New Building. Home Improvement. Maintenance.

Are you planning to convert that extra loft space? Or, looking for a house extension? We are sure you want your dream house to become a reality. At AS Design & Build, we will help you with it without compromising the quality.

Do you want to incorporate the latest construction trend or add space to your home? We are a competitive contractor when it comes to home extensions. We pride ourselves for care and attention.

Yes, we take care of everything right from the plan, design, construction, to maintenance.

Residential Building

Our team of master builders can provide you with a range of building services for our residential clients. From complete property renovations through to complex house extensions.

Commercial Building

At AS Design & Build, we can work with all commercial clients, carrying out your plans to the letter and helping to keep your business operating as smoothly as possible.

General Maintenance

Our team can also provide their skills and knowledge to help maintain your property and keep it looking perfect throughout the year! We are the go-to team for all renovations and house extensions in Finchley.

Design & Planning

We will work with you to plan and design your new build project. The in-house team will handle everything for you, putting the plans forward to the local authorities.


Get in touch with our team of professionals to request some expert advice. Working in and around the London area, we provide a range of building and property maintenance services.  Using the very best tools and materials for the job, you won't find any better team than us!

Overall, we offer home extensions, house extensions, loft conversions and much more. Our builders service a number of areas of London, including Belsize Park, Brent Cross, Finchley, Hampstead, Highgate, St Johns Wood, Wembley and other areas of North London / North West London.

Contact our team on 07950 480 242 or 0208 936 7629 today!


Free Quotations

Every project begins by one of our professionals running through a few project ideas with you, providing you with a complete breakdown of the costs and giving you time to make your decision. From start to finish, our team are available to help.

Years Of Experience

Here at AS Design & Build, we have the experience and knowledge to help you with any building project that you have in mind. Our professionals are always ready and willing help you. From house extensions to loft conversions in Finchley, we can do it all!

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Quality Guarantee

All of our services and solutions are covered by a quality guarantee. This means if you aren't 100% confident with any aspect of the completed job, we will do everything we can to put it right. Our experts won't leave the site until you're completely satisfied.

About Our Company

Here at AS Design & Build, we can provide you with a range of different building services. Using only the finest tools and materials for all of our construction projects we are the only team to turn to.

Our team of professionals can provide you with the full package. From design and planning all the way through to construction and maintenance, we believe in making the entire process as simple and stress-free as possible. One of the ways that we do this is by keeping in close contact with you throughout the entire process, giving you as much or as little input as you would like. Over the years, we have become well-known and trusted for house extensions in Finchley.

House Extensions Finchley
Discuss Your Project Ideas.

Get in touch with our team today to talk about how we can help you and find out more about our services!

07950 480 242 or 0208 936 7629

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07950 480 242

0208 936 7629

Here at AS Design & Build we can provide you with a range of different property improvement and maintenance services. Always going above and beyond to provide our customers with the results they are looking for.

Why Us

Years Of Experience 

Price Competitive 

Free Quotations 

Design & Build

Property Maintenance

General Repairs


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