Welcome to LAWSON & SONS LTD

If you are looking to start a new project, Lawson & Sons can help from the very beginning. We are your local builders in London and Kent. We offer a full design and build plan and offer a 10 year guarantee which covers you during and after the build has been completed.

Local Builders London & Kent

Extensions and Loft Conversions

We complete all Extensions and Loft conversions to extend your home. We do not sub contract our work like others. We are a family run business with family values.


We Complete Renovations in your home from new Kitchens, Bathrooms and Garden works.

Domestic & Commercial

We complete Domestic and Light commercial works. We have our own machinery to cut hiring costs. This saves you money.

Design & Build

We offer a full design and build package. Our Architect will submit all drawings to planning for approval. We can also work from drawings you provide us.

Driveways & Gardens

We complete Driveways and patios to a high standard. All of our work can be viewed in person.


All our work is Guaranteed with the option to extend a 10 year insurance approved guarantee. We are also members of Which Trusted Traders and Federation Of Master Builders.

Visit Our Previous Work

We have a saying and that is “You’re only as good as your last job”.

Genuine Portfolio

All our pictures are genuine examples of us completing our jobs.

No Sub-Contracting

We do not sub our work out to other contractors. On time Completion is key.


We complete Loft Conversions, Extensions, Refurbishments, and more in DA, SE and BR postcodes. From our base in Sidcup we provide building works and services across the local and surrounding area, as well as taking on jobs across Bexley, Crayford, Welling, Orpington, Eltham, Dartford and Lewisham. We also provide services across the wider London area so please get in touch for a free quote of our services, you will surely love it!
We are a verified Trusted Trader with a rating of 9.85 across our services with a 100% completion rate within the quote given to clients at the beginning of our work. Not only are we one of the most highly rated builders in Sidcup, but we also carry and can provide details on full insurance details and full references from previous customers. We work exceptionally to make sure our clients get what they are looking for, quality work is guaranteed!

Request A Free Consultation

Quality Work Guaranteed!

We offer a 10 year Guarantee on all our work. This not only protects the build after we have left, it also protects the build during works and payments made during the works being completed. This offers complete peace of mind.

Hear what our Customers have to Say!

“Ray and his sons have done a wonderful job on our patio, fence and gate. Turned up on time everyday. Price didn’t change from the estimate will be definitely using Ray and his sons in the future! They are a reliable service provider. Highly recommended company! Very clean and tidy. Thanks again!”
Customer in Sidcup

“The build was estimated to take from six to eight weeks but it was completed before time. I would have no hesitation in recommending Lawson and Sons to anyone, as they were completely trustworthy, honest and reliable. I would love to recommend them to others, as i am a happy customer.”
Customer in Sidcup

“Great builders whose work cannot be faulted. They arrived before eight o’clock every morning which suited us fine as it fitted in with our work pattern. We were kept up to date as things progressed and any little issues that appeared unexpected were discussed and agreed by both parties.”
Customer in Bromley

Contact Us

The Old Barn, Off Wood Street, Swanley Village, Kent, BR87PA.

020 3752 7464