Extensions
Expand your current property and create more space
Building Extensions in Greater London
When your clients need more living space at home or are running out of commercial or production space, home extensions are the ideal solution.
With over 15 years of experience in building extensions in London, we have successfully delivered a wide range of projects, including:
Single-storey rear extensions
Double-storey and multi-storey house extensions
Kitchen extensions and open-plan layouts
Commercial property extensions
The additional floorspace not only creates a more spacious and functional place to live or work, but also significantly increases the property value.
W.A. Building System Ltd provides professional house extension services across Greater London, covering many London Boroughs, including EN6 (Potters Bar), NW10 (Willesden), EC1R (Farringdon), and N1 (Islington).
Why Choose WA Building System?
Comprehensive Project Management
From design to final finishing – we handle every stage of construction. You gain peace of mind knowing your project is in professional hands and progressing on schedule.
Modern Construction Technologies
We use innovative solutions that enhance durability, energy efficiency, and aesthetics. We build with the future in mind.
Experienced and Passionate Team
Our expert team knows the industry inside out. For us, every project is a mission, and your satisfaction is our top priority.
Hear it from our Clients
“
I’ve used Adam and his team for over 10 years for our personal and rental properties, I think that should tell you how happy I am with the quality of work and service.
There is huge piece of mind from having a builder that you know you can trust and also that you know will make time for you when emergencies do come up.
Highly recommended !!
Ricky
“
Adam and his team carried out the work as described, plus extras, on time and as quoted. They worked with care and consideration and were careful to leave the house clean and tidy at all times. A reliable team I would have back when any further work is required.
Sarah
“
Adam and his team provide a top-class service and they are extremely skilled in their respective fields. I have used WA Building for many years on large and small projects and have always been very impressed with their workmanship. They clean-up thoroughly when they have finished and never leave any trace that they have been on site. I cannot recommend them highly enough, whatever the job. Best workers I have ever had.
Thomas
“
Excellent building company, did great job on our extension, highly recommended the level of their work its the highest
Dorota
“
Is is pleasure dealing with WA building their response is fast sufficient. Their work are really professionally done.
Peter
Previous Extensions
View our previous extensions, or explore all of our previous projects.
“
Thanks to the knowledge and hands-on skills gained during the session, we are now even better equipped to deliver finishing projects of the highest quality — combining durability with outstanding aesthetics. Continuous development and superior craftsmanship are the cornerstones of our work.
”
Adam, Founder
Get Started In 3 Easy Steps
Looking to get started on your own extension project? It’s as easy as 1 2 3!
01
Get in Touch
Fill out your details in the form below
02
Get Your Free Quote
Based off your requirements, we'll build you a FREE bespoke quote
03
We'll Get Started
Work will begin on your new extension!
Send an Inquiry
Drop your details in the form below and a member of our team will be in touch shortly.
FAQ
Yes, WA Building System Ltd is fully insured company.
Yes, all WA Building System Ltd services, upon completion, come with a guarantee for peace of mind. However, we are confident that our work will outlast generations.
All of our services depend on project size and complexity. Upon an in-person evaluation of the property, we will be able to give you a more accurate timescale and ensure it meets your timings.
We advise to submit an application to the local authority at least 4 months before your ideal start date. The approval process usually takes 8 weeks, but you should allow between 6 to 8 weeks to prepare and submit plans.
It is certainly possible. However, it can be a complex process depending on the age, size, and design of the current extension. Typically, it is simpler and more cost-effective to demolish the old extension and rebuild it.
Yes, WA Building System Ltd is known for high quality and reliable end-to-end construction service. Our team consists of expert building specialists who possess the qualifications and experience to carry out all aspects of construction, refurbishment, and decoration.
At WA Building System Ltd, our team is trained to work all year round and in every weather condition – rain, hail, or shine. However, there are occasional exceptions on external works such as roofing and foundation when poor weather poses a safety risk to our team.
We understand it may be frustrating to be let down by another contractor, and WA Building System Ltd will always do our best to help you. We will take on any challenge, but would need to resurvey the project to ensure any works previously conducted by others were to the same high standard that we provide.
No, there is no minimum value requirement. We are passionate about what we do, and are happy to take on any job, no matter the shape or size. For more information, please get in touch with us at EMAIL, or get a quote using the form below.
As with any building works, there can be unexpected costs. Additional costs most often arise from customers changing design or material choices, or uncovering structural faults during the later stages of the project. However, we are transparent with our clients about these from start to finish, and communicate them as soon as possible to ensure you are fully informed.
Yes, we take pride in respecting all properties by removing any waste and, where possible, disposing of it in a sustainable way. We don’t just do this at the end of the project, but at the end of every working day.