No builder wants a call a few months after completion to hear that a new extension is cold, uncomfortable, or vulnerable to break-ins. At Warmer Roof, we understand what matters most to trade professionals: products that are straightforward to install, perform exactly as promised, and don’t generate callbacks.

That’s why the S1 Roof Lantern by WarmerAluminium is designed as a true fit-and-forget solution—delivering long-term thermal performance, security, and clean aesthetics that reflect well on your work.

Built for Security, Designed for Peace of Mind

The S1 is engineered to be one of the most secure roof lanterns available in the UK. Unlike traditional lanterns that rely heavily on sealants and surface fixings, the S1 is built as a fully integrated system.

  • Anti-tamper fixings
  • Security tape as standard
  • Patent-pending glass lock system

Together, these features significantly reduce the risk of forced entry through the roof. For your client, that means confidence in their home. For you, it means fewer difficult conversations after handover.

Thermlock® Technology: Reliable Thermal Performance All Year Round

A common issue with roof lanterns is heat loss during colder months. The S1 addresses this with Thermlock® multi-chamber technology, designed to minimise thermal bridging and retain heat where it belongs—inside the property.

Installing the S1 isn’t just about adding daylight; it’s about delivering a high-performance roof solution that contributes to a comfortable living space throughout the year.

Slim, Refined Design

The S1 combines performance with a clean, architectural appearance. Its consistent 50mm sightline delivers a slim profile that suits both contemporary and traditional builds.

  • Low-line top caps that sit close to the glazing
  • Precision-engineered corner and rafter end caps for a seamless finish
  • No visible inconsistencies or awkward junctions

The result is a roof lantern that looks considered, premium, and professionally installed—enhancing the overall quality of your project.

Engineered for Installers

The S1 is manufactured under tightly controlled conditions to ensure consistent quality. Its carcass kits are designed to fit together accurately, reducing on-site adjustments and installation time.

That means:

  • Less time resolving fitting issues
  • Faster, more predictable installs
  • A smoother process from delivery to completion

A Smarter Choice for Your Next Project

Choosing the S1 Roof Lantern means delivering light, warmth, and security in one complete system. Your clients benefit from a comfortable, secure space—and your reputation benefits from a product that performs long after the job is finished.

Call us today to secure a Trade Quote and get started with a Warmer Roof S1 Roof Lantern by WarmerAluminium!

01373 473 900 (ext. 4 for Technical Team)