Keystone sits apart from the rest of northwest Hillsborough County. It's horse country and lake country — big wooded lots, mature oak canopy, ranch-style estates, and a lot fewer strip-mall neighbors than you'll find closer to the interstate. Homes here tend to be older or custom-built, sit farther back from the road, and carry a lot of exposed wall area under heavy shade. That combination — shade, humidity, and often decades-old siding — is exactly the kind of job we specialize in. We're a licensed Florida siding company (RB29003900) that installs one product, James Hardie fiber cement, and we do it as a company process, not a one-off crew showing up with a truck.
This page is about us: how we work, what our warranty actually covers, and what a Keystone homeowner should expect from first call to final nail. If you want the deep material breakdown on Hardie boards themselves, that's covered elsewhere on the site — here we're focused on the company side of the job.
We made a decision years ago to stop offering vinyl, LP SmartSide, or other engineered wood siding, and we haven't looked back. It's not that those products can't be installed correctly — it's that we didn't want to keep managing the trade-offs that come with them: seams and panels that flex and gap in Florida heat, engineered wood cores that are more sensitive to moisture intrusion at cut edges and fastener points, and warranty structures that get complicated fast once a manufacturer starts asking about maintenance history. Fiber cement doesn't have those weak points, and standardizing on one product means our crews install it the same correct way on every job, every time.
Heavy tree cover keeps a house cooler, but it also keeps siding damp longer after rain — dew, sprinkler overspray, and slow-drying shade all add up over a wall's lifetime. Fiber cement handles that kind of sustained moisture exposure without swelling, delaminating, or feeding rot the way wood-based products can. It also won't warp or buckle in Florida's heat-humidity swings the way vinyl panels sometimes do over south- and west-facing walls that catch full sun through canopy gaps.
Fiber cement is noncombustible, which matters on wooded lots where brush and yard debris sit closer to exterior walls than in a typical subdivision. It's also a dense, rigid material that holds up well against the wind-driven debris that comes with Tampa Bay's storm season — a real consideration on properties with large old oaks overhead.
Every project follows the same sequence. We don't shortcut steps to move faster, and we don't add unnecessary ones to pad the invoice.
We walk the full exterior, not just the obviously damaged sections. On Keystone properties that often means checking north- and shade-facing walls closely, since that's where moisture sits longest and where old siding tends to fail first without visible warning. We check for soft sheathing, rot at trim and window returns, and any signs of past water intrusion before we ever talk numbers. The estimate breaks out material, labor, and any sheathing or trim repair separately, so you know exactly what you're paying for.
Old siding comes off down to the sheathing. We don't install new siding over old material or over sheathing we haven't inspected — that's how hidden rot gets sealed in and turns into a much bigger problem five years later. Damaged sheathing gets replaced, and we install a weather-resistant barrier before a single piece of Hardie board goes up.
James Hardie has specific fastening, clearance, and caulking specifications, and following them is what makes the difference between siding that lasts and siding that fails early at the seams. Correct nailing pattern, proper gaps at butt joints, and manufacturer-approved flashing at windows and doors are all non-negotiable on our jobs — this is also what keeps the James Hardie product warranty valid.
We walk the finished job with you, point out anything worth noting for future maintenance, and make sure every question is answered before we consider the project done.
Most single-family Keystone homes take about one to two weeks from tear-off to final paint or finish coat, depending on square footage, the amount of trim repair needed, and weather. Florida's summer storm pattern can push a schedule by a day or two here and there — we build that expectation in up front rather than surprising you mid-project. You'll hear demolition noise and see debris staged for removal during tear-off; we keep the site swept and materials organized daily rather than leaving cut-offs and packaging scattered across the yard, which matters more on larger wooded lots where debris can end up in landscaping beds you can't easily see from the driveway.
Two separate warranties apply to a Hardie siding job, and it's worth understanding the difference before you sign with any siding company.
| Warranty | Covers | Length |
|---|---|---|
| James Hardie product warranty | Manufacturing defects in the board or trim material itself | Non-prorated, manufacturer-backed (30 years on most HardiePlank products) |
| Our workmanship warranty | Installation — fastening, flashing, sealing, and finish work performed by our crew | Backed directly by Alpine Exteriors |
The product warranty only stays intact if installation follows Hardie's published specifications, which is another reason we don't deviate from manufacturer guidelines to save a step. If something goes wrong down the road, we want it to be clear which party is responsible and get it resolved without you having to referee between a manufacturer and an installer.
Pricing depends on more than square footage. A few things that move the number up or down on properties like the ones we see around Keystone:
| Factor | Effect on Cost |
|---|---|
| Sheathing/rot repair found during tear-off | Increases cost — often the biggest variable on older homes |
| Home size and wall complexity (gables, dormers) | More linear footage and cut angles raise labor time |
| Lap width and trim style chosen | Wider reveals and custom trim details add material cost |
| Site access on large wooded lots | Long driveways or tight tree clearance can slow staging |
| Prefinished vs. field-painted Hardie boards | Prefinished costs more upfront, saves on painting labor |
We work throughout Keystone and the surrounding northwest Hillsborough communities — Odessa, Citrus Park, Lutz, and the Cheval and Westchase areas — along with the broader Tampa Bay region. Keystone's mix of large-lot custom homes and older ranch properties means our crews are used to jobs that don't look like a standard subdivision tract house, and we scope estimates accordingly rather than applying a flat per-square-foot number that doesn't account for site conditions.
Florida requires a state contractor license for exterior work at this scale, and it's worth confirming before anyone starts tearing into your walls. We're licensed under RB29003900, fully insured, and we'll provide that information along with references and prior project details on request. Given how much rebuild work follows storm damage in this part of Florida, it's also worth asking any contractor directly whether they subcontract the work out or install it themselves — we use our own crews, not rotating subcontractors, so the person who quotes the job is accountable for how it's built.
If your Keystone home needs new siding, or you're just trying to understand what a proper James Hardie installation should look like before you commit to anyone, we're happy to walk the property with you. Reach out for a free, no-pressure estimate using the form below.
A dedicated siding company like ours works exclusively with fiber cement installation specs, fastening schedules, and manufacturer requirements every day, rather than treating siding as one of a dozen trades a general contractor manages. That focus is what keeps James Hardie's product warranty intact and reduces callback issues from incorrect installation.
Ask for their Florida contractor license number, proof of insurance, whether they use their own crews or subcontractors, and whether they'll separate material and labor costs in writing. You should also ask how they handle sheathing repair if rot is found during tear-off, since that's the most common source of mid-project cost surprises.
Standardizing on one manufacturer lets our crews install to a single, consistent specification on every job instead of switching techniques between brands. It also simplifies warranty claims, since there's no ambiguity about which manufacturer's requirements applied to your installation.
HardiePlank is lap siding installed in overlapping horizontal boards, the most common choice for traditional ranch and farmhouse-style homes in the area. HardiePanel is a vertical sheet product often used for accent sections, gables, or a more modern look — we'll recommend one based on your home's architecture during the estimate.
Heavy shade keeps walls damp longer after rain and irrigation, so shaded sections benefit from a closer look during routine inspections even though fiber cement itself isn't damaged by moisture the way wood-based siding can be. We flag those areas specifically during our walkthroughs on wooded lots like the ones common around Keystone.