Vinyl Windows
Two Energy Star certified window lines from National Vinyl, measured and installed by our team. Quieter rooms, fewer drafts, and lower energy bills, backed by a fully transferable lifetime warranty.
Destiny and NorthWind: which window fits your home?
We carry two Energy Star certified window lines from National Vinyl. Destiny is the premium option: an all-welded frame and sash, Ccore polymer reinforcement, Gold Series triple-finned weather stripping that seals about 25% tighter than a standard fin seal, and a glass breakage warranty no other line offers. NorthWind III is the mid-tier choice: a fusion-welded frame, Energy Star certified, virtually maintenance-free, and backed by a lifetime limited warranty.
Both lines are manufactured by National Vinyl and installed by our team. Energy Star certified glass keeps conditioned air inside and seals out drafts, so rooms stay quieter and more comfortable year-round while reducing UV fading on floors, furniture, and photographs. If you choose Energy Star triple-pane replacement windows, HCP is an Energize CT authorized contractor and can file the $100-per-window Energize CT rebate on your behalf.

Quick comparison
Triple-pane Destiny for maximum efficiency and quiet
Dual-pane NorthWind for solid performance at a lower cost
Custom color matching for any home exterior
Energize CT rebate filed for you on triple-pane upgrades
After your windows are installed
A memory-foam bulb seal at the sash and sill — similar to the gasket on your refrigerator — holds its shape after months of compression, blocking air and water infiltration. Multi-chambered frames and sashes add insulating value. Gold Series triple-finned weather stripping on Destiny seals about 25% tighter than a standard fin seal, which also reduces outside noise.
Energy Star certified glass reduces heating and cooling loss in every season. R-5 triple-pane glass cuts heat loss 30–40% versus a typical Energy Star window — putting these among fewer than 60 window lines nationwide on the DOE R-5 program. As an Energize CT authorized contractor we file the $100-per-window triple-pane rebate on your behalf.
Fully transferable lifetime limited warranty covers all structural components (jambs, sashes, balances, casings, sills), movable parts, and glass against seal failure. Destiny adds glass breakage coverage. Virgin vinyl never needs painting or refinishing. Low-E glass reduces UV transmission, protecting floors, furniture, drapes, and photographs from sun fading.
Glass, shapes, colors, and hardware
Our vinyl window lines come in dozens of configurations — from standard double-hung to specialty arched shapes, and from basic white vinyl to custom-matched paint finishes.
Explore your window options
We install premium window lines backed by manufacturer warranties.
Destiny Windows
Premium all-welded vinyl with lifetime warranty
NorthWind III
Triple-pane vinyl with argon gas fill
Vinyl Windows
Energy-efficient vinyl replacement windows
Energy Efficiency
Air sealing, ductwork, and indoor air quality improvements for the whole home.
Heat Pumps
Ductless and forced-air heat pumps with significant rebates available.
Home Energy Solutions audit
Includes about $1,000 in services and unlocks rebates across your home.
Water Heaters
Heat pump water heaters and high-efficiency tank replacements.
Air Sealing
Seal gaps and cracks that let conditioned air escape and outdoor air in.
Ready to upgrade your windows?
Free estimates for Destiny and NorthWind window installations -- measured, installed, and warranted by our team, with the Energize CT triple-pane rebate filed for you.
