Flat RoofingContractors

Roofs we replace and build

Balconies and roof terraces across North Yorkshire

If you are planning a new roof terrace anywhere in North Yorkshire, planning permission and a structural check come first. Once they are in place, our vetted roofing teams, working under S&K, can insulate and waterproof the roof, form compliant thresholds and outlets, and prepare the surface for your chosen paving or decking.

London roof terrace with porcelain paving on pedestals over a waterproofed flat roof and a glass balustradeComputer-generated example image
Guide price
£1,800–£3,100
Survey
Free for new and replacement roofs
Quote
Fixed, in writing
Coverage
England, Wales, Scotland, NI

North Yorkshire at a glance

Largest towns
York, Middlesbrough, Harrogate, Scarborough
Postcode areas
DL, HG, TS, YO
Building control
City of York Council, Middlesbrough Council, North Yorkshire Council and 2 other councils
Neighbouring areas
County Durham · West Yorkshire · East Riding of Yorkshire · Tyne and Wear
Guide price region
Yorkshire and the Humber (−5% on West Midlands rates)

How much does balcony or terrace waterproofing cost in North Yorkshire?

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

JobGuide price inc VAT
Balcony (12 m²), liquid-applied, scaffold£1,800–£3,100
Single garage (18 m²), EPDM rubber£1,500–£2,650
Extension (20 m²), GRP, new deck + insulation£2,850–£5,100

Which flat roofs are common in North Yorkshire?

Flat roofs in North Yorkshire sit on newer estates where the first extension roofs are now being replaced, bungalows with flat-roofed side extensions and dormers and 1960s and 1970s link-detached houses with flat-roofed garages and porches. England averages roughly 870 mm of rain a year; the Pennine side of Yorkshire is wetter and windier than the east, so we specify for the site rather than the county. 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 North Yorkshire the application goes to City of York Council, Middlesbrough Council, North Yorkshire Council and 2 other councils. More on the rules.

Which waterproofing system is best for a balcony?

For most small balconies, a liquid-applied membrane is the practical choice, because it is brushed or rolled on and forms one continuous layer around posts, door frames and outlets with no seams to fail. Many systems include a hard-wearing, anti-slip topcoat.

GRP fibreglass gives a rigid, walkable surface and suits balconies left exposed rather than paved. On larger roof terraces under paving or decking, single-ply membranes are common, and mastic asphalt has a long record on concrete terraces and blocks of flats.

The choice also depends on what goes on top. Paving on pedestals protects the membrane, while an exposed balcony needs a system rated for foot traffic in its own right. We specify the build-up at survey.

How long does it take to waterproof a balcony?

A small balcony is typically waterproofed in two to four working days, plus time for scaffold if it is above ground floor. Liquid and GRP systems need dry weather and cure time between coats, which sets the pace.

The balcony door will be out of use while the membrane is laid and curing, and the room behind may be noisy while old paving or screed is broken out. If the team needs to work through the house, we agree a route and protect floors. Larger terraces with paving or decking take longer, because the finish has to be lifted and reinstated. Resin systems smell while they cure, so nearby windows are best kept closed.

Which towns in North Yorkshire do we cover?

Balconies and roof terraces in North Yorkshire: questions

Which towns in North Yorkshire do you cover?

All of North Yorkshire. The main towns have their own pages below, and if yours isn't listed we still cover it: send your postcode and we'll confirm.

How much does balcony or terrace waterproofing cost in North Yorkshire?

£1,800–£3,100 for a 12 m² balcony in a liquid-applied system including scaffold, at Yorkshire and the Humber guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Which postcode areas do you cover in North Yorkshire?

All of North Yorkshire, including the DL, HG, TS, YO postcode areas. Send your full postcode and we'll confirm.

Do you install balustrades?

Our work is the waterproofing and drainage. We detail the membrane around balustrade fixings so they stay watertight, and we can advise on where posts should be fixed.

How long does balcony waterproofing last?

It depends on the system and how well it is protected. As indicative ranges, liquid-applied systems last 10–25+ years by product and mastic asphalt 30–60, with good maintenance.

Can you waterproof a balcony without lifting the tiles?

Sometimes a liquid system can go over a sound, well-bonded surface, but if water is already getting under the tiles they usually have to come up.

Everything about balconies and roof terraces → · All flat roofing in North Yorkshire →

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