Open-plan kitchen, diner and living conversions in Hayes. Trusted, professional, 30+ years' hands-on experience.
GS Renovation creates open-plan spaces in Hayes homes, opening up UB3's 1930s semis and interwar houses into bright kitchen-diners and connected living areas. With more than 30 years of structural work in Hillingdon, we handle the knock-throughs, the steelwork and the sign-offs that turn compartmented interwar rooms into modern family space.

Interwar houses in Hayes were designed as a series of separate rooms, a front reception, a rear dining room and a small kitchen, connected by narrow doorways. Owners across UB3 increasingly want these opened into a single kitchen-diner or a through-lounge that makes the most of the generous rear plots. Because the wall between them usually carries the floor above, a knock-through here is genuine structural work.
We open these homes up in different ways to suit the house and the way you live. A full knock-through with a flush steel beam gives a clean, uninterrupted room; a broken-plan approach keeps zones loosely defined; and Crittall-style glazed dividers let light flow through while retaining a degree of separation. Whichever route suits your Hayes home, a structural engineer sizes the beam and specifies its bearings first.
The heart of an open-plan conversion is the steel beam that replaces the removed wall. The engineer sizes it for the loads it carries, it bears onto padstones at each end, and we install it by propping the floor above, taking the wall down in stages and bedding the steel securely before the props come out. Done properly, the finished ceiling runs flush with no visible downstand.
Open-plan work in Hayes is controlled under the Building Regulations, so Hillingdon Council's building control inspects and certifies the beam and its bearings; it does not need planning permission unless the house is listed or in a conservation area. Where the beam bears onto the party wall shared with an attached neighbour, the Party Wall Act applies and you serve notice first, then deliver the whole conversion as one accountable team.
Hayes homeowners choose GS Renovation for open-plan conversions because we join great design to sound structure. One team handles the engineer's beam design on attached neighbours, Hillingdon building control and the full build, with careful propping and tidy working in your home, and 30+ years of experience opening up UB3's interwar houses.
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…
It's the second time I have hired George and he has been absolutely professional and the work he did resembles perfectly what I had in mind. Being an…
Very friendly and I am very pleased with the work he has done, also very clean worker and enthusiastic about his work. Can not fault this company!!!!…
FAQ
There is no going rate worth quoting, because scope varies more than the market does. A simple open-plan conversion job near UB3 and a complicated one elsewhere in Hayes are different pieces of work. GS Renovation surveys and prices each on its merits, with the Hillingdon Council element shown separately. Ring 07472 424 226 for an honest steer on your 1930s and interwar property, or email info@gsrenovationltd.co.uk with the UB3 address and we will book a free survey. As a rough guide, open-plan conversion in London typically costs from roughly £3,000 to £8,000 or more, including the steel beam and finishing (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.
It is set out stage by stage before anything starts. For a Hayes property the open-plan conversion programme names what happens each week, which trades are on site at UB3, and when GS Renovation needs access. Where a 1930s and interwar building requires an extra step, we say so at the outset. That is easier for a Hillingdon household than explaining it midway through. Ring 07472 424 226 and we will talk through the sequence for a UB3 home.
Independent evidence, in three forms. There is the Hillingdon Council completion certificate for the open-plan conversion work at UB3, the engineer's design that the structure was built to, and 31 public MyBuilder reviews behind our 4.9 rating. GS Renovation will also give a Hayes homeowner addresses of finished projects in Hillingdon. Seeing the work in person tells you more than any brochure. Ring 07472 424 226 to arrange it. Ask for the Hillingdon addresses and go and look.
Where the dividing walls are non-structural partitions, usually yes, but the lease and the freeholder's licence to alter come first. In a UB3 flat we confirm with an engineer what is carrying load before agreeing any layout.
Rushing the investigation to save a few days. Everything difficult about open-plan conversion in a 1930s and interwar Hayes house is manageable if it is found at the UB3 survey and priced honestly, and expensive if it is found on site. GS Renovation takes the time first. That is why our fixed prices across Hillingdon tend to stay fixed. Email info@gsrenovationltd.co.uk and we will explain what the UB3 survey checks before open-plan conversion is priced.
Usually, yes. In most Hayes interwar homes the steel beam can be sized to sit up within the floor zone so the finished ceiling runs flush with no downstand hanging below. The structural engineer confirms this when sizing the beam for your specific openings and loads, and Hillingdon building control signs off the completed installation.
Almost certainly. The open-plan conversion patch extends well beyond Hayes and the UB3 area, and what matters is whether GS Renovation can survey the property, run the programme and return for aftercare properly. Most of Hillingdon and the surrounding West London qualifies. Email info@gsrenovationltd.co.uk with the address and we will give you a straight answer. Nothing is owed for the UB3 visit either way. Snagging afterwards is handled by exactly the same team that actually built it.
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 Hayes. Explore what else we do locally:
Same Service, Nearby Areas
We carry out open-plan conversion across Hayes and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for open-plan conversion in Hayes. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.