EPDM rubber
A single-piece membrane with very few joints — well suited to garages, extensions and dormers.
Flat roofing · Guildford, Surrey
Flat Roofing in Guildford
Flat roofs have a poor reputation, and most of it is earned by how they used to be built: overlapping felt, little or no fall, and detailing that failed at the edges long before the middle. Modern single-ply and liquid systems, installed over a correctly built-up deck, behave in a completely different way.
We install and repair flat roofs across Guildford on extensions, garages, porches, dormers and the link sections between pitched slopes.
5-star rated on Google · 15+ years roofing in Guildford
15+ Years' Experience
Roofing across Guildford and Surrey
5-Star Rated on Google
Rated five stars by local homeowners
Local Guildford Roofers
Based in Guildford, covering the surrounding towns
Free Quotations
Written quotes with no obligation
What it involves
What our flat roofing work covers
- Assessing the existing deck, insulation and falls before specifying a system.
- Renewing or firring the deck so water runs to the outlet rather than ponding.
- Insulation upgrades where the roof is being rebuilt.
- Installing EPDM rubber, torch-on felt or GRP depending on the roof and its use.
- Forming upstands, kerbs, drips and trims properly at every edge.
- Tying flat sections into adjacent pitched roofs, walls and rooflights with correct leadwork.
Problems customers bring to us
- Standing water still sitting on the roof days after rain.
- Blisters, splits or bubbling across an old felt covering.
- Leaks appearing at the junction with a wall rather than in the middle of the field.
- Soft or springy areas pointing to a saturated deck.
- Rooflights and outlets that were never properly dressed in.
Signs the work may be needed
- Damp along the inside edge of an extension ceiling.
- Gravel or chippings washed into the gutter.
- Felt lifting at the perimeter trims.
- A roof that has been patched more than once in the last few years.
Our process
How the job runs, start to finish
- Step 1
Survey
We check the deck, falls, outlets and abutments — the leak is usually at a detail, not in the middle of the roof.
- Step 2
Specification
We recommend a system based on the size of the roof, foot traffic, and how it meets the surrounding structure.
- Step 3
Installation
Old build-up stripped, deck corrected, insulation and membrane laid, all edges and upstands formed.
- Step 4
Water test and sign-off
We check the drainage before leaving and explain the maintenance the system needs.
Options
Materials and systems we work with
Torch-on felt
A multi-layer reinforced bitumen system, robust and repairable, with a long track record.
GRP fibreglass
A seamless resin system that works well on smaller roofs and balconies needing a hard-wearing surface.
Why Guildford Roofing Co.
Experience, not guesswork
- Over 15+ years working on roofs across Guildford and the surrounding towns of Surrey.
- Five-star rated on Google by local homeowners.
- Free, written, itemised quotations — you see exactly what is included.
- Straight answers: if a repair is the better option than a replacement, we will say so.
- Sites left clean, with all waste removed.
Local context
Flat Roofing in Guildford
Guildford's streets are full of single-storey rear extensions, garage roofs and dormers added over the decades, many still carrying coverings that are well past their intended life. These are the roofs we are asked to look at most often, and the ones where getting the falls right matters most.
Completed work
Related roofing projects
Residential
Flat Roof Replacement Between Tiled Slopes
A ponding central flat section stripped back, falls corrected and re-covered, then tied into the two adjacent tiled slopes.
FAQs
Flat Roofing questions
- It depends on the system and the build-up beneath it. A properly installed modern membrane with correct falls will comfortably outlast the overlapping felt roofs it usually replaces.
Related services
You may also need
Flat Roof Repairs
Leaks, pooling water, splits and failed joints on flat roofs found and repaired properly — with an honest view on when replacement is the better buy.
Flat Roof Replacement
Failed flat roofs stripped back to the deck, falls corrected, and a new membrane system installed with proper edge detailing.
Conservatory Roof Replacement
Tired polycarbonate and glass conservatory roofs replaced with warmer, quieter, better-insulated alternatives.
Guttering, Fascias & Soffits
Rainwater goods and roofline renewed or repaired, with proper falls, secure brackets and eaves ventilation.
Get a free quote for flat roofing
Call 07418 603150 and tell us a little about the roof — we will arrange a proper look and a written quotation. If it is urgent, say so and we will prioritise it.
Get a free roofing quotation
Tell us what the roof is doing and we will take a proper look. Written quotations, no obligation, no sales pressure.