Velux installation and flashing repair across Downton and SP5. New roof light installation, EDW and BDX flashing replacement, leaking Velux diagnosis. Planning advice included.
Tell us the job in 30 seconds. No pushy sales, no call-out fee.
📞 Call Now: 0172 223 9611Velux window installation and flashing repair across Downton and surrounding SP5 villages. New roof light installation, EDW and BDX flashing replacement, leaking Velux diagnosis — and planning advice for properties in Downton's conservation areas or with permitted development restrictions.
The standard EDW flashing kit has a service life of 10–15 years in average UK conditions. Given Avon flood plain, sheltered valley and high flood plain humidity, fast moss accumulation on north slopes, properties in Downton on exposed elevations or south-west-facing slopes — especially given lime mortar required on Borough conservation area properties; moss on riverside slopes — experience shorter EDW service life. We recommend the upgraded BDX or BFX flashing kit on all exposed positions in the SP5 area for extended service life.
Most Velux installations fall within permitted development for Downton properties and do not require planning permission, subject to standard conditions (not projecting more than 150mm, not on principal highway-facing elevation). Properties within Downton's conservation areas or listed buildings have additional restrictions — we check the planning position for your specific property before any installation is confirmed.
| Work | Typical Cost |
|---|---|
| Single Velux — standard install | £700–£1,200 |
| Single Velux — conservation spec | £1,000–£1,600 |
| Flashing replacement (per window) | £250–£500 |
| Two-window installation | £1,200–£2,200 |
Free assessment for Velux installation or leaking flashing repair across Downton and the SP5 area.
📞 0172 223 9611Rooflights leak at the flashing kit, not usually the glass — so a leaking Velux is often a fitting or flashing problem rather than a faulty window.
When it is not the answer: A leaking rooflight often needs only a new flashing kit, not a whole new window — we'll check before quoting a replacement. Read the full guide.
We check the window, the flashing kit and the surrounding tiles or slates.
Itemised quote for a new flashing kit, a like-for-like swap, or a new install.
Usually a single day per rooflight.
We fit the window and manufacturer flashing kit, integrating it with the covering and underlay so it's fully weathertight.
Internal reveal made good if agreed, site cleared, guarantee handed over.
| Job | Typical duration |
|---|---|
| New flashing kit only | Half a day |
| Like-for-like replacement | 1 day |
| New rooflight install | 1–2 days |
| Multiple rooflights | 2–3 days |
We keep the opening covered and weathertight at all times; heavy rain can pause a mid-swap.
Rooflight work runs from scaffold or a tower for safe access to the slope. Scaffold is specified for: new installs, multiple units, or steep slopes - always itemised in your written quote, never a hidden extra, and we arrange it.
Historic timber and brick cottages along The Borough with newer estates around them; thatch and clay-tile heritage stock nearby. Pavement scaffold and skip permits go through Wiltshire Council; allow a few working days on streets like The Borough, the older High Street where space is tight.
| Job | Typical range | Notes |
|---|---|---|
| New flashing kit only | £180–£400 | Fix a leaking rooflight |
| Like-for-like replacement | £450–£900 | Incl. window & fit |
| New rooflight install | £900–£1,800 | Incl. opening up |
| Multiple rooflights | £1,600–£3,500 | Per project |
| Internal make-good | £150–£400 | Where plastering needed |
Worked example: A like-for-like Velux replacement on a loft in Downton: around £650 including window and flashing kit.
No deposit on repairs under £500; staged payments on larger jobs with nothing up front before materials are on site. Repairs are standard-rated; a full re-roof usually attracts 5% VAT.
Covering SP5 and surrounding postcodes.
Velux and other branded units carry manufacturer warranties; our fitting is guaranteed for up to 10 years.
If a fault appears in covered work, we come back and put it right. No quibbling, no re-charge.
Some internal access needed and a little plaster make-good on new installs; external work is quick and tidy. You do not need to stay home for external work - we just need power and access agreed in advance.
We plan installs around dry windows and never leave an opening exposed. Avon valley location keeps humidity high and accelerates moss on shaded slopes.
"Called for velux & skylights in Downton — they were professional from first call to completion. Free survey, honest quote, turned up when they said they would. Exactly what you want."
"Best roofer in the Downton area. They knew exactly what the issue was, fixed it properly the first time and left the place spotless. Highly recommend."
"Used them for velux & skylights after getting three quotes. Not the cheapest but clearly the most professional. Written guarantee, itemised quote, quality materials. Very happy."
Velux & Skylights costs in Downton depend on property size and scope. Single window install: £700–£1,200. Flashing replacement per window: £250–£500. Conservation spec from £1,000. Free survey — call 0172 223 9611.
Yes — we cover Downton and all surrounding SP5 villages 24/7. Response time to Downton is typically 20–35 minutes from our Salisbury base. No call-out fee. Call 0172 223 9611.
Yes — all surveys and quotes in Downton are completely free with no obligation. We assess your roof, confirm the cause of any issues, and give you a written quote. Given Avon flood plain, sheltered valley and the specific conditions at Downton, accurate diagnosis before quoting is essential — we always survey before pricing.
The most frequent calls from Downton involve lime mortar required on Borough conservation area properties; moss on riverside slopes. The Pre-1900 conservation village core, post-war fringe and Avon flood plain, sheltered valley create a specific pattern of deterioration — Avon flood plain, sheltered valley accelerates moss growth and valley blockages. We know Downton's property stock well and diagnose accurately before recommending any work.
Single Velux installation in Downton: half a day to one day. Flashing replacement per window: 2–4 hours.
Yes. We are NFRC registered and fully insured for all roofing work in Downton and across the SP5 area. £5m public liability insurance. All work carries a 10-year written workmanship guarantee. We can provide our registration number and insurance certificate on request.
Yes. Downton's Pre-1900 conservation village core, post-war fringe includes properties requiring period-appropriate techniques: lime mortar on pre-1920 construction, correct lead code specification, and reclaimed or matched tile sourcing. Given Downton's conservation area coverage, we are experienced with the planning considerations and material requirements.
No call-out fees. No obligation. Local velux & skylights specialists covering Downton and all of the SP5 area.
0172 223 9611