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Reliable Basement Contractors London

Unmatched Expertise

We bring years of specialized experience in basement building and renovation. Our expert team keeps up with the latest industry standards to ensure durable and attractive results. .

Customized Solutions

We offer personalized basement solutions to meet your specific needs. From design to completion, we work closely with you to achieve your vision. .

Transparent Pricing

Our pricing is straightforward and transparent. We provide detailed estimates without hidden fees, making it easy for you to plan your budget.

Best Customer Service

Customer satisfaction is our priority. We offer friendly, professional service throughout your project, making sure you're always in the loop.


Our Basement Specialists London
Will Perform

Whether you're interested in basement construction, renovation, or excavation, our specialized teams have you covered. With a focus on quality and customer satisfaction, we're the basement specialist London residents rely on for transformative solutions. Explore our services to see how we can make your basement dreams a reality.

Basement Conversion

Building a basement in London can eliminate gym commutes, saving you time and money with a home fitness center. Our contractors can equip your space with everything from mirrors to gym stations. We will help transform your home!

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Basement Excavation

For top-notch basement excavation, trust our skilled basement contractors London team. We handle the digging process with precision, ensuring a solid foundation for your project. Choose us, your reliable London basement company!.

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Basement Construction

As top basement contractors London, we excel in creating high-quality, durable basements. Our basement specialist London team brings your vision to life. Choose us as your go-to London basement company for unmatched quality and service.

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Basement Renovation

In London, many basements are spacious enough for a pool or ping-pong table. These areas can also serve as dedicated gaming rooms, complete with a big-screen TV and storage. If your renovated basement has sound-dampening walls!

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People Rated Our Basement Contractors London

L Shape Extension Ltd. is the perfect company for anyone in London looking for a high-quality basement conversion. The team is very experienced and knowledgeable about repairing old buildings, as well as building new ones. Their focus on style, quality and safety is evident in all of their work, and their promise of guaranteed service and warranties for all jobs is very reassuring
Julia BishopJulia Bishop
17:47 29 Mar 23
I recently had a house extension built and I'm so pleased with the results. The team were professional and worked hard to complete the project on time. They kept me informed and checked I was happy with the progress at every stage. The quality of the work was excellent, the price was great and I love the end result. I'd highly recommend them to anyone looking to extend their home.
Patrick HughesPatrick Hughes
14:44 26 Mar 23
Our family was in desperate need of additional living space and we decided to convert our basement into a guest suite. The construction team were professional, efficient, and kept us informed throughout the entire process. The end result was a beautiful space that has made our home more comfortable and able to accommodate guests.
Elatserge SergeElatserge Serge
20:07 24 Mar 23
I was very impressed with the professionalism and expertise of L Shape Extension Ltd. throughout my extension project. They were able to seamlessly blend the new extension with the existing structure, and the finished product is both beautiful and functional. The team was very responsive to my needs throughout the entire process, and I would definitely use them again in future projects!
Kusiima SusanKusiima Susan
04:17 19 Mar 23
I had a great experience working with my basement builders. From start to finish, they were responsive, communicative, and attentive to my needs. They took the time to understand what I wanted for the space and made sure that every detail was perfect. The team was reliable and professional, and the end result exceeded my expectations. I would definitely use them again for any future projects.
Loman ButlerLoman Butler
19:20 02 Mar 23
I recently had an L-shaped kitchen extension built and I am extremely satisfied with the result. The additional space has allowed me to have a larger dining area and a better functional kitchen. The light that flows in has made it bright and welcoming. The design is modern and sleek, and the materials used are of high quality. The construction was without any problems. I highly recommend this extension to anyone looking to enhance their living space.
Charles WilsonCharles Wilson
16:42 27 Feb 23
I had my basement refurbished, the team was professional, efficient and paid attention to my specific requests. They transformed my dark and dingy basement into a bright and functional new room that my family can now enjoy. The quality of their work exceeded my expectations and they were able to complete the project on time and within budget. I highly recommend this company for any basement refurbishment needs.
Fredrick RichardsFredrick Richards
17:00 24 Feb 23
I have just had a rear extension built on my home and I couldn't be happier with the results. The builders were professional and efficient, completing the project in good time with minimal disruption to my daily routine. The finished extension is fantastic and provides much needed extra space for my family. The quality of the workmanship is excellent and can be seen in the attention to detail and the overall appeal of the extension. I highly recommend this company.
Michael StevensonMichael Stevenson
08:09 05 Feb 23
We highly recommend these guys for basement finishing. They finished our basement 6 months ago and it has provided us with fantastic extra living space. The work was carried out professionally, the team were reliable and very good at what they do! Everything came in on budget. The workmanship is to a very high standard.!!
Sebastian SantosSebastian Santos
18:56 01 Feb 23
Our basement was converted into a home office, we were given detailed advice and we were walked through what the job would entail. We are really pleased with the final result and would definitely use this company again. We highly recommend them..
Jason PerezJason Perez
18:18 24 Jan 23
My basement renovation is absolutely perfect, better than I could imagine. Thank you!
Jose BanksJose Banks
09:19 12 Jan 23
We highly recommend this basement company and their professional basement contractors. They were skilled and really knowledgeable, in local building regulations as well as basement construction. Their electrician and plumber were also very professional and knew what they were doing.
Bear GrlIzBear GrlIz
18:59 17 Feb 22
My recent basement excavation work was seamless thanks to these wonderful basement contractors in London, professional and efficient from start to finish, a wonderful company to work with.

Contact Us

Tell us about your upcoming project and we will go with you through the process of planning and estimating. For free.


Basement Company London Explains

We realize that embarking on a basement project can come with its own set of questions and concerns. As the leading basement specialist in London, we're committed to ensuring you're well-informed every step of the way. Our aim with this FAQ section is to provide answers to some of the most frequently asked questions we encounter. Whether you're considering basement construction, excavation, or renovation, we've got you covered. Here, you'll find essential information that will help guide you through the planning and execution phases of your project, making your experience as smooth as possible. Browse through these questions and answers to get a clearer understanding of how we operate and what you can expect when you choose us as your go-to basement company in London.

What services do Basement Contractors London offer?

We offer a range of services including basement construction, renovation, and excavation, tailored to meet your specific needs.

How do I start the basement construction process with your company?

Simply contact us for an initial consultation. Our basement specialist London team will assess your space and provide a detailed estimate.

Are you a licensed and insured basement company London?

Yes, we are fully licensed and insured, adhering to all industry standards to ensure a safe and high-quality result.

How long does a typical basement excavation take?

The timeline can vary depending on the project’s complexity. However, we aim to complete all excavation tasks efficiently while maintaining quality.

What measures do you take for safety during construction?

As responsible basement contractors in London, we adhere to strict safety guidelines, including protective gear and equipment inspections, to ensure a safe work environment.

Can you work with specific designs or themes for basement renovation?

Absolutely. Our team collaborates closely with you to ensure your vision becomes a reality, making us the basement company London residents trust for personalized solutions.

How do you handle unforeseen challenges during the construction process?

Our experienced basement specialist London team is trained to adapt to any unexpected situations, ensuring that your project remains on track and within budget.


What Our Basement Contractors London Include in Every Project

Free Initial Consultation

We offer a free basement construction London site survey to homeowners to understand your requirements and budget.

Design Concept

Our basement construction London designers will produce 3D drawings to bring your ideas to life.

Planning Permission

When building a basement London, our planning consultants will take care of all planning applications to get your project moving quickly.

Design Approval

After obtaining planning permission, the next step is to get your basement design plans approved.

Party Wall Act

Our Party Wall surveyors will work to agree basement building London terms with neighboring properties.

Structural Evaluation

Our experienced basement construction London surveyors will provide all necessary structural calculations.

Interior Styling

We work with dedicated basement construction London partners to bring clients the very latest in basement design, styling and innovation.

The Build

When building a basement London, our dedicated project manager will work with you at every stage to keep you fully informed of progress and ensure minimal disruption to the rest of your home.


Are You Looking For Basement Contractors London?

Longevity and Adaptability in Basement Conversion

How long do you plan to stay in your home, do you anticipate lifestyle changes, like the need for an in-law apartment or dedicated space for young adults that a basement construction London could deliver to your property?.

Demographics of Basement Users

Thinking about building a basement London, who will be using the space, children, teenagers and/or adults?

Functional Objectives for Basement Conversion

How will the new basement construction London space be used? Is your basement construction London designed for extra storage, a new living area, recreational use or entertainment space?

Lifestyle Alignment with Basement Design

What is your lifestyle? Are you active, a homebody, a hobby enthusiast, a fitness buff? Do you entertain often and who does this impact what your basement builder London needs to do?

Design Aesthetics and Theme for Basement Conversion

What is your design style for your basement construction London, do you want your basement to feel like an extension of the upstairs, or do you want our basement contractors to create a unique space?

Bathroom Amenities in Basement Conversion

Is there a bathroom now, or do you plan to add one in your basement construction London? Are you considering a functional bathroom or a luxury spa-like room? Where would you place the bathroom during the basement excavation London?

Structural Considerations in Basement Conversion

Do you think structural modification will be required for what you have in mind? Do you need to knock down walls? Build walls or other dividers for your new basement construction London project?

Storage Solutions in Basement Conversion

What are your storage needs when thinking about basement construction London? Would you like a place to properly store your wine collection or do you need to store extra household items year-round or outdoor furnishings during the winter?

Connectivity and Access in Basement Conversion

What kind of connecting spaces will require remodeling or refinishing? Stairways, hallways, access to other areas or rooms, another thing to consider with our basement contractors London when building a basement.