See how we take care of our customers' experience with reliability, top quality and more
We contacted Sigma building for some patio/garden work after seeing the fantastic job they had just done of our close friend’s extension! They matched the same quality and attention to detail they did on theirs, on our work and we can’t recommend enough. We gave them a bit of a brief and some pinterest inspiration pictures and they delivered over and above. To also mention a few important aspects you’d expect which they delivered on: friendly and personable, aswell as managing the project, (materials and skip delivery), and also speed and hard work. Will definitely be contacting again the next time we need some work done!
~ Laura B
I have used Sigma for a number of projects, and cannot recommend highly enough. Always punctual, work carried out to the highest standard, very tidy, nothing too much trouble and a complete perfectionist. From a complete kitchen install (including plumbing, electrical, tiling and lighting), ti patio construction and creating under stair storage solutions, Sigma did it all and I wouldn’t go anywhere else for home renovation work. Ionut is a lovely person and I recommend him and the business highly.
~ Rob N
I’ve recently worked alongside the Sigma Building team on a project, and let me tell you — these guys are the real deal. I came in with my digger to help out with groundwork, and from the moment I arrived on site, I could see they run things properly.
✅ Professional, well-organised, respectful and hardworking — a solid crew that actually knows what they’re doing. Every stage of the job was done with care and precision — from foundations to blockwork and site prep. No cutting corners, no messing around. Tools on point, materials ready, and always thinking two steps ahead.
💬 Communication was crystal clear from day one — we discussed the plan, the timings, and stuck to it. No surprises, no delays, no excuses. Just quality work done efficiently. And the prices? Fair and honest for the high standard of work they deliver.
💪 These boys don’t just show up — they get the job DONE. Clean, smart and reliable. I’ve seen a lot of contractors, but Sigma Building is a name I’d recommend without hesitation.
Massive respect to the team — looking forward to working together again!
~ Serediuc A
Ionut has done a brilliant job of our renovation project. Initially booked for just the structural work and installing steel beams, but ended up doing much more including flooring, plastering, painting and we plan to book Ionut for further work later on. Ionut is professional, is very easy to work with, has great communication, and works extremely hard. He has a great work ethic and will get the job done quicker and to a higher standard than other builders we've worked with.
~ CC
We recently had a new kitchen done by this building company, and we couldn't be happier with the results. The team was professional, efficient, and kept us updated throughout the process. The quality of the work is excellent, and they really paid attention to the details. Our new space looks fantastic, and it's exactly what we envisioned. Highly recommend them to anyone looking to improve their home!
~ Cosmin A
They turned our living space into a true work of art. Their meticulous attention to detail and unwavering dedication to quality shone through every step of the project. We wholeheartedly recommend them for any construction or renovation needs in the UK. If you're looking for skilled builders, professional construction services, or top-notch home improvements, this team is the best choice.
~ I C
We were very impressed by Ionut’s professionalism, friendliness, and excellent communication skills. He was very responsive from the very start and advised us well on the work at hand during his visit to our property. Due to changing personal circumstances, we aren’t quite ready to proceed with our project at this time, but when we do, we will no doubt entrust it to Ionut and his team.
~ Laura E
Impressive. Recently this building company completed a bathroom remodel for us, and everything from the tile work to the plumbing was done with precision and care. Easy to work with, always answered our questions, and ensured we were happy with each step of the process. They went above and beyond just to make sure the job was done right!
~ BIA
I recently had my kitchen fitted by this company. Carpentry, tiling, electrics, plumbing, painting and flooring were undertaken to a very high standard. It far exceeded my expectations and I am delighted with my new kitchen. I highly recommend this company and will use this business for any future works I may need.
~ Glenda A
We engaged Sigma for a large single storey L-shaped extension. We chose Sigma as we found Ionut to be honest, hardworking and trustworthy and the quotation was very competitive. We are extremely happy with our extension and cannot recommend Ionut and his company Sigma Building enough.
In particular, Ionut is extremely dedicated and works tirelessly to deliver a high-quality finish within or even earlier than his estimated timescales. Nothing is too much trouble for him, he is willing to go out of his way to deliver on what we as the customer wanted. He is highly communicative and he and his team are extremely helpful, polite and friendly. He is without a doubt extremely skilled and is willing to turn his hand to anything. As part of our work, Sigma built a large L-shaped extension, a garden gym, new patio, new driveway, new fences, LVT flooring, swapped our upstairs layout and installed a new bathroom. We are extremely happy with all of the work that Ionut and Sigma have delivered and have recommended Sigma to several of our friends.
If you are looking for a hard-working, trustworthy and diligent building company, then Sigma is undoubtedly the best choice for you. Thank you Ionut and Sigma
~ Holly B
Fantastic builder, could not recommend them more. Hard working, highly responsive and incredibly helpful.
Sigma built us a single storey lean to extension in half the time anyone else said they could do it in, with no corners cut.
Brilliant team and I really recommend using them.
~ Chris T
Sigma Building recently knocked an interior brick wall down for us, built a new stud wall and stripped out the bathroom. Ionut is a really nice guy and did a great job. Very responsive to messages and completed everything as said he would for a fair price. Would highly recommend.
~ Jay M
After building an extension for my daughter I have just had my garden completely landscaped. Everything I asked for nothing was a problem. Work was completed in time they said would take and the price was very fare.i have recommended this company already to neighbours and friends.
~ Darrell B
I can't recommend these guys enough, they work really hard and make sure everything is right. Really easy to get along with too and provide many different building services. I'll use them again. Thanks!
~ Helen
Very prompt, responses right from the initial quote. Ionut was friendly, reliable and the work was done quickly and to a good standard. Would highly recommend Sigma building.
~ Richard J
Had a new shower room and tiled. Painted and decorated in several rooms. All done very well.
Would have liked that the packaging, old bathroom and doors were removed.
~ Yvonne F
My kitchen extension turned out better than I ever imagined. The builders were extremely proactive in addressing challenges and delivered the project with outstanding quality and precision.
~ Ion
Beyond happy with the work carried out, Ionut is very professional, hard working and the standard of work is impeccable. Would highly recommend!
~ Tuesday B
Work has been completed professionally and to a very high standard.
Excellent reputation, so highly recomended!
~ Mihaela E
Attentive,responsible and versión polite guy.A pleasure to work with him and place trust.
~ Mihaela M
Very humble people. Provided me quotes without hassle. Highly recommended
~ Asad M
Very good and honest
He is excellent in planning
Trustworth
Provide excellent service
~ salah a
A great experience and would highly recommend.
~ Alex A