Registration and deposits, briefly. Building and Energy's list of the licences and registrations it administers covers builders, painters, plumbers, electrical workers, gasfitters, building surveyors and building engineers, with no separate entry for carpentry. What can apply to a carpenter is building contractor registration, needed when work inside the Building Services Board's area requires a building permit and is worth $20,000 or more, or $50,000 or more for a Class 10a building such as a garage, shed or carport; Kwinana's guidance puts patios in Class 10a as well. A registered contractor's advertising has to carry its registration number, and our page for Perth builders covers that rule and home indemnity insurance. Deposits reach further than registration does. Building and Energy says the Home Building Contracts Act 1991 applies to home building work valued between $7,500 and $500,000, that the most anyone can ask for before work starts is 6.5 per cent of the contract price, and that progress payments can only be requested once services or materials have been provided. In prosecutions brought by Building and Energy and announced in November 2025, Perth Magistrates Court fined two companies and two directors over up-front payment demands on a pergola in Leederville, a louvre shade system in Victoria Park and a louvred patio in Winthrop; in all three cases 80 per cent of the price was demanded before any materials were made. The government consulted in mid-2026 on allowing deposits of 10 per cent capped at $40,000, so the figure may change, and any payment-terms line on your site should stay short and link to Building and Energy's current guidance.
Patios, pergolas and the permit question. Schedule 4 of the Building Regulations 2012 lists building work that doesn't need a permit, and Perth councils summarise the two items carpenters meet most often in the same terms. A freestanding Class 10a structure, a small patio for instance, is exempt at no more than 10 m² and 2.4 m high; a pergola associated with a house is exempt at no more than 20 m² and 2.4 m high; both must sit outside wind regions C and D. Kwinana lists being freestanding as a condition, Joondalup's sheet spells out that a patio attached to the house needs a permit whatever its size, and Mundaring says several structures on one lot are measured by their combined area. Past those limits the owner needs a permit, and Kwinana's sheet sets out the application: a site plan, engineer-certified elevations and sections, and the timber details for a timber patio. It adds that planning approval may be needed too, and that it has to be granted before the building permit application goes in. A carpenter who organises all of that is saving the owner real effort, and the site should say so in plain words.
Decks, from the suburbs to the hills. The Shire of Mundaring's deck page tells residents that installing a deck needs a building permit, that a timber-framed deck is designed and built to AS 1684.2, and that a deck more than 1 m high needs balustrading that complies with the National Construction Code. A deck raised more than 0.5 m above natural ground level with less than 7.5 m to an adjoining boundary needs planning approval or screening under the visual privacy provisions of the Residential Design Codes. The Shire adds that in a bushfire-prone area, decking within 6 m of a house has to be built to AS 3959 where the house was built in 2014 or later, or where the decking work costs more than $20,000. Each council publishes its own guidance, so a deck page that says you check the owner's council requirements before quoting will hold up better than a line promising no paperwork.
European house borer. This beetle attacks seasoned pine, fir and spruce, and the Department of Primary Industries and Regional Development says some areas of metropolitan Perth and regional WA are known to have it. Within its Restricted Movement Zones, the movement, storage, treatment and disposal of pinewood is controlled under the Agriculture and Related Resources Protection (European House Borer) Regulations 2006. The Town of Bassendean tells residents that parts of Eden Hill and Bassendean fall inside one. The City of Gosnells explains that structural timber can't be used in or carried through a zone unless it's suitably treated, and DPIRD asks anyone building to use pine treated to H2 or higher, or another non-susceptible material. The department also asks for pinewood to be kept in a secure building or fully wrapped in plastic, for pine waste to be chipped into pieces smaller than 100 cm³, and for felled pines to be burnt only under a local government permit. If you pull down old pine pergolas or replace roof timbers, one sentence on how you deal with the old wood, linked to DPIRD's address check for the zones, shows you know the rules. The beetles emerge from September through to April.
Jarrah, and how we work. The Forest Products Commission says commercial logging in WA's native forests ended on 31 December 2023, and that timber is now taken only through ecological thinning to protect forest health and from approved mine site operations. When an owner asks for jarrah decking or posts, they'll want to know where yours comes from, whether reclaimed, recycled or bought from a merchant's stock, and a caption saying so on each job does more than a general line about quality. We're an Adelaide team on Hutt St, and Perth carpenters work with us by phone and email. Adelaide runs an hour and a half ahead of Perth, or two and a half during South Australian daylight saving. Our clients so far are in SA, NSW, VIC and QLD, and we haven't built for a carpenter or a WA business yet, so your site is built from the photos, job list and suburbs you send us.