Reviews

Last year we decided to have our attic space converted into a bedroom/bathroom and also have the existing bathroom completely redone. We employed a local architect (Elena Rowland, who I also highly recommend), who recommended Alt Group Construction for the build. It was a very good decision. The build was completed bang on time, it was within the agreed budget, and the workmanship was exceptional. The crew were highly experienced and a pleasure to work with. I highly recommend Alt Construction.

We hired Alt Construction for a complex renovation of a 100-year-old leasehold flat in central London. Despite strict conservation rules, freeholder constraints, and structural quirks, the team showed exceptional professionalism, skill, and patience. They tackled every challenge calmly, kept us informed at every stage, and delivered top-quality workmanship with rare attention to detail. Tommas, Karol, and Marcello were respectful of the building, neighbours, and timeline. We’d highly recommend them for any high-spec, high-complexity renovation project done right, on time, and with care.

We recently called Alt Construction again for a rear extension in Streatham, after they completed a fantastic loft conversion for us 3 years ago. As before, they handled everything—from structural work to plumbing, brickwork, electrical, fitting, and decoration. Tommas and his team once again delivered exceptional craftsmanship and professionalism, completing the project on time and within budget. We're thrilled with the results and highly recommend Alt Construction for any home improvement projects.

Alt Construction, led by Tommas, did an outstanding job on the plumbing and fitting for our pasta bar, Nonna Mamma, inside Selfridges. They expertly followed Selfridges' internal guidelines, ensuring the work met all requirements while maintaining top-quality standards. The team was professional, efficient, and delivered the project on time and within budget. We couldn’t be happier with the results and highly recommend Alt Construction for any plumbing and fitting needs. Nonna Mamma Pasta Bar

Expertise and good communication is what Alt Construction are known for and they live up to their reputation. Tommas is one of the owners and he personally project managed our side-return extension. He made sure we were happy each step of the way. They did an amazing job and also did little things like providing us with a temporary set-up: washing mach./dishwasher etc. This made living through the work less stressful. They delivered to their timeline and budget and made sure everything was expertly done. We’re planning future projects and will go directly to Alt Construction for this work.

I used Alt Construction for a major renovation project in a conservation area and I cannot recommend them highly enough. Marcello and his team exhibited the utmost professionalism and expertise throughout the entire process. From the initial consultation to the completion of the project, they demonstrated a deep understanding of their craft and a commitment to delivering exceptional results. In my situation, besides the great work carried out, I found very helpful their advices with regards to architectural aspects and all technical matters.