Sample Pool Build · Greenwich, CT
The Connecticut Heritage Estate
A 16×36 gunite pool with pebble finish, automatic cover, and frost protection — cold-climate luxury done right.
LuxuryGunite· 18 weeks to swim
The Brief
A 1910 clapboard colonial called for a pool that wouldn't clash with the architecture. A restrained rectangle in bluestone and pebble, with every cold-climate provision engineered in from day one.
The builder specified post-tensioned concrete and a reinforced expansion-joint system specifically for the freeze-thaw cycling. PebbleSheen (not plaster) was a saltwater pairing and a 20-year surface life calculation — plaster in Connecticut is a maintenance-cycle choice most luxury clients skip.
An automatic pool cover with a dedicated hydraulic system was not optional. It lowers heating costs by roughly 40% during shoulder seasons, drops evaporation to near zero, and is required by the family's insurance carrier with two young children on the property.
Frost protection added roughly $7,200 in extra excavation depth, insulated expansion joints, and a dedicated drainage system around the shell. The builder has been doing New England pools for 28 years and treats frost provisions the way a Texas builder treats clay — engineered in, never improvised.
Line-Item Cost Breakdown
Real-world line items at 2026 pricing. Your build will differ — use this as a reference not a quote.
Shell: shotcrete, post-tensioned (576 sq ft)
$42,000
Excavation + frost overdig
$8,400
Engineering (structural + drainage)
$4,200
PebbleSheen Midnight finish
$14,200
Waterline tile (custom glass mosaic)
$5,800
Bluestone coping + 700 sq ft deck
$28,500
Plumbing + equipment pad (heated)
$8,400
Variable-speed pump + DE filter
$4,200
Saltwater chlorinator
$2,800
Heater (natural gas, 400K BTU)
$6,400
Automatic cover (hydraulic, full-size)
$18,500
LED lighting (4 pool, step, landscape)
$3,800
Electrical + subpanel
$4,800
Frost protection (insulation + drainage)
$7,200
Permits (Greenwich)
$2,400
Fence integration (existing stone wall)
$3,800
Winterization system + first-season close
$1,600
Landscape restoration
$5,400
What pushed cost up
Full-size automatic cover (insurance requirement)+$18,500
Frost protection package+$7,200
Post-tensioned shell (freeze-thaw)+$5,800
Northeast CCI premium (+22%)+$18,200
Natural gas heater vs heat pump+$3,200
What kept cost down
True rectangle (simpler form)−$9,800
No attached spa (planned separate)−$14,500
No vanishing edge or water features−$22,000