Builders in Islington
Renovations, extensions and structural work across Islington. Founder-led, with 30+ years' hands-on experience, fully insured, building control compliant.
- Steel beam over one opening: £1,500 to £4,000
- Rated 4.9 from 31 reviews on MyBuilder
- Free site survey, itemised quote
GS Renovation works across Islington, from the Georgian and Regency terraces around the Angel and Upper Street to the Victorian streets of Holloway and Highbury, the post-war estates between them and the warehouse conversions of Clerkenwell and Old Street. We cover N1, N4, N5, N7, N19 and EC1. Islington is dense, mostly flats and tightly controlled, and building here is as much about neighbours, notices and access as it is about the work itself.
The firm is run by Abdelaaziz Saaid, who has more than 30 years of hands-on experience on London properties. GS Renovation Ltd was incorporated in 2023 to formalise that trade. We are a building contractor with a structural specialism, which means we install the steel beams and take out the load-bearing walls ourselves rather than subcontracting the part of the job that carries the most risk. We are not structural engineers: on any structural work we appoint an independent engineer, build to their calculations and put the work in front of building control.
Islington's housing: flats and period terraces
Islington is a borough of flats. Of about 112,000 homes on the Valuation Office list, 85% are flats and only 15% houses. Half the stock was built after 1945, much of it council estates, and 43% before 1919: Georgian and early Victorian terraces and garden squares, later Victorian streets running north through Holloway and Highbury, and converted warehouses and workshops in Clerkenwell. Many of the period terraces were divided into flats at some point and some have been put back together again, which means the structure you find on site is rarely the structure the original builder left.
The work these houses need is different from suburban work. Lime plaster and soft brick do not behave like modern materials, and repairs done in cement and gypsum in the 1980s often caused the damp they were meant to cure. Lower ground floors need careful thought about ventilation and moisture rather than a plastic membrane. Original sash windows, cornices, panelled doors and shutters are usually worth restoring rather than replacing, and in a conservation area you may have no choice.
In a flat, the lease and the freeholder come before any drawing: structural work needs a licence to alter, and the managing agent sets working hours and delivery rules. In a house, the layout requests are consistent: opening the rear reception through to the kitchen, reinstating a knocked-about floor plan, forming a side return or rear extension at lower ground level, and adding a bathroom where a terrace was only ever built with one. On a terrace, every one of those touches a party wall.
- Full house refurbishments, rewiring, replumbing, heating, plastering and decoration
- Kitchen and bathroom installation, from strip out to final seal
- Steel beam (RSJ) installation and load-bearing wall removal
- Chimney breast removal with the stack above properly supported
- Rear, side return and double storey extensions
- Structural openings, new joists and supported alterations
- Building control notification, inspection and sign-off on all notifiable work
Islington Council, conservation and the Party Wall Act
Building control sits with Islington Council, or with a registered building control approver if you choose one. Notifiable work must be notified before it starts, inspected at the defined stages and certified on completion, and we make the application and book the inspections as part of the project.
Islington is heavily designated. The council lists 42 conservation areas and has removed some permitted development rights in 40 of them by Article 4 direction, so a house there needs planning permission for alterations such as replacing front windows and doors. The borough also has around 4,500 listed buildings. Listed building consent is separate from planning permission and covers internal work that affects the building's character, including removing walls and chimney breasts, and doing that work without consent is a criminal offence.
The Party Wall Act is close to unavoidable here. In a terrace, inserting a beam into the shared wall, removing a chimney breast built into it, or excavating near a neighbour's foundations all require formal notice, which you serve as building owner, and often a party wall award agreed between surveyors. We identify the requirement at quotation stage and give you the drawings and programme, because notice periods take time and a project planned without allowing for them stalls before it starts.
Building on an Islington street
Almost the whole borough is in a controlled parking zone, so materials deliveries, skips and trade parking all need planning. Skip permits and any suspended bay have to be arranged with the council in advance, and we build that into the programme rather than discovering it on day one.
Mid-terrace access means everything comes in and out through the house or the front door, which changes how a job is sequenced and how much protection goes down. Neighbours are close on both sides and often above and below, so we agree working hours, keep the frontage clean and give notice before the noisy stages. That is not a courtesy, it is what keeps a long project running smoothly on a street where everybody can hear it.
What building work costs in Islington
Islington is priced at London rates, and the ranges below are the ones we publish across the site so you can check any quotation against them. Every project is priced properly from a site survey, itemised, and with no obligation.
| Type of work | What it covers | Typical London cost |
|---|---|---|
| Steel beam over one opening | Beam, padstones, installation, building control. The engineer's fee sits in the knock-through figure | £1,500 to £4,000 |
| Full knock-through | Wall removal, beam, engineer's fee, propping and making good | £2,500 to £6,500+ |
| Chimney breast removal | One floor. A steel beam is the usual route; gallows brackets only where the engineer and building control accept them | £2,200 to £3,250 on a steel beam; £1,500 to £2,500 where brackets are accepted |
| Kitchen renovation, mid-range | Quality units, stone worktops, integrated appliances, new layout | £20,000 to £40,000 |
| Bathroom renovation, mid-range | Quality suite, porcelain tiling, new layout, heated rail | £7,500 to £12,000 |
| Full refurbishment, mid-range | Strip out, rewire, replumb, heating, kitchen, bathrooms, decoration | £1,500 to £2,200 per m² |
| Single storey extension | Standard finish, per m² of new floor area | £2,000 to £2,800 per m² |
Our services in Islington
Every service we offer has its own Islington page, with the detail specific to that trade and this borough.
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably priced quote. The work started on time and George worked really hard every day. There were…
George was a great find. The job required re-plastering the walls before fitting acrylic panels. He also re-plumbed the shower waste under the solid floor and then re-tiled the bathroom floor. He had to build a timber frame for a 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 came on a Sunday evening to finish the work...which shows how committed he is to…
FAQ
Frequently Asked Questions
Do you work on listed buildings and in Islington conservation areas?
Yes, and a large part of Islington is designated one or the other. Work to a listed building needs listed building consent, which is separate from planning permission and covers internal alterations such as removing walls or chimney breasts as well as external ones. Islington has removed some permitted development rights by Article 4 direction in 40 of its 42 conservation areas, so changes such as replacing front windows need planning permission there. We coordinate the applications with your designer and build to what is approved.
Does the Party Wall Act apply to my Islington terrace?
In most cases yes. Inserting a steel beam into a shared wall, removing a chimney breast built into it, or excavating near a neighbour's foundations all require formal notice under the Party Wall Act, which you serve as building owner, and often a party wall award agreed between surveyors. Notice periods take time, so we flag them at quotation stage rather than once the job is booked in.
Can you open up the ground floor of a Victorian terrace in Islington?
Yes. It usually means removing a load-bearing wall between the rear reception and the kitchen, which needs a steel beam sized by the structural engineer we appoint, temporary propping, building control sign-off and, where the beam bears into the party wall, a notice you serve as building owner. Structural openings in period terraces are our core work, so it is carried out by our own team rather than subcontracted.
How do you handle parking and skips in Islington?
Almost all of Islington is in a controlled parking zone, so skip permits and any suspended parking bay have to be arranged with the council in advance. We build that into the programme and organise it, along with delivery timing, so the project is not held up waiting for a permit.
What does renovation work cost in Islington?
Islington is priced at London rates. A steel beam over one opening runs £1,500 to £4,000, a full knock-through £2,500 to £6,500 or more, a mid-range bathroom £7,500 to £12,000, a mid-range kitchen £20,000 to £40,000, and a mid-range full refurbishment £1,500 to £2,200 per square metre. These are indicative London ranges from MyBuilder and Checkatrade, 2026. Period and listed properties usually warrant a larger contingency.
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