A 1 L & E
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A 1 L & E
Looking for an extension or loft conversion in Surrey, South West London or the Home Counties? We create beautiful living spaces and add value to our client's properties. Our expertise includes all types of lofts and extensions, please let us share our knowledge, creativity and good practical sense for your home.

We provide unparalleled expertise in loft conversions, extensions and refurbishments, committed to providing our customers with the highest level of service and construction possible and an extensive portfolio of satisfied clients reflects our dedication in providing a first class service. We build bespoke extensions and loft conversions in Surrey, Hampshire, the home counties, London, Windsor and other areas across the region.

With high quality loft conversions or house extensions, you can increase the value of your home as well as improve your living space. As one of the UK's most popular forms of home improvement, loft conversions and house extensions can make wasted space practical and by installing loft insulation you can reduce your energy bills too.
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Steve Mills began his trading career in 1999 creating award winning lofts & extensions achieving an unrivalled reputation. Sadly, he entrusted the running of his business to others. Two members of the external review team were so sympathetic to the plight of customers, they felt obliged to volunteer their time and expertise to those adversely affected.
Or alternatively, you can call us on 0800 0192 678 to discuss receiving a FREE quote for your loft and/or extension. By providing your email address and /or mobile number you are giving us permission to process your personal data and use it to contact you.
The failure to integrate CDM regulations into onsite working practices is a criminal offence punishable with unlimited fines and for individuals, imprisonment. If as a householder, you fail to appoint a Principal Designer and a Principal Contractor, the liability of non-compliance will fall on you.
We will discuss the best solution for your home during your consultation. However, here are answers to some of the loft extensions questions that we are asked frequently. It is not practical to convert some lofts. During your consultation, we will advise on all the loft extensions options available to you.
A1 ensures that our clients benefit from the high standards of service and client satisfaction provided by our design, technical and build teams. Whether you are looking for a rear, side or double storey extension, the reasons for choosing A1 are endless. Our Expertise - We have a wealth of experience in loft extensions, loft conversions and the design and construction of extensions.
Reviews (10)
Stephen Price
Stephen Price
Jan 23, 2019
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Our home refurbishment and extension are now complete and we are unbelievably happy with the final result. A1 realised our dream. We would recommend them without reservation. Having previously wasted hours and spent too much money with architects and potential builders, we were recommended to consider A1. From the very start, Steve Mills and Rikki-Lee understood our ideas and skilfully suggested possible additions to our project. A1 took control of everything from drawings, planning permission and build, allowing us to feel involved and reassured about our home development. The building team were
Sonya Marriott
Sonya Marriott
Nov 28, 2018
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We recently used A1 for our rear extension and are extremely happy with the results. The builders and project managers were all very hard working and pleasant to work with. Any small problems that we had were very quickly resolved with no issue whatsoever. This is the second time that we have used A1 as their standard of work and efficiency was so good on our loft extension 7 years ago we were very keen to have them back again. Their original quotes for both extensions weren't the cheapest that we had but the quality and speed with which the work was done was well worth the money. I highly recommend
Maheen Mathew
Maheen Mathew
Oct 20, 2018
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We engaged A1 to build a loft for us. The team they provided has been top notch. Darryl as team lead with his main man Peter makes a very good team. They were able to complete the entire project in under 7 weeks. This has been really impressive. Darryl was really good with communicating the various stages and very detail oriented. There were the usual challenges of coordination, but it was very effectively managed. I would also make a special note of how courteous the entire team has been. All in all very happy to recommend A1 and Darryl's team to anyone looking for building a loft.
Katy Hubbard
Katy Hubbard
Sep 09, 2018
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I was dreading starting the loft but our A1 Project Manager was absolutely brilliant. They were courteous, helpful with ideas and hoovered up every night! They were so efficient it was hard to keep up with them at times. Even now almost 12 months on they come back if anything crops up that needs attention. I would strongly recommend using A1 to anyone who asks.
Bill Tickle
Bill Tickle
Dec 24, 2017
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A1 have produced a beautiful loft for us. The work of the build team was excellent and overall we are very happy with the build. This would have been a five star review had it not been for a couple of shortcomings. Firstly we had asked for design involvement in the stairs. This didn't happen and I feel A1 as the project management team take responsibility for that. Secondly there were issues with the scaffolding that was left in place for too long.
However having said that the build was done beautifully and we are extremely happy with the results overall. I am happy to recommend them. The team
David Coleman
David Coleman
Nov 16, 2017
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A1 have a very efficient process and are exceptionally clear at the outset about what's involved and what is and isn't covered in your contract.
I would have liked more of an input into the design side, but it may be my fault for not pushing on this. Some ideas we put into the plans, the builders later told me couldn't be done, so we ended up with something a bit different to what I imagined at the outset. That said, the agreement of the contract, plans and getting the relevant consents was made very straightforward by A1.
I was led to believe at the beginning that I contracted with A1 and they
Susanne Ferreira
Susanne Ferreira
Oct 21, 2017
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I was recommended A1 Lofts and Extensions by a neighbour who had used the company and was thrilled with their new loft extension and the speed / finish achieved. I found the sales process with Ricki Lee very straightforward and honest, with clear documentation and process and a number of visits and consultations. Ricki also gives great advice based on her experience of builds which I found invaluable. The planning process was was handled very well and I was able to discuss directly with the A1 architect a number of times the various options and all ideas and options were illustrated, A1 were keen
Christopher Howe
Christopher Howe
Sep 09, 2017
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I just wanted to drop you a line to give some feedback on A1 and Darryl the Project manager, who in my view he provided an outstanding professional and dedicated service, this was evident in the way he approached each phase of the project from start to finish.
The key attributes to this were;
Always engaged
Treating his team with respect
Using the right subcontractors who's focus was on quality
Great levels of communication
High level of integrity
One of my observations was he's passion to get the right trades to support him, from Pavel (Dormer construction), Chris (roofer) Roman (electrician
Michelle Williams
Michelle Williams
Jun 23, 2017
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Our Project manager was Rich and he was excellent!! as were Vio and Alex, they were so respectful of our home for that I am so grateful.
All concerned worked so hard over the 6 weeks and nothing was too much trouble.
All the tradesman that were onsite over the 6 weeks were all pleasant, polite and respectful.
We had a couple of issues but everything was dealt with in the most professional manner.
The whole project from start to finish was handled by A1 and we were kept informed throughout the whole process.
Emma Pursey
Emma Pursey
Sep 01, 2014
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A1 built my loft in 2014 and it was a great experience from start to finish. The running of the project was excellent, the team leader was great and kept us informed throughout the build process. We were amazed at how straightforward the build was and how clean and tidy the house was left every day.
Our new loft is fantastic and has added a whole new dynamic to our home. I would thoroughly recommend A1 for a hassle free build.