Replacing Wooden Windows: Conserving Energy and Heritage

Many property owners in the United Kingdom today are confounded by the ethical dilemma presented when they are considering replacement windows for their home or building. Legal obligations for reduced energy consumption and greater environmental protection play an important part is this decision, as regulations regarding energy efficiency have become much more stringent in the last few years. Adding to the dilemma are the issues of conservation requirements and restrictions for period property owners of listed structures. Great strides, however, have been made in the design and manufacture of replacement windows, which better serve to satisfy all parties involved in the dilemma of having to replace wooden windows in a home or building.

Repairing existing windows rather than replacement is most often preferred, especially for historically significant properties to retain and protect their distinguishing integrity of character, traditional charm and architectural period authenticity. When repair is unfeasible or even impossible, however, replacement windows should match the original as closely as possible, with special care taken to use timber above all other material. So many homes and buildings in the UK are still blessed with original wood windows that are hundreds of years old because timber is most superior by way of its durability and longevity factors.

Timber is also a naturally sound choice for its insulation properties and performs best in terms of thermal efficiency standards. The production and manufacturing of wood windows also requires far less energy than that consumed during the construction of man-made alternatives like aluminium and uPVC. Because wood is a natural, sustainable, renewable and recyclable substance, the use of timber windows is also much better for the planet as opposed to the profoundly negative environmental impact of man-made material when disposed in landfills or incinerated.

For owners of homes and buildings in listed conservation areas, replacing wood windows to meet current energy efficiency regulations while at the same time complying with period property obligations can still be a challenge. Whereas double-glazed windows are most often recommended for energy efficiency reasons, a listed property can suffer the loss of its original architectural significance, its aesthetically appropriate appearance and, subsequently, its value. In some instances, single-glazed replacements may be allowed if other energy-saving and insulating measures are taken to compensate, such as adding more insulation between walls and in the attic space and using interior shutters. To qualify for this allowance consideration, property owners need to consult with a conservation officer during the consent application process.

For homeowners wishing retain the historical significance, appearance and value of their property by using wooden replacement windows, certain grant schemes aimed at private owners and occupiers of such sites can help to offset the expense. Some grants available through government agencies and heritage foundations include Home Energy Saving Programme and Home Repair Assistance Grants. The Energy Saving Trust (EST) can also advise property owners of available grants or efficiency schemes.

When window replacement is necessary, a reputable, experienced joinery can expertly match the design and architectural features of the originals combined with modern enhancements to create bespoke windows that protect historical character, improve energy efficiency, and satisfy regulations at the same time.