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Crawley roofing service

Flat roofing in Crawley

Crawley has a huge number of garages, extensions, dormers and commercial roofs where a flat system is the right solution. We focus on falls, outlets, edge details and substrate condition as much as the membrane itself.

Fully insuredWork carried out with appropriate insurance in place.
20+ yearsPractical roofing experience across repairs and replacement.
Work guaranteedClear scope and workmanship you can stand behind.
Free estimatesA proper look at the job before you decide.
How AP Roofing can help

Flat-roof help for Crawley homes, garages and extensions.

AP Roofing works with Crawley property owners on leaking flat roofs, planned replacement and improvements during renewal. Whether the roof covers storage space or a room you use every day, we explain the repair options and the supporting work needed for an appropriate new covering.

  • Leak repairs and local damage

    We investigate splits, failed joints, damaged edges and leaking rooflight details, then assess whether a compatible local repair is a sensible option.

  • Replacement garage and extension roofs

    We renew worn coverings and identify necessary deck repairs, helping you plan a complete replacement around the condition and use of the building.

  • EPDM, GRP and felt options

    We explain the practical differences between suitable systems and recommend a specification based on the roof shape, surrounding details and preparation required.

  • Insulation during renewal

    For roofs over heated rooms, we can assess an insulation upgrade alongside the waterproofing, including its effect on edges, rooflights and wall junctions.

Send the postcode and tell us what the roof covers, whether it is leaking and if there are rooflights or low windows nearby. We can inspect the roof and set out a suitable repair or replacement scope.

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Local Crawley coverage with the technical detail behind it

Crawley has a huge number of garages, extensions, dormers and commercial roofs where a flat system is the right solution. We focus on falls, outlets, edge details and substrate condition as much as the membrane itself.

Areas of Crawley we cover

Flat extension roof with a dark membrane, raised rooflight and edge trims
Flat extension roof with a dark membrane, raised rooflight and clean edge trims

Pound Hill, Maidenbower, Furnace Green, Tilgate, Broadfield, Three Bridges and surrounding RH10/RH11 neighbourhoods. We also work in Three Bridges and nearby towns including Horley, Horsham and East Grinstead.

Many Crawley streets were built in coherent phases, so neighbouring homes can share tile profiles and roof forms. That is useful context, but extensions, loft work, replacement coverings and decades of repairs mean two similar houses can now behave very differently. We inspect the roof in front of us.

Conservation and planning context

Crawley Borough Council identifies designated conservation areas. That does not mean ordinary repairs suddenly become complicated, but if work changes external appearance, roof form or a protected building, it is worth checking the planning position first. Our Crawley roof planning guide links to the current council information.

AP Roofing roofer discussing the roof with a homeowner outside a house
Roofer in a green AP Roofing shirt discussing a roof survey outside a house

Get the right next step

Send the postcode, a short description and any safe ground-level photos you already have. We can then arrange an inspection or advise what information we need next.

Find out why the flat roof is leaking

A split membrane, open seam, loose trim or failed rooflight corner can often be repaired locally when the surrounding covering and deck are sound. Widespread brittleness, repeated patches or movement beneath the surface point towards a larger problem. We assess the waterproofing and the layers supporting it, rather than choosing a repair solely from the size of the stain on the ceiling.

Choose a system for the roof itself

EPDM rubber, GRP fibreglass and modern felt suit different combinations of shape, substrate and detailing. A simple garage roof may have few penetrations; an extension can have several rooflights, low window sills and a tight wall junction. The system should be selected after those constraints are understood. Preparation and workmanship at the edges matter as much as the main field of waterproofing.

Drainage, insulation and roof height

Where water collects, the outlet position and falls need checking. On a heated room, replacement also requires thought about insulation and vapour control. Adding thickness changes the height available at rooflights and flashings, so these decisions should be made together. An overlay is only sensible where retained layers are suitable; covering damp or unstable material can leave the underlying problem unresolved.

A quotation you can compare

Ask whether the price includes removing old material, deck repairs, the specified membrane, insulation where required, perimeter trims, outlets and waste. The guarantee should relate to the installation described. We explain the proposed work and any areas that remain uncertain until the roof is opened, so you can compare complete scopes.

AP Roofing roofer inspecting a flat roof beside a raised rooflight
Roofer in green AP Roofing workwear inspecting a flat roof with edge protection

Understand the work in more detail

See our flat roofing guide for materials and repair methods, and read the guarantee information before agreeing a scope.

Flat roofing in Crawley?

Call us or send a short description. We will start with the problem, not a sales script.

Talk to a roofer

Tell us what the roof is doing.

A leak, a loose tile, a tired flat roof or a full replacement. We will start with the problem in plain English.

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Let’s look at your roof.

Tell us what needs attention and where you are. We’ll get back to you to discuss the next step.

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Need to speak to us?01293 387 599