A Renovation Company in London That Owns the Whole Result
Architects, structural engineers, surveying support and directly-employed trades under one roof — an established London renovation company that designs, engineers and builds your project on a single fixed-price contract. One team, one price, one point of accountability, from first brief to handover and the 12-month defects-rectification period under the JCT contract terms.
Across Prime London
No Hidden Cost-Plus
The Renovation Company That Carries the Risk
Most renovation projects go wrong in the gap between the people who design them and the people who build them. The architect draws a scheme, hands over a pack, and steps back; the builder prices it, finds it does not quite work or costs far more than expected, and the homeowner is left in the middle, paying for the difference and refereeing the blame. A design-and-build renovation company exists to close that gap entirely.
This page is about choosing a renovation company, renovation contractor or design-and-build firm — what to look for, and how we work. We are a single integrated studio: RIBA Chartered architects, MIStructE structural engineers, RICS-regulated chartered surveying through our sister practice, Hampstead Chartered Surveyors, MEP consultants, interior designers and our own directly-employed core build teams — all under one roof and one JCT fixed-price contract. The architect who designs your project walks the site every week. The estimator who priced your bill is the person you call when you want to change something. There is one company responsible from the first sketch to the last snag.
We renovate, refurbish, extend and convert — whole houses and flats, kitchens and bathrooms, lofts and basements — but the constant is the model. We resolve the design, the structure, the services and the cost before we start, price it as a single fixed sum, and deliver it with one accountable team. When something unexpected is found behind a wall, there is no one to pass it to, because there is only us. That is what a renovation company should mean.
We have delivered 106+ residential projects across NW3, NW8, NW1, SW1, SW3, SW7, W1 and W11 — Georgian townhouses, Victorian terraces, Edwardian villas, mansion flats and contemporary homes — with particular depth in the conservation areas and period housing where heritage and planning expertise matter most. If you are looking for the specific service rather than the company, our house renovation, refurbishment, extensions and loft conversion pages go into detail.
The reason this model matters is that a renovation is, financially and emotionally, one of the largest projects most people ever commission — and the construction industry is not short of cautionary tales. Budgets that drift, programmes that slip, contractors who disappear mid-job, and the slow, exhausting process of refereeing between a designer and a builder who each insist the problem belongs to the other. Almost all of it traces back to fragmented responsibility. When no single party owns the whole result, the homeowner owns it by default — including every gap, every assumption and every unforeseen cost. An integrated renovation company exists precisely to take that ownership off you.
It also changes the quality of the work itself, not just the management of it. Because our architects know what our build teams can deliver, our engineers know what the trades will be asked to install, and our estimators have priced a hundred similar projects nearby, the design that reaches site is one that can actually be built as drawn — rather than an elegant scheme that unravels the first time a wall is opened. Decisions that would bounce for weeks between separate firms are resolved in a single conversation. The result is a project that runs to programme, holds its price, and is finished to a standard that a disconnected team rarely achieves.
Below is how we work, why clients choose us, and the questions worth asking any renovation company before you commit your home and your budget to them.
A Renovation Company for Every Scope
From a single room to a whole-house transformation, the same integrated team and fixed-price model. These are the six areas of work we are asked for most.
House & Flat Renovation
Reconfiguring, modernising and transforming an entire home — layout, structure, services and finishes — delivered as one programme. Our house renovation service in full.
Refurbishment
Bringing a period property's condition and finish back to a coherent, high standard. Our house refurbishment and full refurbishment service.
Extensions
Rear, side-return, wrap-around and double-storey extensions, with the structural steel and open-plan work to match. Our house extensions service.
Loft & Basement
Reclaiming roof and lower-ground space — loft conversions, basements and cellar conversions — for the bedrooms and living space a house can gain without moving.
Kitchens & Bathrooms
Bespoke fitted kitchens and bathrooms, designed and built as part of a renovation or on their own — the rooms that most define a home.
Structural & Services
The work beneath the finishes — structural alterations, rewiring, plumbing, heating and insulation — that makes a renovation perform, not just look new.
What a Renovation Company Should Actually Do
The whole point of an integrated renovation company is that all of this sits with one team under one contract. Here is what that includes.
Architectural Design
RIBA Chartered architects developing the layout, the spatial planning and the detailed drawings in-house — not a separate practice handing over a pack and walking away.
Structural Engineering
MIStructE engineers producing the calculations and details for steel, openings, underpinning and floor strengthening, and the Building Control submission — all in-house.
Surveying & Compliance
RICS-regulated chartered surveying through our sister practice, Hampstead Chartered Surveyors — condition surveys, Party Wall awards and due diligence — alongside Building Control and planning coordination.
Planning & Approvals
Planning applications, Listed Building Consent and Lawful Development Certificates prepared and managed in-house, including the most restrictive conservation areas.
Fixed-Price Costing
The whole project priced as a single fixed sum before you commit, under a JCT contract — no open-ended cost-plus, no inflated provisional sums, no surprises.
Directly-Employed Trades
Our core carpenters, plumbers, electricians and decorators are PAYE staff, not gig labour — continuity of standard from one project to the next.
Project Management
A dedicated project manager and weekly written progress reporting with photography — so you always know where the project stands, on programme and on budget.
The Full Build
Strip-out, structure, first fix, plaster, second fix, kitchens, bathrooms, joinery, flooring and decoration — the entire build delivered by one accountable team.
Certified Services
Electrical work certified to BS 7671 and Gas Safe registered plumbing and gas — documented and compliant, not sub-let to an unknown trade.
Heritage Expertise
Deep experience with listed buildings and conservation areas — lime plaster, sash restoration, cornice reproduction — and the consents to alter them lawfully.
Insurance & Warranty
We hold £5M public liability, £10M employers' liability and contractors' all risks cover; certificates are available on request.
Concierge Aftercare
One free service visit at six months and a 24-hour line for live defects — the reason most of our clients return for a second project within five years.
Six Reasons Clients Choose Our Company
There are perhaps fifteen design-and-build practices in London delivering at this standard. Here is what makes us one of them.
One Accountable Team
Design, engineering and build under one roof and one contract — so there is never a gap to fall into, and one company is responsible for the whole result.
A Price That Holds
A single fixed price agreed before we start, under a JCT contract — you know the cost up front and are protected from cost-plus drift.
The Architect On Site
The RIBA Chartered architect who designed your project walks the site every week — decisions made in person, not lost in email between separate firms.
Our Own Trades
Directly-employed core trades mean continuity and a standard we control — not a rotating crew of the cheapest available sub-contractors.
Completed Projects
106+ completed projects, with references and reviews you can check.
Protected and Warranted
£5M public liability, £10M employers' liability and contractors' all risks cover and a 12-month defects period — the cover prime-London freeholders and serious clients expect from a renovation company.
Eight Stages, From Brief to Handover
We work to the RIBA Plan of Work 2020. Here is how a project runs with us, whatever its scale.
Brief & Free Consultation
An initial consultation at our studio or your home to understand what you want, talk realistic budgets and agree the broad shape of the brief. No charge, no obligation.
Survey & Feasibility
A measured survey, planning and structural review, and a written feasibility report with options, constraints and an outline cost band.
Design & 3D Visualisation
Concept directions developed and presented with plans and 3D walk-throughs, then refined to a single preferred design.
Planning & Building Regs
Any planning, Listed Building Consent or Lawful Development Certificate prepared and submitted, with Building Regulations in parallel.
Drawings & Specification
The full technical pack — structural calculations, M&E, finishes schedule and a written specification — that the build follows.
The Build
JCT contract signed, then the full build with weekly progress reports, weekly architect visits and monthly cost reports.
Snagging & Handover
Commissioning, a joint snagging walk, the certification pack and handover of your finished home.
Defects & Warranty
A 12-month defects-rectification period under the JCT contract terms and a service visit at six months.
Four Tiers, Honestly Drawn
A good renovation company is honest that cost follows specification. Here is how our four tiers differ — the same model, four standards of finish.
Where Your Budget Actually Goes
For a representative high-end whole-house renovation, here is the honest breakdown.
The Team Under One Roof
What makes us a renovation company rather than a builder is the range of disciplines we bring to every project.
Design & Architecture
- RIBA Chartered architects: spatial planning, drawings and detailing in-house
- Interior design: finishes, joinery and lighting schemes coordinated with the build
- 3D visualisation: photoreal CGIs so you see the result before committing
- Heritage design: conservation-led design for listed and period homes
Engineering & Surveying
- MIStructE engineers: calculations and details for steel, openings and foundations
- RICS surveying: condition surveys, Party Wall and due diligence via our sister practice, Hampstead Chartered Surveyors
- MEP: mechanical and electrical design coordinated with the architecture
- Building Control: submissions and inspections managed throughout
Construction
- Directly-employed core trades: carpenters, plumbers, electricians, decorators
- Framework specialists: long-term joinery, stone and heritage trades
- Certified: electrical work to BS 7671, Gas Safe plumbing and gas
- Project management: dedicated PM and weekly reporting
Commercial & Protection
- Fixed-price JCT contract: single sum, liquidated damages for late delivery
- Quantity surveying: cost control and transparent valuations
- We hold £5M public liability, £10M employers' liability and contractors' all risks cover; certificates are available on request.
- Warranty: 12-month defects period
A London Renovation Company Rooted in Its Patch
We work across prime London, with particular depth in the period housing and conservation areas of the north and centre.
Our studio is at 250 Finchley Road in NW3, and we work throughout prime London — NW3, NW8, NW1 and NW11; W1, W8 and W11; SW1, SW3 and SW7; N1 and N6; and the City. We have particular depth in the Georgian, Victorian and Edwardian housing and the conservation areas where heritage knowledge, planning relationships and careful workmanship matter most, and where a renovation company without that experience quickly comes unstuck.
Being rooted in a patch matters more than it sounds. It means the conservation officers know our practice, the local authorities know how we work, and the framework trades we rely on — lime plasterers, conservation joiners, stone specialists — are within a few miles of your home, with their previous work nearby for you to see. For projects further afield — Surrey, Buckinghamshire, the Cotswolds — we run a separate framework on request.
To see the breadth of what we do, browse our portfolio and case studies, read our client reviews, or learn more about the company. When you are ready to talk through a project, simply get in touch or use the cost calculator for an early budget.
A Whole-House Project, Week by Week
A representative build programme for a whole-house renovation. Yours will differ by scope, but this is how we run the construction phase.
What Sets Our Company Apart
The questions worth asking any renovation company — and our answers.
One Contract
Design, structure, services and build under a single JCT fixed-price contract — not a designer and a builder you must coordinate yourself.
Fixed Price
The cost agreed before we start, with liquidated damages for late delivery — we carry the risk of our pricing, not you.
Architect On Site
The architect who designed your project on site every week — decisions made in person.
Our Own Trades
Directly-employed core trades for continuity and a standard we control.
Heritage Depth
Successful consents and skilled craft across London's listed and conservation-area homes.
£5M public liability, £10M employers' liability and contractors' all risks cover
Confirmed in writing before the contract is signed.
12-Month Defects Period
A defects period covering workmanship after completion.
Clients Who Return
Most of our clients come back for a second project within five years — the clearest verdict on a renovation company.
Explore What We Deliver
The renovation company behind every one of these services. Start with the one you have in mind, or speak to us about the whole project.
House Renovation
Whole-house renovation — layout, structure, services and finishes as one programme.
House Refurbishment
Restoration-led gut-to-finish refurbishment of period homes.
Design & Build
The single-contract model behind everything we do.
House Extensions
Rear, side-return, wrap-around and double-storey extensions.
Loft Conversions
Reclaiming roof space for bedrooms and suites.
Kitchen Renovation
Bespoke kitchens, designed and built in-house.
Full Refurbishment
Complete, whole-property refurbishment programmes.
Refurbishment Company
The same integrated company, refurbishment-focused.
Our Work Speaks for the Company
The clearest measure of a renovation company is its completed work. Browse the case-study hub, the wider portfolio and our client reviews.
Victorian Townhouse, Maida Vale
A four-storey townhouse renovated end to end — structure, services, kitchen and three bathrooms.
View case study →Belsize Park Gardens, NW3
Five-storey period house: full programme with basement, extension and loft works.
View case study →What Our Clients Say
Read genuine reviews from clients across our completed projects.
Read reviews →More Completed Projects
Browse the full portfolio of renovations, extensions and refurbishments across London.
View portfolio →Detailed Answers to the Questions That Matter
What does a renovation company do?
What is the difference between a renovation company and a builder?
Why use a design-and-build renovation company?
How much do your renovations cost?
Are you insured and certified?
Do you work across London?
Do you handle planning, structural and party wall?
How do you price — fixed price or cost-plus?
How long does a renovation take?
How do I choose a good renovation company?
What Our Clients Say
“I would like to thank Ross and his team for their consistent commitment to quality and their unerring reliability. They delivered our property to specification and on time, proving to be an extremely effective, experienced, and proactive contractor.”
“We have worked with Ross and his company many times. They are extremely professional and hardworking individuals who can work under any circumstances. There was no variation to the works.”
Work With a Renovation Company You Can Trust
Book a no-obligation consultation at our Finchley Road design studio or in your home. The first meeting is free, lasts 60–90 minutes, and concludes with an honest indication of feasibility, programme and budget band. No salespeople. No pressure.
Free Renovation Consultation
Site visit · feasibility assessment · outline cost estimate · programme indication. No obligation. Saturday appointments available.
Recent work from named London projects
Photographs linked to their published project records.