If you are looking to start a new project, Lawson & Sons can help from the very beginning. 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.  

Building Company Bexley, BuildingCompny Sidcup, Local Builders, Kent Builders

Why Choose us?

10 Year Guarantee

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.

Visit our previous work


We arrange for new clients to view our previous work. We have a saying and that is "You're only as good as your last job" Our previous clients are happy to show off their new Loft conversion or extension and welcome our new customers to speak with them about their experience. This really does make our new customers feel at ease and we pride ourselves with their feedback

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. Everything is kept in house. I will be at your property from start to finish until its completed. We do not run multiple jobs like others which means we are 100% focused on your project at all times.

Lawson & Sons Builders in Sidcup 

Loft conversions and Extensions, Serving Sidcup, Bexley, Welling & more.
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. 
Lawson Builders in Sidcup Kent. DA15, DA14 Builders

Lawson & Sons have been established in Sidcup & Kent for over 35 years and have experience in a range of construction and building services. 


These include:

- Full House Refurbishment

- Extensions/Garages

- Loft Conversions

- Garden Walls/Paths

- Patio Building

- Porches

- Canopy Roofing Repairs

- Fascia Repairs

- Soffits & Guttering/UPVC Guttering Repairs

Builders in Bexley, Buildrs in Sidcup, Loft Conversion Company, Extension Builders

Some of our Reviews.


“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! Highly recommended company! Very clean and tidy. Thanks again!” 


Customer in Sidcup

“Really nice family 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 as to the best way forward. 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.” 


Customer in Bromley

Why choose Us as your builder?

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 over our work.


Not only are we one of the most highly rated builders in Sidcup, we also carry and can provide details on full insurance details and full references from previous customers. 

Registered Office Address.

R Lawson & Sons Ltd

The Old Barn,

Off Wood Street,

Swanley Village,




Call Us - 020 3752 7464

email - info@lawsonbuild.co.uk

Companies House number  09888661
Registered in England and Wales


Builders in Sidcup, Loft Conversion Bexley