Rooflight Installation Cost London: What to Expect in 2025 for Glass Rooflights
If you’re thinking about adding a rooflight to your flat roof in London, one of your main questions will be: What is the rooflight installation cost London homeowners and businesses face today? Whether you’re upgrading your home or working on a commercial project, understanding the full costs is key to planning your budget.
A rooflight is a great way to bring natural light into a space and improve its look and energy efficiency. But installation costs can vary widely depending on many factors, including size, glazing type, frame style, and even extra services like crane hire or glass vacuum lifting. Here’s a clear guide to help you get a grip on costs in 2025, straight from a trusted London rooflight company.
Key Factors Affecting Rooflight Installation Cost London
Every flat roof project is unique, but these are the main elements that will impact your price:
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Rooflight size and glazing type: Larger rooflights or triple glazing cost more. Double glazing with solar control can be a good mid-range option.
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Frame style: Framed rooflights usually cost less than frameless or structural overhead glazing.
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Opening mechanism: Manual rooflights are cheaper than motorised electric ones.
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Roof access and structure: Flat roofs with difficult access or complex structural work will raise installation costs.
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Labour and specialist equipment: Labour costs in London tend to be higher than other UK regions. Also, if your rooflight is large or heavy, hiring a crane or glass vacuum lift is often necessary.
Crane Cost and Glass Vacuum Hire Costs
One of the less obvious but significant expenses is crane hire cost. Cranes are needed to lift large rooflight units safely onto flat roofs, especially in London where buildings are close together, and access can be tight. Typical crane hire costs range from £500 to £1,000 per day, depending on the size of the crane and duration of the hire.
Another important consideration is the cost of a glass vacuum lift hire. This specialised equipment uses suction pads to safely lift and place large glass panels, including rooflights, without damage. Hiring a glass vacuum lift adds safety and efficiency to the project but can add another £200 to £500 per day to your budget.
Typical Rooflight Cost Breakdown (2025)
| Rooflight Size | Glazing Type | Frame Style | Estimated Rooflight Cost (ex VAT) |
|---|---|---|---|
| 1000x1500mm | Double | uPVC | £800–£1,100 |
| 1500x2500mm | Triple | Aluminium | £3,000–£4,200 |
| 2000x3000mm | Triple | Frameless | £5,500–£8,000 |
Installation labour, roof modifications, and finishing can add another £1,500 to £3,500 depending on project complexity.
Why Choose a Specialist Rooflight Company in London?
London’s unique building landscape means working with a specialist rooflight company that understands local regulations and challenges is critical. A trusted company will help you choose the right type of glazing and frame style for your flat roof, including options like overhead glazing that maximise natural light.
They’ll also organise any necessary equipment hire — like cranes and glass vacuum lifts — and coordinate with building control for compliance. This ensures your rooflight installation goes smoothly and safely.
Tips to Keep Your Rooflight Installation Cost Down
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Plan ahead for access: Avoid last-minute crane hire by arranging early and choosing rooflights sized for easier installation.
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Stick to standard sizes: Bespoke rooflights can increase costs substantially.
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Consider manual opening: Motorised rooflights add complexity and price.
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Choose durable glazing: Double glazing with solar control balances cost and performance, reducing future maintenance.
Final Thoughts on Rooflight Installation Cost London
In 2025, installing a rooflight on a flat roof in London typically costs between £2,000 and £10,000+. The wide range depends on the size, glazing, frame, and additional factors like crane cost and glass vacuum hire costs.
Working with an experienced rooflight company will ensure you get the best solution tailored to your space and budget. Plus, they will manage all the technical details, keeping your project safe and compliant with building regulations.
If you want bright, airy spaces with the latest overhead glazing, knowing these costs upfront will help you make informed decisions. Always choose companies registered with FENSA or TrustMark to guarantee quality and peace of mind.
