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RCB Design & Build Contractors

9.94/10

London

Checkatrade member since May 2025

Services

  • 3D Architectural Models
  • Architectural Drawings
  • Architectural Technician
  • Planning / Design
  • Planning Consultants
  • Technical Drawing

Customer Reviews

Write a review

9.94 /10

Based on 15 reviews over the past 12 months

Quality of work

10

Reliability

10

Communication

10

Reviews (112)

  • 10

    Exceptional quality, transparency, and care throughout

    Posted 5 days ago

    From start to finish, we couldn’t be happier with our experience. The team is incredibly thorough—every detail of the quote was clearly explained, giving us full confidence there’d be no surprise costs. The workmanship is excellent, and the quality of the finish shows how much they care. Anca (our project manager and co-owner along with her husband) regularly check in to ensure everything runs smoothly. Even with a toddler, the mess was minimal! We’re already planning to have them do the rest of the house!
    Verified reviewer
    Job location: BR5
  • 10

    Planning Application Submission in quick time and of top quality

    Posted 16 October

    RCB continues to impress with their professionalism, quality and promptness. Got them to do the planning application including the architect drawings after a disappointing experience with another architect. RCB turned out the drawing in no time and got everything right first time. They are all set to submit the planning application in less than a week. Pleased that I chose them. I am sure they will carry this superb work onto the rear extension as well.
    Verified reviewer
    Job location: SL2
  • 10

    Very helpful and friendly

    Posted 04 October

    Vasi was extremely helpful on the phone and although doesn't exactly do the types of jobs we were looking for was extremely friendly, help and offered some really useful advice of where to try and find the right type of handyman. Thank you
    Job location: SW11
  • 9

    Great communication

    Posted 26 September

    We have decided not to go ahead with our project but communication with Vasi and his team was excellent and highly professional. I would certainly consider hiring them for a future project.
    Verified reviewer
    Job location: SE13
  • Nicki S
    10

    Loft Extention and Renovation

    Posted 25 September

    Mr Vasi and his team are so far punctual with the tight timelines that had set, and I ma very greatfull to them for being in my corener in this process. We are only starting but so far its been a pleasure owrking with them =)
    Verified reviewer
    Job location: SW18
  • 10

    Top class service with no fuss

    Posted 24 September

    I am still in a very early stage of the rear extension but RCB has been really fantastic in giving their time to provide me with a quote and clarify a lot of questions I had. By far the most professional service I have come across in check a trade. They are truly a one stop solution (except finance) from planning application to completion covering entire life cycle of your project.
    Verified reviewer
    Job location: SL2

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

This trade passed up to 12 Checkatrade vetting checks

Member since May 2025

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