Velux roof window installation, replacement and flashing repairs in Hardenhuish, Chippenham. Correct flashings as standard. Free no-obligation surveys.
In short: Velux and Roof Windows in Hardenhuish, Chippenham: Velux work runs £150–£350 for a flashing repair, £1,200–£2,000 for a new window. We cover Hardenhuish (SN14) 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. Loft conversions are increasingly popular on Hardenhuish detached properties.
Velux installation in Hardenhuish: standard permitted development. Loft conversions are increasingly popular on Hardenhuish detached properties. 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. Hardenhuish is 1 mile from our base.
Free quotes. No call-out fees. 3 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 →"Fascia and gutter replacement — original 1965 timber completely rotten. UPVC in a day."
"Lead reflash on all four chimney elements. Code 4 throughout. Dry first winter."
"Full chimney package — repoint, reflash, flaunching. One visit from scaffold."
Hardenhuish is Chippenham's largest post-war estate, positioned 1 mile north of the town centre. Exposure is typical for north Chippenham. The defining factor is age: built almost entirely 1958–1978, the entire estate is at the nail sickness threshold simultaneously.
Near-uniform 1958–78 concrete interlocking tile throughout. The most concentrated nail sickness zone in north Wiltshire. Original fixing nails are 55–65 years old and corroded through on the majority of properties.
Nail sickness is the single dominant call from Hardenhuish — more re-roof enquiries originate here than from any other Chippenham area. Properties that have had tiles re-fixed repeatedly by different contractors are on a maintenance treadmill that only re-roofing resolves.
We are 1 mile from Hardenhuish — 3 minutes. We carry out more nail sickness surveys here than anywhere else. The recommendation is almost always a full or phased re-roof, quoted slope-by-slope with both options presented side by side.
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.
Hardenhuish is 1 mile from our Chippenham base — 3 min. No travel surcharge.
Yes — we work with loft conversion builders across Hardenhuish 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 Hardenhuish and all of Chippenham.
01249 247 076Hardenhuish is an established Chippenham district dominated by 1960s–70s concrete-interlocking-tile semis and detached houses on the western edge of town. On this kind of stock, the problems we see most in Hardenhuish are nail sickness across the 1960s–70s concrete-tile roofs, dropped ridge and verge mortar, and end-of-life felt underlay. Hardenhuish sits on the exposed western edge of Chippenham, catching the prevailing south-westerly weather first.
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.
Hardenhuish is post-war estate housing with generous side access, driveways and space for scaffold and skips. Scaffold and skip permits go through Wiltshire Council, and on the estate roads off Bristol 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
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