⚡ Emergency roof repairs available 24/7 — Call now: 01273 973 996
⭐ 4.9/5 · 127 Google Reviews · GRP Fibreglass & EPDM Specialists

Flat Roofing in Shoreham-by-Sea

In Shoreham we handle flat roofing the thorough way — inspect first, explain the options, price it clearly, and warranty the workmanship for a decade.

📞 Call Now: 01273 973 996

Tell us the job in 30 seconds. No pushy sales, no call-out fee.

20+
Years Local
127
5★ Reviews
24/7
Emergency
10yr
Guarantee
NFRC Registered
Fully Insured
10 Year Guarantee
Free Quotes
No Hidden Costs
Flat Roofing in Shoreham-by-Sea

Flat Roofing in Shoreham-by-Sea

Moisture retention from the Adur valley accelerates felt underlay decay — flat roofs and older pitched roofs both affected. The flat roofs on Shoreham-by-Sea's extensions, garages and outbuildings require the right material specification for local conditions. We install GRP as our first choice in exposed positions.

Flat Roof Drainage in Shoreham-by-Sea — Getting It Right

River Adur creates elevated ground-level humidity across the town — higher than neighbouring Hove despite similar coastal position. Flood plain properties see accelerated moss growth and increased felt underlay decay from sustained damp. South-westerly exposure from the river mouth. Correct fall and drainage specification is critical in Shoreham-by-Sea's rainfall pattern. We survey the existing structure, assess drainage routes, and specify falls that clear the roof surface within 24 hours of rainfall stopping.

Deck Inspection — What We Find Under the Old Roof

We always strip to the deck before installation. Common findings on Shoreham-by-Sea properties: saturated OSB or plywood deck from years of felt failure; joist rot from sustained moisture; inadequate insulation. We document all findings before quoting for extra work — never proceed without your agreement.

Maintenance for Shoreham-by-Sea Flat Roofs

A GRP flat roof in Shoreham-by-Sea requires minimal maintenance — an annual inspection and clearing of any debris from outlets. EPDM requires lap joint inspection every 2-3 years in West Sussex conditions. We carry out free annual inspections for all flat roofing customers for the first 5 years after installation.

Flat Roofing Costs in Shoreham-by-Sea
GRP fibreglass (per sqm installed)£70 - £90
EPDM rubber (per sqm installed)£55 - £75
Kitchen extension (20-25 sqm)£1,400 - £2,250
Garage (20-30 sqm)£1,400 - £2,700
Larger area (40-60 sqm)£2,800 - £5,400
Call for a Free Quote: 01273 973 996
Customer Reviews

What Shoreham-by-Sea Homeowners Say

★★★★★

“Old felt roof on the extension had been leaking for two years. GRP installed in a day and a half. Looks completely different and I have no doubt it will outlast everything else on the property.”

Nick W. · Shoreham High Street
★★★★★

“Replaced the garage felt with GRP. Quick, tidy and they found some deck rot I wasn't aware of — fixed it and showed me before proceeding. Honest job.”

Julie P. · Shoreham Beach
★★★★★

“Third flat roof replacement in 30 years on the same extension. Went with GRP this time on their advice. Should be the last time I ever need to do it.”

Tom H. · Brighton Road, Shoreham

Is Flat Roofing the Right Fix?

In Shoreham, most flat roofing jobs announce themselves before you ever get on the roof. Flat roofs fail differently from pitched roofs — the signs are ponding, splits and lifting laps rather than slipped tiles.

What to look for:

When it is not the answer: If a GRP or EPDM roof is only 10 years old with a single split, a localised repair is usually right — replacement would be premature — see our guide.

Comparison diagram of warm deck and cold deck flat roof construction
Warm deck vs cold deck — where the insulation sits changes how a flat roof performs.
Local Knowledge

What Makes Shoreham-by-Sea Different

The Housing Stock

Victorian and Edwardian terraces near the High Street, 1930s semis along Brighton Road, 1920s-30s houseboat-era bungalows on Shoreham Beach. Mixed clay tile on Victorian stock, concrete interlocking on 1930s-50s expansion, original slate on some Edwardian properties..

Climate and Exposure

River Adur creates elevated ground-level humidity — higher than neighbouring Hove. Flood plain properties see accelerated moss and felt decay..

The Key Issue in Shoreham-by-Sea

The Adur Valley humidity accelerates felt underlay decay on flat roofs and older pitched roofs. Bungalow flat sections fail faster here than equivalent inland properties..

Pricing note: Flood plain properties see higher ongoing maintenance costs than elevated equivalents — budget for more frequent guttering and valley work..

How It Works

Our Flat Roofing Process in Shoreham-by-Sea

Every job follows the same clear process — no surprises, no hidden costs, full communication throughout.

1
Free Flat Roof Survey

We inspect the existing membrane, check drainage falls, assess the deck condition and identify any structural issues before quoting.

2
Strip to Deck

All existing felt or membrane stripped. Deck inspected thoroughly — any rot or saturation documented and quoted for before work proceeds.

3
Deck Preparation

Deck repaired or replaced where needed. Any drainage issues corrected. Falls assessed and improved where possible.

4
GRP or EPDM Installation

New membrane installed to manufacturer specification. GRP: full lamination across the entire deck as a single membrane. All upstands, outlets and penetrations correctly detailed.

5
Completion and Guarantee

10-year written workmanship guarantee issued. Free annual inspection for the first 5 years after installation.

Typical Timescales in Shoreham

As a guide to what to expect in Shoreham, typical job times run:

JobTypical duration
Localised felt repair1–3 hours
Small extension / garage roof (GRP)1–2 days
EPDM rubber recover1–2 days
Warm-deck build-up (per roof)2–4 days
Full strip & re-lay2–4 days

For Shoreham jobs, gRP and warm-deck systems need dry, mild conditions to cure — we book them into settled windows and never lay resin onto a wet deck.

Scaffold, Skips & Street Access in Shoreham

Access shapes every Shoreham quote: most flat roofs are reached from a tower or ladder; scaffold is needed only where the roof is at height or edge protection is required. Scaffold is specified for first-floor or higher flat roofs, and anywhere an exposed edge needs protection — always itemised in your written quote, never a hidden extra, and we arrange it.

In Shoreham, Shoreham's old town has tight-packed period terraces with limited access, alongside more open inter-war and modern housing. Pavement scaffold and skip permits go through Adur District Council; allow a few working days on streets like High Street, East Street, Brunswick Road where space is tight.

Flat Roofing Prices in Shoreham

Typical flat roofing costs in Shoreham (your written quote is fixed after survey):

JobTypical rangeNotes
Localised felt repair£150–£350Per visit
Garage / small extension (GRP)£800–£2,000Fibreglass, one-piece
EPDM rubber roof£1,200–£3,000Single-ply, long life
Warm-deck build-up£2,000–£4,500Insulated, Building Regs
Full strip & re-lay (large)£3,000–£6,000Size dependent

What moves the price in Shoreham

Worked example: A new GRP garage roof on a period terrace off East Street typically runs around £1,400, including access and waste.

In Shoreham, no deposit on small repairs. Staged payments on larger flat-roof projects, materials-on-site first.

Your Guarantee, Explained

On Shoreham roofs, our workmanship is backed by a written 10-year guarantee, with manufacturer warranties on materials on top — in writing, every time.

A covered fault means we return and fix it at our cost — that is what the guarantee is for.

What It Is Like While We Work

Usually a quiet one- to two-day job over an extension or garage — minimal mess, and we clear the old covering as we go. You do not need to stay home for external work — we just need power and access agreed in advance.

Felt and EPDM can be laid in cooler weather; GRP needs mild, dry conditions to cure, so we plan resin work around the forecast. Locally, between the River Adur and the sea, Shoreham is fully coastal-exposed, with salt air and gales attacking lead and mortar.

FAQ

Flat Roofing Shoreham-by-Sea — Frequently Asked Questions

GRP fibreglass is our recommendation for most Shoreham-by-Sea properties. It forms a seamless, jointless membrane with no lap joints to fail, resists UV well, and has an expected life of 30-40 years. EPDM is suitable for sheltered positions. Traditional felt is not recommended for West Sussex conditions.

GRP fibreglass is £70-90 per sqm installed. A typical kitchen extension (20-25 sqm) costs £1,400-£2,250. A double garage (40 sqm) costs £2,800-£3,600. All prices include stripping the old felt and debris disposal.

GRP fibreglass correctly installed lasts 30-40 years in West Sussex conditions. EPDM lasts 20-30 years. Traditional felt lasts 8-12 years. The significant lifespan difference justifies the higher upfront cost of GRP for most customers.

Replacing a flat roof with the same material and specification is permitted development. Changing the roof type (e.g. adding a raised parapet or changing the drainage system significantly) may require planning approval. We advise on this during the free survey.

Yes — this is the most common flat roofing job we carry out. We strip all existing felt, inspect and repair the deck if needed, and install a GRP system directly over the existing structure in most cases.

10-year written workmanship guarantee on all GRP and EPDM installations. The GRP material itself carries a manufacturer guarantee of 25 years.

We cover Shoreham-by-Sea and the surrounding area including Hove, Portslade, Lancing. Call 01273 973 996 to arrange a free survey.

Further Reading

Related Guides

How Long Does a Flat Roof Last in Coastal Conditions? → GRP vs EPDM: Which is Right for Brighton? → Best Roofing Materials for Coastal Properties →
SHOREHAM-BY-SEA

Free Quote for Flat Roofing in Shoreham-by-Sea

No call-out fee. No obligation. Honest quote from a local roofer.

01273 973 996

© 2025 Brighton Roofing Experts · Shoreham-by-Sea, East Sussex · 01273 973 996

NFRC Registered · Fully Insured · 10-Year Guarantee