Considering double glazing for your existing frames?
While retrofitting offers an upgrade, a full uPVC replacement delivers dramatically superior thermal performance, security, and long-term value. We help you compare the costs and benefits so you can make an informed decision that truly solves cold, condensation, and poor insulation issues permanently.
The Limitations of a Retrofit Upgrade
Persistent Thermal Bridges
Retrofitting only addresses the glass, leaving the thermally inefficient old aluminium or timber frames in place. These old frames act as a thermal bridge, severely limiting the final R-Value.
Unaddressed Security and Draughts
Retrofitting fails to upgrade your aging locking hardware and perimeter air seals. This compromises security and allows continued air leakage and draughts around the frame.
Maximising Value with Full uPVC Replacement
Achieving True High R-Value Performance
A full replacement installs a complete system—frame, sash, seals, and glass. This is the only way to eliminate thermal bridging, achieving optimal R-Values and completely solving cold and condensation problems.
Security, Durability, and Maintenance
You gain modern multi-point security locking, durable weather seals, and frames that are guaranteed never to warp, rust, or require painting. The full replacement is a true long-term solution.
Cost Comparison and Investment
Analysing Lifetime Cost vs. Initial Investment
While retrofitting has a lower upfront cost, a full uPVC replacement offers significant long-term savings on energy bills and maintenance, leading to a much better return on investment and increased home value.
Comprehensive Warranty
Unlike retrofit, which may void original frame warranties, a full replacement is backed by a comprehensive warranty covering the entire uPVC system and installation work.
