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Construction Company London 

MB Master Builders Ltd. - The Best Construction Company for your New Home or House Extension Project

We are a family-run building company servicing London and Hertfordshire. We have been providing our clients with various types of services for over ten years. From building new homes to extensions of already existing houses or complete loft conversions - we deliver a high-end finish to every project. Our construction company works under fully insured conditions and with the accreditation of the Federation of Master Builders. Our partnership of experienced builders, award-winning architects and accomplished interior designers offers you a hassle-free approach to creating your perfect home. 

Construction Company North London - New Build Homes

New Homes Construction

We provide all the services you will need to build your dream home - including structural drawings, site preparation, construction, plumbing and electrical work and completion.

Construction Company London - House Extensions

House Extensions 

Have you ever thought about extending your living space? At MB Master Builders, we can provide you with all the services if you need a house extension in London or Hertfordshire.

Construction Company London - Loft Conversions

Loft Conversions

If a regular house extension is not an option for you due to space constraints or planning permission issues, you could consider having a velux or dormer loft conversion built instead. 

Why Choose MB Master Builders

Less Hassle

Our building company provides all the services you will need to complete your project - from the planning stage to the completion - which means less hassle for you.


Your project will be managed by one onsite manager for the whole duration, so you will always know whom to turn to should you have any questions or concerns.

Saving You Time

Having just one construction company to manage your entire project can save you time, so you can relax while our team takes care of all the aspects of the job.

Our Guarantee

We want you to enjoy your new bespoke living space without any worries, which is why we will provide you with a fifteen-year structural warranty for all our work.

Portfolio of our recently completed construction projects

At MB Master Builders Ltd., we are proud to showcase our portfolio for our future clients to see. Below you can see just a few examples of building projects completed by our skilled team. If you opt to hire us for your next project, you can rest assured that we will deliver results that will exceed your expectations. With more than ten years of field expertise and many satisfied clients, we are one of the best construction companies when it comes to design, building and renovation in North London and Hertfordshire.

Modern New House in Hertfordshire - Buit by MB Master Builders Construction Company North London

Large Modern New Build House in Bushey, Hertfordshire

Contemporary Rear House Extension in Barnet, North London

Contemporary Rear House Extension in Barnet, North London

Dormer Loft Conversion London built by Construction Company London

Dormer Loft Conversion in Mill Hill, North West London

Construction companies in London and Hertfordshire are often faced with an age-old question: "Should we extend and renovate or demolish and rebuild?" The truth is – there is no definitive answer. It all depends. If you’re reading information which does give a definitive answer take time to check the source. Does the company specialise in just new builds? Do they only complete loft conversions? At MB Master Builders Ltd., we carry out new builds, extensions and loft conversions, and that is why you can trust us to give you unbiased advice on what would be the best solution for you.

Contact Details

Call Us:  0208 200 2327


Our Office

Kingsbury House 
468 Church Lane