Expert Design & Build Services in Putney

JNJ Building Services - Award-winning Which? Trusted Traders​

Expert Design & Build Services in Putney

JNJ Building Services - Award-winning Which? Trusted Traders​

Expert Design & Build Services in Putney

JNJ Building Services - Award-winning Which? Trusted Traders​

Expert Design & Build Services in Putney

JNJ Building Services - Award-winning Which? Trusted Traders​

Transform your Putney home with West London’s award-winning design and build specialists. From architectural planning to final handover, we deliver exceptional building projects across Putney and surrounding areas.

Why Putney Homeowners Choose JNJ Building Services

With over 70 years of combined construction expertise and Which? Trusted Trader status, we’re the building contractors Putney families rely on for stress-free home transformations. Our award-winning design team brings your vision to life, whether you’re planning a single storey extension, complete house renovation or luxury refurbishment.

More than 10 Years Established

Multi Award Winnning

In House Architects & Structural Engineers

Family Run

Costing & Management Software

City & Guilds Qualified Trades

Fully
Insured

Complete In-House Expertise Under One Roof

Unlike other building contractors, we handle everything internally – no subcontractors, no miscommunication. Our Putney-based team includes:

  1. Chartered Architects for creative, planning-compliant designs
  2. Structural Engineers ensuring robust, future-proof builds
  3. Party Wall Surveyors managing neighbour agreements seamlessly
  4. Planning Permission Specialists navigating Putney Council requirements

This integrated approach means your project flows smoothly from concept to completion, with one trusted team accountable at every stage.

LOFT CONVERSIONS

EXTENSIONS

FULL REFURBISHMENTS

DEVELOPMENTS

Single & Two Storey Extensions Putney​​

Adding space to your Putney property doesn’t mean compromising on character. We design extensions that enhance your home’s architecture whilst creating the room you need – whether that’s a bright kitchen extension overlooking your garden or a two storey addition providing extra bedrooms and bathrooms.

Our extensions blend seamlessly with Putney’s diverse property styles, from Victorian terraces near Putney Bridge to Edwardian semis in West Putney and elegant townhouses along Putney Hill.

Complete Home Renovations & Refurbishments

Thinking of renovating your Putney home? We specialise in full-scale house renovations that transform tired properties into stunning modern homes. From period property refurbishments that respect original features to contemporary makeovers, we project manage everything – structural work, electrics, plumbing, plastering, decorating and landscaping.

Recent refurbishment projects span Putney Heath, East Putney, Roehampton, West Hill and Southfields, with particularly strong experience renovating properties in conservation areas where planning sensitivity matters.

Basement Conversions & Loft Extensions

Maximise your Putney property’s potential without extending your footprint. Our basement developments create incredible living spaces – home cinemas, gyms, playrooms or self-contained guest suites. Loft conversions add valuable bedroom space, perfect for growing families in Putney’s competitive property market.

Kitchen & Bathroom Renovations

Transform the heart of your home with a bespoke kitchen renovation, or add luxury with an en-suite bathroom installation. We handle design, structural alterations, plumbing, electrics and finishing – coordinating every trade to deliver on time and to budget.

Building Services Across Putney, West London

Serving Putney & Neighbouring West London Areas

Our building services cover Putney and surrounding neighbourhoods including:

  • Central Putney: Putney High Street, Putney Bridge, Lower Richmond Road, Putney Common
  • North Putney: West Putney, Putney Vale, Roehampton Vale, Roehampton
  • East Putney: East Putney, Wandsworth Park, Southfields, Wimbledon Park
  • West Putney: Putney Heath, West Hill, Putney Hill, Tibbet’s Corner

We also serve Barnes, Wandsworth, Fulham, Wimbledon, Richmond and across SW15, SW18, SW19 and SW13 postcodes.

Gold Rated

As approved members of the Considerate Constructors Scheme, we take neighbourhood impact seriously. Clean sites, respectful working hours, and minimal disruption to Putney residents – including managing parking, noise and waste responsibly.

Which? Trusted Traders

✅ Independently Vetted & Approved

✅ Committed to Quality & Professionalism 

✅ Trusted by Homeowners Nationwide

✅ Verified Customer Reviews

✅ Strict Code of Conduct ensuring high standards on every project.

WHAT OUR WONDERFUL CLIENTS SAY

Bianca Sainty
Bianca Sainty
Mum Client
This is now 3 projects completed with JNJ, and each time has been incredible. The family team has really looked after us. Always contactable and professional. They improve each time. They have restored our faith in builders!
Fred Morgan
Fred Morgan
Teacher Client
Outstanding! I have never failed to be hugely impressed with their professionalism. The team is always friendly, contactable, and has creative and practical ideas making them able to work to a budget for excellent results.
Olivia Fawcett
Olivia Fawcett
Finance Client
I cannot recommend JNJ more highly. Their professionalism and work quality were certainly the highest standard I have experienced from builders based in London. They were a pleasure to work with throughout the duration of our project.
Anna Bules
Anna Bules
Co-Founder, Designer - Run For The Hills
Being designers, we can understand how complicated we can make projects. Working with JNJ, I can say they are the perfect team, not only have they worked with us on commercial projects they are so good we have completed 2 of our own houses with them. We highly recommend!
Georgina Turvey
Georgina Turvey
Founder/Director - PEEK Architecture
Working in construction and designing complicated projects, it’s hard to find local and reliable contractors, not with JNJ. We have now been working with them for 10 years handling over many stunning projects for our clients. It’s been a pleasure working with them.
Marina Strotz
Marina Strotz
Associate Director - Intervention Architecture
Being based in Birmingham, we took on a project in Putney SW London. Not knowing any contractors, we came across JNJ. Straight from the beginning, we knew this was the team we wanted to work with. This is by far the best construction company we’ve ever worked with.

We only use
City & Guilds
Qualified Tradesmen

OUR CORE VALUES

1. STRIVE TO BE BETTER THAN OUR PREVIOUS BEST

By working smarter through seeking new ideas.
Learning ways to improve ourselves by reviewing and updating our practices.

2. DELIVER A GREAT CLIENT EXPERIENCE

By operating as authentic, trusted professionals with business-like conduct on the worksite, in the office, and the community.

3. ACT RESPONSIBLY

In a no-blame culture – by operating with integrity, owning mistakes, and using feedback to improve where everyone takes personal ownership to achieve targets.

4. BEING A RESOURCEFUL AND RESILIENT TEAM

By fostering a caring ethos that encourages loyalty, productivity, and personal aspirations.

5. PURPOSE DRIVEN NOT PROFIT DRIVEN

By proudly delivering quality finishes, within a realistic budget and achievable timescales.

SUPPORTING MENTAL HEALTH IN CONSTRUCTION

JNJ Building Services Ltd
Phone office: 020 8050 9523
Email: enquiries@jnjbuilding.co.uk
Address: 277–279 Chiswick High Road, Chiswick, London, W4 4PU
08933599, Registered in England, Wales, Northern Ireland