Velux roof window installation, replacement and flashing repairs in Lowden, Chippenham. Correct flashings as standard. Free no-obligation surveys.
In short: Velux and Roof Windows in Lowden, Chippenham: Velux work runs £150–£350 for a flashing repair, £1,200–£2,000 for a new window. We cover Lowden (SN15) with free quotes, no call-out fee and a 10-year guarantee. Most leaking skylights need a flashing kit, not a replacement; new windows need the right planning and flashing.
standard permitted development on most Lowden properties. Victorian stock near Corsham conservation boundary — check designation before installing.
Velux installation in Lowden: standard permitted development on most Lowden properties. Victorian stock near Corsham conservation boundary — check designation before installing. The most common call is a leaking Velux where the window is fine but the flashing kit has failed — significantly cheaper than window replacement. We diagnose correctly before quoting. Lowden is 2 miles from our base.
Free quotes. No call-out fees. under 15 min from Chippenham.
Full installation including tile cutting, counter battening and proprietary flashing kit.
Get a quote →Failed windows replaced in existing opening. Flashing condition assessed.
Get a quote →Most leaking Velux windows have a failed flashing, not a failed window. Kit replacement without window removal where possible.
Get a quote →Multiple roof window installations for loft conversions. Full coordination available.
Get a quote →"Cast iron gutters on Victorian end repaired. Correct compound, period-appropriate."
"Chimney repoint on 1975 property — flexible mortar correctly specified for the brick."
"Lead reflash on Victorian section of mixed-era property. Code 4, correctly dressed."
Lowden occupies the western side of Chippenham toward Corsham, with the proximity to the conservation area meaning some older properties have conservation-appropriate materials requirements alongside the standard estate housing profile.
Victorian and Edwardian properties on the town edge transitioning to post-war and 1970s–80s housing further west. The Corsham proximity means some properties have clay plain tile rather than the concrete interlocking dominant elsewhere in west Chippenham.
Lead valley failures on Victorian stock; early nail sickness on 1970s properties; and flat roof extension failures across both build phases. Clay tile matching required on period properties near the Corsham edge.
Lowden's position between the Victorian conservation area boundary and the post-war estate housing means we carry a broader material range to Lowden visits than to single-era areas — clay tile, lime mortar, concrete profiles and GRP materials.
Single installation: £400–£700. Replacement: £200–£450. Flat roof light: £500–£900. Flashing repair: £150–£350. Free quote — call 01249 247 076.
Standard domestic rear-slope installations: usually permitted development. Front-slope: may need householder consent. We check during the survey.
Usually not. Most leaking Velux windows have a failed flashing kit, not a failed window. Flashing kit replacement costs £150–£350 versus £400–£700 for a new window.
Lowden is 2 miles from our Chippenham base — under 15 min. No travel surcharge.
Yes — we work with loft conversion builders across Lowden and all of Chippenham. We handle the roofing element and coordinate with the build programme.
Velux recommends a minimum of 10% of floor area as glazed area. Two standard pivot windows (78×98cm) usually meet this for a typical loft bedroom.
Internal condensation indicates insufficient ventilation — not a window fault. Solutions include trickle ventilators or improved mechanical ventilation.
No call-out fees. Written quote. Local roofers covering Lowden and all of Chippenham.
01249 247 076Lowden is a close-knit Chippenham district of Victorian and early-20th-century terraces west of the centre, with some later infill. On this kind of stock, the problems we see most in Lowden are slipped slates and tiles on the terraces, eroded chimney pointing, and shared-valley issues between terraced properties. Lowden sits west of the town centre, its older terraced roofs long exposed to the prevailing weather.
For a new window we check rafter spacing, the room below and planning status; for a leak we diagnose the flashing.
Rear-slope installations are usually permitted development; front-slope, listed and conservation-area need checking first.
A fixed price for install or flashing repair, agreed before work.
The window is fitted and sealed with the correct flashing kit for your specific tile or slate profile.
We test for watertightness, make good internally where agreed, and guarantee the work.
| Job | Typical duration |
|---|---|
| Flashing kit repair | 2–4 hours |
| Replacement in existing opening | half to full day |
| New roof window (rear slope) | 1 day |
| Multiple windows | 1–2 days |
| Dormer roofing / repair | per scope |
Cutting a new opening needs dry conditions so the roof is never left open to rain; we weather-schedule new installations.
Lowden's terraced streets are tight with no side access, so scaffold setup and skip placement take longer and pass over the front. Scaffold and skip permits go through Wiltshire Council, and on the terraced streets off Marshfield Road we allow extra time for setup. Access is always itemised in your written quote, never a hidden extra.
Workmanship carries our 10-year guarantee; the window and flashing kit carry manufacturer warranties (Velux units typically 10 years) on top.
Last updated: August 2026
© Chippenham Roofing Experts · 01249 247 076
NFRC Registered · Fully Insured · 10-Year Guarantee