What you're actually paying for
A renovation quote is three things: the build itself, labour and materials; professional and statutory fees around it, an architect, building control, planning, party wall; and VAT at 20% on top, which a surprising number of quotes don't make clear.
Labour
Your builder's trade costs for every stage of the job.
Materials
Everything used in the build, from first fix to finish.
Fixtures, fittings and furniture
Specified in the scope upfront, not quoted as an extra later.
Site protection and waste removal
Your home protected and the site kept clear throughout.
What renovations actually cost in London
These are the ranges we stand behind. Every figure includes VAT. Click through for the full breakdown, or go straight to the service.
Kitchen renovation
A kitchen renovation in London typically costs £32,000 to £43,000, with most projects landing around £36,600.
Bathroom renovation
A bathroom renovation in London typically costs £15,000 to £22,000, with most projects landing around £17,200.
Loft conversion
A dormer loft conversion, the most common type, costs £49,000 to £84,000 in London. A rooflight conversion starts nearer £35,000, and a mansard can pass £110,000.
Basement or cellar conversion
Converting a cellar you already have costs £32,400 to £50,400 for a typical 30 square metre space. Digging a new basement is a different order of project, £288,000 to £480,000 for 40 square metres.
House extension
A 20 to 30 square metre single-storey rear extension in London costs £72,000 to £120,000.
Full home renovation
A full home renovation in London costs £2,000 to £2,800 per square metre, so £200,000 to £280,000 for a 100 square metre house.
Why pricing with Beams feels different
With us, great results and great value go hand in hand.
Know your costs upfront
Once we understand your project, you'll get an instant, realistic range before you speak to a single builder. No guesswork, no surprises later.
Everything included, from start to finish
Renovations are full of hidden extras. Move a sink and you need a plumber, add an induction hob and that's electrical work. With Beams, everything needed to finish the job properly is in the scope from day one.
Three competitive quotes as standard
Once your project scope is ready, we gather quotes from three trusted builders against the exact same specification. You compare like-for-like and lock in a fixed price before work begins.
Transparent and fair renovation prices
Once your project begins, pricing stays predictable.
You and your builder track the same information, in real time, through the Beams dashboard.
Milestone payments
Funds are held securely and released only when each stage is approved by you.
Change management
If you adjust scope mid-build, your builder updates the plan and costs through Beams, so you can review and approve before work continues.
Professional contracts
Every project runs under a signed home-improvement contract with clear terms on scope, payment and warranty.
Frequently asked questions
Find out what your project will cost
Tell us a bit about your project and we'll give you a realistic range in minutes, then match you with up to three vetted London builders quoting against the same scope.