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RCB Design & Build Contractors

9.95/10

London

Checkatrade member since May 2025

Customer Reviews

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9.95 /10

Based on 8 reviews over the past 12 months

Quality of work

10

Reliability

10

Communication

10

Reviews (109)

  • 10

    Extension, loft,.full refurbishment internally and externally

    Posted 08 July

    Vasi and his team have been outstanding for support and professionalism . My previous experience on my project ( abandoned by a "buildler") has been quite devastating. However the support proactive attitude and professionalism of RCB group has been like no other. Despite us initially not going with them (big regret) they still came back and helped in whatever capacity was asked of them to assist in restarting our project. The whole team are superb , their workmanship, knowledge, advice and visions are exceptional...probably more than most clients even have in their minds!
    Job location: CR0
  • 10

    Side and rear extension with and Loft, with full internal and external rennovation

    Posted 07 July

    My Experience with RCB Group & Advice Sought I feel compelled to share my experience with RCB Group and Mr. Vasi, as I found myself in a situation that, in hindsight, could have been avoided had I chosen a contractor more wisely - if I had chosen RCB group !! Back in late 2023, I approached RCB as part of the tendering process for my home renovation. Due to personal circumstances, my project was put on hold, but when I revisited it in 2024, RCB were incredibly accommodating and responsive once again. Mr. Vasi and his team visited us and its clear his knowledge and enthusiasm, professionalis
    Job location: CR0
  • 9

    Whole flat renovation

    Posted 12 June

    Excellent communication and robust quotation provided by Vasi and Coleen. Met twice in person and a number of virtual meetings, as well as clear, concise and frequent whatsapps. Highly recommend and look forward to them conducting the work now.
    Job location: E9
  • 10

    Quoting for kitchen and bathroom refurbishment and new patio with steps

    Posted 02 June

    RCB have been so patient, responsive and professional in responding to our many detailed questions following up on their initial quote. Customer service so far is excellent.
    Verified reviewer
    Job location: E18
  • 10

    Good building contractors

    Posted 02 June

    We built a side return extension onto our Victorian house with RCB. From the first moment I spoke to the team I was reassured that they were interested in doing a good job. They are transparent with their charges. Vasi and the team really care about what your preferences are, they take feedback and care about their build quality. Unlike other builders the team on your site are focussed only only your project, rather than trying to balance a few at the same time. They are honest - Vasi realised at one point the build hadn't quite met the building regs requirements and he ensured that this was
    Verified reviewer
    Job location: SE21
  • 10

    Great job done

    Posted 01 June

    Thank you, Vasi, and your entire team for the excellent collaboration. Your professionalism, expertise, and dedication have made this project a success. It’s been a pleasure working with such a talented group, and I look forward to future opportunities to partner together.
    Job location: E15

Photos

Company Info

Owner

Mr Vasilica Juncanariu

Ltd Company

Member since 2025

VAT Registered

Yes: 210999791

Domestic WorkCommercial WorkFree EstimatesCards Accepted

Why Choose RCB – Residential, Commercial, Bespoke Construction Services?


Looking for a builder you can genuinely trust — one that turns plans into precision, and houses into homes?


Welcome to RCB, a fully insured, London-based Design & Build Principal Contractor, specializing in residential extensions, loft conversions, property refurbishments, HMO conversions, and bespoke renovation projects across Greater London and beyond.

We’re not just another building company.

We’re a professional construction partner — trusted by homeowners, landlords, and property investors for over 20 years.

Led by Vasi J., our senior management team brings over 60 years of combined professional experience in architecture, project management, building control, and quantity surveying. That means you get clarity, structure, and excellence from start to finish — no guesswork, no chaos.

What makes us different?

• We act as your principal contractor — managing all trades, suppliers, and compliance, so you don’t have to

• We give you remote CCTV access to monitor your project, even if you’re away or at work

• We offer in-house RIBA/ARB architect design, planning support, and drawings

• We provide detailed, transparent estimates from our QS team — no vague pricing

• We help with building regulations, planning submissions, and structural approvals

• We’re fully accredited by Checkatrade, FMB, TrustMark, and other trusted UK bodies

• We protect your investment with insurance, contracts (JCTs), schedules, and accountability

We don’t overpromise and underdeliver.

We don’t juggle too many jobs.

And we don’t believe in “builder’s talk.”

Instead, you get honest advice, regular updates, weekly check-ins, and a dedicated project manager who keeps everything moving forward with precision and care.


Still unsure?

Don’t just take our word for it.

Check our reviews. See our work. Ask us questions.

We welcome it — because we’re proud of the way we work.


🛡️ Whether you’re a first-time renovator or seasoned investor, with RCB you get structure, service, and results — delivered to British Standards, with clarity and care.

📞 Contact us today for a friendly, no-obligation consultation

🌐 Visit www.rcbgroup.co.uk to learn more or book your project review

📹 Follow us on social media and YouTube for real project videos and client feedback

RCB — Residential. Commercial. Bespoke.

Structure. Clarity. Accountability. That’s what we build.


Kind regards,

Vasi J. & the RCB Services Team

📞+44 7359 872594 | 🌐 www.rcbgroup.co.uk

Accreditations and awards

British Gypsum
British Gypsum
British Wood Flooring Association
British Wood Flooring Association
CHAS
CHAS
CITB
CITB
CITY & GUILDS
CITY & GUILDS
City & Guilds Qualified - Level 2
City & Guilds Qualified - Level 2
City & Guilds Qualified - Level 3
City & Guilds Qualified - Level 3
City & Guilds Qualified - Level 4
City & Guilds Qualified - Level 4
City & Guilds Qualified - Level 5
City & Guilds Qualified - Level 5
City & Guilds Qualified - Level 6
City & Guilds Qualified - Level 6
City & Guilds Qualified - Level 7
City & Guilds Qualified - Level 7
City & Guilds Qualified - Level 8
City & Guilds Qualified - Level 8
City and Guilds
City and Guilds
Constructionline
Constructionline
ContractorPlus
ContractorPlus
Cure It
Cure It
Dirtbusters - Approved Member
Dirtbusters - Approved Member
Dry Fusion
Dry Fusion
Dulux & Trustmark
Dulux & Trustmark
European Builders Federation
European Builders Federation
FLIR
FLIR
FMB LABC
FMB LABC
FSA
FSA
FairTrades
FairTrades
Freeview
Freeview
Glow Worm
Glow Worm
Greendeal Approved
Greendeal Approved
Greendeal Loft Insulation
Greendeal Loft Insulation
HomePro
HomePro
Houzz
Houzz
ISOQAR
ISOQAR
Ideal Accredited Installer
Ideal Accredited Installer
Institute Of Roofing
Institute Of Roofing
LABC
LABC
NVQ
NVQ
National Association of Drainage Contactors
National Association of Drainage Contactors
National Federation of Builders
National Federation of Builders
PROMPT Register
PROMPT Register
Polypipe Registerd Installer
Polypipe Registerd Installer
PowerFlush Association
PowerFlush Association
Quick Step
Quick Step
ROSPA
ROSPA
SIG Roofing One Warranty
SIG Roofing One Warranty
SSAIB CCTV Systems
SSAIB CCTV Systems
SSIP – Safety Systems in Procurement
SSIP – Safety Systems in Procurement
The Architectural Ironmongers
The Architectural Ironmongers
The Association of Professional Landscapers
The Association of Professional Landscapers
The Guild of Builders & Contractors
The Guild of Builders & Contractors
Triton
Triton
TrustMark Trading Standards
TrustMark Trading Standards
UKAS
UKAS
United Kingdom Asbestos Training Association
United Kingdom Asbestos Training Association
Velux Certified Installer
Velux Certified Installer
What Tradesmen
What Tradesmen
Worcester Bosch Group
Worcester Bosch Group
Worcester Bosch Registered Installer
Worcester Bosch Registered Installer
Yale Doormaster
Yale Doormaster

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Member since 2025

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