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Business Details
26 Years
experience
Trusted Building Contractors in Winchester
Established in 2000, DJB Construction South has built a reputation for delivering high-quality building solutions across Hampshire. With over three decades of industry experience, our team specialises in new builds, extensions, loft conversions, and comprehensive refurbishment projects. We prioritise transparent communication through regular client meetings and direct access to our director, Dave Osborne-Brown. Accredited by the Guild of Master Craftsmen and the Federation of Master Builders, we maintain rigorous quality standards while offering tailored project management services.

Our approach combines traditional craftsmanship with modern techniques, ensuring each project meets exacting specifications. With dedicated office support available Monday-Friday 8:30-17:00, we provide consistent client assistance throughout the construction process. Our fixed-price quotations and structured payment plans offer financial clarity, while our network of vetted subcontractors guarantees workmanship excellence across all project phases.
Services
New Builds Extensions Loft Conversions Kitchens Bathrooms Refurbishments Landscaping Project Management Design Service Building Regulations
Details
  • Year established: 2000
Highlights and features
  • We offer 30+ years of director-led construction expertise
  • Our fixed-price quotations guarantee no hidden costs
  • We provide direct access to project director Dave Osborne-Brown
  • Our team includes a qualified quantity surveyor for accurate costing
  • We maintain industry accreditations from Master Builders organisations
Associations and certifications
  • Guild of Master Craftsmen
  • Federation of Master Builders
Services
New Builds
We deliver bespoke new build projects from concept to completion. Our experienced team manages planning applications, building regulations, and construction phases for residential and commercial properties. Clients benefit from our director-led approach and fixed-price quotations that ensure budget certainty throughout the project lifecycle.
Extensions
Specialising in property extensions that enhance living space and property value. Our service includes design consultation, planning permission assistance, and full construction management. We maintain open communication channels with regular progress updates and client meetings throughout the extension process.
Loft Conversions
We transform underutilised loft spaces into functional rooms while ensuring structural integrity. Our comprehensive service covers design surveys, planning applications, and building regulation compliance. Clients receive detailed cost breakdowns and project timelines before work commences.
Project Management
Our director-led project management ensures seamless coordination from initial design to final completion. We handle contractor scheduling, quality control, and client communication. This service provides peace of mind through regular progress reports and transparent budget management.
Design Service
We offer professional design services including detailed surveys and custom drawings. Our team prepares planning applications and building regulation submissions, working closely with clients to realise their vision. The service includes revisions until final approval is obtained.
People
Dave Osborne-Brown
Business Owner
With over 30 years in construction, Dave established DJB in 2000. He oversees all projects personally, ensuring quality standards and client satisfaction. His hands-on approach combines carpentry expertise with comprehensive industry knowledge.
Nick Taplin
Quantity Surveyor
Nick has provided precise cost management since 2004. His 40-year industry experience ensures accurate quotations and structured invoicing. He specialises in clear financial documentation throughout project lifecycles.
Trina Masham
Personal Assistant
Trina has managed office operations since 2009. She coordinates client communications, project logistics, and team organisation. Her approachable nature and attention to detail ensure smooth project execution and client support.
Questions
What building services do you offer?
We provide comprehensive services including new builds, extensions, loft conversions, kitchen/bathroom installations, refurbishments, and landscaping projects across residential and commercial sectors.
How are project costs determined?
Each project receives a detailed fixed-price quotation after site assessment. Costs consider materials, labour, and project complexity with transparent breakdowns provided before contract signing.
Do you handle planning permissions?
Yes, our design service includes preparing and submitting planning applications, along with building regulation documentation, ensuring compliance with local authority requirements.
How is project progress managed?
Projects are director-led with regular client meetings. We provide fortnightly invoices matching quotation structures and maintain open communication channels for ongoing updates.
What quality assurances exist?
We're accredited by the Guild of Master Craftsmen and Federation of Master Builders. All subcontractors undergo vetting for insurance and quality standards before project involvement.
Reviews (6)
Winchester White
Jan 28, 2021 Report
DJB undertook a building renovation project for me in 2019. I would liken DJB to Ryanair: Functional, Safe, Poor Experience, Disappointing Customer Service, and Delays. If you wish to work with DJB here is my advice:
1. Evidence of recent work: Ask for photos of recent work they have done and ensure you also speak to the people whose photos they are showing you. There are no dates for the photos their website and when I last looked no recent testimonials, so who knows when those pictures were uploaded. Credit where credit is due, they have built something amazing for us, but surprisingly have
Miles Robinson
Oct 31, 2020 Report
I was originally recommended by a friend to contact DJB Builder about removing an internal wall and installing a new kitchen dinner. After meeting with the Project Manager, the new kitchen dinner quickly turned into an extension of the property, which then lead to an entire downstairs refurbishment.
DJB scheduled the project detailing the breakdown of costs into an easy understandable spreadsheet.

This made it easy to see where every penny was being spent and where possible savings could be made. The project was scheduled to be completed in 12-16 weeks and took a little over 14 weeks to complete
Kev Galway
Sep 11, 2020 Report
Employed DJB To build a 2nd storey extensions over an existing ground floor extension (summer 2020). From the initial plans from the architect, DJB were very helpful in providing insight on the plans, and asking me questions on fixtures / fittings etc - before they were even commissioned for the job. The reason I chose DJB in the end is because of the ambiguity in other builders quotes, most just gave me a price and not a detailed list of what was included and what wasn't. At least then I knew there shouldn't be any (financial) surprises. I was quoted a maximum of 12 weeks to complete the work
Kev Smart
Sep 21, 2019 Report
Would not recommend!! Lack of people on site, storage of materials from other jobs on my property!! Health and safty questionable!! Staff not getting paid correctly = poor workmanship!!
Joanna Mullineux
Aug 16, 2019 Report
We enlisted DJB to renovate the whole of the downstairs of our house including a new kitchen, downstairs cloakroom and bathroom upstairs. We were originally told the build would take 8-10 weeks in the end it was 22 weeks. The sub-contractors they used were incredibly unreliable we never knew who was turning up on site and when. Communication was terrible about delays and made the whole process more stressful than it needed to be. The standard of work was ok, but the attention to details was poor. I would not recommend using them.
Philip Knight
May 28, 2019 Report
DJB completed renovation works at our office. They were accommodating with regard to fitting in with our working hours to give least disruption possible. (Mainly weekend work). Work was completed to an excellent standard on time and priced to the quote provided in advance. I highly recommend Dave and his team