Call Now
Website
Call
Business Details
Expert Construction & Renovation Services in London
At J23 Builders, we pride ourselves on delivering comprehensive design and build solutions tailored to meet the unique needs of our clients. Our expertise spans structural works, planning compliance, and architectural projects, ensuring seamless project delivery from inception to completion. With a proven track record in both commercial and domestic sectors, we offer a one-stop service that includes hard and soft landscaping, plumbing, electrics, and bespoke renovations. Our team collaborates closely with clients' design teams to maintain creative integrity while adhering to strict timelines and budgets.

Backed by decades of experience, we prioritise quality craftsmanship, attention to detail, and client satisfaction, ensuring every project is completed to the highest standards. Our commitment to transparency and reliability has earned us a reputation as a trusted partner for property refurbishments, extensions, and commercial renovations across London.
Services
Property Refurbishment House Extensions Loft Conversions Commercial Renovation Maintenance Services
Highlights and features
  • We offer 20+ years of experience in London construction projects.
  • Our team delivers end-to-end design and build solutions.
  • We guarantee clean, punctual, and detail-oriented workmanship.
  • We specialise in both domestic and commercial sector renovations.
  • We maintain transparent communication and fixed timelines.
What people say
Great finish Professional team Reliable and punctual Creative solutions Highly recommend
Services
Property Refurbishment
We specialise in complete property refurbishments, managing plumbing, electrics, carpentry, and kitchen/bathroom installations. Our service ensures homes are modernised to the highest standards while meeting client specifications. With expertise in North West London's property market, we deliver tailored solutions that enhance property value and functionality.
House Extensions
Our full-service house extensions include planning assistance and construction. We help homeowners maximise property value through bespoke extensions, addressing structural requirements and design compliance. Clients benefit from our local knowledge and commitment to minimising disruption during construction.
Loft Conversions
We transform unused loft spaces into functional rooms, providing end-to-end solutions from design to completion. Our conversions adhere to building regulations while optimising space efficiency. Clients receive dedicated support to ensure their new living areas meet both practical and aesthetic needs.
Commercial Renovation
We renovate pubs, restaurants, and offices with minimal operational disruption. Our commercial services include structural modifications and compliance work. Businesses benefit from our experience in delivering functional, compliant spaces that align with brand requirements and industry standards.
Maintenance Services
Our maintenance team handles plumbing, electrical, and general repair work for residential and commercial properties. We prioritise rapid response times and durable solutions. Clients appreciate our flexibility in addressing both minor issues and complex system upgrades.
People
Jacek Ignatiuk
Owner
With over 20 years of experience in London's construction industry, Jacek leads J23 Builders' team of professionals. His hands-on approach ensures every project meets exacting standards. Clients praise his reliability, creative problem-solving, and commitment to delivering projects on time and within budget.
Questions
What areas do you cover for renovation projects?
We primarily serve North West London and surrounding areas, handling both residential and commercial construction projects.
Do you handle both small and large-scale projects?
Yes, we work on projects ranging from £5,000 to £5 million, including property refurbishments, extensions, and commercial renovations.
Can you assist with planning permissions?
We offer full design and build services, including support with planning permission applications and compliance requirements.
What payment methods do you accept?
Please contact us directly for payment arrangement details as this information wasn't specified in the provided text.
Are emergency repair services available?
While we don't explicitly advertise emergency services, we aim to respond promptly to urgent maintenance requests.