (galvanized in fiber cement, undersized in vinyl)
- Over-driving nails — pinches the panels, cracks fiber cement
- Missing kickout flashing at roof-wall transitions
What Siding Costs in 2026 — and What Moves the Number
Siding pricing in 2026: $6–$10/sq ft for standard vinyl, $9–$14/sq ft for insulated vinyl, $11–$17/sq ft for fiber cement, $14–$22/sq ft for cedar or premium engineered wood.
Pricing for siding is driven by a handful of variables that we lay out plainly in every quote. Two jobs that look identical from the curb can price very differently once you account for sub-grade condition, access, permit requirements, and finish level. That's why we don't give blind phone quotes — a 5-minute site visit is the difference between a number you can trust and a number that grows once the work starts.
Whatever the final number ends up being, it's documented before any work begins. Line-item scope, materials by spec, labor, permit, disposal, and any allowances all show up on the estimate. Change orders (when they're needed) are written, signed, and priced before the change happens. You never get a surprise invoice at the end.
Ongoing maintenance on siding is straightforward when the install is done right. The schedule below is what we recommend to every customer — follow it and the work we deliver lasts the full design life.
- Square footage of wall area
- Material chosen (vinyl < engineered wood < fiber cement < cedar)
- Trim and detail complexity
- Tear-off and disposal of existing material
- Maintenance: Annual rinse to clear mildew and pollen
- Maintenance: Re-caulk perimeters every 5–7 years
- Maintenance: Touch up paint on fiber cement every 12–15 years



