The business
Donza Plumbing is a family-owned plumbing and gas company based at Mannering Park on the northern edge of the Central Coast, working the corridor up through Lake Macquarie and into Newcastle. The company, DONZA PLUMBING PTY LTD (ABN 51 697 209 153), grew out of a sole-trader business the same owner ran under the Donza Plumbing name from January 2025.
The work is broader than a general maintenance round. Bathroom renovations are the visible half, including in-wall cisterns, 1300mm baths and core-holing suspended slabs, but the licensed side is where the margin sits: gas fitting, backflow prevention, thermostatic mixing valves, commercial fitout and new construction rough-ins.
What they had before
No website. Not an old one, not a builder template, nothing. Two web searches on the business name and on the phone number returned no site, no directory listing and no Google Business Profile.
The entire public presence was one Instagram account, which in August 2026 carried 4,165 followers across 35 posts with an active weekly posting cadence. Every enquiry arrived as a DM, because the bio said so: “DM for a quote”. That is a real audience with nowhere to send anyone. A homeowner in Toronto or Belmont searching for a licensed gas fitter found competitors, and the follower count did nothing for them.
There is no Business Profile either, so there is no map listing, no reviews to inherit and no local entity for Google to attach a site to. The baseline is zero on every search axis, and the follower count does not change that.
What we built
A 139-page site at launch, structured around the two questions a plumbing buyer asks: do you do this job, and do you come to my suburb.
One hundred suburb pages at launch, 103 now, cover the service area properly rather than naming a region and hoping. They run from the Central Coast base at Mannering Park, Lake Munmorah and Summerland Point north through Lake Macquarie, Toronto, Belmont, Balcolyn, Awaba, Arcadia Vale and Bennetts Green, and on into the Newcastle suburbs. Each one carries its own location, address and opening-hours markup instead of a shared footer list of suburb names.
Thirteen service pages split the trade by job rather than by department. Bathroom renovations, hot water systems, blocked drains, gas fitting, backflow prevention, pumps and filtration, kitchen plumbing, tap and toilet repairs, emergency plumbing, new construction and commercial each answer a different buyer with a different urgency. Splitting by job is the core of how Kovus approaches plumbing websites. Eight project pages group real job classes, and seven guides answer the questions the search data shows, including hot water system replacement cost, heat pump hot water rebates, why hot water costs more, backflow testing, gas appliance changeover, a blocked drain that keeps coming back, and what to do with a burst pipe.
The credential layer matters more in this trade than in most, because gas and backflow work is licensed and a homeowner is entitled to check. The gas fitting, backflow prevention and thermostatic mixing valve accreditations are published in the site’s structured data with NSW Fair Trading named as the recognising body, alongside markup that describes the business as a plumber and carries its FAQs. The ABN and the mobile number sit on every page.
There is one interactive piece rather than a contact form as the only entry point. The hot water check asks how old the unit is, what type it is and what it is doing, then routes to the relevant service page. Hot water is the highest-intent plumbing search there is, and the tool gives that search somewhere to land.
Where it stands
The site is live on its own domain at donzaplumbing.com.au. The original build address still works and tells search engines the domain is the main copy, so there is one indexable version rather than two. Since launch it has grown from 139 to 150 pages, and from 100 to 103 suburb pages.
The business now has a verified Google Business Profile, set up as a service-area listing, so the map results are reachable at all. The suburb pages and the structured data give Google a consistent local business to attach that profile to. The ongoing layer, the profile, reviews and local content, is the work described on the SEO for plumbers page.
What’s included
A one-off build plus a month-to-month retainer covering Business Profile setup, reviews and content. The site, the suburb pages, the content and the domain belong to the business from day one. The client may cancel at any time, effective at the end of the current paid month, and everything stays with the business.