A lot of homeowners searching "vinyl siding installation" in Dunedin are really just looking for a way to protect their home's exterior without spending a fortune. That's a reasonable goal, and we respect it. But we're going to be straight with you up front: Alpine Exteriors doesn't install vinyl siding, and we're not going to pretend it's a good fit for a home three miles from St. Joseph Sound. We install James Hardie fiber cement siding exclusively, on every job, in every Dunedin neighborhood we work in — from the bungalows off Edgewater Drive to the newer builds near the Pinellas Trail extension. This page explains why, in plain terms, so you can make an informed call before you sign anything.
Dunedin sits right on the water, and that changes what "durable siding" actually means here. Vinyl is a fine product in a lot of the country. It's just not built for the specific combination of conditions that a Gulf-front Pinellas County town throws at an exterior wall year after year.
Whether your house is on the Dunedin Causeway with a straight shot to the water or a few miles inland near Highlander Park, salt-laden air moves through this whole area. Vinyl panels are fastened with exposed nail heads and rely on interlocking joints that can corrode, chalk, and loosen faster in salt air than most manufacturers' literature admits. Fiber cement doesn't have that vulnerability — it's a cement, sand, and cellulose fiber composite that simply doesn't react to salt the way vinyl's surface coating does over time.
West Florida sun is intense for a long stretch of the year, and a west- or south-facing wall in Dunedin can run hot for hours at a time. Vinyl is a thermoplastic — it softens, expands, and contracts with heat, and dark colors are especially prone to warping and buckling. That's why vinyl manufacturers restrict how dark a color you can even choose. James Hardie fiber cement doesn't move with heat the same way, so it holds its shape and its factory-baked ColorPlus finish over decades, not seasons.
From June through November, Dunedin gets tropical systems that push rain sideways, not down. Vinyl siding is a lapped, floating system by design — it's meant to move slightly, which means it's also more prone to letting wind-driven water get behind it at the seams. Fiber cement, installed with proper flashing and a correctly lapped water-resistive barrier, gives wind-driven rain a lot fewer ways in.
James Hardie is the fiber cement siding we install on every home we side, no exceptions. It comes primarily in two profiles that cover almost every look a Dunedin homeowner is after:
We source Hardie specifically because it's engineered and tested for the Gulf Coast climate class, not adapted from a product built for a different region.
Dunedin has more architectural personality than a lot of Pinellas cities — original 1920s and '30s bungalows near the downtown core, mid-century block homes further out, and waterfront properties along the Causeway and Edgewater. Fiber cement takes trim detail, shadow lines, and a range of finishes more convincingly than vinyl, which matters when you're trying to keep a historic-feel home looking authentic rather than looking re-sided with a big-box material.
Several Dunedin communities have architectural review requirements around exterior materials and color. We've found Hardie's broader real-color range and trim compatibility makes it easier to satisfy those reviews without a fight, since it reads as a premium material rather than a budget swap.
| Factor | Vinyl Siding | James Hardie Fiber Cement |
|---|---|---|
| Wind-driven rain resistance | Depends heavily on installation; seams can admit water | Strong when flashed and installed correctly |
| Heat and UV stability | Can warp or fade, especially in dark colors | Dimensionally stable; ColorPlus resists fading |
| Salt air durability | Fasteners and seams more prone to degrade | Not reactive to salt exposure |
| Fire resistance | Combustible thermoplastic | Non-combustible core material |
| Typical lifespan | 15-25 years in coastal conditions | 30+ years with proper maintenance |
| Upfront cost | Lower | Higher, but lower cost per year of service life |
We're not saying vinyl is worthless everywhere — it isn't. We're saying that for a Gulf-adjacent city like Dunedin, the trade-off doesn't favor it, and we'd rather turn down a lower-cost job than install something we don't think will hold up on your house.
A proper fiber cement job is a system, not just panels nailed to studs. Here's the sequence we follow on every Dunedin project:
Every Dunedin home is different, so we don't quote fiber cement siding off a flat per-square-foot number without walking the property. The real cost drivers are:
We'll walk your home, look at the current siding and trim condition, and give you a real number tied to your actual house — not a ballpark that changes once we start.
Whatever material you land on, use this checklist before hiring anyone to side your home:
One reason we standardized on Hardie is that it's genuinely low-maintenance in this climate. With ColorPlus finish, you're not on a repaint schedule the way you would be with field-painted siding — an occasional rinse to clear salt residue and pollen is typically all it needs. If you ever do want to repaint, fiber cement takes paint well, which isn't always true of vinyl. Caulking at trim joints is the one item worth a periodic look, since UV exposure is what eventually breaks down sealants here faster than in less sun-intensive parts of the country.
If you came here searching for vinyl siding installation, we hope this gave you a clearer picture of why we build every Dunedin project around James Hardie fiber cement instead. We're happy to walk your home, look at what's there now, and put together a straightforward, no-pressure estimate — just fill out the form below and we'll get in touch.
No. We install James Hardie fiber cement siding exclusively across all of Dunedin, including waterfront and inland properties. We made this a company-wide standard because of how the coastal climate treats vinyl over time, not on a case-by-case basis.
Look up their license number directly on the Florida DBPR website rather than trusting what's on a truck or business card. Our license number is RB29003900, and you can verify it, along with any complaint history, in the same lookup.
HardiePlank is a horizontal lap siding available in several board widths, suited to most Dunedin bungalow and ranch-style homes. HardieShingle mimics a shaped-shingle look and is often used as an accent on gables rather than the full elevation.
Yes — ColorPlus is baked on at the factory under controlled conditions, which gives it better UV and fade resistance than a field-applied paint job typically achieves. It also comes with its own finish warranty separate from the substrate warranty.
Homes closer to open water see more consistent salt air and wind-driven rain exposure, so we pay extra attention to flashing at windows, doors, and penetrations on those properties. The siding material and fastening spec stay the same, but the water-management detailing gets more scrutiny the closer a home sits to the water.