- Guide price
- £12,550–£20,700
- 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 a commercial flat roof 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.
| Job | Guide price inc VAT |
|---|---|
| Commercial roof (100 m²), single-ply + insulation | £12,550–£20,700 |
| Condition survey and leak investigation | £140–£290 |
| Block of flats (150 m²), felt + insulation + scaffold | £14,750–£25,850 |
Which flat roofs are common in North Yorkshire?
Flat roofs in North Yorkshire sit on 1960s and 1970s link-detached houses with flat-roofed garages and porches, terraced streets with flat-roofed rear kitchens and bathrooms and shops with flat-roofed rear stores below flats. 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.
Do you offer condition surveys and phased budgets?
Yes. A condition survey with a written report is a paid service, guide £140–£290 for a typical single roof, with larger or multi-roof sites priced before we attend. A survey and quote for replacement work is free.
The report covers the covering, upstands, outlets, edges and rooflights, signs of ponding or wet insulation, and what needs doing now, soon and later. You can then plan a phased programme: urgent repairs first, then re-roofing in sections over one or more budget years, with each phase priced separately in your written quote.
Re-covering more than half of a roof over heated space usually triggers the thermal element rules, so the insulation is upgraded towards the renovation U-value where feasible; in England the non-domestic target is 0.18 W/m²K. We handle building control where it is needed. See building regulations and flat roof surveys.
Which roofing system suits a commercial flat roof?
Single-ply membrane usually suits large, simple roofs; built-up felt suits roofs with heavy foot traffic, plant or complex detailing; and a liquid-applied overlay suits a sound roof that needs new waterproofing without a full strip-out.
- Single-ply (PVC, TPO or FPO): light and quick to lay over large areas, with hot-air welded laps and fixing or bonding designed for the site's wind uplift. Indicative life 25–35+ years. See single-ply roofing.
- Built-up felt: two or three layers of reinforced bitumen membrane laid to BS 8217, hard-wearing around plant and maintenance routes. Modern systems last 15–25 years, high-performance systems longer. See torch-on felt roofing.
- Liquid-applied overlay: a reinforced coating that cures to one continuous layer, well suited to pipework, plant bases and awkward details. Indicative life 10–25+ years depending on the product. See liquid roofing.
Mastic asphalt suits concrete decks and walkways, and EPDM suits simpler roofs with few penetrations. An overlay only works where the existing roof is dry and firmly bonded, so we check for wet insulation before recommending one (see overlay or strip).
Which towns in North Yorkshire do we cover?
Commercial flat roofing 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 a commercial flat roof cost in North Yorkshire?
£12,550–£20,700 for a 100 m² commercial roof in single-ply with insulation, 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 need a hot works permit?
Only if torch-on felt or other naked-flame work is used, in which case the team works under your permit system with a fire watch afterwards. Where hot works are not allowed, we specify a flame-free system such as a cold-applied membrane.
Can you re-roof while our premises stay open?
Usually, yes. We phase the work so each section is watertight before the team leaves site, keep entrances and fire exits clear, and agree working hours and deliveries with you first.
Can our existing roof be overlaid instead of stripped?
Often, if the survey shows the existing covering is sound, dry and firmly bonded. Wet insulation, a soft deck or several old layers mean a strip-out is the better long-term answer.
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