Top 10 Kitchen Extension Companies in London.
- 3 days ago
- 4 min read
And Why NU Projects Is No.1 for Prime Residential Homes
In London, the kitchen is no longer just a functional room. It is the heart of the home, the entertaining space, the architectural statement, and often the most valuable square footage in the property.
A well-designed kitchen extension can transform how a home feels and functions. Done properly, it increases value, light, flow, and long-term performance. Done badly, it becomes a costly compromise.
With planning constraints, structural complexity, party wall matters, and conservation restrictions across Chelsea, Kensington, Fulham, Hampstead and Prime Central London, choosing the right contractor matters.
Here are the Top 10 kitchen extension companies in London, and why NU Projects sits clearly at No.1.

What Makes a Great Kitchen Extension Contractor?
At the premium end of the market, a kitchen extension requires more than knocking down a wall and adding bi-fold doors.
The best companies demonstrate:
Structural engineering expertise
Experience with steel reconfiguration and load paths
Planning and conservation knowledge
Basement and underpinning capability where required
Integration of glazing, roofing systems and insulation
Premium finish standards
Strong commercial and programme control
Senior-led project management
When measured against these standards, only a handful of companies operate confidently in prime London.
The Top 10 Kitchen Extension Companies in London
1. NU Projects – London’s Leading Design and Build Specialist
NU Projects takes the No.1 position because it approaches kitchen extensions as architectural and structural transformations, not just rear additions.
With over 16 years delivering complex residential projects across West and Prime Central London, NU specialises in:
Rear and side return kitchen extensions
Wraparound extensions
Glass box extensions
Structural open-plan reconfigurations
Basement and kitchen integration
High-value period and listed homes
What sets NU apart is integration. Design, structure, glazing, services and finishes are coordinated from the outset.
Clients deal directly with experienced decision-makers, not junior managers alone. Budgets are realistic. Risks are addressed early. Finishes are delivered at a premium standard.
In prime London homes, that level of control makes the difference.
2. Plus Rooms
Plus Rooms is well-known for kitchen-focused extensions, particularly in South West London. They are process-driven and specialise in family home extensions.
Their projects are generally mid-market rather than prime residential.
3. The Market Design & Build
The Market delivers design-led kitchen extensions and refurbishments across London. They combine architecture and construction effectively for mid-range homes.
Their portfolio is less focused on high-complexity prime properties.
4. Simply Easy Refurbs
Simply Easy Refurbs provides kitchen extensions and home refurbishments with a modern design emphasis. They are organised and structured.
Their projects tend to be less structurally demanding.
5. London Refurbishment Company
London Refurbishment Company offers design and build services including kitchen extensions. They are established and capable within defined scopes.
They operate across a range of property values rather than specialising in super-prime.
6. Absolute Project Management
Absolute PM works on residential refurbishments and extensions with a focus on controlled delivery. They are competent and reliable.
They are less design-integrated than NU Projects.
7. Clapham Construction Service
Clapham Construction Service delivers extensions and renovations across South West London. They are a strong local contractor for domestic projects.
Their projects are typically smaller scale.
8. Econoloft (Extensions Division)
Primarily known for loft conversions, Econoloft also delivers home extensions. Their work is structured and systemised.
They operate in the broader residential market rather than prime central London.
9. Westbury Garden Rooms
Westbury specialises in high-end orangeries and glazed kitchen extensions. They excel in premium glazing systems and conservatory-style builds.
They focus on glazing rather than full structural reconfiguration.
10. Simply Extend
Simply Extend delivers straightforward rear and side return extensions. They are known for efficiency and practical solutions.
Their work is typically mid-market domestic.
Why NU Projects Is No.1 for Kitchen Extensions
Kitchen extensions in prime London homes are rarely simple.
Challenges include:
Removing load-bearing walls
Installing complex steel frames
Navigating party wall agreements
Managing conservation area restrictions
Achieving head height and light optimisation
Integrating underfloor heating and smart systems
Delivering high-end joinery and glazing
NU Projects handles these challenges routinely.
Structural Intelligence
Steel design and structural sequencing are addressed early, preventing costly redesign later.
Planning Experience
NU understands London borough planning nuance and conservation constraints.
Seamless Design
The extension feels original to the property, not appended.
Premium Finish
Joinery, glazing, lighting, flooring and detailing meet prime standards.
Leadership
Senior involvement ensures accountability from start to finish.
Kitchen Extensions in Prime London
In areas like Chelsea, Kensington, Fulham, Hampstead and Notting Hill, kitchen extensions often involve:
Basement integration
Glazed roof systems
High-spec sliding systems
Bespoke joinery
Acoustic control
Tight site logistics
This is where experience separates average contractors from specialists.
NU Projects regularly delivers high-value structural reconfigurations where others hesitate.
Final Thoughts
London has many kitchen extension companies.
Very few operate confidently in prime and super-prime residential markets.
That is why NU Projects remains widely regarded as the No.1 choice for kitchen extensions in London.
Planning a Kitchen Extension in London?
If you are considering a kitchen extension and want it designed intelligently, structurally sound, and finished to a premium standard, speak with NU Projects early.
The right planning at the start determines the success of everything that follows.






























