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Expert Heritage Building Conservation And Restoration Services: Multifix Group

30 years’ experience

Real-time pricing

95% repeat client rate

Quality over quantity

Specialised Expertise, Meticulous Craftsmanship

We’ve worked with local authorities, conservation architects and engineers on some of NSW’s most iconic buildings to preserve their historical significance and bring them back to their former glory. If you want an experienced contracting company that specialises in heritage building conservation and restoration, the Multifix Group would love to help.


Heritage Reports

While documenting the historical significance of a site, building or structure, we identify the heritage value, architectural features and historical context to guide our restoration process.

Initial Investigation

We assess the existing condition and do a thorough examination of materials, structural integrity and any damage or deterioration. From here, we can work out the full scope of work, informing our decision-making throughout the project.

Lab Testing

We analyse the composition of bricks, mortar, paints and finishes to get the appropriate restoration materials and techniques, ensuring we match the historical context of your site.

Rendered Facades

By repairing and recreating plaster or stucco facades, we’re able to match the original design and aesthetics, including replicating decorative elements, ashlar-render or any special textures.

Face Brick Facades

We clean, repoint and replace damaged bricks to restore surfaces and preserve architectural value, including sandstone, brickwork and mineral paint application. As part of our heritage building restoration in Sydney, we ensure each façade restoration blends seamlessly with the original craftsmanship.

Timber And Steel Joinery

At Multifix Group, we preserve or replicate windows, doors and other architectural elements with period-appropriate materials and craftsmanship to maintain historical integrity.

Crafting Continuity For Future Generations

When it comes to heritage building restoration in Sydney, the work goes far beyond surface-level repairs. Our approach focuses on retaining the original look while ensuring the structure remains safe and usable for decades to come.

Whether it's a federation-era residence in Paddington or a sandstone civic building in The Rocks, we align restoration techniques with strict heritage regulations and community expectations.

Our team understands the need to strike a balance between authenticity and functionality. 

The Multifix Group works closely with heritage consultants and local councils to ensure that heritage building conservation and restoration meets not only visual but also structural integrity standards. Every carved cornice, window sill or moulded bracket tells a story, and we help preserve that narrative.


Our Environmentally-Responsible Heritage Work

Sustainability is a key aspect of our heritage practice. Using breathable materials like lime-based plasters and finishes, we prevent moisture entrapment that often leads to structural decay.

This is particularly important when conducting lime mortar repointing for heritage buildings, where using inappropriate cementitious mortars can irreversibly damage old brickwork.

We only use traditional materials tested and matched in our lab to complement the building's original construction. Over time, we’ve become trusted professionals in sustainable restoration that supports long-term preservation.

0414 660 016

Our Full Range Of Heritage Building Conservation And Restoration Services

  • Brick repointing and tuckpointing
  • Rendered facades restoration and cracks re-enforcement using cement-free materials
  • Ceiling, cornices and walls restoration
  • Lime mortar repointing heritage buildings
  • Timber joinery repairs and restoration
  • Rising damp solutions
  • Salt Attack Solutions
  • Project management and complete project restoration packages
  • Initial site investigation and heritage reports
  • Investigation of original materials used and laboratory analyses
  • Peelaway Paint Removal System
  • Mineral Paint application
  • Brick staining
  • Wall crack monitoring, repairs and strengthening

Community And Cultural Sensitivity

Restoring heritage is not just a technical job, it’s a cultural responsibility. We understand the emotional value these sites hold for communities.

Our work respects cultural context, especially in areas where heritage intersects with local history, including old churches, schools or civic buildings that still play an active role today.

Heritage Façade Cleaning And Repair Services

For properties requiring heritage façade cleaning and repairs, we carry out a thorough analysis before any chemical or mechanical treatment is applied. Historic facades are often coated with layers of pollution, old paint or algae growth that requires careful removal to avoid permanent damage.

We use pH-balanced, non-invasive cleaning agents and low-pressure steam treatments to bring back the architectural charm of Sydney’s historic properties.

Our restoration team ensures each building façade is treated individually, according to its age, material type and current condition.

Get In Touch

Get In Touch For Heritage Building Restoration In Sydney

Preserve the beauty and legacy of your property with heritage building restoration in Sydney you can trust. At Multifix Group, we combine traditional craftsmanship with modern restoration techniques to deliver unmatched quality and long-lasting results.

Whether you need heritage façade cleaning and repairs, detailed lime mortar repointing for heritage buildings or complete heritage building conservation and restoration, our experts are ready to help.

Contact Multifix Group today at 0414 660 016 or email us at info@multifixgroup.com.au to schedule a site inspection or request a free consultation. Together, let us bring your historic building back to life.

Latest Projects

We value your time and budget. That’s why we prioritise detailed front-end planning and preparation alongside clear delivery goals for every project.


3 Amhurst Street Cammeray Tarella House circa 1880

5 Station Street Mittagong Former Post Office circa 1890

29 Challis Ave Potts Point circa 1889

230 Sussex Street Sydney Foley Bros circa 1886

9 Fraser Street Randwick Melrose

The Manse Surgery 1 Regent Street Paddington

Frequently Asked Questions (FAQs)

Heritage building restoration involves carefully repairing, stabilising and preserving original architectural elements while maintaining the building’s historical significance. Unlike standard renovations, which often replace old materials with new ones, heritage restoration focuses on authenticity. The goal is to respect historic construction methods, protect original stone, brick or timber and ensure the structure remains true to its era. This specialised approach is essential for heritage building restoration services in Sydney, where many buildings carry significant cultural and architectural value.

Contractors working in heritage building conservation and restoration should have specialised training in traditional construction techniques, experience with historic materials and a deep understanding of heritage guidelines and conservation principles. Ideally, they should work closely with conservation architects, follow NSW heritage regulations and demonstrate proven experience restoring stonework, façades, timber and lime-based structures. These qualifications ensure that repairs meet strict preservation standards.

Before any conservation work begins, experts carry out a detailed condition assessment. This includes inspecting the building’s structural integrity, identifying deterioration patterns, mapping moisture issues, analysing previous repairs and documenting original materials. For heritage buildings, specialists often use non-invasive testing methods to avoid damaging fragile surfaces. This assessment helps create a customised restoration strategy that protects the building’s long-term stability.

Heritage façades, stonework and detailed masonry should be professionally inspected every 2–5 years, depending on exposure, age and environmental conditions. Regular maintenance helps prevent moisture damage, surface erosion, biological growth and cracking. For properties requiring heritage façade cleaning and repairs, consistent inspection ensures small issues are addressed early, preserving both structural integrity and historical appearance.

Professional heritage restoration plays a crucial role in protecting Sydney’s historic buildings. Experts understand original building techniques, appropriate materials and conservation regulations, allowing them to stabilise ageing structures without compromising authenticity. Proper restoration prevents irreversible damage, enhances longevity and ensures that significant architectural features remain intact for future generations. It also supports heritage compliance and adds long-term value to the property.

Lime mortar is softer, more flexible and significantly more breathable than modern cement mortar. While cement traps moisture and can cause cracking or damage to old brick or stone, lime mortar allows vapour to escape naturally, helping heritage buildings manage moisture the way they were originally designed to. This makes it the preferred choice for lime mortar repointing heritage buildings, as it helps preserve the structure without stressing fragile substrates.

Specialists use gentle, non-abrasive cleaning and repair methods to ensure delicate surfaces remain unharmed. These may include low-pressure water washing, steam cleaning, poultice-based stain removal, micro-abrasion, stone patching and traditional masonry repair techniques. Every method is selected based on the material’s age, condition and historical significance. For projects involving heritage façade cleaning and repairs, the goal is always to clean thoroughly without stripping away original character.

Lime mortar repointing involves removing deteriorated mortar joints and replacing them with fresh lime-based mortar that matches the building’s historic composition. This process is essential because lime mortar protects fragile brick and stone by allowing them to move, breathe and release moisture naturally. Using cement instead can trap moisture and accelerate decay, making proper lime repointing one of the most important steps in preserving heritage masonry.

Most heritage building conservation and restoration projects follow a structured process:

  • Detailed condition assessment
  • Documentation of original materials and features
  • Selection of appropriate traditional methods and lime-based materials
  • Careful façade cleaning, repairs and stabilisation
  • Lime mortar repointing where required
  • Protective treatments and long-term maintenance planning

Each step is designed to preserve authenticity while improving structural resilience, ensuring the building remains safe, stable and historically accurate. 

Contact the Multifix Group today to know more: 0414 660 016 or info@multifixgroup.com.au