Flat-roofed extensions, garages and outbuildings are common across Old Catton. Most of the 1970s-1990s felt on these structures is now at or past the end of its serviceable life. We install GRP fibreglass and EPDM systems with a 20-year material guarantee. Free survey, written quote.
Old Catton retains a distinct village character with a conservation-designated core around Church Street. Housing ranges from 18th century cottages to 1980s estate development. The mature street tree canopy generates significant guttering and valley maintenance demand throughout the year.
GRP fibreglass and EPDM rubber flat roofing on Old Catton extensions, garages and outbuildings. Full strip and deck inspection, deck replacement where needed, correct falls design, outlet sizing, and 20-year material guarantee. No hidden deck replacement costs — we include them in the quote after survey.
Old Catton's Village stock, Victorian through to 1980s means flat-roofed additions are common. Tree debris blockage in valleys and gutters is the highest-frequency maintenance issue in Old Catton. Conservation area properties require material matching on any significant repair. Original cottages on Church Street and Manor Road have lime mortar pointing that must not be replaced with cement. GRP is our recommended system for most residential flat roofs — it tolerates Norfolk's thermal cycling better than felt and requires no maintenance for the first 10 years.
The most common mistake in flat roofing is putting a new covering over a wet or compromised deck. Original 1970s-80s chipboard decks on Old Catton properties are frequently saturated by the time the covering visibly fails — water has been entering slowly for years. We inspect every deck before quoting and include replacement in the quote where needed. A new GRP roof over a compromised deck will fail early regardless of system quality.
A roofer who works in Old Catton regularly knows the housing stock, the tile profiles in common use, the access challenges on local streets, and the planning constraints that apply in the area. We cover Old Catton as part of our regular Norwich patch — not as an out-of-area job that attracts a premium. Call 0160 339 6191 for a free survey, typically available within the week.
Flat roofing demand in Old Catton is driven by extensions and outbuildings, and we tailor the system and drainage to how exposed each Old Catton roof is rather than fitting a one-size spec.
Standard garage (14-18m2) from £900-1,600 GRP. Medium extension (20-30m2) from £1,800-3,200. Deck replacement where needed at £25-45/m2. Written itemised quote after free survey. Conservation area repairs in Old Catton village core carry a 10-20% premium for period-appropriate materials — this is built into our quotes from the outset.
Old Catton is a historic village on the northern edge of the city, with a protected conservation core. The first thing to establish is whether you are looking at an isolated repair or the early signs of a roof past its serviceable life.
When it is not the answer: If a sound GRP or EPDM roof has a single failed detail, a targeted repair beats a full re-cover — and if the "leak" is condensation, a new covering alone will not fix it. Read the full guide.
On a Old Catton flat roof we check the deck, falls and ventilation first, because in the village core the common issues are heritage-tile matching, lead-detail failure and moss under mature trees; the outer estates show the usual concrete-tile wear. — and the “leak” is often condensation, not a hole. Old Catton is a historic village on the northern edge of the city, with a protected conservation core.
Every Old Catton job starts with a genuine inspection — roof surface and loft, not a ground-level glance — so we diagnose what has actually failed rather than guessing from a photo.
We put the quote in writing and break it down line by line — materials, access, scaffold if needed, and guarantee — so you can see exactly what you are paying for.
Once you are happy, we book a date that suits you, with weather margin built in and any Old Catton access arrangements confirmed in advance.
On the day we carry out the work with matched materials, keeping your Old Catton roof weathertight at every stage.
At the end we clear every scrap of debris, walk you through what we did, and hand over the written 10-year workmanship guarantee.
| Job | Typical duration |
|---|---|
| Single garage roof (GRP) | 1–2 days |
| Medium extension roof | 2–4 days |
| Large or complex flat roof | 4–7 days |
| Deck replacement (adds) | 1–2 days |
Work at height on Old Catton properties pauses in heavy rain or wind — we plan for it, and keep everything weathertight between sessions.
Old Catton’s village core has tight lanes and listed and conservation constraints that complicate scaffold, while the outer estates give easier access; the area sits under Broadland District Council, and conservation status affects both permits and materials. Most Old Catton flat roofs are low-level and worked from a tower; only first-floor and higher flat roofs need scaffold.
Old Catton’s conservation-area core requires heritage-appropriate, matched materials and sympathetic detailing.
A flat roof on a period cottage near Church Street in Old Catton: we survey, quote in writing and carry out the work to the standard the Old Catton roof needs, with the access this street requires itemised separately.
| Job | Typical range | Notes |
|---|---|---|
| GRP garage roof | From £900 | Standard single garage |
| EPDM garage roof | From £850 | Single-sheet rubber |
| Flat extension roof (medium) | £1,800–£3,200 | GRP or EPDM, incl. deck check |
| Large / complex flat roof | £3,000–£6,000 | Multiple areas, upstands |
| Warm-roof insulation upgrade (adds) | £400–£1,200 | To meet Building Regs |
No deposit on small flat-roof repairs. Staged payments on larger work — nothing before materials are on site. VAT status confirmed in writing.
Covering NR6 and surrounding postcodes.
All Old Catton work is backed by a 10-year written guarantee that transfers with the property, plus manufacturer cover on materials. The conservation streets around St Faiths Road and the old village green demand sympathetic materials.
A flat roof requires a minimum fall of 1:80 to drain fully, with the deck design following British Standard BS 6229 for flat roofing.
— BS 6229
Low-disruption for a garage or extension — a day or two of work, minimal noise, and no need to be home for external work. We clear all old felt and debris. You do not need to stay home for external work - we just need power and access agreed in advance.
Flat roofing needs dry weather to cure properly; Norfolk’s changeable conditions mean we watch the forecast and keep the deck covered between sessions. Mature village trees and a conservation setting mean shaded, moss-prone roofs and heritage-matching material constraints.
“GRP on the kitchen extension in Old Catton. Deck inspection found wet chipboard — included in the quote, no surprises.”
“GRP on the garage in Old Catton. Deck inspection found wet chipboard — included in the quote, no surprises.”
“GRP on the rear extension in Old Catton. Deck inspection found wet chipboard — included in the quote, no surprises.”
Old Catton's mature tree canopy creates specific flat roofing maintenance demands. Leaf debris accumulation on flat roofs is faster here than in less-treed suburbs — outlets block more frequently and standing water episodes are more common without adequate fall design. We specify generously-sized outlets and drainage channels on all Old Catton flat roof installations, and recommend annual outlet clearing in November as a minimum maintenance schedule.
A standard garage costs £900-1,600 for GRP. Medium extensions run £1,800-3,200. Deck replacement where needed adds £25-45/m2. Written itemised quote after free survey. In Old Catton specifically, in the village core the common issues are heritage-tile matching, lead-detail failure and moss under mature trees; the outer estates show the usual concrete-tile wear.
GRP has a design life of 25+ years and carries a 20-year material guarantee when installed by an approved applicator. In Norfolk's climate GRP significantly outperforms felt because it does not crack from thermal movement.
Sometimes — isolated blisters or cracks on a felt roof can be repaired if the deck is sound. If the covering is cracked throughout, the deck is wet, or the roof has been repaired multiple times, replacement is more cost-effective. We assess this at survey. This is typical of Old Catton roofs.
Most Old Catton garage and extension flat roofs are completed in a single day. Larger roofs or those requiring significant deck replacement may take 2 days.
Re-roofing an existing flat roof is permitted development in most cases. New flat-roofed extensions may require permission depending on size and location. We confirm the planning position as part of every free survey. This is typical of Old Catton roofs.
Properties in Old Catton's conservation area have additional planning requirements for material changes. Like-for-like repairs using matching materials typically do not require consent. Changes to material type or significant alterations may require a planning application. We assess this during every survey and advise at no charge.
Biocide treatment followed by a roof inspection is the recommended approach. Moss itself does not damage tiles directly, but it retains moisture, accelerates deterioration of mortar joints, and can dislodge tiles when it dries and contracts in summer. We carry out biocide treatment as a standalone service and as part of repair and maintenance packages. Mature village trees and a conservation setting mean shaded, moss-prone roofs and material constraints that rule out modern substitutes.
Annual outlet clearing is the primary maintenance requirement — debris accumulation blocks outlets and causes ponding. Beyond that, visual inspection every 2-3 years to check that edge flashings remain well-bonded and that no surface damage has occurred from foot traffic or impact. GRP does not require re-coating or surface treatment within its 25-year design life under normal conditions.
GRP fibreglass is a rigid system that forms a continuous monolithic deck — best for roofs under 50m2 where rigidity is an advantage. EPDM rubber is a flexible single-ply membrane better suited to larger areas where thermal movement across the surface is greater. Both carry 20-year material guarantees. We advise on the most appropriate system for each specific installation. The conservation streets around St Faiths Road and the old village green demand sympathetic materials.
In most cases, no — we strip the existing covering to inspect the deck before installing the new system. Installing new covering over existing felt conceals deck condition and voids the material guarantee. The one exception is GRP over a sound existing deck where the existing covering is stripped but the deck is confirmed sound on inspection.
No call-out fees. No obligation. Local Norwich roofers who know Old Catton properties.
0160 339 6191 ✉ Email Us