Hampshire & South Coast Builders | Extensions • Renovations • Structural Works • Groundworks
Call: 07501 239096 | Email: info@jjubsconstructiongroup.uk
Builders in Southampton & Fareham
JJUBS Construction Group helps homeowners extend, renovate and improve their properties across Southampton, Fareham and surrounding Hampshire. Our work includes house extensions, structural alterations, groundworks and internal finishing. Explore our projects or contact us to discuss your plans.
The standard your project deserves
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We do more than complete jobs — we deliver carefully managed, professionally prepared projects that clients can feel confident in from day one.
With a strong background in groundworks and structural preparation, we understand how important it is to get the early stages right. From foundations and drainage levels to full site preparation, we make sure every detail is handled properly, helping the rest of the project run smoothly, efficiently, and reliably.
Whether it’s a home extension, a large garden transformation, or external improvement works, we bring the same care, organisation, and attention to detail to every project — with a focus on doing the job properly the first time.
Fully Insured
For building, groundworks, and structural preparation.
Clear Quotations
Detailed pricing before work begins, so you know what is included.
Tidy, Respectful Sites
We treat your home like it matters — because it does.
Extension Specialists
JJUBS Construction Group builds house extensions and carries out associated renovation work in Southampton, Fareham and surrounding Hampshire areas.
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​From groundworks and foundations to structural openings and internal finishing, we agree the scope of your project before work begins. Explore our extension services and see our kitchen extension in Warsash.
More space in the home you know
A house extension can create a larger kitchen, an open-plan living area, a utility room or additional space for family life while keeping you in your existing home and neighbourhood.
Plan around your property
The right design depends on how you use the space, your budget and the practical requirements of the building. We discuss your plans, access, structural work and finish before agreeing the scope and quotation.
Build from the foundations onwards
Our extension work includes groundworks, drainage, foundations, structural openings and internal finishing, as agreed for each project. Visit our house extensions page for the project process, common questions and an example from Warsash.
The JJUBS Customer Commitment
1. Discuss and plan
We discuss your requirements, budget, priorities and timescale, then review the site and information needed to plan the work.
2. Agree the scope and quotation
Your quotation sets out the agreed work, materials and pricing. We discuss the programme before work starts so you understand the sequence and expectations.
3. Build and keep you informed
We organise the site, respect your property and keep you updated as the work progresses. Preparation, structural work and finishing are checked throughout the project.
4. Inspect and hand over
We inspect the agreed work, walk through the result with you and discuss any reasonable concerns. We remain available for advice and further assistance after completion.
Why homeowners choose JJUBS
We provide building, renovation and external improvement services across Southampton, Fareham and surrounding Hampshire, with attention to preparation, communication and the finished result.
Clear communication and quotations
We discuss what you want to achieve, explain the agreed work and keep you informed as the project progresses. Your quotation sets out the scope, materials and pricing before work starts.
Careful preparation and respectful sites
Ground conditions, drainage, foundations and structural support matter as much as the visible finish. We plan the work, organise the site and take care when working in and around your home.
Building services for the whole project
Our work includes house extensions, renovations, structural openings, groundworks, driveways, patios and hard landscaping. View our projects or contact us to discuss your plans.