Hampshire · West Sussex · Wiltshire · Dorset
Home Extensions
in Hampshire
extensions – built to the highest standard across Hampshire, Wiltshire, Dorset, and West Sussex.
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Our Services
Expert Home Extension Builders Across Hampshire
Hampshire Building Co are extension builders working with homeowners across Hampshire and into Wiltshire, Dorset, and West Sussex. Whether you want to extend your kitchen, create an open-plan living area, add a ground-floor bedroom, or make better use of underused space at the rear of your property, we manage the entire process from the first conversation through to completion.
Every extension is planned and built to complement the existing home. We handle structural design, planning applications, groundworks, and all trades required to deliver a finished, liveable space. Our approach is straightforward: clear communication, honest timescales, and work you can stand behind.
We take care of party wall agreements, building regulations, and structural calculations where required – so you understand exactly what is involved before a single brick is laid
The full package
What’s
Included With
Every
Extension
From the first site visit through to the final snag, every Hampshire Building Co. extension is managed in full — no subcontracting surprises, no hidden extras.
- Initial site survey and feasibility assessment
- Planning application support and liaison
- Structural design and engineering
- Groundworks and foundations
- Brickwork, blockwork, and timber frame as appropriate
- Roof structure, weatherproofing, and insulation
- Windows, doors, and glazing installation
- First and second fix — plumbing, electrics, plastering
- Flooring, joinery, and final finishes
- Full site clearance and handover
Home Extension Builders Hampshire Homeowners Rely On
We have built single-storey extensions, double-storey additions, and full wrap-around projects across Hampshire – in Chandler’s Ford, Fareham, Romsey, Winchester, and beyond. Every project is managed end to end, from structural design and planning through to final finishes. If you are looking for extension builders in Hampshire who handle the whole job properly, we are happy to talk through what your project involves.
We only take on work we can be proud of. That means a realistic timeline, an honest quote, and a team that turns up when they say they will. No surprises. Just a beautifully finished extension.
The full package
Explore Our Other Services
Structural Works
Load-bearing work, RSJs, and structural alterations carried out safely and to specification.
Internal Renovations
Full internal transformation, from layout changes through to the finishing touches.
Home Extension Builders Across Hampshire & Beyond
Christchurch, Ringwood, Fordingbridge, Salisbury, Andover, Winchester, Alresford, Alton, Petersfield, Midhurst, Chichester, Emsworth, Fareham, Bishops Waltham, Romsey, Chandler’s Ford
- Christchurch
- Ringwood
- Fordingbridge
- Salisbury
- Andover
- Winchester
- Alresford
- Alton
- Petersfield
- Midhurst
- Chichester
- Chichester
- Emsworth
- Fareham
- Bishops Waltham
- Romsey
- Chandler's Ford
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Serving Hampshire, Wiltshire, Dorset & West Sussex
