Selecting the right rooflight is a balancing act between architectural style, functional needs, and budget. Whether you’re looking for a sleek, modern finish or a classic structural design, understanding the terminology—from “frameless” to “fixed”—is the first step in your renovation journey.
Frameless Skylights: The Invisible Edge
A frameless skylight is the pinnacle of modern minimalist design. Often referred to as “edge-to-edge” glazing, these units are designed so that the glass covers the entire top surface, leaving no visible metal border from the outside.
From the inside, the frame is typically concealed within the roof’s structural opening. This creates a seamless transition from your ceiling to the sky, offering an “infinity” view with zero visual obstruction. Without a raised frame “lip,” rainwater and debris can flow freely off the glass, helping to keep the unit cleaner for longer.
Fixed Roof Lights: Simple & Efficient
A fixed roof light is a unit designed to stay permanently closed. It is the most popular choice for extensions where the primary goal is to flood the space with natural light rather than provide extra airflow.
Because they are factory-sealed and have no moving parts, fixed roof lights offer some of the best U-values (insulation ratings) on the market. Without the need for bulky opening mechanisms or motors, fixed units provide a larger “clear-view” area, letting in more sun than an opening window of the same size.
Non-Opening Roof Windows: The Low-Maintenance Choice
The terms “fixed” and non-opening roof windows are often used interchangeably. These are the go-to solution for high ceilings or areas that are difficult to reach.
With no hinges to oil or motors to maintain, non-opening windows are practically maintenance-free once installed. Additionally, as there are no opening points, they offer a high level of natural security, making them an excellent choice for flat roof extensions that might be accessible from a lower level.
Skylight Prices: What to Expect
Pricing for rooflights depends largely on the size, glazing specification (double vs. triple glazed), and the design style. At CRL (Custom Rooflights), we pride ourselves on offering high-performance glazing at competitive prices.
| Product Type | Starting Price (Inc. VAT) | Best For |
| Triple Glazed Flat Frameless Rooflights | From £110.00 | High thermal efficiency & value |
| Framed Double Glazed | From £384.00 | Matching existing joinery |
| Roof Lanterns | From £790.00 | Large open-plan extensions |
Note: Prices are indicative of our current range and can vary based on bespoke sizing and additional features.
Ready to brighten your home?
At CRL (Custom Rooflights), we specialise in high-quality, high-performance glazing tailored to your project. Whether you’ve decided on a minimalist frameless look or a classic fixed roof window, we are here to help you make the right choice.
Browse our full product range here
