Velux installation and repairs across Oxford. Conservation range for protected areas, standard and premium for all other properties. Correctly flashed, guaranteed, free surveys.
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Quick answer: Velux and roof window services in Oxford cover flashing kit replacement from £350, glass replacement from £400, and new installations from £800. Most leaks are flashing kit failure, not the window. NFRC registered, fully insured, 10-year guarantee. Free survey. Call 0186 580 3181.
Roof window installation in Oxford requires more care than in most UK cities because of the high proportion of period housing in conservation areas and the specific planning considerations that come with it. Standard Velux GGL windows are suitable for the majority of Oxford’s post-war and modern housing, but on the Victorian and Edwardian properties of Jericho, North Oxford, Headington, and the streets around the University, the standard frame profile is visually intrusive and may be refused at planning. The Velux Conservation range — recessed-fit windows with slim frames and period-appropriate finishes — resolves this, and we specify it by default on any property in or adjacent to an Oxford conservation area.
The flashing detail is where most Velux installations fail over time. An incorrectly fitted EDL flashing kit around a roof window leaves a gap at the head or side junctions that allows water to track into the roof void during driving rain. Oxford’s persistent wet weather — wetter than the national average due to the valley location — means that even a minor flashing imperfection shows up faster here than in drier climates. We install all flashings to the Velux specification and BS 8000 standard, and all our installations are covered by our 10-year guarantee.
Velux costs in Oxford: Single window installation £650–£1,100 · Conservation range window £900–£1,500 · Flashing repair (existing Velux) £200–£450 · Two windows same visit from £1,100. Free written survey. Call 0186 580 3181.
Velux and roof window leaks are among the most frequently misdiagnosed roofing problems across Oxford. The tile surrounding the window is intact and dry. The window itself appears undamaged. Yet water is entering the building around the window frame after heavy rain. In the vast majority of cases we attend across Oxford, the cause is not the tile and not the window — it is the flashing kit between the two that has degraded after 15–25 years of service. Replacing the flashing kit resolves the leak without touching the window or the surrounding tile.
The flashing kit sits between the window frame and the surrounding tiles, creating the weatherproof seal at the junction. It consists of a upstand frame over the tiles, lead or aluminium cover flashings, and rubber seals at the critical junctions. After 15–25 years, the rubber seals degrade, the aluminium corrodes at joint positions, or the lead flashing separates from the upstand frame. Each failure mode admits water in a characteristic pattern — diagnosis of the specific failure narrows the repair scope precisely.
Velux windows on front roof slopes in Oxford's conservation areas require prior notification and may require conservation-approved slim-profile units. Rear slope installations on most Oxford properties are permitted development without notification. We check planning requirements for every survey address and specify the correct unit type before any order is placed.
New Velux installations are typically part of a loft conversion or extension project. The window position relative to the roof structure, the correct tile pitch for the window model, the flashing kit specification for the tile type, and the planning position for the property — we assess all of these at the survey stage. A Velux window installed without the correct flashing kit specification for the existing tile profile is a future leak in waiting.
The clay plain tiles on Oxford's Victorian and Edwardian properties require specific flashing kit profiles — the deep lap of clay plain tile is different from the profile of concrete interlocking tile, and a standard concrete tile flashing kit will not seal correctly on a clay plain tile roof. We specify the correct flashing kit for the tile type on every Oxford installation and repair.
We cover Oxford city and all surrounding Oxfordshire towns. Select your area for location-specific information, local pricing and a free survey.
We install and repair Velux, FAKRO, RoofLITE and Keylite roof windows across Oxford. Each brand has specific flashing kit profiles for different tile types — a Velux installation on a clay plain tile Oxford roof requires a different flashing kit from the same window on a concrete interlocking tile property. We carry flashing kits for all major window brands and the principal tile types found across Oxford's housing stock. For conservation area properties in North Oxford or Jericho where front-slope window installations require conservation officer assessment, we advise on the approved slim-profile units before any order is placed.
Related: Roof Repairs Oxford · Slate Roofing Oxford · Planning Permission Guide
Most Oxford roof problems announce themselves indoors before they are visible outside — a damp patch, a dripping loft, or debris in the gutter. The question is whether it is a contained repair or the first sign of a covering at the end of its life.
When it is not the answer: If more than about a third of the covering has slipped or the whole roof lifts tile-by-tile from nail sickness, repairing piece-by-piece is money wasted — re-roofing is the better long-term value. Read the full guide.
We inspect the roof and the loft to find the true source — water often tracks metres from the entry point on Oxford's older long-rafter roofs. No call-out fee.
You get a fixed-price written quote naming the materials and the exact scope, with scaffold or access itemised, not a vague verbal figure.
Scheduled repairs are usually booked within 5–10 working days; active leaks are prioritised for same-day make-safe.
We carry out the repair with matched materials where conservation compliance requires it, and protect the area below.
We clear all debris, water-test where relevant, and hand over the written 10-year workmanship guarantee.
| Job | Typical duration |
|---|---|
| Slipped or cracked tile replacement | 1–2 hours |
| Ridge re-bed or repoint (per run) | Half a day to 1 day |
| Lead flashing repair (one junction) | Half a day |
| Rear valley rebuild | 2–3 days |
| Full chimney re-lead | 1–2 days |
Wet or high-wind days pause tiling and leadwork — we build weather margin into every Oxford booking and make the roof safe at the end of each day.
Most Oxford repairs run from towers or roof ladders; scaffold is quoted only where the job needs safe standing time at height. Scaffold is specified for: chimney-side repairs, full valley rebuilds, and anything beyond a day working at height - always itemised in your written quote, never a hidden extra, and we arrange it.
Central Oxford's medieval street core and the tight Victorian terraces of Jericho and off the Cowley Road mean rear-access scaffold and permit-controlled pavement space are the norm on many jobs. Pavement scaffold and skip permits go through Oxford City Council; allow a few working days on streets like Holywell Street, Ship Street, St Michael's Street, Merton Street where space is tight.
| Job | Typical range | Notes |
|---|---|---|
| Slipped or cracked tile refix | £150–£280 | Per visit incl. access |
| Ridge re-bed / repoint (per m) | £60–£110 | Lime mortar on period stacks |
| Lead flashing repair (one junction) | £280–£550 | Code 4–5 lead |
| Rear valley rebuild | £550–£1,200 | Depends on length & access |
| Chimney re-lead | £450–£900 | Per stack |
Worked example: A rear valley rebuild on a 1930s semi in Summertown, including tower access and waste removal, typically runs around £680.
No deposit on repairs under £500. Staged payments on larger jobs — nothing up front before materials are on site. VAT included in every written quote.
Covering OX1, OX2, OX3, OX4 and surrounding postcodes.
Workmanship on the repaired section is covered for 10 years in writing; any replacement tiles, slates or lead carry their manufacturer warranties on top.
If a fault appears in covered work, we come back and put it right. No quibbling, no re-charge.
A day of ladder or tower work and a small amount of tile debris — we sheet below the work area and clear everything before we leave. You do not need to stay home for external work - we just need power and access agreed in advance.
Repairs run year-round; temporary weatherproofing goes on the same day if rain stops work mid-job. The Thames and Cherwell valley setting keeps ambient humidity high, so drying times for mortar, GRP and biocide run longer here than on the surrounding higher ground.
“Two Velux windows installed in our converted loft in Headington. Flashings done properly — they talked through the installation spec before starting and the result is completely watertight. Light transformation in what was a dark space.”
“Leaking Velux on our North Oxford property — it had been dripping for two winters. Previous roofer had applied sealant around the frame, which just masked it temporarily. These traced the issue to the side flashing and replaced it properly. Dry since.”
“Conservation Velux installation in our Jericho Victorian terrace rear extension — needed the heritage product for the conservation area. They knew the range, specified the right product, submitted what was needed to the council and the installation is flawless.”
A single Velux roof window installation in Oxford typically costs £600–£1,200 including all flashings, roof opening, internal lining and decoration. Conservation area or heritage specification Velux windows (for listed building-adjacent properties) cost more due to the specific product line required. All installations are quoted free in writing after a survey.
Yes, but the product specification matters. Standard Velux windows are generally not appropriate in many Oxford conservation areas. Velux's Conservation range, with flush-fitting profiles and period-appropriate finishes, is designed specifically for protected areas. We advise on the correct product and whether planning consent or listed building consent is required.
A single window installation takes one day. Two or three windows on the same roof slope typically take 1.5–2 days. The most critical element is the flashing detail — correctly installed Velux flashings to the manufacturer's specification and the BS 8000 standard ensure a leak-free installation for the lifetime of the window.
Yes. Most Velux leaks in Oxford properties are caused by failed flashing kits rather than the window itself. The flashing kits are available as replacement parts and can usually be replaced in a half-day without removing the window. We diagnose the cause before quoting to ensure the right repair.
Velux roof window installation in Oxford typically costs £800–£1,800 per unit depending on the size, specification and access requirements. This includes the window, flashing kit and installation. Free written quotes. Call 0186 580 3181.
Standard Velux installations on the rear of properties are usually permitted development. Front-facing installations or those on listed buildings or in conservation areas may require planning permission. We advise on this at the survey stage for every Oxford address.
Yes. Failed Velux flashings are a common cause of roof leaks across Oxford. We replace the flashing kit or the full unit depending on the age and condition. Free survey and written quote.
Conservation and standard Velux windows. Correctly flashed, planning advice included. Free surveys across Oxford and Oxfordshire.
0186 580 3181