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Our replacement windows are A-Rated to comply with part 'L' of building regulations
Our replacement windows are A-Rated to comply
with part 'L' of building regulations
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Flat Window
Achieve comfortable temperatures in your home By installing our insulated Thermal Shutters, you can significantly enhance your home's energy efficiency, creating a more comfortable and sustainable living environment year-round. Experience the difference: stay cool during the summer months and warm in the winter, all while reducing your reliance on energy-intensive heating and cooling systems.
Other benefits include:
  • Cost savings Reduces expensive heating costs in the winter.
    Reduces the need for expensive electric and air-conditioning.
  • Noise reduction Reduce external noise, creating a quieter, more peaceful environment.
  • Lockable latches for security Blocks prying eyes and makes entry more difficult for burglars.
  • UV protection The reduction of UV rays protects carpets and furniture from fading.
  • Easy to maintain Our flat composite surface is easy to wipe down, unlike curtains or blinds.
  • Increased privacy Simply close your shutters for privacy. Ideal for night workers and babies.
  • Visual comfort Minimises glare and reflection, perfect for home offices and office spaces.
  • Designed for simple DIY install Install easily without the need for a fitter.
Excessive Heat or Cold Can Cost Lives
Protect loved ones with thermal shading.

Today, bedrooms in 15.7 million UK homes fail overheating criteria according to Arup/the Climate Change Committee.

The number of UK homes overheating in summer quadrupled to 80% over the past decade, according to a new study...read more

A clear correlation between excessive heat and cold can be seen with increases in excess mortalities. Year over year, as global temperatures become more extreme, the number of excess mortalities grows.

The need to protect against heat loss and heat gain is increasing year over year.

How our thermal shutters can help – We’ve got the stats to prove it!

Our thermally insulated shutters provide insulation against cold and heat, making them beneficial not just in winter, but also in summer, by keeping homes cooler and reducing the need for air conditioning.

Stats covering July - September:
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On the sunniest day:

Inside room with shutters: 29°C
Inside room without Shutters: 43°C
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Across all 3 months:

Average temperature in room with shutters: 25.2°C
Average temperature in room without shutters: 28.1°C
Why buy a Thermal Shutter?
With modern homes becoming increasingly well-insulated to conserve heat during the winter, it's easy to overlook the critical need for cooling in the summer. With global temperatures rising, homes are more likely to experience overheating during summer months. Alarmingly, studies predict that by the mid-2030s, a staggering 90% of existing homes will face overheating risks.

Introducing Dunster House Thermal Shutters!

Our innovative thermal shutters provide year-round comfort by addressing both heat loss in the winter and heat gain in the summer. Unlike standard shutters, they are designed with advanced insulation technology to improve energy efficiency in all seasons.

In summer, the shutters act as a barrier, reducing solar heat gain and keeping your home cooler by minimising the amount of heat that enters. In winter, they trap heat inside, preventing it from escaping through windows and helping you reduce energy costs.
Environmental Benefits
Our Thermal Shutters significantly reduce the need for air conditioning in the summer and artificial heating in the winter, helping to lower your energy consumption. This leads to a smaller carbon footprint, reduced harmful emissions, and a more sustainable home. By choosing our energy-efficient shutters, you're making a conscious decision to reduce your environmental impact.



Health Benefits
By minimising the circulation of dust, allergens, and pollutants typically spread by HVAC (Heating, Ventilation, and Air Conditioning) systems, our Thermal Shutters significantly improve indoor air quality. This creates a healthier living space with reduced exposure to irritants. Maintaining a comfortable indoor temperature with our Thermal Shutters also promotes relaxation and reduces stress, further boosting health and daily comfort.

Technical Specification
Our Thermal Shutters reduce the need for air conditioning in the summer and artificial heating in the winter, helping to lower your energy consumption. This leads to a smaller carbon footprint and reduced harmful emissions, making your home both more sustainable and energy efficient.

• Fully made to measure
• Shutters are made from composite panels (2x5mm) and PIR insulation (25mm)
• Shutter u-Value: approx. 0.9 (the lower the u-value, the better!)
• Maximum width 2600mm, maximum drop 2500mm
• Minimum width 504mm, minimum drop 450mm
• Strong, high-quality hinges
• Stainless steel latches providing additional security
• Timber frame included
• White surface area to deflect heat