THERMSLIDE PLUS SLIDING DOORS
Our Thermslide Plus sliding doors combine ultra-slim aluminium sightlines with exceptional thermal performance – delivering the perfect balance of style, strength, and precision engineering.
These high-performance sliding doors are ideal for exterior spaces such as patios and garden rooms, and are designed to complement our minimalist aluminium rooflight range. With outstanding build quality, effortless glide operation, and a market-leading 10-year guarantee, Thermslide Plus offers performance you can trust.
Slim aluminium frames maximise natural light and create an uninterrupted connection between your home and the outdoors.
If you’re planning a project featuring sliding doors and rooflights, contact us today to learn more about our multi-buy discounts – or complete the form below for a quick, personalised quote.
Fully aluminium, thermally broken frame
Quick and easy to install
Easy clean glass as standard
We manufacture and supply our premium aluminium sliding doors and rooflights directly to homeowners and installers — and we’ve been doing so since 2001. With over two decades of experience serving British homes, we take pride in delivering exceptional quality and service at every stage of production and supply.
Buying direct from the manufacturer means you get the highest specification products, the longest warranties, and expert technical advice — along with reliable post-sale support. Our insulated glass units are made in our Leicester factory, and all deliveries are handled by our own transport fleet.
This level of care gives you complete peace of mind when investing in a project like Thermslide Plus aluminium sliding doors. To find out more, keep reading or use the quote form below to get started today.
Product Overview
Our Thermslide Plus® aluminium sliding doors feature Roof Maker’s very own high-performance Reflex® glass units, tested to BS EN1279 Parts 2 & 3.
Manufactured in the UK, we work closely with approved installers to ensure a perfect fit. Please talk to our team of experts for more information.
Bespoke aluminium sliding doors – choose your panel configuration and opening direction to suit your space and design.
High performance Reflex® glass units, combined with a thermally broken aluminium profile for outstanding insulation to help reduce heat loss and energy costs.
Upgrade to subtle blue-tint or laminated glass for enhanced UV protection of furniture and fabrics, as well as improved safety and security.
Premium aluminium finished with a marine-grade powder coating for optimum durability, matching the quality of our rooflight range.
2200 mm maximum pane width / 2400 mm maximum pane height for impressive uninterrupted views.
Exact door configuration is confirmed during the order confirmation stage and does not affect the price.
Key Features
Marine-grade powder-coated and fully thermally broken aluminium frame for long-lasting durability.
U-values as low as 0.78 W/m²K for outstanding energy efficiency.
Slim 29 mm sightlines and bespoke configurations of up to 6 sliding panels for panoramic glass walls.
Air permeability: Class 4 – ensuring excellent airtightness.
Water tightness: Class 9A – protecting against even the heaviest rainfall.
Wind resistance: Class A3 – engineered for strength and stability in exposed locations.
Security tested to PAS 24 – providing peace of mind for safety and protection.
Frequently Asked Questions
► Are sliding doors worth it for my patio or garden?
Absolutely. Thermslide Plus aluminium sliding doors are a stylish and practical way to transform your home. Their ultra-slim frames maximise natural light, improve airflow, and create a seamless connection between your indoor and outdoor spaces. Built from robust, thermally efficient aluminium, these doors are a smart, long-term investment for any modern home.
► What is the difference between sliding doors and bifold doors?
While bifold doors fold and stack to one side, sliding doors operate by gliding smoothly along a track — one panel sliding behind another. The result is a cleaner, uninterrupted view with slimmer sightlines and larger glass areas. Our Thermslide Plus system delivers a minimalist aesthetic with effortless operation and exceptional energy performance.
► Do sliding doors add value to your property?
Yes. High-quality aluminium sliding doors not only flood your home with light but also enhance its architectural appeal. The sleek, modern design and connection to outdoor spaces make Thermslide Plus doors a desirable feature that can add both visual impact and real value to your property.
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THERMSLIDE PLUS SLIDING DOORS
Our Thermslide Plus sliding doors combine ultra-slim aluminium sightlines with exceptional thermal performance – delivering the perfect balance of style, strength, and precision engineering.
These high-performance sliding doors are ideal for exterior spaces such as patios and garden rooms, and are designed to complement our minimalist aluminium rooflight range. With outstanding build quality, effortless glide operation, and a market-leading 10-year guarantee, Thermslide Plus offers performance you can trust.
Slim aluminium frames maximise natural light and create an uninterrupted connection between your home and the outdoors.
If you’re planning a project featuring sliding doors and rooflights, contact us today to learn more about our multi-buy discounts – or complete the form below for a quick, personalised quote.
Fully aluminium, thermally broken frame
Quick and easy to install
Easy clean glass as standard