Concrete vs. Fiberglass Pool Cost in the Carolinas: A Real Breakdown

Most published pool prices stop at the shell. Real Carolina backyards include the shell plus excavation, deck, fence, electrical, gas (if heated), automation, equipment pad, landscape repair, and permitting. A complete number bundles all of that - and that's the number we quote.

We break every Rock Water proposal into four buckets: shell + structure, equipment + automation, hardscape + deck, and site + access. That structure makes it easy to see where each dollar goes and which choices move the total.

A premium fiberglass installation in our market - turnkey, including everything below - runs $60,000 on the small end to $140,000 on the high end.

• Shell + delivery + crane: $30,000–$55,000 (depends on shell size and manufacturer)
• Excavation, backfill, and base: $6,000–$12,000
• Plumbing, equipment pad, salt cell, heater: $9,000–$18,000
• Concrete or travertine deck: $8,000–$25,000+ (largest variable)
• Permits, inspections, electrical, fence: $7,000–$14,000
• LED lighting, automation, landscape repair: $4,000–$12,000

Premium upgrades - integrated spa shell, larger deck footprint, premium travertine or bluestone, and full automation - push fiberglass installs toward the upper end.

A custom concrete build in NC or SC starts around $95,000 for a small geometric shell and runs above $400,000 for estate-scale builds with vanishing edges, raised spas, integrated outdoor kitchens, and premium tile and coping.

• Shell (excavation, steel, plumbing, shotcrete): $40,000–$120,000+
• Interior finish (StoneScapes / PebbleSheen / quartz): $9,000–$28,000
• Tile + coping (travertine, bluestone, custom): $8,000–$45,000+
• Equipment + automation (Pentair / Hayward): $10,000–$22,000
• Deck (size and material drive this): $15,000–$80,000+
• Permits, fence, electrical, landscape: $9,000–$22,000
• Premium features (spa, vanishing edge, fire bowls, water features): add $15,000–$120,000+

Three factors explain most of the spread on any Carolina build: deck size and material, premium features, and site access.

Deck is often underestimated. Doubling deck square footage on a concrete build can add $25,000–$50,000. Premium materials - travertine, bluestone, porcelain pavers - add $8–$25 per square foot over poured concrete.

Premium features stack quickly. A vanishing edge alone is typically $30,000–$60,000 over the same shell without one. A raised spa with a sheer-descent spillway adds $18,000–$32,000. Six gas fire bowls on automation: $14,000–$22,000.

Site access matters more than people expect. Tight-access lots in The Peninsula or Davidson sometimes require crane work and tree-protection that adds $4,000–$15,000. We assess this during the first site visit so it's never a surprise mid-build.

Choose fiberglass if you want a shorter timeline (8–12 weeks vs. 14–22), lower lifetime maintenance, and the manufactured shell shapes work for you - most include a tanning shelf and many include integrated spas.

Choose concrete if you want a custom shape, depth over 6 feet, an integrated spa or vanishing edge, premium tile work, or any combination the manufactured fiberglass shells can't deliver. Concrete also wins on long-term resurface flexibility - every 15–25 years you can refresh the interior, change colors, and modernize.