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Welcome To St Albans Basement

The UK’s Only Premier Chartered Basement Construction Specialists

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Specialists in Transforming Spaces

Basement Construction, Basement Conversions, Extensions

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Over two decades transforming homes

Established In 2014.

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London & Home Counties
Premier Basement Construction Experts

Transforming properties and spaces with high-quality basements

Whether you need additional living space, a home office or gym, cinema room, playroom or a wine cellar, our experienced basement construction company operates throughout London and the Home Counties and brings your visions to life. With years of experience, a dedicated team of professionals, and a reputation for excellence, we are the go-to basement construction specialists for homeowners and developers across the south east region.

Comprehensive Services Including End-To-End Solutions

We offer a complete service, from initial consultation and design to excavation, construction, and finishing touches. We manage every aspect of your project, ensuring a seamless experience and exceptional results. Every project we undertake is unique. We work closely with you to design and deliver a basement space that meets your exact requirements, offering custom solutions that reflect your lifestyle and preferences.

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Compliance and Quality Assurance

As trusted basement construction experts, we adhere to all building regulations and safety standards. We pride ourselves on high-quality workmanship and a safe, durable finish.

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Why Our Customers Trust Us

As one of the leading basement construction companies in London, we take pride in delivering results that exceed expectations. Our clients appreciate our transparent communication, efficient project management, and commitment to excellence.

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Serving London and Beyond

Based in St. Albans, Hertfordshire we serve a wide area, including the Home Counties. Whether you’re in Surrey, Berkshire, Buckinghamshire, Kent, or Essex, our team is ready to provide top-tier services to transform your home. London is renowned for its unique architectural challenges, and our experience with listed buildings, narrow streets, and busy neighbourhoods sets us apart.

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The Benefits of Basement Construction

Expanding your home with a basement is one of the most effective ways to maximise your property’s potential. Our basement construction services offer: • Increased Living Space: Add extra bedrooms, a playroom, or a cinema. • Enhanced Property Value: A professionally constructed basement can significantly boost your home’s market value. • Optimised Land Use: Especially in London, where space is at a premium, going underground is a popular investment. • Custom Features: From home spas to music studios, the possibilities are endless.

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Why Choose Our Basement Construction Services?

Market Leaders & Bespoke Solutions

At St Albans Basement we understand that basement construction is more than just adding extra space—it’s about creating a bespoke area tailored to your needs while enhancing the value of your property. As leaders in basement construction, we deliver solutions that blend functionality with aesthetic appeal.

Liam and his team converted our basement in our previous house. This involved full underpinning, tanking with membrane and pump, new staircase and finish. The room came up great with a nice high ceiling and was well insulated. From start to finish we were impressed with Liam and his team and it is no surprise to us when we see his hoardings around St Albans. Highly recommend.

Ben Cumming

We used St Albans Basements to carry out the basement package on a project where we were the main contractor. Liam and his team were a pleasure to work with. Professional, approachable, and extremely accommodating with advice, sharing their expertise. The quality of the workmanship was of a high standard, and they delivered within the set timeframe. I would highly recommend using this company and would definitely use them again in the future. Thanks, Liam and the team!

Shaun Murphy

Liam and his team did an amazing job building our basement. They were all so conscientious and careful about keeping our house tidy, cleaning after themselves every day. Although our basement was built in 2019, we use it everyday and couldn’t imagine our house without it. If anyone is considering getting a basement, I highly recommend St Albans Basement.

Élan Mordecai

Liam and his team transformed our little damp cellar into three rooms. This involved lots of digging to increase the footprint and ceiling heights, underpinning the house, and fully damp-proofing everything. A year later we had St Albans Basement back to build a side return extension. All of this together has transformed how our family live, and the kids can grow up here without us ever having to move. We're so happy with it all!

Gareth Gibson

We had a wonderful experience with Liam and his team from start to finish and we’re really happy with our finished project. Both our basement and kitchen extension are perfect. Thank you!! We had a tight deadline because we were due are second baby around the time of the build. We were happily back in our own home on the day our little one arrived

Nicola Robinson

St Albans Basement were extremely professional and competent from the conception and idea phase right through to the building of the basement and customer aftercare. Throughout the process they were there to assist and drive decisions and were completely transparent from day one. Both Liam and Will are throughly nice chaps too! Highly recommended!

James Riordan

We are so pleased to have chosen St Albans Basements to work on our cellar. Their work has been transformative and of the very highest standard from the very start to the end of the project. We are now in the decorating stage - and once that’s done will post some pictures. Our intention is that we will make it look like a modem-day, Victorian-style cinema, if that makes sense. Liam’s design team were always able to bear this in mind when laying out the new room. The high levels of professionalism and expertise, the very regular communication and the attention to detail, in response to our (sometimes quirky) needs was first class. Liam and his whole team are very approachable; and the men doing the ‘hard graft’ were polite, hard-working, cheerful and at pains to always keep everything as tidy and well-ordered as possible so that we could go on with our daily lives in the rest of the house. What we appreciated most … Liam is an excellent project manager and his in-house and extended team are very, very well co-ordinated to make things happen logically, to the highest standards and, importantly, to time. We have absolutely no hesitation in recommending them and, when you see the photos of how our whole experience of being in our house has been enhanced, you will see why. More soon!!

Peter D

Liam and the team worked wonders on our basement, a lot of work was required to dig out an existing space and add a new staircase and window into the damp cellar, but the team worked quickly and efficiently in what was a narrow and difficult street to work, in terms of allowing access for skips and deliveries. The basement room is a brilliant family space, and feels airy and temperate. Cool in summer and warm and cosy in the winter. The team were polite and considerate when working around a young family which we really appreciated. Would highly recommend.

Carla Sydenham

Liam and the team transformed our damp cellar into an amazing downstairs music room / den and we would not hesitate to recommend based on our experience. Liam is professional and a pleasure to work with and we found his team to be both hard working and polite. Thanks again for making a complex and difficult job so straight-forward.

Neill McClements

Our property was situated in a conservation area and St. Albans Basement were experienced in dealing with the complications this brings. We would recommend them to anyone who was seeking a basement conversion or installation.

Irnthu Premadeva

Liam and his team completed a fantastic renovation of our basement room. Liam assessed the space, provided the options and gave a clear quote. The room was originally very damp unusable - in addition to the stairs being rotten. We have now been using the room for 10 years as a snug/tv room and we haven’t had a single issue. I would have no hesitation in recommending Liam and the team.

Lee Taylor

Liam and his team were professional throughout the project. We refurbished a Victorian property in a conservation area which had a very dark damp cellar with a low ceiling. It was a daunting project to convert this area into a a beautiful living space. Liam guided us through the planning process as well as helping with the structural engineer. St Albans Basements did such an amazing job that they were engaged by our neighbour to undertake their extensive basement project. We would use them again without hesitation.

Nigel

If you’re ready to start your basement construction journey, trust St Albans Basement to make your vision a reality. Contact us to schedule a consultation and discover why we’re one of the most respected basement construction companies in London. Let’s create a space that’s not only functional but also truly extraordinary.