Alt Construction

Reviews (28)

• 10

  Refurbishments

  Posted 16 July 2025

  Complex renovation of a 100-year-old leasehold flat

  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.
  
  Verified reviewer

  Job location: W1U
• 10

  Extensions / Conversions

  Posted 02 March 2025

  Happy Returning Client

  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.
  
  Job location: SW16
• 10

  Refurbishments

  Posted 28 February 2025

  Plumbing and fitting work inside Selfridges

  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
  
  Job location: W1A
• 10

  Extensions / Conversions

  Posted 02 February 2024

  House Extension in Palmers Green

  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.
  Verified reviewer

  Job location: N13
• 10

  Refurbishments

  Posted 24 January 2024

  Renovation project in a conservation area

  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.
  Job location: E2
• 10

  Loft Conversions

  Posted 20 November 2023

  New loft and house renovation

  I'm really impressed with the workmanship of ALT carried out for our loft conversion. We didn't think we'd be able to create a good loft space but our architect advised us on the best design and ALT completed the project with very good finishes. They were always available to speak to us during the whole renovation and always took our ideas on board. They were not the cheapest, but we were really happy with the results and believe the cost was worth every penny. We were considering moving home but now we feel really comfortable as ALT have help create the sanctuary we now love to live in.
  Verified reviewer

  Job location: N13