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Richmond Sash Window Restoration – Full Timber Repair & Slimline Vacuum Glazing

Our team of experts specializes in restoring sash windows by converting conventional single glazed windows to cutting-edge vacuum insulated glazing (VIG) and incorporating advanced draught-proofing technology and complete restoration services for traditional wooden sash windows to achieve optimal performance and operational smoothness and improved security and energy efficiency.

Restore frames
Improve thermal insulation
Stop draughts and condensation

Keep character – boost efficiency

Installation of vacuum insulated glazing (VIG) takes place in timber sashes to maintain your window’s traditional appearance while providing better thermal performance than double glazing and current building standards.

Our VIG units meet the current energy standards yet exceed them thus ensuring your windows stay compliant with future regulations.

The combination of reglazing with full sash refurbishment and precision draught-proofing results in improved comfort because it blocks outside noise and stops moisture buildup and produces strong winter insulation to keep your home warm.

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Thermal image of a house showing heat loss around an original wooden window, highlighted with a white circle and annotation. Text above reads: "Same timber frame. Zero heat drain." Sash windows repair Essex keeps your home warmer and more efficient.

Glazing: The King of Thermal Efficiency

Windows consist mostly of glass and their thermal efficiency depends on glazing which accounts for 80 to 90 percent of their effectiveness. Proper glazing installation determines the system’s performance.

Our company utilizes vacuum insulated glazing (VIG) for all projects because it remains the premier energy-saving and most durable option in today’s market.

LandVac u-value performance vs other types of glazing

Glazing that fits original windows

The team installs ultra-slim vacuum insulated glazing (VIG) which fits perfectly into existing timber sash frames.

The installed solution maintains your original period windows’ appearance while providing the highest level of thermal capability.

A comparison chart shows five types of glazing, including double glazing sash windows, by heat retention, thickness, and retrofit suitability, with labeled images and measurements for each glazing type.

Before & After Transformations

The reglazing process solves all timber frame problems. The process involves rebalancing sashes and installing new sash cords as well as putty replacement and rot repair and new lock installation.

The final result provides original windows that appear new while containing the latest available market-leading glazing technology.