GC Interiors began in 1978 when Gareth Chalmers opened a specialist kitchen and bathroom company in Oxford. Forty-seven years later, what started as a focused KBB studio has grown — quietly and steadily — into a full-service luxury interiors and construction business.
Today our in-house team of designers, project managers and trades handles every part of a project: architectural drawings, planning, building regulations, full installation, and an aftercare service we are genuinely proud of. Bespoke kitchens, bathrooms, bedrooms, home offices, wine cellars, boot rooms, outdoor kitchens and entire new builds — all overseen seamlessly under one roof.
Clients come back. Sometimes 25 years later. And Gareth still recognises them. That, more than anything, is the measure of what we do.
From a single bespoke kitchen to a fully managed new build, we deliver every project entirely in-house — designers, project managers, trades and aftercare.
Bespoke luxury kitchens by Schuller, next125, Callerton and Dansani — with Miele, BORA, NEFF, Siemens, Bosch and Fisher & Paykel appliances.
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Statement ensuites, family bathrooms and elegant cloakrooms with Matki, Keuco, Villeroy & Boch, Hansgrohe, VADO and Utopia.
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Bespoke bedroom furniture, walk-in dressing rooms and tailored home offices — designed around how you actually live and work.
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Year-round outdoor kitchens, entertaining spaces and full landscaping — designed and built to the same standard as our interiors.
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Full new build homes throughout Oxfordshire — architectural drawings, planning, building regulations and construction managed entirely in-house.
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Full home refurbishments and renovations — period properties, modern homes and everything in between, with one team responsible from start to finish.
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Specialist wine cellar design and installation in partnership with Spiral Cellars — a striking feature for any home, designed to last generations.
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Bespoke boot rooms designed for real Oxfordshire life — country muck, wet dogs, gardening kit. Beautifully organised, properly built to last.
View Service →"Purchased original kitchen 25 years ago from Gareth, came back again now after moving house and we were so surprised when Gareth recognised us. We are very grateful Gareth for the end result."
— Mr & Mrs Sinclair, Oxford
A 47-year track record. An entirely in-house team. And the quiet confidence of a family business that does what it says.
No subcontracted unknowns. From the first design sketch to the final handover, every project is delivered by people who work for GC Interiors — and answer to Gareth directly.
We provide all architectural drawings and manage building regulations and building control ourselves. One point of contact. One team responsible for the whole project.
Founded by Gareth Chalmers in 1978 and still personally led by him today. Forty-seven years of trading in Oxford means we have nowhere to hide — and no reason to.
Schuller, next125, Miele, BORA, Matki, Keuco, Villeroy & Boch, Hansgrohe, Caesarstone, Spiral Cellars and more. Genuine luxury — properly specified, properly installed.
The reason 25-year-old clients still come back is simple: when something needs looking at, we look at it. Aftercare is part of the relationship, not an afterthought.
Visit our showroom at 146 Cumnor Hill, Oxford — relocated and expanded in 2018 — to experience the brands, finishes and craftsmanship in person before we begin.












































In 47 years, our reputation has been built on word of mouth, repeat clients and recommendations — not advertising.
"Purchased original kitchen 25 years ago from Gareth, came back again now after moving house and we were so surprised when Gareth recognised us. We were surprised after all these years he had not lost his touch. We are very grateful Gareth for the end result."
"Very professional from start to finish. Chris' ideas were inspirational and so different from the other plans we obtained. The finished kitchen exceeded our expectations and everybody admires it. Thank you once again Chris — I will recommend you to all my friends and family."
"Excellent design service. The team knew what we wanted straight away and produced designs that were not matched by any of the other bathroom services we looked at. The workmanship was fantastic and the whole operation ran seamlessly. Would recommend GC Interiors to absolutely anybody."
Visit our Cumnor Hill showroom, give us a call, or fill in the form. Whichever you prefer — we look forward to hearing about your project.
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Relocated and expanded in 2018, our Cumnor Hill showroom is the best place to experience the brands, finishes and craftsmanship of GC Interiors in person. Walk in or book an appointment — we'd love to meet you.