Velux and roof window installation, repair and replacement across Leicester. Whether you need a new roof light on a loft conversion, a replacement unit on an aging installation, or a leaking window flashed properly, we supply and fit the full range.
Covering Leicester and all of Leicestershire.
Leicester has a large and growing stock of loft conversions — the 1930s semis across Oadby, West Knighton and Evington are particularly popular candidates, as the roof pitch and rafter spacing suit standard Velux installations well. We fit GGL (centre-pivot) and GGU (top-hung) units in all standard sizes, and can advise on the correct specification for your roof pitch and rafter spacing.
Leaking Velux windows are one of the most common call-outs we receive across Leicester. In most cases the cause is not the unit itself but the flashing kit — either incorrectly installed originally, or the EDW insulating underlay has perished around the frame. We diagnose and re-flash or replace as appropriate. A correctly flashed Velux unit should be completely watertight for 20+ years.
New installations on loft conversions and flat-to-pitched conversions. Single unit replacements on existing openings. Flashing kit replacement and re-sealing. Electric and solar-powered units. Sun tunnel installations for internal rooms without direct roof access.
Supply and fit of a standard Velux GGL centre-pivot unit in Leicester typically costs £450–£750 depending on size. Re-flashing a leaking Velux runs £200–£400. Full loft conversion window packages (2–4 units) cost £1,200–£3,000
"Two Velux units on our Oadby loft conversion were leaking every winter. Re-flashed both with new EDW kits. No leaks at all this winter. Should have done it years ago."
"New Velux installation on our West Knighton 1930s semi loft conversion. Two FK06 units, tiled in perfectly, no light gaps, no leaks. Very clean job."
"Old Velux on our Highfields terrace had been problematic since we bought the house. These guys replaced the whole unit and flashing kit in half a day. Completely watertight."
A standard Velux GGL centre-pivot unit supply and fit in Leicester costs £450-£750 depending on size. Larger roof windows or electric units cost more. We provide free written quotes for all installations.
In most cases a leaking Velux is caused by a failed or incorrectly installed flashing kit rather than the window unit itself. We diagnose the exact cause on a free site visit - re-flashing typically costs £200-£400 and permanently resolves the leak.
Yes. We replace existing Velux and other branded roof windows across Leicester. If the opening size is standard, replacement is straightforward. Non-standard openings may need tile adjustment around the new unit.
Most 1930s semis in Leicester have rafter spacings of 400-450mm, which suit standard Velux FK06 (66x118cm) or SK06 (114x118cm) units. We measure on-site before ordering to confirm the right specification for your specific roof.
Yes. We supply and fit Velux INTEGRA solar-powered roof windows across Leicester. These open and close automatically and can be operated via remote or integrated with smart home systems. No electrical connection required — the solar panel on the frame charges an internal battery.
Yes. Velux sun tunnels (TFS/TWF series) are a good solution for bathrooms, hallways and landing areas without direct roof access. We install both rigid and flexible tunnel versions across Leicester. A sun tunnel installation typically takes half a day and requires no planning permission.
Velux window sizing depends on your rafter spacing and the rough opening size available. Standard sizes from FK04 (66x98cm) to SK10 (114x160cm) cover most domestic applications. We measure on-site before ordering and confirm the correct size — ordering the wrong size is a costly mistake we prevent with a survey visit before any materials are specified.
Installing a Velux in an existing roof slope is generally permitted development — no planning application required. However, if the loft is being converted to habitable space at the same time, Building Regulations approval is required for the overall conversion (fire escape, insulation, structural calculations). We advise on any planning or Building Regulations implications as part of our free survey — we carry out Velux installations regularly across Leicester including on loft conversions.
Velux and roof window installations are most straightforward on properties with a roof pitch between 15° and 75° and rafter spacings of 400mm or 600mm centres — which describes the majority of Leicester's 1930s and post-war semi-detached housing stock. The 1930s semis across Oadby, West Knighton and Evington typically have pitches of 40–45° and rafter spacings of 400–450mm, making them well-suited to standard Velux FK or SK series units without structural modification.
Victorian terrace conversions present more variation. Some terraces in Highfields and Belgrave have roof pitches of 50–60° and rafter spacings that don't align with standard unit widths, requiring either bespoke sizing or structural rafter modification to create a suitable opening. We survey rafter spacing and pitch on-site before specifying any unit, and confirm the exact size before ordering materials.
Correct Velux installation has three critical elements that are frequently done incorrectly: the rough opening size, the flashing kit specification, and the internal lining. The rough opening must be exact — too small and the frame binds, too large and the flashing cannot close correctly. The flashing kit must be specified to match the tile profile — Velux produce different flashing kits for plain tile, interlocking tile, slate and other profiles; the wrong kit on the wrong tile creates gaps that allow water ingress even when the unit itself is perfectly installed. The internal lining (the plasterboard reveal around the window) affects both thermal performance and the risk of condensation on the frame.
Most of the leaking Velux calls we attend in Leicester are caused by incorrect flashing specification rather than unit failure. Re-flashing with the correct kit profile resolves the problem permanently. We always confirm the tile profile of the roof before ordering any flashing kit.
Velux INTEGRA solar-powered units are increasingly popular on Leicester loft conversions. The solar panel on the top of the frame charges an internal battery and powers the motor — no electrical connection to the house wiring is required. This makes installation significantly simpler and cheaper than hard-wired electric units, with no electrician required and no chasing of wiring through the loft structure.
Solar units perform well in Leicester's climate despite the often-overcast conditions — the panel charges from daylight rather than direct sunlight, and a fully charged battery provides many hours of operation. We install Velux INTEGRA across Leicester as a standard offering on loft conversion projects.
The cost of Velux installation in Leicester varies with three factors: the unit itself (size, specification, manual vs solar), the flashing kit (which must match the tile profile and adds to materials cost), and the internal lining (the plasterboard and plaster reveal around the unit inside the loft). All three elements should be specified in a written quote before any work starts.
| Job Type | Typical Cost | Notes |
|---|---|---|
| Manual GGL supply & fit | £450–£750 | Standard size, roof only |
| Solar INTEGRA supply & fit | £900–£1,400 | No electrical connection needed |
| Re-flash leaking unit | £200–£400 | Correct flashing kit installed |
| Internal lining (additional) | £150–£350 | Plasterboard & plaster reveal |
No call-out fees. No obligation. Local Leicester roofers.
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