Loft Conversion Roofing specialists in Portchester. Coastal specification, 10-year guarantee, free written quotes with no call-out fee.
Tell us the job in 30 seconds. No pushy sales, no call-out fee.
📞 Call Now: 0239 307 1334Portchester's Victorian, 1930s and post-war mix housing requires careful structural assessment before any loft conversion roofing work. Rafter sizing, ridge beam specification and dormer structural details all depend on the original construction era.
Dormer flat roofs on Portchester loft conversions face Portsmouth Harbour salt air in finished position. We specify GRP flat roof systems on all dormer cheeks and tops as standard. Coastal conditions here make felt an inadequate specification.
Velux roof lights are lower cost and preserve the original roof line. Dormers provide more floor space but require planning permission. We advise on structural and planning implications of both options.
| Service | Cost | Notes |
|---|---|---|
| Velux installation per window | 400-700 | Coastal-grade flashing included |
| Dormer flat roof GRP | 1200-2500 | Full GRP specification |
| Structural rafter works | POA | Assessed on survey |
| Full loft conversion roofing package | 3500-8000 | Structural membrane tiles Velux |
"Harbour-facing Edwardian — severe lead corrosion on the chimney flashings. Heavier code lead specified correctly for the harbour exposure."
"Post-war estate re-roof at Portchester North — nail sickness across two slopes, re-fixed with stainless. 10-year guarantee."
"GRP flat roof on our harbour-facing extension. Portsmouth Roofing recommended GRP over felt immediately given the position. Correct call."
A full re-roof is the right call when repairs keep recurring, nail sickness affects multiple slopes, or the covering has reached the end of its life for its type.
When it is not the answer: If the tiles are sound but the fixings have failed, a strip-and-relay re-fix costs far less than a full replacement Read the full guide.
Harbourside position by the castle carries high salt exposure and conservation material constraints. Portchester's conservation castle village needs sympathetic access and material matching; surrounding estates have open roofs. It is why we specify marine-grade fixings and correct lead codes as standard on Portchester roofs — the coastal environment punishes anything less.
We assess the whole roof — covering, fixings, timbers and underlay — and confirm whether re-roofing or re-fixing is the honest answer.
An itemised fixed quote: materials, marine-grade fixings, scaffold, waste and guarantee, with no vague allowances.
We book the work and erect scaffold; most re-roofs start within a fortnight of acceptance.
Strip, inspect and replace defective timbers, fit breathable underlay, batten and re-cover with marine-grade stainless fixings to BS 5534.
Full site clear, waste removed, final inspection and your transferable 10-year guarantee handed over.
| Job | Typical duration |
|---|---|
| Terrace roof re-cover | 3–5 days |
| 3-bed semi re-roof | 5–8 days |
| Detached / complex roof | 1–2 weeks |
| Added timber or structural repair | +1–2 days |
| Scaffold erect and strike | Included in programme |
Sustained rain or high wind pauses stripping — we never leave a roof open overnight and weatherproof at the end of each day.
A full re-roof always needs scaffold to every elevation for safe working and materials handling. Scaffold is specified for: the full duration of any re-roof — it is included and itemised in the quote, never a hidden extra - always itemised in your written quote, never a hidden extra, and we arrange it.
Portchester's conservation castle village needs sympathetic access and material matching; surrounding estates have open roofs. Pavement scaffold and skip permits go through Fareham Borough Council; allow a few working days on streets like Castle Street, White Hart Lane, West Street where space is tight.
| Job | Typical range | Notes |
|---|---|---|
| Slipped or cracked tiles | £150–£350 | Per visit incl. access |
| Leak diagnosis & repair | £150–£500 | Depends on water travel |
| Chimney flashing | £200–£600 | Code 5–6 lead |
| Valley repair | £400–£900 | Strip and re-lay |
| Nail-sickness re-fix (per slope) | £600–£1,200 | Estate stock |
Worked example: A typical job on a property off Castle Street in Portchester, including access and waste removal, sits in the middle of the ranges above once surveyed.
No deposit on repairs under £500. Staged payments on re-roofs — nothing up front before materials are on site. All prices include VAT; written itemised quote before any work.
Covering PO16 and surrounding postcodes.
The complete re-roof carries a 10-year written workmanship guarantee, transferable if you sell, with manufacturer warranties on tiles and underlay on top.
If a fault appears in covered work, we come back and put it right. No quibbling, no re-charge.
A re-roof means a week or more of scaffold, skip and daily activity — we protect the garden and drive, keep the site tidy, and agree access and parking before we start. You do not need to stay home for external work - we just need power and access agreed in advance.
Re-roofs run through most of the year; we programme around forecast weather and stage the strip so the roof is never exposed to a wet night. Harbourside position by the castle carries high salt exposure and conservation material constraints.
Yes structural rafter works, dormer roofing, Velux installation and tile reinstatement across Portchester. Call 0239 307 1334.
GRP fibreglass as standard. Coastal conditions make felt inadequate.
Velux within permitted development limits typically do not. Dormers usually require planning. We advise on requirements before quoting.
Yes building regulations compliance documentation on completion.
Yes we source appropriate reclaimed materials and advise on planning requirements.
Yes free survey and written quote. Call 0239 307 1334.
Yes. NFRC registered, fully insured, 10-year written guarantee.
Portchester sits on the northern shore of Portsmouth Harbour, directly exposed to harbour winds from the south and east. The castle and historic core sit within a conservation area where planning constraints add complexity to every roofing decision.
The castle village conservation area carries Victorian and Edwardian stock requiring heritage materials and lime mortars. Shore Road and the harbour frontage require the same specification as exposed Gosport positions. Post-war Portchester North is a third distinct profile.
Conservation area Portchester castle village loft conversions require planning consent. We advise on acceptable configurations and material specifications before any loft conversion roofing work begins. Every job we carry out in Portchester is specified for these specific conditions — not a generic Portsmouth-wide approach.
No call-out fees. No obligation. Loft Conversion Roofing specialists in Portchester.
0239 307 1334