Roof Lanterns in Southeast England

A roof lantern is a glazed structure installed on a flat roof to create a striking architectural feature. It floods your room with natural daylight, improves ventilation when fitted with opening vents, and enhances the overall look of extensions, kitchens, or living areas.

Roof lanterns deliver more natural light, a greater sense of space, improved energy efficiency and modern style. They can transform darker rooms into bright, welcoming spaces while adding kerb appeal and value to your property.

Yes — our roof lanterns are designed with thermally broken aluminium frames, low-E glazing and warm-edge spacers. They achieve excellent U-values, helping to reduce heat loss in winter while preventing overheating in summer.

In most cases, roof lanterns are classed as permitted development and do not require planning permission, provided they meet certain height and placement limits. Exceptions include listed buildings and conservation areas. We’ll confirm requirements during your survey.

Our roof lanterns are manufactured from slimline aluminium frames and high-performance glazing. Aluminium is strong, lightweight, low-maintenance and allows for minimal sightlines with maximum glass area for uninterrupted views of the sky.

Yes — roof lanterns can be specified in different sizes, frame colours, glazing types and opening options. Dual-colour finishes are also available, letting you match your interior décor and exterior roofline design perfectly.

Costs vary depending on size, glazing specification, frame finish and installation requirements. Aluminium roof lanterns are typically more premium than uPVC options. We provide free, itemised quotes and offer finance options (subject to status).

Most roof lantern installations take around 1–2 days, depending on roof size and structural work required. We’ll confirm exact timescales during your quotation and ensure minimal disruption during installation.

Yes — aluminium roof lanterns are low-maintenance and only need occasional cleaning with mild soapy water. The glazing is designed to stay clear, and some options include self-cleaning glass for added convenience.

Yes — roof lanterns are considered a desirable feature that can increase a property’s value, appeal and marketability. By improving natural light, energy efficiency and style, they make homes more attractive to future buyers.

All roof lantern installations include a 10-year insurance-backed guarantee, plus manufacturer warranties on frames, glazing and hardware. Installations are also FENSA-registered where applicable, ensuring compliance with Building Regulations.

We install roof lanterns across Hampshire, West Sussex, East Sussex, Surrey, Berkshire and parts of Kent & Greater London. Visit our Areas We Cover page or Request a Quote to check service availability in your location.

Call 0800 368 9166, message us on WhatsApp 07932 960284, email sales@instantwindowsanddoors.co.uk or complete the Request a Quote form. We’ll arrange a free survey and provide tailored advice for your property.