62% Heat Loss Reduction VS Leading Shutter
30% Average Reduction in Household Heating Prices
Lab Tested & Certified To Be Energy Efficient
The UK’s First & Only Certified Energy Efficient Window Shutter
Thermalite Ultra-Clear is a state-of-the-art shutter with category-defining thermal qualities. Our trade partners have experienced an average increase of 25% in retail conversion rates since introducing Thermalite to their range.
Category Defining Shutters, Engineered for the Future
Materials: High-Density Polyphane – cured, not melted – holds form in heat and cold. Does not bow, warp or twist like all other shutters.
Joints & Density: 1.1-1.2g/cm3 (wood and PVC shutters average between 0.25-0.75 g/cm3). Mortoise and tenon joints mean no midrails or splits – with heights up to 3m for bespoke shutters.
Mechanism: Patented and Exclusive Ultra-Clear® – a titanium rack and nylon pin mechanism for smooth and unified louvre movement.
Guarantee: 25-Year Transferrable – the longest guarantee in the market
Finish: Polyurethane UV Paint – engineered to retain colour and remain unaffected by sunlight. Anti-Scratch, Water Resistant and Fire Retardant.
Industry-Leading Thermal Qualities.
Extensive testing in Energy House has shown a 62% reduction in heat loss and an R-Value increase of 44% (compared to current industry-leading shutters). Meaning that households are guaranteed to experience up to a 30% reduction in heating bills.
Patented Ultra-Clear® Technology
Thermalite is the only shutter in the world with Ultra-Clear® technology. The precision-engineered titanium rack and nylon pin mechanism ensures that all slats move in unison smoothly – resisting wear, without loosening or stiffening over time.
Simple Installations. Zero Call-Outs.
25-Year Guarantee.
Thermalite shutters have been engineered for the installer and designed for lasting performance year after year. It is the only shutter in the industry that will not warp, bow or twist for at least 25 years.
Lab-tested.
Energy Certified.
Thermalite Ultra-Clear®’s performance figures are not a marketing strategy, but real-world scientific test results from Energy House.
A Lifetime Investment, not a Premium Purchase
Thermalite is not a luxury purchase, or an interior design set-piece, but a long-term investment which makes households energy-efficient year on year.
The Best Partnership Available in the Shutter Industry
Partnering with Thermalite Ultra-Clear guarantees a minimum 25% increase in conversions, but that’s not the only reason you should partner with us. We don’t only give you exclusive access to the category-defining shutter, we give you access to our 20 years of industry-dominating experience and infrastructure in the shutter market.
Elegant.
Efficient.
Everyday.
Lead Time from 4 Weeks
We have the industry’s best logistics and infrastructure in shutters. Thermalite Ultra-Clear® shutters start at a 4-week lead time.
Property-Market Ready
With EPC and efficiency regulations sweeping the property market by 2030, Thermalite Ultra-Clear® is the perfect solution for landlords, property agents and property developers.
Timeless Design
Crafted with a premium high-density polyphane and polyurethane UV-paint finish – Thermalite Ultra-Clear shutters look timeless, but are engineered for the future.
Certified for the Future
Comprehensive lab testing has proven that Thermalite Ultra-Clear® is the most sustainable shutter in the market.
See Thermalite Ultra-Clear® in action!
The Thermalite Ultra-Clear® Range
PRO
Maple Rails & Styles – Maple body (rails, styles and slats) with our exclusive Ultra-Clear® mechanism.
DUO
Thermalite Slats with a Maple Build – Get the best of both worlds, with a premium maple build and state-of-the-art Thermalite slats.
H2O
The 100% Thermalite shutter – 100% waterproof, zero water damage, warping or wear from condensation.
ThermaColour
The world’s first polyurethane UV-protective paint finish range engineered for shutters, exclusive to Thermalite Ultra-Clear®.
A range of 30 hand-selected and carefully curated heritage colours for your Thermalite Ultra-Clear® shutters. Not only are these colours perfect for every season and every home, but they also elevate the performance and longevity of your shutter.
Anti-Scratch
The polyurethane finish on our ThermaColour range ensures your shutter is immune to scratches and wear throughout daily use.
UV-Protected
ThermaColour is UV-Protected, meaning no discolouration even against prolonged exposure to sunlight.
Flame Retardant & Waterproof
ThermaColour is both flame-retardant and 100% waterproof.
Mulberry Depths
ThermaColour 2627
Midnight Moor
ThermaColour 2617
Golden Ochre
ThermaColour 2626
Harvest Fawn
ThemaColour 2607
The full range…
Contact us to see the full range.
“Thermalite Ultra-Clear® outperforms every shutter we’ve ever tested.”
Energy House is the UK’s go-to lab to test the energy efficiency of households and sustainable technology. The technicians who tested it stated that Thermalite Ultra-Clear outperforms any other shutter or blind that has been tested by the BBSA (the British Blinds & Shutters Association).
44% increase in R-Value compared to the leading shutter.
62% reduction in household heat loss
A calculated 30% reduction in household heating costs
“Since partnering with Thermalite, conversions and showroom visits have increased by 25%!“
Our partners in Yorkshire and the North East have witnessed showroom visits and conversion increases of up to 25% – Thermalite Ultra-Clear has been the “Easiest and fastest-selling shutter – ” introduced to the market.
2026 Shutter of Choice
Shutter Expo UK
“We can rest easy knowing our properties are EPC compliant thanks to Thermalite Ultra-Clear®.”
The government mandates that by 2028, all properties will need a minimum EPC rating of C to be legally let. This means that landlords, lettings agents and property developers alike will need cost-effective and long-term performing installations to improve their properties’ EPC rating. Thermalite Ultra-Clea® is the only shutter that has been precision-engineered to improve household energy efficiency year-on-year.
The 2030 Sustainability Innovation for UK Property & Trade Professionals
As the UK moves toward stricter EPC standards by 2030, energy efficiency is no longer optional; it’s a commercial priority. Thermalite Ultra-Clear® shutters offer a low-disruption, high-impact solution for landlords, homeowners, and developers looking to future-proof their properties.
Extensive Lab & Real World Testing
Favoured by UK Trade & Industry Professionals
Thermal Performance Certificate Included
1.
Trade Professionals
- Offer clients a next-generation, energy-focused upgrade
- Secure county exclusivity as a Thermalite partner
- Differentiate your business beyond traditional shutters and blinds
- Be the first to access a new revenue stream in the growing EPC retrofit market
Be a Thermalite shutters partner with a product that’s redefining window performance.
2.
Property Developers
- Deliver future-proof, sustainability-forward developments from day one
- Integrate high-performance window insulation without redesigning structures
- Enhance buyer appeal with built-in energy efficiency
- Reduce long-term maintenance through durable, composite materials
A simple specification upgrade that adds measurable performance and value.
3.
Landlords & Estate Agents
- Prepare portfolios for tightening EPC regulations ahead of 2030
- Reduce future renovation costs with low-disruption upgrades
- Improve tenant comfort and retention through warmer, more efficient homes
- Strengthen asset value and long-term lettability
Thermalite Ultra-Clear® offers one of the most cost-effective ways to improve EPC performance without major works.
4.
Aspiring Homeowners
- Cut heating costs by reducing 62% heat loss through windows
- Take advantage of a transferable 25-year guarantee that can improve the value of your property.
- Upgrade your home’s EPC rating without renovation disruption
- Combine insulation performance with a clean, premium aesthetic
Thermalite Ultra-Clear® not only improves the value of your property – homeowners can take advantage of an industry-defining 25-year transferable guarantee.
5.
Shutters & Blinds Showrooms
- Introduce a category-defining product your competitors don’t offer
- Increase average order value with performance-led upgrades
- Educate customers on energy savings, not just style
- Position your showroom at the forefront of modern window solutions
Pivot from a showroom to a destination.
6.
Interior Designers
- Specify shutters that combine aesthetics with real performance
- Solve common client issues like drafts, glare, and heat loss
- Deliver designs that look premium and perform long-term
- Align projects with sustainability and energy-efficiency trends
Functionality forward design.
Best-in-Class Logistics & Lead Times
Thermalite Ultra-Clear® fast tracks trade partners into a best-in-class, unbreakable supply chain and logistics. We offer a starting 4-week lead time, with 8-12 weeks for bespoke projects.
The World’s Only 25-Year Shutter Guarantee
Every system is backed by a 25-year transferrable product guarantee, delivering durability, consistency, and peace of mind for you and your customers.
Industry Leading Sales & Operations Support
Partners get exclusive one-to-one executive consultancy with the team at Thermalite Ultra-Clear®, an industry-leading group of experts who have experienced massive success in the trade and retail shutter market.
Plug In To A Scalable Growth Infrastructure
Partners take advantage of protected territories by county, a custom digital trade portal, CRM integration, and ready-made marketing assets. Thermalite Ultra-Clear ensures you scale quickly, and dominate your regional shutter market.
Become a Partner
Start your trade enquiry
Find Out More Today
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Frequently Asked Questions
What are your lead times?
Our standard lead time is 4 weeks. For more bespoke 1-of-1 Thermalite Ultra-Clear® projects, we have lead time estimates of 8-12 weeks.
Orders are produced through our European distribution hub and shipped directly to our trade partners, ensuring consistent delivery times and reliable supply for your installation schedule.
How much do Thermalite Ultra-Clear® shutters cost?
Pricing operates on a tiered trade structure based on monthly volume, with significantly better rates available for partners achieving higher order volumes.
For a tailored quote based on your expected volume, please contact us to discuss opening a trade account.
Where are Thermalite Ultra-Clear® shutters manufactured?
Precision components are manufactured in specialist facilities in China, then shipped to our European assembly and distribution hub in Germany.
Final systems are assembled and distributed from Germany to our trade partners across the UK and Europe, ensuring consistent quality control and reliable logistics.
Do you offer exclusive trade territories?
Yes.
To protect our partners’ investment in promoting the Thermalite Ultra-Clear® system, we offer county-level exclusivity for trade accounts achieving 100m² or more in monthly volume.
This ensures partners can grow their business without competing against other Thermalite distributors in their local market.
Are Thermalite Ultra-Clear shutters available in all standard shutter styles and shapes?
Yes.
Yes, Thermalite Ultra-Clear® shutters are available in all standard shutter styles, including Full Height, Tier-on-Tier, Café Style, Tracked, Sliding and more. They can also be custom-made to fit a wide range of window shapes, including arches, circles, angled windows and other bespoke designs.
Furthermore, you can commission bespoke shutter styles if you wish to speak to our team for a custom job.
Do you support partners with sales and marketing?
Absolutely.
As experienced shutter retailers ourselves, we support partners with sales training, marketing content, website assets, and optional CRM integration to help accelerate growth.
Our goal is not just to supply a product, but to help our partners sell more shutters successfully.