Luxury bathroom and wet-room refurbishment in Old Street. Trusted, professional, 30+ years' hands-on experience.
Bathrooms in Old Street sit above other homes, so waterproofing is everything. GS Renovation renovates en-suites and family bathrooms across EC1, from warehouse conversions near Clerkenwell to new-build apartments around the Angel. With 30+ years in North London, we tank, tile and plumb to standards that protect the flat below and satisfy the managing agents these Islington blocks answer to.

In a stacked EC1 apartment a leaking bathroom is not your problem alone, it is the ceiling of the flat downstairs. That is why we tank every wet area fully before a single tile goes on, bonding a waterproof membrane across floor and walls and forming falls that carry water to the drain. Wet rooms and walk-in showers demand this discipline most, and we detail the thresholds and junctions so nothing ever finds its way through.
Drainage and ventilation take planning in these buildings, where soil stacks and extract routes are fixed by the original design. We work with the existing risers rather than against them, add mechanical ventilation to clear moisture, and coordinate any changes with the managing agent. Underfloor heating, recessed lighting and quality tiling complete a bathroom that is warm, dry and quiet, with the sound insulation these Islington flats need between floors.
Apartments around Old Street rarely have space to spare, so an added en-suite or a reworked bathroom has to earn every centimetre. We plan compact layouts with wall-hung sanitaryware, slimline cisterns and walk-in showers that feel generous without stealing floor area. Where a converted warehouse offers a taller ceiling, we can exploit it with concealed services and dramatic tiling; where a new-build is tight, we design ruthlessly around the fixed plumbing.
An en-suite carved from a bedroom means running new waste and supply through an occupied, managed flat, so we agree isolations and access with the managing agent before starting. Notifiable electrical work near water is certified, extraction is sized to prevent damp, and the whole room is tanked to protect the property below. The result is a hard-wearing, well-ventilated bathroom finished to suit the character of the EC1 home it serves.
In a stacked Old Street block, bathroom failures travel downward, so getting the waterproofing right is the whole job. GS Renovation tanks properly, respects the fixed drainage and ventilation of EC1 buildings, and coordinates access with the managing agent. Thirty years across Islington means bathrooms that stay dry, pass building control on their electrics and never trouble the flat below.
We loved working with George and Ibrahim and would highly recommend them. They have done splendid job on our new kitchen refurb which including new…
I am very happy to recommend George after he completed the work on my 2 bathrooms. He worked very hard to make sure everything was completed and even…
Saaid is the best craftsman I have worked with. He knows what he is doing from the very beginning. He has a great knowledge of construction…
FAQ
Usually the structural work and the making good, in that order. Steel, propping and the engineer's design account for the largest share of a bathroom renovation job at an EC1 address, and reinstating a modern and recently converted interior afterwards accounts for more than most people expect. The Islington Council fee is small by comparison. GS Renovation shows all three separately on the Old Street quotation. Ring 07472 424 226 and we will explain the balance at an EC1 property. As a rough guide, bathroom renovation in London ranges from roughly £6,000 to £20,000 or more (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.
The authority is not usually the bottleneck. What slows a bathroom renovation job at an EC1 address is discovering an application should have gone in weeks earlier, which is why GS Renovation handles it rather than leaving it with the Old Street homeowner. Inspections are attended on site. The paperwork is chased through to the Islington Council certificate you will need on sale. GS Renovation books and attends every inspection at the EC1 property across Islington.
Read them before you speak to us, ideally. The MyBuilder reviews describe how bathroom renovation projects actually ran, which is more useful to an Old Street homeowner than any claim we could make about the EC1 job. GS Renovation holds a 4.9 rating across 31 reviews. We will supply addresses too, so you can look at finished Islington work. Email info@gsrenovationltd.co.uk for details. Ask for EC1 addresses and visit a finished Islington job.
The freeholder's, almost always, plus building regulations for the electrics and drainage. Tanking and correct falls matter more in a flat, because the consequence of getting it wrong lands on the property below. We agree the specification with the managing agent before starting at EC1.
Not problems so much as variables, and they are manageable when found early. Bathroom renovation in an EC1 property of that age can meet irregular structure or earlier alterations, which is exactly what the Old Street survey is for. GS Renovation prices what is visible and names what is not. Anything discovered later is agreed in writing before we continue. Ask on 07472 424 226 what bathroom renovation at an EC1 address in Old Street actually involves in practice.
Full tanking is the answer. Before tiling, we bond a continuous waterproof membrane across the floor and walls and form correct falls to the drain, paying particular attention to thresholds in wet rooms. In an EC1 apartment block this protects the home beneath you and keeps the managing agent satisfied. We also certify the notifiable electrics and size the ventilation to prevent long-term damp.
Almost certainly, and we will confirm it in a minute rather than leave you guessing. GS Renovation covers Old Street and the EC1 area for bathroom renovation, along with neighbouring parts of Islington. Ring 07472 424 226 or email info@gsrenovationltd.co.uk with the EC1 address before you spend time on drawings. There is no charge for asking, and none for the survey either. We would rather tell you straight away than quote and hope. Small jobs are welcome at EC1 too.
Every Service, One Team
The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Old Street. Explore what else we do locally:
Same Service, Nearby Areas
We carry out bathroom renovation across Old Street and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for bathroom renovation in Old Street. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.