Flats, HMOs and block roofs across Surrey

Guide price

£17,100–£29,900

Survey

Free for new and replacement roofs

Quote

Fixed, in writing

Coverage

England, Wales, Scotland, NI

How much does a block or HMO roof cost in Surrey?

Guide prices including VAT at South East rates. The fixed price comes after a free survey for new and replacement roofs.

Which flat roofs are common in Surrey?

Flat roofs in Surrey sit on lock-up garage blocks on estates, newer estates where the first extension roofs are now being replaced and shops with flat-roofed rear stores below flats. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain. Approximate 1991–2020 regional averages based on Met Office data.

Building regulations in England

Replacing more than half of a roof over a heated room usually counts as renovating a thermal element, so it is insulated to current standards and notified to building control. Renovated roofs over heated rooms are insulated to around 0.16 W/m²K where that's feasible, and new extension roofs are built to 0.15 W/m²K. In Surrey the application goes to Woking Borough Council, Guildford Borough Council, Elmbridge Borough Council and 8 other councils. More on the rules.

Which roofing systems last longest on a block of flats?

Mastic asphalt, EPDM, single-ply and high-performance built-up felt all give long service lives on block roofs; the right choice depends on the deck, how the roof is used, the details and the whole-life cost.

• Mastic asphalt: 30–60 years with maintenance, common on concrete-decked blocks and walkways. See mastic asphalt roofing.
• EPDM: 25–50 years, laid in large sheets with few joins.
• Single-ply: 25–35+ years, quick to lay on larger roofs, with welded laps. See single-ply roofing.
• Built-up felt: 15–25 years for modern torch-on systems and longer for high-performance systems, robust where maintenance teams walk the roof.
• Liquid-applied: 10–25+ years by product, useful as an overlay on a sound roof with complex details.

The cheapest roof today is not always the cheapest over the life of the building. A longer-life system, with tapered insulation to cure ponding, can mean fewer reactive repairs and fewer rounds of consultation. These lives are indicative and assume good specification and regular maintenance.

How do you manage access and residents during the work?

We agree an access and communication plan with the agent or freeholder before the scaffold goes up, so residents know what is happening and when.

That usually covers notices in the common parts and letters to each flat, scaffold and skip positions, keeping entrances, escape routes and bin stores clear, working hours, securing the scaffold out of hours, and a named contact for questions. If we need to look at a ceiling inside a top-floor flat, we arrange access through the agent or landlord.

Occupied blocks are re-roofed in phases, with each section watertight before the team leaves site, which also lets a larger roof be spread over more than one service charge year. Hot works near windows, vents and escape routes are tightly controlled, or avoided altogether with cold-applied systems.

Which towns in Surrey do we cover?

• Woking
• Guildford
• Esher
• Redhill
• Staines-upon-Thames
• Banstead
• Leatherhead
• Ewell
• Farnham
• Epsom
• Camberley
• Egham
• Sunbury-on-Thames
• Ashford, Surrey
• Godalming
• Reigate
• Horley
• Caterham
• Weybridge
• West Molesey
• Dorking
• Haslemere
• Cobham
• Chertsey

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