30 Day Extensions Ltd

Complted 90 extensions and lofts in a year. We build high spec extensions/lofts in 30 days/240 hours- watertight plaster finish. Opening high st shops first open at Wimbledon. Free! in house architect, Engineer and QS if you instruct us. We also build ECO friendly ICF walls. We have contracts with Howdens kitchens& other brand outlets. Our references are second to none. Peter Snelson owner has 40 years international property experience. 80 people in Comp. VAT/CIS. Sister co 20 Day Lofts


  1. Loft Conversions
  2. Extensions

About 30 Day Extensions Ltd

Why choose us?
• Recently completed 90 projects in the last year
Free in house architect and engineer if you use us.
• Fantastic reputation, reviews on google and webpage.
• Speed, we build in 30 days.
• Fixed price, quoting done by an independent Quantity Surveyor. Meaning, irrefutable pricing.
• Physical shop presence. Not virtual company.
• Amazing staff. Highly skilled reputable teams.
• Guarantees that mean something.
• Innovative. We now offer opportunity to build with ICF Walls which are 6 times warmer and go up in 2 days.
• Lofts. Currently developing a steel frame system, enabling construction in 2 days, thus eliminating most of expensive scaffolding costs.
• Peter snelson, the CEO has over 40 years experience in the industry.

New review

Atef Awad

 21 mins ago

Superb on time & in budget Not enough? Let's add highly professional team of specialist trades brought together and orchestrated by your own dedicated Project Manager. Our Project Manager, could not have been more helpful throughout offering advice and often suggesting little changes to some of our original plans which have resulted in considerable improvements. Still not enough? Ok let's add total transparency - fabulous admin team led by Sue managing payment schedules and producing a weekly pie chart to show payments made against work completed. 30 Day Extensions have specialist for each trade- We have had Electrician, Plumber, Carpenter, Tiler, Plasterers, Labourers. All incredibly skilled and astonishingly virtually every request to any of these no matter how tricky has been met by "no problem". Make no mistake this is a very resourceful team who all work together as a team. We have been immune from the common problems of coordinating and timing getting all these trades in place at the right time. These guys are at the front door waiting patiently for 8AM before ringing the doorbell to get started and they are pretty much flat out until 5PM. Progress is clear at the end of every day, and they have all been an absolute pleasure to have around. All work completed to a high standard we are absolutely delighted with our back extension and the finish standard. 30 Day extensions completed a back extension for one of our neighbours, they were highly recommended by them, and we saw the quality of their work. It was an easy decision for us- they are not the cheapest but certainly not the most expensive offering great value. You will be pushed to get a better team - if you want a good job done with total peace of mind guaranteed then do not hesitate to contact them!


Public Liability Insurance

Limit of indemnity: £5,000,000.00
Valid until: 2nd Jun 2023

Latest reviews

  • Ground Floor, Single Story, Side Return Extension

    I could not recommend the 30 day team higher. I am absolutely thrilled with the side return extension project they completed. The team are efficient, resourceful, always available, flexible and very knowledgeable. I had some concerns initially about the project, but they put me at ease straight away and were always on hand with any queries I had. They completed the project far quicker than any of the other companies had quoted, and I could not be happier with their service. They are a very well run, and well organised operation, and it was a pleasure to work with them. look no further if you need an extension done!

  • Rear single storey extension and ground floor refurb

    The guys were great. Peter sits on top but his teams operate really well. Pricing is good, and Susan keeps you informed the whole way through. Strongly recommend

  • Clapham SW11, single story, side-return extension

    A really excellent set up of builders.
    Peter was great in evaluating the work and what we needed done. Sue was clear in her communication on costs, and then execution of the works by Taras and his team was superb.
    The extension was built in fantastic time-frame, and the end result is great.
    The work-ethic of the builders is what really makes them so good. They are on-time every day, and relentless with working hard each day.