JNJ Building Services Ltd is a family-run, multi-award-winning residential construction company based in West London.
Established in 2014, we have over 11 years of experience transforming family homes. We specialise in home extensions, loft conversions, internal refurbishments, and structural works.
Our team only uses City & Guilds qualified tradesmen, in-house architects, engineers, party wall surveyors, and a trusted private building control officer.
We follow all construction H&S laws to protect our team and help clients understand their responsibilities.
Using accurate costing and accounting software, we ensure transparency and efficiency on every project. We’re fully insured with public liability, employee, and all-risks cover.
For the past 5 years, we’ve supported the food bank charity Surplus to Supper, volunteering weekly and donating annually.
Working with Which? Trusted Traders has been a great experience—they truly put the consumer first.
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