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GreenstoneRoofing

Flat Roofing

Flat Roofing Specialists for Extensions, Dormers and Garages

Single-ply, GRP and high-performance felt systems with proper falls and detailing.

Overview

Flat roofs fail at the details, not in the middle. Ponding water, poorly formed upstands and cheap trims cause the overwhelming majority of problems we're called to. We design falls, terminations and outlets first, then install a system rated for the exposure and traffic the roof actually gets.

Common warning signs

  • Standing water more than 48 hours after rainfall
  • Blistering, splitting or crazing in the membrane
  • Lifting or cracked edge trims
  • Damp appearing at the junction with the main wall
  • Sagging or spongy areas underfoot
  • Old three-layer felt beyond 15–20 years of service

Our process

  1. 01

    Tell us about the issue

    Send photos, symptoms and access details through the enquiry form or the demo assistant.

  2. 02

    Initial phone assessment

    A roofer talks the problem through, flags urgency and books the right survey slot.

  3. 03

    Roof inspection

    On-site or drone survey with photographs of every defect we find.

  4. 04

    Written quotation

    Itemised, fixed-scope quotation with materials, access and guarantee terms in writing.

  5. 05

    Work completed

    Scheduled works with photo updates each day and a clean-site policy throughout.

  6. 06

    Sign-off and aftercare

    Final walk-round, handover pack, guarantee documents and aftercare reminders.

Materials we use

  • EPDM rubber single-ply membranes
  • GRP fibreglass systems
  • Reinforced bituminous membranes
  • Warm-deck PIR insulation build-ups
  • Powder-coated aluminium edge trims

Flat Roofing FAQs

Ready for a straight answer on your roof?

Get an indicative estimate in under a minute, or book an inspection and we'll put a written quotation in your hands.

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