Quality Products,Backed by Personal Service
Portable and practical solutions, from buildings and amenities through to essential site products
Our Products
Australian-made building solutions. Browse by category below.
Sucasa Class 1a Buildings
High-quality, self-contained granny flats designed for comfort and practicality — perfect for extra living space or rental income.
Expandable Granny Flats
Innovative expandable designs that maximise your space. Easy to transport and quick to set up with a larger footprint once installed.
Portable Amenities
Fully equipped portable amenity blocks including toilets, showers, and washrooms — ideal for construction sites and events.
Container Domes
Durable and versatile container dome structures suited for storage, workshops, and commercial applications.
Stormwater Pipes & Headwalls
Australian-made HDPE stormwater pipes with matching headwalls, culvert kits, seals and lubricant for residential and commercial drainage.
Shower Enclosures
Freestanding shower enclosures for portable amenities, site facilities and other compact applications. Frame, glass, tray and tapware in one unit — no tiling needed.
Diamond Grid
Heavy-duty surface stabilisation grids made from 100% recycled polypropylene — rated up to 7,000 tonnes/m² for civil, mining, and landscaping applications.
What Our Clients Say
Don't just take our word for it - hear from our satisfied customers
"We waited 6 months before doing this review, so we can assure you the quality of the portable classroom we purchased from Seven Star Infrastructure. The portable was customised to our business needs and structure of our home."
Rouba H
Local Guide · Google Review
"We've been looking at having a granny flat built for visiting relatives & to earn some additional income through short term lets. We met with Gavin and the team at the weekend and were incredibly happy."
Ian Hughes
Google Review
"Fantastic service and top quality products to Australian standards. Outserviced the competitors — thanks for being an honest and trustworthy company to deal with! Highly recommend."
Morgan Crouch
Local Guide · Google Review
Ready to Start Your Project?
Contact us today for a free consultation and estimate. Let's bring your vision to life!