Changing an existing home
Renovation building begins with what is already there. Structure, earlier additions, uneven framing and hidden services can all shape the best way forward. Tony's experience across alterations and detailed residential construction helps turn those constraints into clear, workable decisions.
Mallon Building undertakes home renovations and house alterations from Milton to Dunedin, including changes to room layouts, structural alterations, exterior upgrades and projects that combine existing work with new construction.

What an alteration can involve
- Reworking rooms to create a more useful layout
- Opening, dividing or connecting living spaces
- Renovating older houses and previous additions
- Structural alterations and associated building work
- Exterior cladding, roofing, window and door work as part of a wider project
- Coordinating trusted subcontractors through the build
Older homes need considered decisions
Older homes often carry evidence of several generations of building. Walls may not be where the drawings suggest. Materials and levels change. Previous repairs can create new questions. The answer is not to promise that nothing unexpected will happen; it is to have someone capable of assessing what is found and explaining the practical options.
Tony's approach
Mallon Building considers likely possibilities when pricing and uses subcontractors Tony knows and trusts. Clients have described Tony as honest, reliable, communicative and ready to listen while offering useful suggestions.
“He was always ready to listen to my ideas and was able to make relevant suggestions when required.”Major home renovation client
Related renovation work
A wider alteration may include a bathroom renovation, a home extension, or conditions better suited to Mallon Building's problem-solving experience.
Renovation questions
Do you do renovations in Dunedin?
Yes. Mallon Building is based in Milton and serves Dunedin and the practical area between Dunedin, Milton and South Otago.
Do you renovate older houses?
Yes. Altering existing homes, including older buildings and complicated layouts, is a core part of Mallon Building's experience.
Can you coordinate other trades?
Mallon Building uses quality subcontractors Tony knows and trusts and coordinates the building work as part of the project.
How do I start?
Call Tony on 021 449 520 and describe the property, location and change you are considering.