Renovations.
Alterations.
The tricky stuff.
Experienced residential building for renovations, bathrooms, extensions and challenging projects from Milton to Dunedin.
Registered. Award-winning.
Mallon Building Ltd is a Registered Master Builders member and received a Southern Region House of the Year Gold Award in 2014.
Building new is one thing. Changing an existing home takes experience.
Older homes are rarely straight, square or predictable. Previous work can reveal surprises. A good alteration starts with understanding how the house works now—and making sound decisions about what changes next.
Tony Mallon is a trade-qualified carpenter with more than 30 years' experience across domestic construction, from alterations through to highly specified architectural homes.
Renovations & alterations →Good work begins with the right judgement.
Renovations & alterations
Rework existing homes, improve layouts and bring older spaces up to date.
Explore →Bathroom renovations
Compact projects where planning, sequencing and trade coordination matter.
Explore →Home extensions
Add useful space while making the new work belong with the existing home.
Explore →Difficult & problem building work
Alterations, surprises and practical building problems that need an experienced eye.
Explore →Selected new builds
Quality residential projects, carefully coordinated from start to finish.
Explore →When the house doesn't read the plans.
Existing buildings bring constraints, unusual details and conditions that only become clear once work begins. Experience earns its keep in the decisions that follow: protecting what is sound, fixing what is not, and coordinating the right trades at the right time.
Got a tricky project? Talk to Tony →Real projects. Built by Mallon Building.
Landscape deckCrafted timber work shaped to its setting
Terraced timber stepsStrong geometry, carefully finished
Complex constructionExperienced hands on unusual workSmall room. A lot to coordinate.
Bathrooms bring building, plumbing, electrical work, waterproofing and finishing into a tight space. Good sequencing matters—especially when the room sits inside an older home.
Bathroom renovations →The builder you speak to is the builder who understands the job.
Tony established Mallon Building with Rebecca in 2003. His background spans alterations, farm and industrial building, new homes and detailed architectural work.
The approach is practical: think through the possibilities, use trusted subcontractors and keep clients informed about what happens next.
Meet Mallon Building →“We found Tony to be honest, reliable and trustworthy and the work completed by him was of a very high standard.”Home alteration client
Building from Milton to Dunedin.
Mallon Building is based in Milton and works across the practical service area between Milton, Dunedin and South Otago. If your project is in or around Dunedin, call Tony and talk through the location and scope.
Discuss your project →