Finishing Touches & A Fully Comprehensive Service

Finishing Touches Our customers are often surprised by just how comprehensive our standard service is, and we are frequently asked why we provide these ‘finishing touches’ when most other installers do [...]

Period Windows

Overview Sash windows were popular throughout the following historical periods: The Georgian Period (1714 – 1837) The Victorian Period (1837 – 1901) The Edwardian Period (1901 – 1910) During this 196-year [...]

Low Emissivity Glass

What is Sunlight? ‘Sunlight’ is radiation from the Sun. Typically, the Solar Radiation that hits the surface of the Earth can be broken down into three parts:   Infrared Infrared Radiation [...]

Traditional Front Door

Traditional Front Doors in london, UK Design: The Traditional Front Door has 4 panels, with each panel made of either Engineered European Redwood, or Low-Emissivity Double Glazed Units, at the customer’s [...]

Thermal Efficiency and U-Values

What is a U Value? A U Value is the measurement of how effective a particular material is as a heat insulator. The formula for calculating a material’s U Value is [...]

Sound Reduction

What is sound? ‘Sound’ is vibration that travels in waves. These sound waves will ripple out in all directions from the source of the sound, much like water will ripple in [...]

Replacement vs Repair

You’re not happy with your existing sash windows and doors. So what do you do? Repair or replace? Here at Core Sash Windows, we have tried our very best to summarise [...]

Timber vs uPVC Windows

Maintenance and Repair   It is often claimed that uPVC sash windows require no maintenance. Whilst it would be lovely if this were true, unfortunately it is not: there is no [...]

Glossary of Sash Window Terms

At Core Sash Windows, we have created this helpful Glossary of Sash Window Terms. Hopefully it will help you to understand just exactly what our surveyors are saying! Architrave: The moulded [...]

Conservation Areas and You

How could living in a conservation area affect me? Since 1967, over 9000 conservation areas have been designated across England. In these conservation areas, the local authority is granted extra controls [...]