Electrical & HVAC Estimator & Billing Officer

Are you detail-obsessed when it comes to estimating and invoicing, someone who has a deep understanding of Electrical & HVAC, and looking to make an impact in an operational role?

Come and join our young, energetic crew and take the reins as our lead Estimator and Billing Officer!

We’re not your average electrical or HVAC company. We’re modern tradies that are professional, proud of our workmanship, and focused on wellbeing. Our team brings together insights from a range of industries, picking the best ideas and leaving the rest behind. We move fast, set goals, and do what works – even if it’s not the norm. We’re agile, driven, and laser-focused on delivering the best customer experience in electrical and HVAC – backed by the best systems and great people.

Why Join Protex Electrical Group?

Competitive salary between $90,000 – $110,000 + superannuation based on skills and experience.

Hybrid working flexibility – choose to work from the comfort of your own home 1–2 days per week once onboarding is complete and you’re established in the role.

All the office tech and gear you need to win (sit stand desk, new laptop, monitors etc.).

Get paid to upskill with additional training i.e. estimating, email management etc.

Professional branded uniform provided including puffer vests, hats, rain jackets, and more (look good, feel good!).

Modern office/warehouse with ample free onsite parking in a breathtaking location in Oxford Falls. We have a fully equipped kitchen (barista coffee machine included) + a resident Jack Russell ‘Toast’.

Our office is only a short drive to French's Forest and Narrabeen shopping hubs so when you need some fresh air, we’re surrounded by beautiful bush and lagoon walks.

Be part of a young, high-energy, supportive team with a great team culture that has your back. No bureaucratic layered management. We’re a tight knit crew that values teamwork, high quality work, growth, and wellbeing – if that resonates you’ll fit right in!

No micromanagement – We hire talented people, support them, and get out of their way.

Walk into a systemised role where you can thrive (but still add your input!).

Your hard work will NEVER go unnoticed – we treat our staff like a volunteer workforce – no one is forcing you to be here, so we’ll never take you for granted!

Career progression in a growing company. We are a small business that is growing fast, which means more opportunities in a variety of roles (and we reward hard work).

Annual career mapping session. In combination with performance reviews, we discuss your career aspirations and how they align with the business. This helps to get a clear picture of where you are and where you are going.

Work hard, have fun – Monthly team catch ups where we grab breakfast, catch up and review the month that has been. Quarterly team events like rock climbing, team workouts, sports events, & dinners! We get everyone’s input to make sure we all have a blast.

About the Role

We’re looking for a full-time Electrical & HVAC Estimator & Billing Officer to join our growing team. This role is perfect for a detail-oriented person who thrives on supporting the team from the first estimate to final invoice – all while working with a great bunch of people.

This role is designed for an experienced ex-sparky (or someone with a strong background in the electrical/HVAC industry) who has experience in estimating and invoicing and is now ready to transition full-time into an operations role.

Your core responsibilities will include:

Preparing and issuing accurate invoices for everything from small service jobs to larger project works.

Creating, pricing, and submitting estimates for everything from small service jobs to project works including conducting site inspections and liaising with suppliers to obtain pricing for materials and equipment.

Using and creating pre-built pricing templates and scripts to streamline quotes and invoices, while confidently handling custom project estimates.

Following up on outstanding quotes and communicating with clients where needed (supported by our scripts and processes).

Coordinating with the delivery team once quotes have been accepted to ensure accurate delivery.

A Day in the Life

Start your day in our Oxford Falls office, grabbing a coffee and checking in with the team. You’ll kick things off by finalising invoices from the previous day’s service jobs and projects, making sure everything is accurate and sent out promptly.

Mid-morning, you’ll review new quote requests – preparing quotes for small service works using our pre-built pricing templates and scripts, while also mapping out larger job estimates. You’ll often collaborate with our electricians and team to confirm scope and pricing before sending quotes to clients.

After lunch, you might head out to a site inspection – scoping a tricky maintenance job, an A/C installation, shop fitout, or EV charging infrastructure project. You’ll gather the details you need to price the job properly, often liaising with suppliers to confirm material costs.

Back in the office (or working from home on some days), you’ll spend the afternoon building estimates, following up on outstanding quotes, and coordinating with the delivery team on jobs that have been approved. Before wrapping up, you’ll check in with the field crew, making sure projects are on track and that your estimates and billing align with the work being delivered.

No two days are the same – one day might be office-heavy with billing and estimating, the next might see you out on multiple sites around Sydney. It’s a dynamic mix of technical know-how, commercial focus, and teamwork.

What We're Looking For

Minimum 5 years’ experience in the electrical/HVAC industry.

Previous experience in estimating and invoicing (ideally in trade services, construction, or contracting).

Strong numerical and commercial awareness when preparing estimates.

High attention to detail – please include ‘HATD’ at the bottom of your cover letter to show you’ve read this ad carefully.

Familiarity with job management software like simPRO (bonus points if you’ve used it before).

Great time management and ability to prioritise tasks.

Clear, friendly, confident, and calm – on the phone, over email, and under pressure.

A proactive, can-do attitude – think ‘glass half full’.

A self-starter who takes ownership and pride in their work.

Great communicator (written and verbal) with clients, tradies, and suppliers.

Tech savvy and can pick up systems fast (we use SimPro, Xero, Google Workspace to name a few!). We’re big on new technology to improve how we work!

And most importantly aligns with our shared values of excellence, growth, positivity, and wellbeing.

Ready to Join the Team?

If you’re ready to join a high-performing operations team where your work matters, apply now with your CV and a short cover letter telling us why you’re the perfect fit.

If you’re reading this ad, chances are you’re not 100% happy in your current role. Remember that life is short. So if you’re not happy where you are and you are wanting more – make a change!

Take the leap and unlock your full potential with Protex Electrical Group!