Flat Roofing in Duke Street Area: Victorian terrace with original clay tile and 100-year-old lead flashings. Victorian terrace rear extensions in the Duke Street area carry a mix of original lean-to slate and later felt flat roofs — GRP replacement is appropriate on felt flat roofs, while original slate lean-tos are assessed for repair or replacement.
Victorian two-up two-down terraces and bay-fronted semis on Duke Street, Upper and Lower Duke Street and the connecting grid — clay plain tile, prominent chimney stacks, original lead flashings.
Victorian terrace rear extensions in the Duke Street area carry a mix of original lean-to slate and later felt flat roofs — GRP replacement is appropriate on felt flat roofs, while original slate lean-tos are assessed for repair or replacement.
GRP replacement on felt extensions. Slate lean-to assessment for repair vs replace. Marine mortar for any pointing at abutments.
Every job starts with a free on-roof survey. Written quote within 24 hours specifying exactly what will be done, the materials to be used, and the total cost. No work begins without written acceptance. No call-out fee. Call 01704 620 427.
| Service | Price Range |
|---|---|
| Small extension flat roof (GRP, up to 15m²) | £900–£2,200 |
| Standard extension flat roof (GRP, 15–30m²) | £1,800–£3,500 |
| Garage flat roof (GRP or EPDM) | £1,200–£3,000 |
| EPDM extension (up to 20m²) | £1,100–£2,600 |
| Deck replacement where damaged (per m²) | £45–£90 |
All prices include materials and labour. Free written survey and quote — call 01704 620 427.
“GRP replacement on our rear extension. Correct fall specification, no pooling. Done in one day.”
“They stripped the old felt and checked the deck before fitting new GRP. Found a soft section — replaced it transparently.”
“Free survey confirmed the fall was wrong on our extension. Correction included in the quote. Now drains correctly.”
The Duke Street corridor and surrounding grid carries Victorian two-up two-down terraces and bay-fronted semis built between approximately 1880 and 1910. Original clay plain tile, prominent chimney stacks, and lead flashings at or past 100 years old are the defining characteristics. Pre-1900 soft brick requires lime mortar for all pointing work.
A flat roof survey assesses: existing covering condition, deck integrity (plywood, OSB or timber boards), drainage fall angle, outlet sizing, and any upstand or abutment details that require attention. Where the deck is soft or damaged we specify replacement as part of the quote — this is never added as a surprise on the day.
GRP fibreglass is our recommended specification for all coastal Southport flat roofs — seamless, 25-year design life, unaffected by coastal humidity. We laminate on site to the specific dimensions of your roof. The GRP topcoat is applied in appropriate weather conditions: above 5°C, dry, and with no rain forecast for 24 hours after application.
We confirm correct drainage fall on every flat roof installation. Flat roofs with insufficient fall pond water — the standing water accelerates membrane deterioration and, on GRP roofs, can lift the topcoat layer within 5–10 years. Fall is confirmed with a spirit level on completion. Call 01704 620 427 for a free flat roof survey.
GRP flat roof work is carried out year-round in dry conditions above 5°C. Most standard extension flat roofs are completed in one working day. Larger garage and commercial flat roofs take one to two days. We include waste removal and site cleaning in every flat roof quote. Written quote within 24 hours of the survey visit. All flat roof work carries a 10-year written workmanship guarantee. Free survey — call 01704 620 427.
Payment on completion for standard jobs. Larger projects structured with a 20% deposit on written quote acceptance. We carry public liability insurance certificates for presentation before work starts. References from recent local jobs available on request.
Flat Roofing in Duke Street Area starts from £900. Free written survey and quote — call 01704 620 427.
Yes. Duke Street Area is within our regular coverage area in the PR8 1 postcode. Free surveys and written quotes across the area.
Standard surveys booked within 48–72 hours. Emergency call-outs within 2–4 hours. Call 01704 620 427 any time.
Victorian two-up two-down terraces and bay-fronted semis on Duke Street, Upper and Lower Duke Street and the connecting grid — clay plain tile, prominent chimney stacks, original lead flashings. GRP replacement on felt extensions. Slate lean-to assessment for repair vs replace. Marine mortar for any pointing at abutments.
Yes. All work carries our 10-year written workmanship guarantee. NFRC registered, £5m public liability insurance. Free survey — no call-out fee.
No. Free surveys and written quotes across all of Duke Street Area and the surrounding PR8 1 area. You pay only for work you have accepted in writing.
Yes. NFRC registered with £5m public liability insurance and 10-year written guarantee. Credentials available on request before any work starts. Call 01704 620 427.
No call-out fee. Written quote within 24 hours. NFRC registered, fully insured.
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