Bring more natural light and ventilation into your home with professional skylight installation and replacement. EBT Build installs roof windows and rooflights for pitched and flat roofs, with careful attention to the roof structure, flashing, waterproofing and internal finish.
Whether you need a new skylight installation, skylight replacement or roof window installation, we assess your roof and recommend a suitable solution for your property.
Member of the National Federation of Roofing Contractors, the UK’s leading roofing trade body.
Government endorsed quality scheme for tradespeople working in and around the home.
Public & employer liability insurance in place for complete peace of mind.
Consistently rated for workmanship, reliability, and project management.
Delivering home refurbishment and roofing projects with controlled processes, certified trades, and accountable project management.
Every skylight installation is planned around your roof type, the position of the new unit and the condition of the surrounding roof area. We manage the key stages of preparation, fitting, flashing, weatherproofing and finishing to provide a properly integrated result.
From roof window installation to skylight replacement, we take care of the key fitting and weatherproofing details so the new unit is properly integrated with the roof and protected against water ingress. Where needed, professional roof cleaning can also help keep the surrounding roof area clear of moss, dirt and debris before installation.
We provide skylight installation and replacement for homes across North London, including pitched roofs, flat roofs and suitable roof extensions. From roof windows and fixed rooflights to skylight replacements, each installation is planned around the existing roof structure, glazing and weatherproofing requirements.
Our roofing work covers London and North London, including Islington, Camden, Hackney and Haringey.
We install roof windows on suitable pitched roofs to improve natural light and ventilation. Older properties can also benefit from our guide to Victorian terrace roof problems.
We install suitable skylights on flat roofs with proper flashing, upstands and weatherproofing. See our guide to flat roof and pitched roof systems for more information.
Roof lanterns provide additional natural light for suitable flat-roof extensions and larger rooms. They can also complement wider kitchen extension projects.
Sun tunnels bring natural light into smaller or enclosed spaces where a standard skylight may not be suitable. We install them while maintaining the surrounding roof’s weather protection.
We replace damaged or outdated skylights where the glazing, frame or flashing has deteriorated. Our roof repair guidance explains wider roof repair considerations.
We repair failed seals, damaged flashing and water ingress around existing skylights. Where moss or debris is affecting the surrounding area, professional roof cleaning may also be suitable.
A skylight needs to be properly integrated with the roof to provide lasting performance. At EBT Build, every skylight installation is treated as a roofing project first, correct flashing, correct upstand construction, and correct perimeter sealing are non-negotiable on every job. We focus on accurate fitting, suitable materials and careful finishing from the initial assessment through to completion. Our wider roofing services also cover the surrounding roof when additional work is required.
From traditional Victorian terraces to modern extensions and converted spaces, we work with a range of roof types and property layouts across North London. Each project is considered around the existing roof structure, available space and practical installation requirements.
We fit roof windows and skylights to pitched roofs on Victorian terraces, semi-detached homes and other residential properties. Our guide to Victorian terrace roof problems covers common roof considerations.
Suitable rooflights can bring more daylight into flat-roof extensions, kitchens and living spaces. Our kitchen extension guide covers wider extension planning.
Roof windows can improve daylight and ventilation within suitable loft conversions. Our loft conversion vs extension guide explains the main options.
We install suitable rooflights on single-storey extensions and orangery-style spaces, working around the existing roof structure and layout.
We work on suitable commercial buildings such as offices, retail units and other properties where roof glazing can improve natural daylight.
Roof windows and skylights can add daylight to suitable garage conversions and outbuildings. We assess the available roof space before installation.
We check the roof structure, covering, opening size and installation position before work begins.
Includes:
Roof inspection · Opening preparation · Installation planning
The unit is fitted securely with suitable flashing, sealing and weatherproofing around the roof junction.
Includes:
Skylight fitting · Flashing · Sealing · Weather protection
We complete the internal reveal and inspect the skylight, surrounding roof and weatherproofing before handover.
Includes:
Internal finishing · Final inspection · Weatherproofing checks
We visit your property in UK to assess the scope and requirements.
You receive transparent pricing and a clear timeline for your project.
All trades are coordinated and managed under one system.
Snagging is completed and the project is delivered to agreed standards.
EBT Build installs a full range of skylight types for both pitched and flat roofs across the UK. This includes fixed skylights, opening skylights, VELUX roof windows, flat roof domes, sun tunnels, and roof lanterns. The right skylight for your property depends on the roof type, pitch, and how much light and ventilation you need. During our free survey we assess the roof structure and recommend the most suitable unit for your specific situation. All installations are completed by our in-house roofing team with no subcontractors involved.
The cost of skylight installation in the UK typically ranges from £800 to £3,000 per unit depending on the type of skylight, the size of the opening, the roof type, and access requirements. A standard VELUX window on a pitched roof is generally at the lower end of that range. Flat roof skylights and roof lanterns tend to cost more due to the additional structural preparation and specialist flashing required. EBT Build provides fully itemised written quotes after a free site survey so you know exactly what you are paying for before any work begins.
A single skylight installation on a straightforward pitched roof can typically be completed in one day. Flat roof skylight installations or projects involving multiple units may take two to three days depending on the scope of preparation required. If structural work is needed to create or enlarge the roof opening, additional time will be required. EBT Build confirms all timelines in writing after the survey so you can plan accordingly. We work efficiently and keep disruption to a minimum throughout every project.
In most cases planning permission is not required for skylight installation in the UK as it falls under permitted development rights. However, there are exceptions. If your property is a listed building, sits within a conservation area, or if the skylight faces a highway, you may need to apply for planning permission before work can begin. EBT Build checks all relevant planning requirements during the survey phase and advises you on any permissions needed before a single tool comes out. We can also point you in the right direction if a formal application is required.
A properly installed skylight will not cause heat loss or drafts. Modern skylights are manufactured with double or triple glazing and thermally broken frames that meet current UK building regulations for energy efficiency. The key factor is installation quality — poor flashing, inadequate sealing, or incorrect fitting are the most common causes of drafts and heat loss around roof windows. EBT Build installs all skylights to manufacturer specification with full weatherproof sealing and flashing as standard. Where required we also recommend combining skylight installation with roof insulation upgrades for maximum thermal performance.
Skylight replacement is worth considering when the existing unit is more than 20 years old, showing persistent leaks that cannot be resolved through resealing, or when the glazing is single pane and causing significant heat loss. Condensation between glass panes is a clear sign that the sealed unit has failed and replacement is the only effective fix. Cracked or broken frames, warped seals, and difficulty opening or closing an operable skylight are also strong indicators that a full replacement will be more cost effective than ongoing repairs. EBT Build carries out a full condition assessment during the survey and gives an honest recommendation on whether repair or replacement is the right option for your property.
Reliable home refurbishment and roofing specialists delivering compliant, fully managed building work across the UK.
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