Hot Water System Quote Calculator the lead capture tool built for Australian plumbers
Give homeowners an instant hot water replacement estimate — electric, gas, heat pump or solar. Capture every emergency lead before they call someone else.
This is a price indication only. Our team will be in touch to confirm the final price after assessing the job.
*This is a price indication only. Your tradie will confirm the final price after assessing the job.
Step 1 of 5 — New System
1New System
2Household
3Installation
4Access
5Your Details
New System
Hot Water System Cost Calculator · powered by LeadkitPowered by Leadkit
Live calculator preview — try it now
Instant Notifications
Know the Moment a Lead Arrives
The second someone completes your calculator, you get a celebration notification with their full details — name, contact, project info, and estimated value.
Real-time alerts — no refreshing needed
Full customer details at a glance
One click to view the complete lead
Score and value calculated automatically
🎉
Your first lead just arrived!
Someone just requested an estimate on your website — their details have been captured and a new lead is ready in your dashboard.
Sarah Mitchell
Just now
Hot
Email sarah@example.com
Calculator Hot Water System Cost Calculator
Status New
Est. value $4,200
View Lead Details
I'll check it later
Automated Emails
Professional Emails Sent Automatically
Every calculator submission triggers branded emails — an instant estimate for your customer and a detailed lead notification for you.
Customer Estimate — Instant branded estimate sent to your customer
Lead Alert — New lead notification sent to your inbox
Updated Estimate — Revised estimate sent when you update pricing
Expiry Notice — Reminder sent when an estimate is about to expire
All prices in AUD · GST inclusive · Cancel any time, no calls or forms
Common questions
What others asks before signing up?
How much does it cost to replace a hot water system in Australia?
A full replacement including supply and installation typically ranges from $1,200 for a basic electric storage unit to $6,000 or more for a solar hot water system. The estimate depends on system type, capacity, access and whether the old unit needs removing. Use the calculator above for a tailored estimate.
Which hot water system is cheapest to run?
Heat pumps are the most energy-efficient option for most Australian households, using around 70% less electricity than a traditional electric storage unit. Solar hot water has the lowest ongoing cost but higher upfront investment. Gas continuous flow sits in the middle. Your plumber can advise on the best fit for your home.
Are heat pump hot water rebates worth it?
Yes — Australian homeowners can claim Small-scale Technology Certificates (STCs) worth $500–$1,000+ when installing a heat pump. Some states offer additional rebates on top. The calculator factors in the upfront cost; your plumber can confirm current rebate amounts for your postcode.
How accurate is this calculator?
The calculator uses real Australian supply and installation rates to produce an estimate within about 15% of the final price. Every job is different — your plumber will confirm the exact cost after inspecting the site, existing pipework and access.
Can I add this calculator to my WordPress or Webflow site?
Yes. Copy the embed code from your Leadkit dashboard and paste it into any page on WordPress, Webflow, Squarespace, Wix or Shopify. The calculator inherits your branding and sends leads straight to your inbox.
What do I get when a homeowner fills out the calculator?
You receive an instant email and dashboard notification with the homeowner's name, phone, email, suburb and full job details — system type, capacity, access and any extras. A branded PDF estimate is attached so you can follow up immediately.
I don't have a website — can I still use it?
Absolutely. Leadkit generates a hosted quote page at your own branded URL. Share the link on Facebook, Google Business, in texts or on job cards — no website needed.
Is Leadkit really free?
Yes. Free lets you add up to 3 calculators to your website and receive 10 leads per month — no credit card. Every lead beyond the cap is still captured and held for you; upgrading to Pro ($29/mo) opens them all retroactively and removes the cap.
Do I need to know how to code?
No. You get an embed code (one line of HTML). Paste it into your website builder — Wix, Squarespace, WordPress, or any custom site. That's it.
How accurate are the price estimates?
You configure the calculator formulas to match your actual pricing. Leadkit provides the framework; you set the numbers. Estimates can be as detailed or as rough as you like.
What happens with lead data?
All lead data is stored securely in your workspace. You own it. We never sell or share your leads with anyone.
Can I use Leadkit as an agency for multiple clients?
Yes — our Agency plan lets you create and manage separate workspaces for each of your clients, all from one dashboard.
What's the difference between the plans?
Free: up to 3 calculators, 10 leads/month (over-cap leads held + locked until upgrade). Pro: unlimited leads, unlimited calculators, white-label, branded email sending, analytics, email templates. Agency: everything in Pro plus multi-workspace management.
Get Started Free
Start capturing hot waterreplacement leads today
Set up your branded hot water system calculator in under 60 seconds. No credit card, no lock-in.
The section below is for homeowners researching hot water system costs. We break down how prices are calculated, show current Australian averages, and answer the questions we hear most. Every number reflects real 2026 rates from Australian tradies — not marketing fluff.
Based on AU market ratesGST includedUpdated for 2026
For homeowners
Find out what a new hot water system will cost you
Get a free estimate for replacing your hot water system — electric, gas, heat pump or solar. No sign-up, no obligation.
Compare electric, gas, heat pump and solar options side by side
See a full cost breakdown including GST and removal
Receive a professional PDF estimate by email in seconds
Connect with a local plumber who can confirm the price
For plumbers
Stop losing emergency hot water leads to your competitors
Homeowners search for hot water replacement costs at 10 pm when the system dies. Capture those leads automatically with a branded calculator on your site — or ours.
Your rates, your branding, your ABN on every PDF
Lead score helps prioritise callbacks
Free for up to 5 calculators — upgrade for unlimited
Works on WordPress, Webflow, Squarespace, Wix and Shopify
How it works
How this hot water system cost estimate is calculated
This calculator produces an estimate based on current Australian supply and installation rates. It is not a binding quote — your plumber will confirm the final price after a site inspection.
GST handling: All estimates include GST at 10% as required by the Australian Tax Office for registered businesses.
1
Unit cost lookup
The calculator matches the selected system type (electric, gas, heat pump, solar) to current wholesale unit costs, then adjusts for the chosen capacity.
sized_unit_cost = unit_cost × capacity_factor
2
Installation labour
A base installation labour cost covers standard plumbing connection, testing and commissioning. If the system is being relocated, a surcharge covers additional pipework and mounting.
3
Fuel-specific works
Gas systems include a gas line connection allowance. Electric and heat pump systems include an electrical circuit allowance. These cover the licensed sub-trade work required.
4
Access and removal
An access multiplier adjusts the total for difficult site conditions (tight spaces, roof cavities, upstairs). Old system removal and disposal is added if selected.
5
GST and range
GST at 10% is added to the subtotal. A ±15% range is shown to reflect real-world variance in site conditions, brands and regional pricing.
