Builders in London and Surrey specialising in high-quality home extensions, conversions, property renovations, and complete refurbishments. Alkemist Build and Decorate delivers reliable construction services with clear pricing, structured project management and attention to detail from start to finish.
Our services
Federation of Master Builders Accredited
As accredited members of the Federation of Master Builders, our work and business practices have been independently inspected and professionally vetted. This gives our clients confidence that they are working with a reputable builder who meets recognised industry standards.
Our reputation is built on quality, professionalism, and satisfied clients — and we approach every project with the same level of care, whether it’s a small refurbishment or a larger build.
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Some of our projects
Why choose us
See what our clients say
Testimonials
Viktor’s team provided a very professional and thorough service in converting my loft into two bedrooms + a bathroom, and then went onto increasing the size of my living room, by knocking down a brick partition wall, then plastering and painting accordingly. The team carried out the work cost effectively and tidily. They worked in a clean manner, were considerate to my needs (I work from home), were never late to work (always started work at 8:30am, in line with noisy work regulations) & worked the whole day, without unprofessional number of breaks that many other builders take.
They started and finished the work on time and were very flexible to my requests, and changes in plans.
Recommended!!
Adnan HussainWe had a large project done. Double-storey extension with a lot of steelwork, completely change the roof. All internal works, including decor on top of obvious plumbing and electrics, etc… all was done very well, up to a very high standard. Specifically, we were pleased with the following: 1. No budget creep – Victor (the owner) quoted the price and delivered it within the budget. 2. I was particularly pleased that the owner was on site every day in the morning and in the evening to check the progress 3. They handled build control all by themselves. Will be happy to hire them again for any kind of job.
Artem and TaniaThis company has been the best in the last 20 years of our life experience. The combination of price and quality shows the best and fair option. Builders are very polite and super professional, work very hard and try not to affect the life of customers. Always try maximum to understand the wishes of the client, offers the best solution and try to safe your budget, pay attention to all details, very keen to prepare your project on the best way, carefully listen and understand all opinions of the client. I can trust this company 100% and I have already booked a time slot to renovate our daughter’s house.
Victoria BurnsideWe have worked with Alkemsit Build and Decorate Ltd on a number of projects over the years, both large and small, including a house extension, loft conversion, and a full house refurbishment. From the very beginning, everything was handled in a calm, organised, and professional way. Communication was clear throughout, timelines were well managed, and we always felt informed and looked after. The team was reliable, approachable, and respectful of our home, which made a big difference, especially during longer projects. The standard of workmanship was consistently high, with real care taken over the details. Any questions or changes along the way were dealt with sensibly and without fuss, and we appreciated the honest advice and practical solutions offered.
We are genuinely very pleased with both the process and the finished results. Alkemsit Build and Decorate Ltd is a company we trust and would not hesitate to recommend to anyone looking for a dependable, well-run building firm.
Ilia FradkinViktor and his team have done a number of jobs for me, including a full refurb of a flat I rent out. I have always been impressed by the quality of the work that he has done, including building, plumbing and electrics. He is always very quick to start the work and has always been very cost-effective compared to other quotes I have received.
Andy EvasonGreat to work with Victor and his team. They’ve done a great job and will be using them again on more projects for our house.
Owen LaFaveAmazing builders, super team and speedy work!
Ina GlueckVictor and his team did an excellent job preparing my house for sale. They approached every task calmly and professionally, with a reasonable and transparent approach to costs. Victor’s experience with property matters was clear throughout, making the process smooth and efficient. Highly recommended.
Yulia O.