Window flat roof

Expert Solutions for Your Window Flat Roof in Brighton and Hove

Adding a window to a horizontal roof surface is a fantastic way to bring natural light into extensions, dark hallways, or kitchens. However, over my 18 years as a roofer, including 12 years specifically serving the Brighton and Hove area, I have found that these installations are often the first place where problems develop. Whether it is a leaking skylight or a rooflight that has lost its thermal efficiency, these issues can quickly lead to structural damage and uncomfortable living conditions.

The Difference Between a Leak and Condensation

Many property owners in Sussex call me because they see dampness around their glazing and assume there is a structural failure. While a puncture in the membrane or failing flashing is a common cause, the issue is often related to poor insulation. When installing a high-quality skylight, it is crucial to avoid creating a ‘cold bridge’. This is where the warm, moist air inside your home meets the cold surface of the window frame, causing water to bead and drip down the walls.

This moisture can lead to mould growth and timber rot, even if the external surface is technically watertight. If you are experiencing water ingress during heavy coastal rain, it is vital to act quickly. I offer a professional emergency inspection to help you determine if the problem is a structural failure or a thermal insulation issue.

Professional Installation and High-Performance Upgrades

When I install or replace a window on a horizontal roof, my focus is on the integrity of the seal and the thermal performance of the unit. Modern high-performance roof windows are designed to withstand the harsh Sussex winds and salt air. I ensure that the upstand (the kerb the window sits on) is correctly insulated and seamlessly integrated with the surrounding modern waterproofing solution.

By using modern SBS-modified torch-on felt, I can create a durable, multi-layered waterproof barrier around the window frame. This prevents the common ‘peeling’ effect seen with older, cheaper installations. Replacing an old, draughty window not only stops the damp but also significantly improves the energy efficiency of your home, keeping your rooms warmer in the winter and cooler in the summer.

Why Choose a Specialist Roofer for Your Window Project?

A specialized installation requires a precise touch. Unlike a standard window in a wall, a rooflight must handle standing water, snow loads, and direct UV exposure. I personally manage every project, ensuring that the flashing is tucked correctly and that the drainage around the unit is clear. My approach is based on transparency; I don’t believe in hidden extras or vague quotes.

Get an Instant Price for Your Project

If you are worried about your current glazing or are planning a new installation in Brighton, Hove, or Worthing, I invite you to use my website’s unique feature. You can get an instant, no-obligation price estimate using my online calculator in about 30 seconds. Following that, I can visit your property to provide a fixed-price quote and set you up with a personal client portal where you can track the progress of your project, from the initial survey to the final warranty documents.