Expert House Extension & Loft Conversion Builders Across London

Trusted builders serving homeowners across Greater London and the Home Counties for over 30 years.

We specialise in house extensions, loft conversions and kitchen renovations — working within a 30-mile radius of central London, from Surrey to Kent, Essex to Hertfordshire.

Deal directly with Jozeph, the owner — no project managers, no hidden costs.

Call or text: 07860 937539

Our Recent Projects

Get a quote within 48 hours

Our Core Services

J&D Building provides house extensions and loft conversions across Greater London and the Home Counties within a 30-mile radius. Over 30 years of experience transforming homes throughout the region.

House Extensions

Single & double storey extensions – kitchen extensions and extra bedrooms across London, Surrey and Kent
Side return extensions – maximize space in Victorian terraced houses
Rear extensions – create bright, open-plan family areas with bi-fold doors

Loft Conversions | London & Surrey

Dormer & Velux conversions – add headroom and natural light
Mansard & hip-to-gable – maximize usable floor space

Kitchen & Bathroom Renovations

Kitchen extensions – combine renovation with space expansion
Bathroom installations – complete renovations across London and Home Counties

About us | Coverage map

Loft conversion and house extension builders South London Croydon

Detailed Service Information

Kitchen Extensions & Renovations | London & Home Counties

Transform the heart of your home with comprehensive kitchen services. From single-storey extensions to complete refurbishments, we create functional spaces for modern family living.

● Kitchen extensions – combine renovation with space expansion
● Side return kitchen extensions – popular in Victorian terraces
● Open-plan kitchen-diners – knock-through designs for family living
● Complete refurbishments – new units, worktops, appliances
● Budget to luxury options – tailored to your requirements
● Full plumbing & electrical – from design to completion

Learn More About Kitchen Renovation →

Bathroom Renovation | London & Home Counties

Modern, functional bathrooms installed by experienced professionals:

● Complete bathroom renovations – including tiling, plumbing, and electrical work
● Small bathroom optimization – maximize space in compact London properties
● Family bathroom installations – safe, practical designs for growing families
● Luxury bathroom upgrades – premium finishes and modern features

Professional bathroom installations across Greater London and the Home Counties

View Our Bathroom Projects →

Living Room Extensions | London & Home Counties

Transform your living and sleeping spaces into bright, welcoming family areas:

● Open-plan living conversions – knock through walls to create spacious areas
● Master bedroom renovations – create luxurious private retreats
● Children’s bedroom designs – safe, functional spaces for growing families
● Period property restoration – sympathetic renovations of Victorian and Edwardian homes
● Modern living room redesigns – contemporary layouts for family life
● En-suite bedroom additions – add private bathrooms to master bedrooms

Specializing in period properties across Surrey, Kent, Essex and London

Explore Living Room & Bedroom Ideas →

Loft Conversion | London, Surrey & Kent

Unlock valuable space with our expert loft conversion services:

● Dormer loft conversions – add extra headroom and natural light
● Mansard loft conversions – maximize usable floor space
● Hip-to-gable loft conversions – perfect for semi-detached properties
● Velux loft conversions – cost-effective way to create extra bedrooms

Professional loft conversions across London, Surrey, Kent and surrounding counties

View Our Extension Projects →

House Extension Builders | London & Home Counties

Transform your living space with professionally designed and built house extensions:

● Single storey extensions – perfect for kitchen extensions and open-plan living
● Double storey extensions – ideal for growing families needing extra bedrooms
● Side return extensions – maximize space in Victorian terraced houses
● Rear extensions – create bright, spacious family areas

Serving homeowners across Greater London, Surrey, Kent, Essex and Hertfordshire within our 30-mile coverage

Discover Loft Conversion Possibilities →

Garden Buildings | Surrey, Kent & Essex

Extend your living space into the garden with quality outdoor buildings:

● Garden offices – perfect for working from home
● Garden studios – creative spaces and hobbies rooms
● Summer houses – relaxing outdoor retreats
● Decking and patios – create entertaining areas for family and friends

Quality garden buildings and landscaping across Surrey, Kent and Essex

Get Inspired for Your Garden →

Areas We Serve: 30-Mile Radius from London

With over 30 years serving London and the Home Counties, we’re proud to offer reliable building services within a 30-mile radius of Central London, including:

Greater London:

South London (Croydon, Bromley, Beckenham)
South East London (Greenwich, Lewisham, Eltham)
South West London (Wimbledon, Kingston, Richmond)
Central London (selective projects)

Kent:

Sevenoaks
Tonbridge
Tunbridge
Wells
Dartford
Gravesend
Orpington
Maidstone (selected areas)

Surrey:

Reigate
Redhill
Dorking
Guildford
Epsom
Ewell
Sutton
Carshalton
Woking
Weybridge
Esher

Essex & Hertfordshire:

Brentwood
Chelmsford areas
Watford
St Albans

Buckinghamshire

Selected projects in High Wycombe
Amersham
Beaconsfield

Check the map below to see if we cover your area:

Ready to Transform Your London Home?

Whether you’re planning a house extension in Surrey, loft conversion in Kent, or kitchen renovation in Essex, we’re here to help turn your vision into reality within our 30-mile service radius.

Get Your Free, No-Obligation Quote

Call or text Jozeph directly 07860 937539.
Email us:

Service areas: London, Surrey, Kent, Essex, Hertfordshire, Buckinghamshire

Access Our Contact Form

Why Homeowners Across London Choose J&D Building:

Direct Communication – Deal with the owner, not project managers
30+ Years Experience – Proven expertise in London property renovation
30-Mile Coverage – Serving London, Surrey, Kent, Essex, Herts & Bucks
Quality Materials – Trade discounts passed on to clients
Fully Insured – Complete peace of mind for your property
Transparent Pricing – Clear, detailed quotes with no hidden costs
Multi-County Knowledge – Understanding of London and Home Counties building regulations

Ready to start your project? Contact us today for an honest consultation and competitive quote.

J&D Building – Your trusted partner for quality home improvements across London and the Home Counties.

Contact