Why choose us?

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We are fully qualified, licensed and insured.
- We have a 100% track record on delivering successfully completed projects for our clients.
- We are focused on delivering immaculate construction projects ranging from high-end architectural builds, through to structural renovations and complex, multi-faceted remedial solutions.
- We can help with design, council approvals and breaking down the processes involved in building or renovating your home.
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As we identify them, either during the design phase or throughout construction, we offer practical solutions to add value to your property, often with minimal cost for a maximised uplift in property value.
- Using Buildertrend software, we give you personalised access to the day-to-day tasks, daily project photos, diary entries and a live project management schedule.
- We adapt our approach to suit your lifestyle and needs.
Services for home owners
We offer building services to cater for all your needs
we do
Architectural
We partner with architects to achieve the construction of dream homes and investment projects. Our approach is based on decades of our collective construction experience and a well thought out, planned approach.
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Carpentry
With carpentry being the backbone of most construction projects, let our team steer your project in the right direction with the highest quality craftsmanship.
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Steel Fabrication
Our vast experience with steel projects allows a robust and seamless integration of steel on complex architectural details.
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Remedial
Our extensive skillset offers innovative solutions for the most complex construction issues.
Learn more...Some of our residential projects
Noble St, Mosman
This project required a heritage restoration to the facade and a high-end architectural renovation and extension of this beautiful Mosman home. The final renovation offered the comfort and convenience of modern living while retaining the period charm of high ornate ceilings and detailed timber fretwork. This project included: Ultra-modern electronics setup, Modernised bathrooms and kitchen, Flexible floor plan, Abundant storage, Double (tandem) carport, In-ground swimming pool, American oak flooring
View ProjectBennelong Rd, Cremorne
The Golden Ratio team have recently completed the structural renovation of a 1930's block of 4x 2 bedroom units in Cremorne. The dilapidated building required complex remedial work followed by extensive renovations including bathrooms, kitchens plus the removal of internal fire stairs to allow for new internal laundries. The project also required a rear extension of the units to gain valuable floor space overlooking Willoughby Bay, a complete roof replacement and an update of all electric, plumbing and fire systems to satisfy compliance with relevant codes and standards.
View ProjectIllawarra St, Mosman
This exquisite waterfront property was designed by one of Australia's prominent architects. Now over 20 years old, it was time to update the living areas and repair/ replace the facade and roofing components. Extensive facade work including roofing, rendering, structural steel treatment, timber cladding, adjustable aluminum louvres, new kitchen, balconies including dedicated BBQ area, internal steel glazed doors, aluminium windows, internal microcement finishes, high end joinery throughout as well as plastering, internal and external painting and structural landscaping to complete this project.
View ProjectPrince Albert St, Mosman
'HADLEIGH' a c1908 heritage home in Mosman. This project entailed the restoring of original heritage components such as ornate timber trims, flooring and plaster work. We replaced the kitchen, butler's pantry, laundry, bathrooms, bedroom joinery, over 120m2 of tesselated tile balconies, powdercoated aluminium balustrades, tile and copper roofing and guttering, custom stained glass timber windows and doors throughout and created some new entertaining zones, like our favourite - the rustic recycled timber barbecue area and a one-of-a-kind sandstone firepit. We also dealt with damp issues by installing extensive sub floor drainage and ventilation. The project was finished off with some structural landscaping components, along with horticultural design and implementation.
View ProjectPowderworks Rd, Narrabeen
The Golden Ratio team took on this architectural building project to create a new entertaining area including blackbutt decking, pergola, privacy fencing and an intergrated stereo and lighting system. The team also produced a new front room extension including Australian hardwood timber floors and new timber casement windows and french doors to match the existing building. Other works included a roof replacement, new fascias throughout and complete overhauling of the existing plumbing system. Our 'hands on' experience helped the client and architect during the design phase with certain aspects of this build to minimise costs and maximise the end result.
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