Keystone sits in that stretch of northwest Hillsborough County where horse fences meet grand oak canopies and lots run big — Lutz, Odessa, and Citrus Park all blend into it depending on who you ask. It's inland, wooded, and quieter than the coast, but it is still Florida: heavy summer humidity, afternoon thunderstorms that roll in almost daily from June through September, and a tree canopy that drops leaves, pollen, and moisture onto exterior walls year-round. Siding here has to handle shade-driven humidity and organic debris as much as it handles sun.
Alpine Exteriors is a licensed general contractor (FL RB29003900) and we install one type of siding: James Hardie fiber cement. We don't carry vinyl, we don't carry LP SmartSide or other engineered wood panels, and we're not going to quote you three options and let you guess which one holds up. This page walks through why we made that call, what our process looks like from first call to final walkthrough, and what Keystone homeowners can expect working with us.
Vinyl siding is common because it's cheap and fast to install, but it has real limits in a climate like ours. It expands and contracts with heat, it can warp or buckle under direct summer sun exposure on south- and west-facing walls, and it's a plastic product that a stray branch or ladder impact will crack. In a neighborhood with mature oak trees like much of Keystone, falling limbs and wind-driven debris are a normal part of homeownership — vinyl doesn't handle that kind of impact well.
Engineered wood products, including LP SmartSide, use wood strand or wood fiber cores. Even with treated coatings, any wood-based product is more vulnerable to moisture intrusion than fiber cement, and Florida's humidity plus shaded, tree-covered lots is exactly the environment where wood-based siding is most likely to show problems over time — swelling at seams, softening at the bottom courses, and shortened paint life.
James Hardie fiber cement is cement, sand, and cellulose fiber. It doesn't burn, it doesn't rot, it isn't attractive to termites (a real consideration in this part of Florida), and it holds paint and color far longer than either alternative because it doesn't move with temperature swings the way vinyl does. It costs more upfront and it's heavier and more labor-intensive to install correctly. We think that trade-off is the right one for a house you plan to own for decades, not just the next five years.
Keystone's mix of dense tree cover and open pasture-style properties creates a range of microclimates within a few miles. A shaded lot under mature oaks holds humidity against exterior walls longer after a storm than an open lot catching full sun and wind. Homes tucked back off Gunn Highway or Race Track Road with heavy tree coverage need siding that resists mold and mildew growth in constantly damp, shaded conditions. Homes on more open, cleared lots deal more with UV exposure and heat cycling on south and west walls.
Fiber cement performs well across both conditions because it's not organic material feeding mold the way wood-based products can, and it's dimensionally stable enough that it doesn't crack or gap as it heats and cools. During Florida's June-through-November storm season, wind-driven rain is the real enemy of any siding system — not just the panel itself, but the water-resistive barrier, flashing, and seams behind it. That's where installation quality matters as much as the product.
Keystone doesn't get direct salt spray the way beachside Pinellas or coastal Hillsborough does, so salt-air corrosion isn't the concern it is for waterfront homes. But being inland doesn't mean storm-proof. Tropical systems tracking up from the Gulf still bring sustained wind and heavy rain well inland, and this area has seen its share of downed limbs and wind damage from named storms in recent years. We detail siding, trim, and flashing to shed wind-driven rain, not just vertical rainfall.
A siding job is really a moisture-management project with a finished appearance on top. Here's how we approach it on every Keystone home:
We walk the full exterior, check the condition of existing siding or sheathing, look for any signs of past water intrusion around windows, doors, and roof-to-wall transitions, and note tree coverage and drainage patterns specific to your lot.
Old siding comes off down to the sheathing. This is the point where hidden problems — soft wood, prior water damage, inadequate old flashing — get found and fixed before anything new goes up. Covering a bad substrate with new siding just hides the problem; we don't do that.
A new weather barrier goes on correctly lapped, and we install proper flashing at every window, door, and penetration. This layer is what actually keeps water out of your walls — the siding itself is the second line of defense, not the first.
Panels are installed per Hardie's published fastening and clearance specifications — correct nail placement, proper starter strips, and ground clearance to keep the bottom edge away from soil and mulch moisture. This is also where a lot of lower-quality installs cut corners; following spec is what makes the difference between a 30-year siding job and a 10-year one.
HardieTrim goes in at corners and openings, seams get sealed with a quality exterior sealant rated for Florida humidity, and we do a final inspection pass before walkthrough.
We go around the house with you, point out what was done, and answer any questions before we consider the job complete.
James Hardie backs its products with a manufacturer's limited warranty (30-year on most lap and panel products, with separate coverage on ColorPlus factory finishes) that transfers to a new owner if you sell the home within the coverage window — a real selling point if you're thinking about resale down the road. On top of that, our own workmanship warranty covers the installation itself, separate from the material warranty. If a problem traces back to how something was installed rather than a material defect, that's on us to fix.
| Coverage | What It Covers | Length |
|---|---|---|
| James Hardie Product Warranty | Material defects in the siding itself | Up to 30 years, non-prorated |
| ColorPlus Finish Warranty | Factory-applied color finish (fade, peel) | Separate coverage, per Hardie terms |
| Alpine Exteriors Workmanship Warranty | Installation quality — flashing, fastening, sealing | Provided at contract, reviewed with you before work starts |
Most single-family homes in the Keystone area take one to two weeks from tear-off to final trim, depending on square footage, how much of the substrate needs repair, and weather. Florida's summer storm pattern means we plan around afternoon rain — we're not going to leave a wall exposed overnight in an obviously bad forecast.
You'll know before we start what the daily plan looks like, and if we find something during tear-off that changes the scope — soft sheathing, old damage — we'll show you before we move forward, not after the invoice.
Old siding, cut-offs, and packaging get cleared daily. On tree-heavy lots we're also mindful of not leaving debris or nails in areas where pets or kids play.
We work throughout the Keystone community and the surrounding northwest Hillsborough and Pasco County area — Odessa, Lutz, Citrus Park, and the neighborhoods along Gunn Highway, Sunset Lane, and Race Track Road. If you're just outside that footprint, ask — we cover a wider radius across the greater Tampa Bay area.
If your siding is showing its age, or you're planning ahead for a home you intend to keep for the long haul, we'd be glad to take a look and give you a straightforward, no-pressure estimate. There's a request form right below this page — tell us a bit about your home and we'll get back to you.
We install one product because we can stand fully behind its long-term performance in our climate. Vinyl is less expensive upfront, but it performs worse under Florida heat, humidity, and storm conditions, and we'd rather not sell something we don't believe holds up over decades.
Florida general contractor licenses are searchable through the state's DBPR license lookup, and any legitimate contractor should give you their license number without hesitation. Ours is RB29003900 — always verify before signing a contract.
HardiePlank is the standard horizontal lap siding used across most of a home's exterior, while HardieShingle mimics a cedar shake look and is typically used as an accent on gables or specific architectural features. Both are the same fiber cement material, just different profiles.
If you choose a ColorPlus factory finish, the color is baked on at the factory and typically holds up significantly longer than field-applied paint, with its own separate warranty. Field-painted Hardie siding will need repainting on a normal exterior paint cycle, just like any painted surface.
Yes — this part of Florida has an active termite presence, and any wood-based siding product carries that risk regardless of treatment claims. Fiber cement contains no wood fiber for termites to feed on, which is one of several reasons we install it exclusively.