Available in a wide range of standard sizes to suit all projects.
High-performance double glazing ensures excellent thermal efficiency.
Innovative ventilation system enhances airflow and improves indoor air quality.
Available in classic black with a crisp white or a natural pine internal finish.

Conservation
& Heritage Roofs

The HeritageLight™ conservation roof window features a black vertical glazing bar and slim external profiles, allowing it to blend seamlessly with period architecture and traditional roof designs.

It complies with conservation regulations, making it the ideal choice for listed buildings, properties in conservation areas, and heritage-style homes.

Combining authentic aesthetics with modern performance, it offers the perfect balance of style and functionality.

Superior Glazing
& Thermal Efficiency

Our conservation roof windows are manufactured with high-performance double glazing, ensuring optimal energy efficiency and comfort.

  • U-value of 1.4 W/m²K for excellent insulation
  • 24mm double-glazed unit with argon gas-filled cavity
  • Low-E coating reflects heat in summer and retains warmth in winter
  • Toughened outer glass pane for increased durability and safety

By allowing up to 10% more natural daylight than some other branded windows, HeritageLight™ ensures brighter interiors while maintaining the historic charm of your building.

Sustainable
Quality Materials

Crafted from FSC-certified pine wood sourced from sustainable forests, the HeritageLight™ conservation rooflight offers a durable, eco-friendly solution.

Combining responsibly sourced timber with high-quality craftsmanship, it delivers long-lasting performance and a robust construction you can rely on.

Range of
Standard Sizes

Summit HeritageLight roof windows are available in a variety of popular sizes, making them ideal for conservation and refurbishment projects. Whether you’re matching an existing opening or planning a new installation, there’s a size to suit:

  • 55cm (W) x 78cm (H)

  • 55cm (W) x 98cm (H)

  • 66cm (W) x 118cm (H)

  • 78cm (W) x 98cm (H)

  • 78cm (W) x 118cm (H)

  • 78cm (W) x 140cm (H)

Each rooflight is designed for energy efficiency and heritage styling, offering a perfect blend of modern performance and traditional appearance.

Flashing Kits
For Every Roof Type

Summit HeritageLight roof windows are available in a variety of popular sizes, making them ideal for conservation and refurbishment projects.

To ensure a secure and weather-tight installation, Summit HeritageLight flashings are available in four types to suit a range of roofing materials:

Tile Flashing: For profiled tiles between 16–50mm thick

Slate Flashing: For slates up to 16mm thick

Plain Tile Flashing: For flat, plain tiles up to 14mm thick

Universal Tile Flashing: Compatible with tile types between 16–120mm thick

All flashings are suitable for roof pitches from 15–90°, apart from the Plain Tile, which requires a minimum pitch of 25°. Designed for ease of installation and long-term performance, these flashings ensure your roof window fits and functions exactly as it should.

We needed a conservation rooflight that met heritage regulations without compromising on quality or looks. The Summit HeritageLight ticked every box.

Cost effective, easy to install, and a perfect match for our period property. Couldn’t be happier with the result.

Sarah
Homeowner, Oxfordshire

Ventilated
User-Friendly Design

The HeritageLight™ roof window features an innovative ventilation system that enhances airflow and improves indoor air quality.

An elegant handle with three locking positions enables passive ventilation, while a built-in ventilation valve allows fresh air to circulate even when the window is closed.

Designed for ease of use, it offers smooth, effortless operation for everyday comfort.

Simple
Installation

Whether you’re a DIY enthusiast or a professional installer, the HeritageLight™ conservation roof window is simple to install. Each unit includes a step-by-step installation guide, ensuring a straightforward fitting process.

  • Easy to install, even for DIY projects
  • Trusted by professional installers
  • Supplied with clear, easy-to-follow instructions
Frequently asked questions
What is a HeritageLight conservation rooflight?

HeritageLight is Summit’s traditional-style conservation rooflight, designed specifically for period properties, listed buildings, and sensitive restoration projects. It combines classic aesthetics with modern performance to meet both planning and practical needs.

Are HeritageLight rooflights suitable for listed buildings and conservation areas?

Yes! HeritageLight heritage rooflights are designed to replicate the appearance of traditional Victorian and Edwardian skylights. Their slim profiles, flush external fit, and understated frames make them ideal for projects where planning consent or conservation approval is needed.

What design features make HeritageLight skylights suitable for heritage projects?

HeritageLight conservation skylights feature:

Slim, low-profile frames
Minimal visible glazing bars
Authentic putty-line external detailing
Flush-fitting installation to maintain the original roofline These design details help HeritageLight blend seamlessly into period and traditional buildings.

What materials are used in HeritageLight conservation skylights?

HeritageLight rooflights are manufactured using quality aluminium frames for strength and durability, combined with timber liners internally for a warm, authentic finish. Modern glazing ensures excellent thermal insulation while preserving a traditional appearance.

What sizes are available for HeritageLight heritage rooflights?

HeritageLight conservation rooflights are available in a wide range of standard sizes to suit most projects.

Can HeritageLight conservation skylights be double glazed?

Yes! Although HeritageLight skylights maintain a traditional external appearance, they feature modern double-glazed units for improved thermal efficiency, noise reduction, and comfort — meeting today’s Building Regulations without compromising on style.

Do HeritageLight heritage skylights meet modern energy efficiency standards?

Absolutely. HeritageLight conservation skylights use high-performance glazing, warm-edge spacers, and thermally broken frames to deliver excellent energy efficiency, helping to reduce heat loss while maintaining the integrity of period buildings.

What warranty do HeritageLight conservation rooflights come with?

All HeritageLight heritage skylights are backed by a comprehensive 10-year warranty covering the frame, glazing, and seals, giving you full confidence in their long-term performance.