Flat Roofing in Surrey

Infinite Roofing provides professional flat roofing services throughout Surrey, including new installations, repairs, replacement roofs and specialist waterproofing systems.

Based in Epsom, we work with homeowners, landlords, property managers and businesses across Leatherhead, Cheam, Banstead, Tadworth, Ewell, Ashtead and the surrounding areas.

Whether you need a new flat roof for an extension, repairs to an ageing garage roof or a complete replacement for a commercial property, we can assess your requirements and recommend a suitable roofing solution.

Flat roofs need to do more than keep out the rain. Correct drainage, appropriate insulation, reliable waterproofing and properly constructed junctions all contribute to long-term performance.

With over 25 years of roofing industry experience, Infinite Roofing offers practical advice based on the design, condition and intended use of each roof.

Contact us today to discuss your flat roofing project and request a free, no-obligation quotation.

Professional Flat Roofing Services

Flat roofs are widely used on residential and commercial buildings because they provide a practical roofing solution for many different types of structure.

They are particularly common on house extensions, garages, dormers, porches, balconies and larger commercial premises.

Although commonly described as flat, these roofs generally require a slight fall to encourage rainwater towards the drainage system.

A correctly designed and installed flat roof should provide effective weather protection while accommodating the movements and conditions to which the building will be exposed.

Our flat roofing services include:

• New flat roof installations
• Flat roof repairs
• Replacement flat roofs
• Garage and extension roofing
• Flat roof waterproofing
• Single-ply membrane systems
• Felt roofing
• Fibreglass roofing
• Rubber roofing
• Roof inspections and leak investigations
• Roof refurbishment and maintenance
• Residential and commercial flat roofing

We assess each project individually, considering the existing structure, roof dimensions, access arrangements, insulation requirements and appropriate waterproofing materials.

Our wider roofing services also include pitched roofs, specialist installations and general roofing maintenance.

New Flat Roof Installations

Installing a new flat roof involves more than applying a waterproof covering.

The entire system needs to be designed and constructed correctly, from the supporting structure and roof deck to insulation, drainage and external weatherproofing.

Poor installation can cause problems even when expensive materials have been used.

Common issues associated with unsuitable construction include standing water, premature membrane failure, condensation and leaks around roof edges or penetrations.

We provide new flat roofing installations for a range of domestic and commercial projects.

These can include new extensions, garages, replacement outbuildings and other structures requiring a reliable low-pitched roofing system.

What makes a good flat roof?

Several factors influence the performance of a flat roof:

• Suitable structural support
• Correctly formed drainage falls
• Appropriate roof decking
• Compatible waterproofing materials
• Proper insulation and moisture control
• Secure perimeter detailing
• Weatherproof junctions around adjoining walls
• Effective drainage outlets

A reliable installation depends on these components working together.

We consider the requirements of the complete roofing system rather than concentrating solely on the visible finished surface.

Flat Roof Repairs in Surrey

A leaking flat roof does not always need replacing.

Many problems develop around joints, edges, drainage outlets and other vulnerable details.

If the surrounding waterproofing remains in satisfactory condition, a targeted repair may provide a practical and cost-effective solution.

Our flat roof repair services cover common defects including:

• Cracked or split roofing membranes
• Failed seams and joints
• Damaged flashing
• Leaking rooflights
• Defective roof edges
• Blistering or lifting roof coverings
• Blocked drainage outlets
• Water penetration around roof penetrations
• Damage caused by storms or maintenance activities

One of the difficulties with flat roof leaks is identifying where water enters the roofing system.

Moisture can travel between layers before becoming visible inside the property, meaning the location of an internal damp patch may not correspond with the actual defect.

We investigate the affected roof and surrounding details before recommending repairs.

Where the waterproof covering has deteriorated extensively, we can discuss whether refurbishment or replacement would offer better long-term value.

Flat Roof Replacement

Flat roofing materials are designed to provide long-term weather protection, but no system lasts indefinitely.

Over time, exposure to sunlight, temperature changes, rainfall and general wear can affect the condition of the roof covering.

Problems can also arise from poor installation, inadequate drainage or defects in the underlying structure.

A replacement flat roof may be appropriate where existing waterproofing has deteriorated beyond economical repair.

Signs a flat roof may need replacing

Warning signs include:

• Repeated leaks across different areas
• Extensive cracking or splitting
• Widespread membrane deterioration
• Significant damage to the roof decking
• Persistent moisture within the roofing system
• Repeated unsuccessful repairs
• Serious drainage or construction problems

Replacement does not necessarily mean repeating the original roof specification.

Where appropriate, the project may provide an opportunity to improve insulation, drainage and waterproofing details.

We assess the existing roof before recommending a replacement system suited to the building’s requirements.

Flat Roofing Materials and Systems

Different flat roofing materials offer different characteristics, installation requirements and maintenance considerations.

Choosing the right system depends on the roof’s design, size, condition and intended use.

Infinite Roofing works with a range of roofing materials and can advise on suitable options for residential and commercial applications.

Felt Flat Roofing

Modern reinforced bituminous felt systems remain a practical option for many flat roofing projects.

They are commonly used on garages, extensions and other domestic or commercial structures.

Felt roofing systems generally incorporate multiple layers that work together to form a waterproof covering.

Correct installation, suitable detailing and appropriate drainage are essential to their performance.

Felt roofing can be particularly useful where a conventional flat roofing solution is required for an existing structure.

GRP Fibreglass Roofing

Glass-reinforced plastic, commonly called GRP or fibreglass, provides a rigid waterproof covering.

It can be suitable for domestic extensions, garages and other appropriately designed flat roofs.

GRP systems are formed using reinforcing materials and resins to create a continuous waterproof surface.

The quality of the finished installation depends on suitable roof decking, correct preparation and appropriate installation conditions.

Temperature, moisture and movement within the supporting structure must all be considered.

Where correctly specified and installed, fibreglass roofing can provide a durable and relatively low-maintenance finish.

EPDM Rubber Roofing

EPDM is a synthetic rubber roofing membrane commonly used for domestic and commercial flat roofs.

Its flexibility makes it suitable for various low-pitched roofing applications.

Depending on the roof dimensions and specification, EPDM can be installed using large membrane sheets, reducing the number of joints required.

However, edges, outlets, seams and penetrations still require careful detailing.

The suitability of EPDM depends on the roof construction, intended use and compatibility with the supporting materials.

Single-Ply Roofing Membranes

Single-ply membranes are commonly used on commercial properties and a range of modern flat roofing projects.

These systems use specialist waterproofing membranes installed according to the requirements of the particular product.

Different membranes offer varying characteristics relating to flexibility, installation and resistance to environmental conditions.

Infinite Roofing also offers specialist Alwitra Evalon roofing systems, providing a dedicated waterproofing option for suitable projects.

Selecting the correct system involves considering the building, the expected performance requirements and the specific installation details.

Flat Roofing for House Extensions

Flat roofs are particularly popular on single-storey rear and side extensions.

They allow homeowners to create additional living space while maintaining an appropriate roofline, especially where a traditional pitched roof would be impractical.

Extensions may incorporate rooflights, lanterns and other features designed to introduce natural daylight.

These components require carefully constructed waterproof junctions to prevent leaks.

A new extension roof also needs effective detailing where it joins the existing property.

We assess the proposed construction and recommend a roofing system suited to the design.

Our residential roofing services cover extension roofing alongside repairs and replacements for existing homes.

Garage and Outbuilding Flat Roofs

Garages and outbuildings frequently use flat or low-pitched roofing systems.

Older garage roofs may contain traditional felt coverings or other materials that have deteriorated through prolonged exposure.

A leaking garage roof can damage stored belongings, tools and the internal structure.

Replacing an ageing covering may provide an opportunity to improve the roof’s waterproofing and address underlying defects.

Before recommending a replacement, we consider the condition of the roof deck, drainage arrangements and any structural issues.

Where the existing system remains sound apart from an isolated defect, repairs may be possible.

For older garages, particular care may be required where existing roof materials could contain asbestos. Suspected asbestos-containing materials should be assessed and handled in accordance with applicable safety requirements.

Commercial Flat Roofing

Flat roofing is widely used on offices, retail premises, warehouses and other commercial buildings.

Commercial roofs can present additional considerations because of their size, access requirements and the equipment or services installed on them.

Rooflights, ventilation systems and mechanical plant may introduce numerous penetrations through the waterproof covering.

Each requires appropriate detailing to maintain weather resistance.

Commercial roofing work may also need to be planned around building occupancy and business operations.

Our commercial roofing services include inspections, repairs, refurbishment and replacement roofing.

We consider access, safety and potential disruption when planning commercial work.

Flat Roof Drainage and Standing Water

Effective drainage is one of the most important aspects of flat roof performance.

Although flat roofs are designed with shallow falls, water must still be directed towards suitable outlets or gutters.

Problems can develop when drainage becomes blocked, roof falls are inadequate or structural movement affects the roof surface.

Persistent ponding can expose waterproofing details to prolonged moisture and may contribute to deterioration in certain circumstances.

However, standing water does not automatically mean a roof has failed. Its significance depends on the roofing system, roof design and amount of water involved.

We assess drainage problems alongside the condition of the waterproof covering.

Possible remedial work may involve clearing outlets, repairing damaged components or improving the roof construction where necessary.

Flat Roof Insulation and Ventilation

Insulation is another important consideration when installing or replacing a flat roof.

A correctly designed roof should limit unwanted heat loss while managing the movement of moisture through the building.

Flat roofs can be constructed using different insulation arrangements, including warm roof and cold roof designs.

A warm roof generally positions insulation above the structural deck, helping maintain a more consistent temperature within the roof construction.

Cold roof designs require different arrangements and particular attention to ventilation and moisture control.

The appropriate specification depends on the building and the proposed work.

Where substantial refurbishment is planned, relevant building regulations may require improvements to thermal performance.

We consider insulation and moisture management as part of the overall roofing system rather than treating waterproofing as an isolated component.

How Much Does Flat Roofing Cost in Surrey?

The cost of a flat roof installation or replacement depends on several factors.

These include:

• Overall roof dimensions
• Choice of waterproofing system
• Condition of the existing roof
• Amount of preparation required
• Insulation specification
• Drainage requirements
• Rooflights and other penetrations
• Height and access arrangements
• Whether existing materials must be removed
• Complexity of the roof edges and junctions

For example, replacing a small garage roof is a different project from waterproofing a large extension containing several rooflights and complicated wall junctions.

The lowest initial quotation does not necessarily represent the best long-term value.

Materials, installation quality and the suitability of the proposed system all influence future maintenance requirements.

Infinite Roofing can assess your roofing project and provide a quotation based on the work required.

Our Flat Roofing Process

We aim to make the process straightforward, from your initial enquiry through to completing the roofing work.

Initial Consultation

We discuss your requirements, whether you need a new installation, repair or replacement.

Roof Assessment

Where appropriate, we assess the existing roof, identify defects and consider drainage, access and construction requirements.

Roofing Recommendations

We explain the available options and discuss suitable materials or repair methods.

Quotation

We provide details of the proposed work so you can review the scope before proceeding.

Installation or Repairs

The agreed work is carried out using methods appropriate to the selected roofing system.

The aim is a reliable, weather-resistant roof suited to the property.

Flat Roofing Across Surrey

Infinite Roofing is based in Epsom and provides flat roofing services throughout the surrounding parts of Surrey and nearby areas.

Our coverage includes:

• Epsom
• Cheam
• Leatherhead
• Banstead
• Ewell and West Ewell
• Tadworth
• Kingswood
• Ashtead

We work on a range of residential and commercial properties, including extensions, garages, offices and larger commercial buildings.

If your location is not listed, contact us with your postcode to check coverage.

Why Choose Infinite Roofing?

With over 25 years of industry experience, Infinite Roofing provides a broad range of roofing services for domestic and commercial clients.

We understand that choosing a flat roofing system involves more than selecting a material.

The roof must be suitable for the building, correctly installed and properly detailed around vulnerable areas.

Our approach focuses on identifying the requirements of the individual property and explaining appropriate solutions.

Where an existing flat roof can be repaired effectively, replacement may not be necessary.

Where deterioration is widespread, we can advise on options for refurbishment or a new installation.

Our aim is to provide practical roofing solutions supported by suitable materials and experienced workmanship.

Frequently Asked Questions About Flat Roofing

How long does a flat roof last?

The lifespan depends on the roofing material, quality of installation, exposure and maintenance. Different felt, fibreglass, EPDM and single-ply systems have different expected service lives. An inspection can help assess the remaining condition of an existing roof.

Can a leaking flat roof be repaired?

Yes, many flat roof leaks can be repaired if the damage is localised and the surrounding waterproofing remains sound. Extensive deterioration may make replacement more appropriate.

What is the best material for a flat roof?

There is no single best material for every property. The appropriate system depends on the roof’s design, substrate, intended use, drainage and budget. We can discuss suitable options for your particular project.

Do flat roofs need maintenance?

Yes. Regular checks can help identify blocked drainage, damaged joints, deteriorating edges and other developing defects. Maintenance requirements depend on the system and surrounding environment.

Can you replace a garage flat roof?

Yes. We provide flat roofing services for garages and outbuildings, including repairs and replacement coverings where appropriate.

Do you install flat roofs on extensions?

Yes. We provide flat roofing installations for residential extensions and other suitable structures, including projects incorporating rooflights and specialist waterproofing systems.

Get a Free Flat Roofing Quote in Surrey

If you need a new flat roof, repairs to an existing covering or advice about a replacement, contact Infinite Roofing.

We provide flat roofing services throughout Epsom and the surrounding areas of Surrey, working with homeowners, landlords and commercial clients.

Whether your project involves a small garage roof, a residential extension or a larger commercial building, we can discuss the work required and recommend the next step.

Call 01737 210204 or 07926 892502, or email info@infiniteroofing.co.uk to request your free, no-obligation quotation.