A Guide to Installing and Maintaining Windows in a Period Property

How will installing the right windows affect my home’s value and curb appeal?

Installing high-quality, period-appropriate windows can positively impact both. It can help increase property value because modern, high-quality windows can enhance the value of your home by improving energy efficiency, security and overall aesthetics. Buyers often appreciate the benefits of well-installed windows. You will enjoy enhanced curb appeal because new windows can significantly boost your home’s exterior appearance. By replicating the historical style or complementing the existing architecture, your home is visually enhanced and looks well-maintained. In addition, energy-efficient windows reduce heating and cooling costs, which can be attractive to potential buyers. So this efficiency can be a selling point, highlighting long-term savings. Finally, for period homes, installing windows that match the historical style can maintain or even increase a home’s value by preserving its character while complying with conservation guidelines.

Period homes have unique architectural details and regulations regarding preservation – how important is it to work with a company experienced in this area?

It’s imperative due to the unique architectural details and strict regulations involved. Conservation areas demand suppliers who can accurately replicate original designs, ensuring that any updates or replacements blend seamlessly with the property’s historical character. Accurately replicating frame profiles, glazing bars, curvature and lead bar detailing is often specified in planning guidelines. These details are emphasised within conservation areas with a key requirement being that window replacements are made of timber. Craftsmanship of this kind needs a combination of advanced factory machinery and expert knowledge to ensure timber is accurately surveyed, crafted and installed to meet both aesthetic and building regulations.

Why does it matter that new windows align with the historical aesthetic of a property?   

It’s crucial that new windows match the historical aesthetic, including details like sash styles, glass types and frame materials. Deviations from these elements could result in windows that look out of place compared to your neighbours’ or fail to meet conservation guidelines, necessitating replacement. Trust in your supplier is paramount and visiting showrooms or local references allows you to inspect the product firsthand, ensuring it meets your expectations.

Period homes often feature wooden windows, but modern materials can offer better durability and energy efficiency – what materials should be used for the window frames and sashes? 

Timber is always the best option. Using bonded materials can cause problems over time, as they expand and contract at different rates, leading to poor draught sealing and other issues. Look for long-term guarantees that protect your purchase and ensure that the windows stay true to the original design and profiles. Cheaper materials, such as uPVC, may seem appealing on price, but they lack the reliability and longevity of timber. Other materials like metal or composite may attempt to mimic traditional designs, but they simply don’t match the overall quality and precision that timber provides. Some materials mean chunkier frames which reduce the amount of natural light entering the room and don’t add to property resale value.

What should I be looking for in terms of energy efficiency?

 When considering energy-efficient windows, look for the following key factors:

  • U-Value: Measures how effective a window is at preventing heat loss. Lower U-values indicate better insulation. Ensure the windows meet or exceed building regulations for U-values (Ayrton U-values are the equivalent of or better than 1.4).
  • Low-E glass: Opt for windows with low-emissivity (low-e) coatings that reflect heat back into the room, improving energy efficiency.
  • Double glazing: Adds layers of insulation to reduce heat transfer and enhance energy performance.
  • Gas fills: Check for argon or krypton gas between the panes, as these gases further improve insulation compared to air-filled windows.
  • Energy rating label: Look for windows with an energy rating label (eg. A+ or better), which considers the overall efficiency of the window.

And for the perfect finishing touch…

Shutters are versatile and always look smart. They’re ideal in city homes with street-facing windows because, as well as looking stylish from the inside, they also add a level of privacy and security from the outside world. Not only that, but shutters also offer an opportunity to showcase original features in a period property, for example, where there is a significant architrave you don’t want to hide behind curtains, or where you want to control the direction of light. “Half-height shutters are a great option for large windows when you want to maximise light but still maintain privacy,” says Nina Tileva, creative director at The Traditional Shutter Company London. “Café-style installation is the preferable option for front rooms, when you like to keep the passers-by at bay, but still have natural light coming through.”

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