01 —
Extensions
Side returns, rear, wraparound and double-storey extensions delivered end-to-end. Groundworks, structural, brickwork, roofing, glazing and finishing — all coordinated by one team.
Enquire →25 Years On The Tools · South East & Greater London
London's trusted building
experts. Built properly,
first time.
Claudio Construction Ltd delivers extensions, loft conversions, basements and general repairs across South East and Greater London — a quarter-century of hands-on experience, honestly priced.
Who we are
Built on twenty-five years of craftsmanship.
Claudio Construction Ltd was founded on a straightforward idea: do the work properly, be honest with the client, and stand behind everything you build. Twenty-five years on the tools across South East and Greater London means we've seen almost every situation a project can throw at us — and we've learned how to handle each one without drama.
We specialise in extensions, loft conversions and basement builds — the kind of work where cutting corners early causes headaches for years. We also handle general repairs and maintenance for clients who trust us with the smaller jobs as much as the big ones.
—Twenty-five years experience
—South East & Greater London
—Family run
—Free on-site quotes
—Honest itemised pricing
—In-house team
What we do
Four services. Every one done properly.
We keep our focus tight so we can execute at the highest level. If it's one of these four things, we can do it — and we've done it hundreds of times.
02 —
Loft Conversions
Turn unused roof space into a beautifully finished bedroom, office, en-suite or open studio. Dormer, mansard and full conversions with structural, insulation and finishing all in-house.
Enquire →
03 —
Basements
Basement conversions and new-build basements — waterproofing, excavation, structural and full fit-out. Turn overlooked space beneath your property into premium extra floor area.
Enquire →
04 —
General Repairs
From small fixes to structural repairs, plumbing to plastering, brickwork to decoration. If it needs doing properly, we can do it — with 25 years of hands-on experience.
Enquire → Our approach
A quarter of a century. Zero shortcuts.
01
Tested Over 25 Years
A quarter-century of hands-on construction and renovation across London. Repeat clients and word-of-mouth make up the bulk of what we do.
02
One Accountable Team
You speak to the person responsible for your project — not a call centre, not a project manager you'll never meet. Direct access, honest answers.
03
Free Quotes, No Pressure
We visit, understand the brief, and provide a clear itemised quote at no cost. No pressure sales, no vague allowances added later.
04
South East & Greater London
Local coverage across South East and Greater London — from small repairs in Croydon to full extensions in Kent, Sussex, Surrey and beyond.
How we work
Simple. Transparent. Done properly.
Five clear stages from first call to final handover. No surprises, no vague timelines, no chasing you for money.
01
Consultation
We visit your property, listen to what you need, and provide honest advice on scope, timeline and budget. No obligation.
02
Detailed Quote
A clear itemised quote covering materials, labour, finishes and timeline. No hidden costs, no vague allowances.
03
Planning & Prep
Where required, we help coordinate planning permission and building control, and prepare the site properly before work begins.
04
The Build
Our team handles everything. Clean site, clear communication, direct access to the person responsible for your project.
05
Handover
Final snagging, thorough clean and handover. We stay reachable after handover for any follow-ups.
Get in touch
Start your project with Claudio Construction.
An extension, a loft, a basement, or a repair — tell us about your project. We respond promptly with honest advice and clear next steps.