As a Santa Cruz County homeowner considering upgrading your home with new replacement siding, you’ve likely seen two names come up: vinyl siding and fiber cement. Both are good options, and both have been installed on thousands of homes all over coastal California. But which is the best choice for your beach house in Capitola, your home in Aptos or your property in Scotts Valley?

After 30 years of putting siding on homes in Santa Cruz County — and thousands of conversations with homeowners trying to figure out this very decision — I can tell you: There’s no one-size-fits-all answer. But there are some hard facts about how these materials perform in our coastal climate that should guide your choice.

Let’s unpack it.

What is vinyl siding?

Vinyl siding is a plastic (polyvinyl chloride) product that is extruded into boards that look like traditional wood lap siding. Available in dozens of profiles, including traditional lap, Dutch lap, shakes, board & batten and hundreds of colors.

How vinyl works: The boards are hollow-backed (hollow core) or solid-core (like CraneBoard) and interlock horizontally, fastened to the house’s sheathing with a thin nailing strip along the top. The panels are built so they can float a little bit to expand and contract with the temperatures.

Vinyl advantages:

• Never needs painting, staining, or caulking, the color is integral to the material
• Highly resistant to rot, insects, and moisture damage compared to wood
• Low maintenance: wash with a hose once or twice a year if desired
• Affordable: typically $6–$22 per square foot installed
• Fast installation: experienced crews can cover a house quickly
• Wide variety of profiles and colors

Vinyl limitations:

• Hollow-back vinyl can warp or buckle in extreme heat or if installed improperly
• Vinyl expands and contracts with temperature swings, which can cause visible gaps at seams if not installed correctly
• Doesn’t look quite like real wood, some homeowners notice the plastic appearance, especially up close
• Can be damaged by impact (hail, falling branches) more easily than fiber cement
• Standard vinyl can fade over time in direct coastal sun (though modern formulations are much better)

What is fiber cement siding?

Fiber cement is a composite of Portland cement, sand, wood fiber, and water. It is then cut into boards that look very much like real wood siding. James Hardie is the most common brand. But there are other brands.

How fiber cement works The boards are installed much like wood siding with a nailing flange and attached directly to the sheathing. The material is stiff — it doesn’t expand or contract much with temperature changes — so seams stay tight.

Fiber cement advantages:

• Looks authentically like wood — very close to the real thing
• Can be painted any color and stained for a custom appearance
• Extremely durable: typically lasts 25–40 years even in harsh climates
• Doesn’t warp, buckle, or cup like wood
• Rigid material resists impact better than hollow vinyl
• Excellent for adding character and curb appeal with grain texture and finishes

Fiber cement limitations:

• Requires regular maintenance: repainting every 10–15 years is essential in coastal climates
• Needs caulking at seams and penetrations, which must be maintained
• More expensive: typically $20–$25 per square foot installed
• Heavier material requires more labor and skill to install correctly
• Can crack if improperly fastened or if the house settles unevenly
• Salt air in coastal areas can accelerate paint failure if the right coating isn’t used  
• You may need to tear off existing siding and put plywood down

The Coastal California Factor

Now we get to the practical part for Santa Cruz County homeowners.

If you live in Capitola, Aptos, Pleasure Point or any other coastal community, salt air, marine fog, UV exposure and temperature swings are unique challenges to your siding. These conditions accelerate paint failure on fiber cement and can result in premature seal failure on lower quality vinyl.

Coastal home owners: A key insight about fiber cement siding in a coastal California climate: The long-term cost is not just the install, but professional repainting every 10–15 years, which can be $5,000–$15,000 depending on the size of your home. You’ll need to budget for two or three full repaint cycles for a house that lasts 40 years.

For vinyl the coastal factor is pretty simple, use quality, coastal-rated vinyl (CertainTeed Celect or CraneBoard solid-core are good choices) and you can expect 30-40 years with little to no maintenance. Standard hollow-back vinyl can be a problem in coastal areas where you have heat and moisture, but the top shelf products made for these conditions are excellent.

Which Should You Choose?

“The best siding is the one you’ll maintain properly and that fits your home’s style and your budget — including long-term costs.”

Choose vinyl siding if you:

• Want low long-term maintenance and don’t want to repaint every 10–15 years
• Are budget-conscious and want to minimize future costs
• Live in a coastal area (Santa Cruz, Capitola, Aptos) where salt air is a factor
• Have a modern, contemporary, or ranch-style home where vinyl’s appearance works well
• Are looking for the best long-term value over 30+ years

Choose fiber cement if you:

• Have a craftsman, Victorian, colonial, or farmhouse-style home where authentic wood appearance matters
• Want the authenticity and character that only real-looking siding can provide
• Are prepared to repaint every 10–15 years as part of your home maintenance
• Value impact resistance and durability of a solid material
• Can budget for higher upfront costs and ongoing repainting cycles

Real-World Coastal Performance

For the past 30 years I have installed both materials in hundreds of homes in Santa Cruz County. Here is what I have seen in practice:

Vinyl homes: With quality coastal-rated products like Solidcore homes look as good at year 25 as they did at year 3. No fading, no paint failure and no major maintenance apart from the odd wash. Hollow-back vinyl installed 20+ years ago may sometimes show slight buckling or color fade, but these problems have been eliminated in solid-core vinyl products.

Fiber cement homes: The nicest-looking ones have been repainted on a regular basis. Paint failure is not an uncommon sight in homes where the original paint lasted 12+ years before being repainted, particularly in coastal areas where the salt air attacks unprotected paint. Fiber cement looks good if it’s well looked after. Fiber cement that has not been repainted looks tired fast.

The pattern is obvious: Vinyl requires no discipline to keep up with, while fiber cement requires diligence to keep up with (planning for repainting). Both are good choices but at different levels of commitment.

The Bottom Line for Santa Cruz County

If you’re on the coast in Santa Cruz County and you want something low maintenance and a great value in the long term, vinyl wins. If you’re inland (Watsonville, Ben Lomond, Felton) and the look of real wood is a priority over not having to paint again, fiber cement is a good option.

But the most important thing is this: Find an installer that knows coastal California conditions. Cheap vinyl installed poorly will fail fast. If you have someone put on fiber cement siding that doesn’t know what to do with coastal paint, you’ll be unhappy in 12 years.

For 30 years, Airtight Siding & Windows has been learning what works in the unique climate of Santa Cruz County. We are certified installers of CertainTeed Celect vinyl and James Hardie fiber cement siding. And give you an honest assessment of long-term costs, not just the up-front price. We’ll present you samples in your own light and present the pros and cons for your particular home.