We are Sydney's Home Improvement & Roofing Supplies Specialist with with the best service, experience, and extensive product range.


No 1 Roofing & Building Supplies are the premier manufacturer and stockist of a wide range of home and roofing accessories and supplies in Sydney.

Renovation projects, home improvements, and DIY jobs around the house are an important part of No.1 Roofing and Building Supplies’ business. We’re here to make those sometimes awkward jobs easier and more satisfying.


Insulated panels are the new roof, floor, and wall cladding revolution that is bringing enormous change and improvements to the Australian construction world.

Insulated panels offer a lightweight, high thermal efficiency solution to building and renovating homes.

Insulated panels can save money on installation costs too.

Insulated panels use, in simple terms, a sandwich type construction that may feature a range of materials including foil inner, thermal insulation core of polystyrene (usually), and weather proof external cladding such as steel.

They are engineered fully compliant with the Australian building code and even rated for cyclone zones.

No.1 Roofing and Building Supplies can supply a huge range of insulated panels from different manufacturers.


Firmlok beams are another great Lysaght product made in Australia.

Firmlok beams offer the perfect easy to install framing system for:

  • Patios
  • Carports
  • Verandahs and other house extensions
  • Structural flooring

Firmlok beams are made from zincalume protected by the superior performance of aluminium, zinc, and magnesium alloy coated steel.

The exciting range of Colorbond colours gives you an inspiring palette to play with and complete the picture.

Lysaght uses 100% Australian made steel and is backed by more than 150 years of experience in Australian conditions.

Outstanding strength, weather resistance, and ease of installation make Firmlok a firm favourite for all outdoor extension projects.


Flatdek patio roofing is the ideal solution for all your patio and outdoor extension requirements.

Flatdek is made from Colorbond steel manufactured to AS 1397:2011 standards and coated with a choice from a wide range of exciting colours for an easy to install roofing solution.

The underneath features a smooth, clean gloss finish providing a smart looking ceiling for your patio or outdoor covered walkway.

Spans of up to 4.5 m are possible when used in areas without foot traffic and up to 2.6 m in foot traffic areas.

Flatdek patio roofing is covered by both structural and material warranties to give you real peace of mind.

It’s a great choice for structures without closed walls because it doesn’t require sealing.


Titan roller doors are the perfect finishing touch for residential garages and sheds and commercial premises as well.

Made from tough Australian steel, Titan roller doors are made for Australian conditions.

An extensive and attractive range of fashionable colours, flexible size options and easy opening/closing functionality makes Titan roller doors an ideal choice.

Just look at the features of Titan:

  • Tough, hard wearing Australian steel--BlueScope Colorbond®and Zincalume steel
  • Smooth opening and closing function—5 year warranty of motors
  • Extensive range of security features available
  • Nylon drum wheels for smooth, quiet operation

Sizes range from 950mm to 5100mm wide.

Titan gives you the flexibility to design a garage roller door that is more than just a practical solution.

Titan for roller doors with style.