Ely at a glance
- Postcode districts
- CB7
- Population
- about 20,574 (GeoNames)
- Council area
- East Cambridgeshire District Council
- Building approval
- East Cambridgeshire District Council building control, or a registered building control approver
- Nearest main town
- Cambridge, about 15 miles
- Guide price region
- East of England (+5% on West Midlands rates)
What does a balcony or terrace in Ely need?
Balcony membranes in Ely wear out like any roof, but faster where they are exposed to foot traffic, furniture and planters. Once the topcoat has worn through or cracked around posts and edges, a full re-waterproofing usually lasts longer than repeated patching.
Ely's flat roofs are mostly on bungalows with flat-roofed side extensions and dormers, with plenty on 1930s semis with flat-roofed garages and kitchen extensions too. The East of England is the driest part of Britain, with parts of the Anglian region around 630 mm a year, so summer heat and UV, not rainfall, do most of the ageing on a felt roof.
How much does balcony or terrace waterproofing cost in Ely?
Guide price in Ely: £2,000–£3,400 for a 12 m² balcony in a liquid-applied system including scaffold, including VAT at East of England rates. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Balcony (12 m²), liquid-applied, scaffold | £2,000–£3,400 |
| Single garage (18 m²), EPDM rubber | £1,700–£2,950 |
| Extension (20 m²), GRP, new deck + insulation | £3,150–£5,650 |
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.
What's included?
- Free survey of the deck, falls, outlets and door thresholds
- Strip-out of the failed membrane and deck repairs
- New liquid, GRP, single-ply or asphalt waterproofing
- Written workmanship guarantee, with approvals handled where needed
Building regulations in England
Replacing more than half of a flat roof over a heated room usually counts as renovating a thermal element, so the roof is insulated to around 0.16 W/m²K where that's technically and economically feasible, and the work is notified to building control: the council or a registered building control approver, unless a registered competent person self-certifies it. A roof on a new extension is built to 0.15 W/m²K. Patch repairs, and most unheated detached garages, don't trigger the upgrade. Structural changes, or a new covering that adds 15% or more to the roof's weight, also need approval. More on the rules.
Which nearby areas do we also cover?
Balconies and roof terraces in Ely: questions
Do you cover Ely?
Yes. Ely is part of our Cambridgeshire coverage, including postcode districts CB7. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.
Who checks building regulations for a flat roof in Ely?
Where the work needs approval it goes to East Cambridgeshire District Council building control, or a registered building control approver. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.
How much does balcony or terrace waterproofing cost in Ely?
£2,000–£3,400 for a 12 m² balcony in a liquid-applied system including scaffold, at East of England guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
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.
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.