Chronic cold, severe condensation, and drafts are widespread issues caused by old aluminium joinery in many Wellington homes.
Our full uPVC double glazing replacement is the definitive thermal upgrade, resolving dampness and dramatically lowering your high energy consumption..
Why uPVC is the Essential Aluminium Upgrade
Eliminate Condensation & Thermal Bridging
Aluminium is a heat conductor, leading to massive heat loss and persistent condensation on the frame itself. Our non-conductive uPVC eliminates this thermal bridge entirely, creating a healthier, drier internal environment.
Unmatched Wind-Load Security & Durability
Engineered for the highest wind-zone ratings, our steel-reinforced uPVC systems with multi-point locking provide superior structural stability and integrity that aluminium cannot match against the intensity of the southerlies.
Comparing uPVC vs. Aluminium (R-Value)
True R-Value Performance Comparison
Even thermally broken aluminium fails to match the combined frame and glass R-Value of a complete uPVC system. We focus on delivering the highest performance to drastically cut your heating expenditure during the cold season.
Maintenance and Lifecycle Cost
Coastal exposure leads to corrosion and hardware failure in aluminium. uPVC requires virtually zero upkeep, is impervious to salt, and offers superior longevity, ensuring better value and performance over its lifetime.
The Eco Windows Full Replacement Process
Seamless, Weather-Tight Installation
We guarantee maximum thermal benefit by removing the old frame entirely and installing the new uPVC system with full weather-tight flashing, sealing your home perfectly against the elements.
Peace of Mind Warranty
Our comprehensive warranty covers the entire uPVC product and our professional installation, providing confidence in your home’s most important structural and thermal upgrade.






