Alpine Exteriors is a licensed Florida contractor (RB29003900) that installs one product line, James Hardie fiber cement siding, and nothing else. We don't carry vinyl, LP SmartSide, or any other engineered wood system, because we'd rather be genuinely good at one material than average at five. In a city like Dunedin, that focus matters more than it might elsewhere. This isn't a place where every home faces the same conditions or shares the same architectural style, so a siding installation here isn't a one-size job.
A house a few blocks off St. Joseph Sound deals with different wind and salt exposure than one east of Alternate 19 near Curlew Creek. A 1920s bungalow in the Historic District has different trim and reveal requirements than a 1990s block home in a newer subdivision. This page walks through what actually goes into a full siding installation in Dunedin — the climate factors, the coastal-versus-inland differences, the neighborhood character, and the real steps a project goes through from tear-off to finished wall.
Pinellas County sits in a subtropical climate zone, which means siding here is rarely given a real break from heat and moisture. Long stretches of intense sun bake painted and laminated surfaces, while overnight humidity keeps walls from fully drying out between rain events. Materials that rely on a painted surface film to stay weathertight — rather than a factory-baked finish — tend to show fading, chalking, and edge wear faster in this kind of cycle than they would in a drier climate.
From June through November, Dunedin is squarely in Gulf hurricane season. Even in years without a direct landfall, tropical systems push sustained wind and horizontal, wind-driven rain through the area multiple times a season. That combination is harder on a wall assembly than a straight downpour, because water gets forced sideways and upward against laps, seams, and trim rather than simply running down. Fastener pattern, flashing detail, and how tightly a siding profile locks together all matter more here than they would in a calmer climate — which is a big part of why we standardize on one system we know inside and out rather than juggling several.
Dunedin is small enough that "coastal" and "inland" can be a five-minute drive apart, but the exposure difference is real and it changes how we plan a job.
Homes along Edgewater Drive, near the marina, or along the causeway corridor toward Honeymoon Island sit close to St. Joseph Sound and get more direct salt air and wind than homes a mile inland. Salt-laden air accelerates corrosion on fasteners and hardware and can degrade a weaker finish faster. For these homes, we pay extra attention to corrosion-resistant fastener selection and make sure every flashing detail is done right the first time, since these houses simply take more of a beating over a given year than a home tucked into a shaded inland block.
Move toward Curlew Creek, San Christopher, or the neighborhoods east of Alt. 19, and salt exposure drops off, but heat retention and humidity often go up — mature tree canopy holds moisture against north-facing walls longer, and afternoon storm cells can sit and dump rain over inland pockets even when the coast stays dry. These homes deal less with salt corrosion and more with prolonged dampness on shaded elevations, which is its own kind of wear on siding and trim.
Downtown Dunedin and the surrounding historic blocks have a real concentration of early-20th-century bungalows and Craftsman-style homes with narrower lap reveals, deeper trim, and porch detailing that a modern subdivision house doesn't have. Re-siding one of these well means matching board width and reveal to what the house was built with, keeping trim proportions consistent, and not flattening out the architectural character just because the material underneath changed. James Hardie's lap and trim lineup gives us the range to do this without forcing a historic home into a generic modern look.
Newer builds and the cottage-style homes common in Dunedin's golf-cart-friendly neighborhoods generally give us more flexibility — cleaner lines, simpler trim packages, and more room to use a contemporary reveal or a board-and-batten accent if the homeowner wants one. The install process is the same underlying system either way; the difference is in how much customization the existing architecture calls for.
We made a deliberate decision years ago to stop offering multiple siding brands. Every product has its own fastening pattern, its own flashing tolerances, and its own failure points, and a crew that splits its attention across several systems ends up mediocre at all of them. By installing James Hardie exclusively, every crew member knows the fastening spec, the clearance requirements, and the flashing details cold, on every job, every time.
It also means we don't install vinyl, which can soften, warp, or blow off in sustained coastal wind, and we don't install LP SmartSide or other engineered wood products, which rely on cut-edge sealing to keep moisture from wicking into the substrate — a maintenance dependency we'd rather not build a Dunedin homeowner's wall around. Fiber cement doesn't rot, doesn't feed termites, and doesn't soften in heat. That's our standard, not a claim that every other product on the market is unusable — it's simply the trade-off set we're not willing to install behind our name in this climate.
A full siding replacement is more than swapping old boards for new ones. Here's what's actually part of the scope on a properly done job:
Several of these factors also drive what a project costs. The table below covers the main ones we walk homeowners through during an estimate.
| Cost Factor | Why It Matters on a Dunedin Home |
|---|---|
| Total wall square footage and number of stories | More material and more staging time on two-story or waterfront homes with limited ground access |
| Trim and architectural complexity | Historic District bungalows and homes with deep porch or gable detailing take more cutting and fitting time than a simple rectangular elevation |
| Condition of the existing sheathing | Homes with hidden moisture damage need substrate repair before new siding goes up, which isn't visible until tear-off |
| Siding profile chosen | Lap siding, board and batten, and shingle profiles differ in material and labor time |
| Access and site conditions | Tight lots, fencing, landscaping, or waterfront setbacks affect how quickly a crew can stage and work |
Some homeowners call us after noticing an obvious problem, but siding often gives quieter warnings first. Watch for these:
None of these automatically mean a full replacement is required — sometimes it's a repair, sometimes it's isolated to one elevation that's taken the worst of the weather. That's exactly why an in-person look matters more than guessing from a list.
Most single-family homes in Dunedin move through a full siding installation in about one to two weeks from tear-off to finished trim, depending on square footage, trim complexity, and weather delays — hurricane season storm cells can push a schedule out a day or two here and there, which we build into planning rather than treat as a surprise. The rough sequence looks like this: tear-off and sheathing inspection first, then any substrate repair, then the weather-resistive barrier and flashing package, then the siding itself starting typically at a corner and working across each elevation, and finally trim, caulking, and touch-up. We walk every homeowner through where their project sits in that sequence rather than leaving it a mystery until the crew shows up to load out.
James Hardie's lineup gives us real options depending on the house. HardiePlank lap siding is the most common choice and works well on both historic bungalows and newer construction when the reveal width is matched correctly. Board and batten reads well on cottage-style and coastal-influenced homes, especially as a gable or accent treatment. HardieShingle can suit a home with more traditional detailing where a shingle look fits the block. On finish, factory-applied ColorPlus coating is baked on under controlled conditions and holds color more consistently through Dunedin's UV load and humidity swings than a field-applied paint job typically does over the same years, which is why we recommend it on most jobs unless there's a specific reason to field-paint.
If your Dunedin home is due for new siding, or you're just not sure whether what you have is a repair or a replacement, we're glad to take a look and walk the property with you. There's a free, no-pressure estimate form below — no obligation, just an honest read on where your home stands.
A repair addresses damage isolated to a section of wall where the sheathing and surrounding boards are still sound, while a replacement means the whole elevation or home has aged past the point where patching makes sense. The decision comes down to what's found once old material is pulled back or closely inspected, not a guess from the street. A contractor should be able to explain specifically why they're recommending one over the other.
Florida contractor licenses like our RB29003900 can be looked up directly on the state's DBPR license verification site to confirm they're active and in good standing. Homeowners should also confirm current liability insurance and workers' compensation coverage, since an uninsured crew shifts risk onto the homeowner if something goes wrong on site. Any contractor should be willing to provide this information without hesitation.
HardiePlank is a horizontal lap board and the most common profile, well suited to both traditional and contemporary home styles. HardieShingle mimics a staggered or straight-edge shingle look and tends to fit homes with more traditional coastal or cottage detailing. The choice usually comes down to matching the home's existing architectural style rather than one being objectively better than the other.
James Hardie backs the fiber cement substrate itself with a long-term limited warranty, and the factory-applied ColorPlus finish carries its own separate finish warranty covering fading and peeling for a set number of years. A field-applied paint job over standard fiber cement doesn't carry that same manufacturer-backed finish coverage, since it depends on the paint product and application rather than a controlled factory process. It's worth asking any contractor to show the specific warranty documentation for the exact product being installed.
Homes within Dunedin's designated historic areas can be subject to architectural review before exterior changes are approved, which is worth checking with the city before assuming a straightforward swap. Waterfront and flood-zone properties may also have additional building code or elevation-related considerations depending on the specific parcel. We factor this into planning on affected properties so there are no surprises mid-project.