House Extensions
Rear, side return, wrap around and double storey extensions, matched to an extension builder covering your area.
Builders In London, Matched To The Job You Have
Extensions, conversions, renovations and structural work. Tell us what the project is and we pass it to a builder who does that work in your area.
Straight Answers Before You Send Anything
What this site is, what it costs you and what happens after you press send.
It Costs You Nothing
Sending an enquiry is free and puts you under no obligation. We are paid by the trade side, never by you, and no price on this site is ours to set.
Check Them Yourself
Whoever contacts you has a public record: a Google Business Profile, Checkatrade, Trustpilot or the Federation of Master Builders. Look them up before you commit.
No Scores We Have Not Earned
There is no star rating anywhere on this site, because we have none yet. When there are real reviews, they will appear with the source attached.
customer reviews and why this site does not show a score.
Builders In London
Most people looking for a builder are not short of names. They are short of a way to tell which of those names does their particular job, at their particular size, in their particular street. A single-storey rear extension and a four-flat conversion need different firms.
That is the gap this fills. You describe the work, we route it to a contractor whose normal week looks like your project, and they contact you. If the scheme needs its costs controlling as well, quantity surveying runs alongside the build.
The Work Builders Here Take On
The enquiries that come through this site are overwhelmingly domestic and small-commercial: adding space, reworking what is already there, and putting right the structure underneath it.
- Single and double storey extensions
- Loft, garage and basement conversions
- Full and partial house renovations
- Structural alterations and internal remodelling
Who Runs The Trades
A job with a main contractor has one person responsible for the programme, the trade sequence and the mess. A job let trade by trade saves a margin and hands you that responsibility instead. Say which you want when you enquire.
- Main contractor running the full build
- Individual trades for a defined package
- Coordination with your own architect or engineer
- Building control and inspection sign-off
What A Proper Quote Looks Like
The thing that separates a price you can rely on from one that moves is whether the exclusions are written down. A builder quoting properly will tell you what is not in the number as clearly as what is.
- A written scope against drawings, not a verbal figure
- Named exclusions: fittings, decoration, unknowns
- A stage payment schedule tied to work done
- What happens when something is found behind a wall
How A Builders Enquiry Runs
Describe The Project
What you want built, roughly when, and whether drawings exist. Photographs of the space help more than most people expect.
We Route It Locally
The enquiry goes to a contractor who takes on that type and size of work in your area, not to whoever is nearest.
They Quote You Direct
The builder arranges to see the job and prices it themselves. The arrangement from there is between you and them.
Tell Us What You Want Built
A short description and a postcode is enough to get the enquiry to the right contractor.
The Kind Of Work That Comes Through
Surveying, structure, extensions and finishing across London property.
Where We Work
RCRO Building works across London and the towns and villages within 20 miles.
Towns And Villages
- London
- City of Westminster
- Islington
- Chelsea
- Battersea
- Holloway
- Brixton
- Peckham
- Fulham
- Archway
- Shepherds Bush
- Canary Wharf
- Stamford Hill
- Willesden
- Cricklewood
- Putney
- Streatham
- Stratford
- Chiswick
- Catford
- Canning Town
- Acton
- Wimbledon
- Tottenham
- Finchley
- Leytonstone
- Walthamstow
- Mitcham
- Wembley
- Beckenham
- Brent
- Morden
- Edmonton
- Eltham
- Croydon
- Barking
- Ilford
- Carshalton
- Enfield Town
- Chingford
- Greenford
- Harrow
- South Croydon
- Hounslow
- Welling
- Southall
- Thamesmead
- Heston
- Surbiton
- Sutton
- Becontree
- Purley
- Borehamwood
- Ewell
- Bexley
- Hayes
- Dagenham
- Feltham
- Banstead
- Ruislip
- Epsom
- Cheshunt
- Esher
- Romford
- Dartford
- Watford
- Uxbridge
- North Watford
- Staines
- Leatherhead
- Hatfield
- Hoddesdon
- Redhill
- St Albans
- Grays
Builders Questions
How much will my project cost?
Nobody can tell you from a description, and a figure given before anyone has seen the job is a figure that will change. The builder will price it against the actual scope and the actual property.
How long will the work take?
It depends on the scope, the access and how much of it is structural. Ask for a programme with the quote rather than a single end date, so you can see which stages are the long ones.
Do I need planning permission?
Many extensions and conversions fall under permitted development, but London has a lot of conservation areas, flats and leasehold properties where it does not apply. Say what the property is and it can be checked.
Who manages the trades and the schedule?
With a main contractor, they do. If you let the trades separately, you do. It is worth deciding which before you ask for prices, because the two are not comparable.
What happens if problems appear during the build?
Opening up old London housing stock turns things up. What matters is that the contract says how a variation gets priced and agreed in writing before the work is done, rather than appearing on the final invoice.
Can you show recent similar projects?
Ask the contractor directly when they come out. A builder who does your type of work regularly will have recent examples and will usually be glad to point you at them.
Related Building Work
Renovation & Refurbishment
Full house renovations, refurbishment and internal remodelling, matched to a contractor covering your part of London.
Loft Conversions
Dormer, hip to gable, mansard and rooflight loft conversions, matched to a specialist covering your part of London.
Quick Quote Online For Building Work
Tell us about the job and we will put you in contact with a trade who does that work in your area.
- Costs you nothing and commits you to nothing
- Detail helps: drawings, photographs, a rough budget
- The trade quotes you directly, not us
Quick Quote Online
Takes under a minute.
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