Excel Quality Loft Conversions and Extensions in South London and Surrey

Your local experts in quality Loft Conversions, Extensions, Refurbishments and New Build. We provide free quotations, and offer an insurance backed 10 year guarantee on all our work. Call the best today!

We are a fully registered company and have full public liability insurance. All of our operatives are fully qualified and vetted through the governments Construction Skills Certification Scheme so you can be sure of a professional service from initial enquiry through to completion.

Many thanks for your fab work, our new extension looks amazing. Very professional bunch of guys, job was finished on time we are so happy with the outcome will be highly recommending to our friends and family. Thanks guys!! #EXCEL
Serena Thompson
Carshalton Beeches
The Excel team were everything that we hoped for in a loft conversion company. They were painstaking in measuring up and then delivered exactly what was agreed, on time and on budget. The quality of workmanship was highly professional - I wouldn't hesitate to recommend them to anyone.
Dr Richard Phillips

Your Trusted Builder in South London for Loft Conversions, Extensions and General Building Projects.

Excel Lofts and Extensions have built an enviable reputation in London and Surrey with quality projects completed on time and within budget. With an in-house architect and structural engineer we have the professional expertise and can offer a seamless process from the original quotation, through to completion.

We are a family run business that works on each project in small and dedicated teams. Our professionalism and attention to detail is essential to our continued success. Don’t just take our word for it, read through our testimonials and recommendations.

Excel Loft Conversions and Extensions Ltd

Excel loft conversions and extensions have been converting lofts, building extensions and refurbishing properties in South London and Surrey for over 15 years.

We have completed many projects over those years in the following areas in London;


And in Surrey;

WallingtonSuttonMitcham,  KingswoodBansteadCheamPurleyEpsomStoneleighMordenDorkingReigate.