⭐ 4.9/5 · 143 Google Reviews — Both GRP and EPDM are significant upgrades over felt on a Leicester flat roof. The choice between them comes down to installation conditions, deck complexity and personal preference rather than one being clearly superior in all situations.
| Factor | GRP Fibreglass | EPDM Rubber |
|---|---|---|
| Design life | 25–40+ years | 30–50 years |
| Cost (20m²) | £1,800–£3,000 | £1,400–£2,400 |
| Min install temp | 5°C | 0°C |
| Seam risk | None (monolithic) | Low (bonded seams) |
| Repair ease | Moderate | Easy |
| Appearance | Hard, smooth, trim | Matte rubber finish |
| Complex geometry | Good | Excellent |
GRP is our standard recommendation for most Leicester rear extensions and garages. It is rigid, monolithic (no seams), walkable, and has a clean trim finish that suits the straight-edged geometry of standard Leicester extension flat roofs. GRP is also well-suited to installations with upstand details, roof lights and complex drainage arrangements where precise detailing is required.
EPDM is our recommendation where: the roof has complex geometry with multiple angles and curves; the installation is in autumn or early winter when temperatures may approach 5°C; the existing deck is irregular; or the client preference is for the matte rubber appearance. EPDM also has a longer published design life than GRP, though in practice both systems outlast the typical Leicester homeowner's ownership period if correctly installed.
“EPDM chosen for our extension flat roof as it was November and GRP couldn't be guaranteed in the temperatures. Excellent finish, watertight from day one.”
“GRP on our garage, EPDM on the kitchen extension — different systems explained clearly, both installed to the same quality standard.”
“Free survey confirmed deck was sound enough for GRP. Installed in two days, trim detail perfect. Very pleased with the finish.”
GRP is the most commonly installed system on Leicester residential flat roofs — approximately 70% of our flat roof replacements are GRP, with EPDM accounting for most of the remainder. Felt replacement is still carried out but primarily on budget-constrained projects where the full cost of GRP cannot be accommodated.
EPDM has a lower minimum installation temperature than GRP — bonded seams can be made at temperatures down to approximately 0°C with appropriate adhesive. This makes EPDM a more practical choice for autumn and winter installation on Leicester properties where urgent replacement cannot wait until spring. We advise on system selection based on installation timing as part of the survey.
EPDM has a matte, dark grey rubber appearance. GRP has a smoother, harder appearance and can be finished in any colour topcoat — grey is standard but white, buff and other colours are available. The rubber appearance of EPDM is sometimes preferred on older Leicester properties where the harder GRP finish looks less sympathetic; the choice is ultimately aesthetic as both systems perform well.
Typically yes, by 15–25%. On a standard 20–25 m² Leicester rear extension, EPDM installation is approximately £300–£600 less expensive than GRP. Both systems require the same deck preparation and insulation work, so the cost difference is primarily in the membrane material and labour.
Most Leicester residential flat roof replacements take 1–2 days for the roof covering work. Deck replacement or repair, if required, adds 1–2 days. GRP requires a cure period of 24–48 hours after application before the final topcoat; EPDM is traffickable immediately after installation. We typically complete a standard Leicester extension or garage flat roof replacement in 1–3 days total.
EPDM has a matte, dark grey rubber appearance and slight flexibility underfoot. GRP has a harder, smoother finish and can be finished in any colour topcoat — grey is standard. Both look professional; EPDM is sometimes preferred on older Leicester properties where the harder GRP finish looks less sympathetic.
EPDM seam and puncture repairs are generally simpler than GRP repairs, requiring patch material and contact adhesive rather than fibreglass lamination. For most Leicester homeowners, both systems are unlikely to need repair within the first 20 years if correctly installed.
Both systems are appropriate for new-build flat roofs as well as replacements. On a new-build Leicester extension, GRP is most commonly specified; EPDM is frequently used where complex geometry or winter installation timing applies.
We cover all of Leicester city and the surrounding Leicestershire area. Free surveys with no call-out fee, written condition report within 48 hours of the visit. We have been working across Leicester and Leicestershire since 2003, carrying out repairs, re-roofing, flat roofing, lead work, chimney work and emergency call-outs across all property types and all LE postcodes.
NFRC registered (verifiable at nfrc.co.uk), £5m public liability insurance, 10-year written workmanship guarantee on all re-roofing work. No work starts without your written acceptance of the written itemised quote. Call 0116 319 1348 Monday–Friday 8am–6pm or Saturday 8am–2pm. Emergency line 24/7.
Every job starts with a free on-site survey. The written quote follows within 48 hours and specifies every element: scope of work, materials by manufacturer name, access method, guarantee period and payment terms. There are no verbal quotes, no time-pressure acceptance conditions, and no costs added on site without your prior written agreement. This is the standard we have operated to since 2003 and the standard we will continue to operate to. If you have had a poor experience with a Leicester roofer in the past, we would welcome the opportunity to demonstrate what transparent, professional roofing practice looks like.
Leicester's housing stock presents a wider range of roofing challenges than most UK cities. Within a single postcode you may find Victorian clay plain tile terraces from the 1880s, 1930s concrete interlocking tile semis, post-war estate housing with advancing nail sickness, and 1970s–80s extensions with failed felt flat roofs. The correct approach, materials and specification differ significantly between these property types. A contractor without genuine Leicester local knowledge applies the same solution regardless of the property — the wrong mortar on a Victorian chimney, the wrong tile profile on a period terrace, the wrong flat roof system for the substrate. We have been working specifically across Leicester since 2003 and carry the local knowledge that translates to correct specification on the first visit.
We cover all LE postcodes from central Leicester (LE1) through the city suburbs (LE2, LE3, LE4, LE5) to the outer areas (LE6–LE19 including Oadby, Wigston, Birstall, Blaby, Hinckley, Loughborough, Melton Mowbray and Syston). Survey visits are typically available within 3–7 working days for all postcodes. Emergency call-outs are attended within 1–3 hours for inner Leicester and 2–4 hours for outer areas. We do not sub-contract to unvetted tradespeople — every survey, quote and installation is carried out by our own team.
The process for every Leicester roofing job follows the same four stages. First: free on-site survey covering all relevant roof elements, with loft inspection where access permits. Second: written itemised quote within 48 hours specifying every element of the work including materials by manufacturer name, access method, guarantee period and payment terms. Third: written acceptance from you — no work begins without this. Fourth: the work itself, carried out to the specification in the accepted quote, with any on-site variations reported and agreed in writing before being carried out.
This process protects you and ensures that what is quoted is what is delivered. We have operated this process since 2003 and it is the foundation of the 143 Google reviews that give us a 4.9/5 rating across Leicester.
No call-out fees. No obligation. Written quote within 48 hours. Covering all of Leicester and Leicestershire.
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