Full refurbishments and whole-house renovations in Marylebone. Trusted, professional, 30+ years' hands-on experience.
GS Renovation refurbishes whole flats and houses across Marylebone, giving the elegant mansion blocks and Georgian townhouses of W1 the services and layout that modern life needs. With over 30 years in Westminster, one team manages the structural work, rewiring, replumbing and finishes so a full renovation runs as a single, coordinated project.

The period flats behind Marylebone's red-brick facades often still carry decades-old wiring, tired pipework and layouts that split the space into small, dark rooms. We strip back and renew properly, rewiring to current standards, replumbing, replastering and reconfiguring the plan so hallways, reception rooms and bedrooms work for how the flat is actually lived in today.
Sequencing is everything in an occupied block. We run the first-fix electrics and plumbing, any steel and structural changes, then plastering, joinery, kitchens, bathrooms and decoration in the right order, so trades are not tripping over each other. Throughout, we work within the building's noise hours and the freeholder's conditions, protecting communal stairs and lifts as we go.
Marylebone's Georgian and Edwardian interiors carry cornicing, ceiling roses, panelled doors, sash windows and fireplaces that give the rooms their character. Where these survive we repair and restore them, and where they have been lost to earlier modernisation we can reinstate sympathetic profiles, balancing the period feel of the building against the insulation, sound reduction and heating a comfortable W1 home now expects.
A whole-house renovation is also the moment to improve comfort quietly. Between flats we can upgrade acoustic separation to reduce noise transfer, a common concern in purpose-built blocks, and we route new services thoughtfully so they disappear into the fabric. Notifiable electrical work is certified under building regulations, and we hand over the paperwork your freeholder and future buyer will want.
A Marylebone refurbishment involves many trades, a leaseholder's obligations and a live building around you. GS Renovation gives you one accountable team for the whole job, from first-fix services to the final coat, working within Westminster's building rules and the block's management. Our 30+ years mean tidy working, sensible sequencing and a finish that respects the period property.
Punctual, worked hard, and did exactly what he was asked and what he said he would do. Overall, a very high quality job. Will use again.
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
Really happy with the quality of remedial works carried out by George in putting other previous tradesman work right. He was very helpful, honest and…
FAQ
No. Home renovation is priced from scope, so a Marylebone home is not quoted higher than the same house over in Mayfair. Where costs do rise is in period stock and awkward access, both of which are checked at the W1 property. GS Renovation shows those as separate lines so you can see the reason. The W1 survey costs nothing and there is no obligation afterwards, in Marylebone or anywhere in Westminster. As a rough guide, home renovation in London ranges from roughly £40,000 to £150,000 or more for a full refurbishment (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 Marylebone property the home renovation programme names what happens each week, which trades are on site at W1, and when GS Renovation needs access. Where a mansion-block and period-flat building requires an extra step, we say so at the outset. That is easier for a Westminster household than explaining it midway through. Ring 07472 424 226 and we will talk through the sequence for a W1 home.
You get the scope in writing before anyone starts. The home renovation quotation for your Marylebone home lists structure, trades, approvals and making good, and the programme names the weeks and the Westminster City Council inspection points at W1. GS Renovation appoints and coordinates the structural engineer where the design needs one. Aftercare is a phone call to the same number, not a form. Ask on 07472 424 226 about Westminster aftercare. The five year guarantee on installations applies in Westminster too.
It depends what you touch. Rewiring is notifiable under Part P, structural alterations need building control approval and an engineer's design, and anything external in Marylebone may need planning. We map the consents for your W1 property at survey stage so nothing surfaces halfway through.
Comfortably. What home renovation demands in an older Marylebone home is investigation first, because aged materials and irregular dimensions change both method and programme at a W1 property. GS Renovation prices that from experience rather than guarding against it. Ring 07472 424 226 and we will talk through what your Westminster house is likely to need. The W1 survey is free, and the written Marylebone quotation for home renovation follows only a few days later.
Internal renovation does not need planning permission, but your lease almost certainly requires the freeholder's consent, and structural or notifiable electrical work must meet building regulations. We help you obtain the licence to alter, coordinate with the managing agent, and certify the regulated work, so the refurbishment is fully compliant with both your lease and the law.
Anywhere in the area, and there is no minimum job size. Home renovation enquiries reach GS Renovation from across Marylebone and Central London, and each gets a free survey at the W1 property and a written quotation afterwards. Building control is coordinated with Westminster City Council where the work requires it. Email info@gsrenovationltd.co.uk to get started. Nothing is owed whether you proceed or not. Small jobs at a W1 address are just as welcome here.
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 Marylebone. Explore what else we do locally:
Same Service, Nearby Areas
We carry out home renovation across Marylebone and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for home renovation in Marylebone. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.