Mainline Plumbing Co. R ★★★★★
Rebecca T.
Charlestown · via Google
“Hot water died on a Sunday with three kids in the house. Mainline answered, gave me a 60-minute ETA, and had a new unit in by lunch. Knew the price before they started.”
Burst pipe, gas smell or no water? Call nowA real plumber answers, 60-minute metro ETA(02) 4900 000024/7
Newcastle & Lake Macquarie · 24/7
The plumber who quotes the job, not the hour.
Burst pipe, no hot water, blocked drain or a gas job done right.
RDP
★★★★★4.9 · 180+ reviewsLic. NSW Lic. 000000C · Public liability to $20M
24/7a real plumber answers
Licensed & gas-authorised
◆Answered 24/7
Real plumber, any hour
◆Licence
NSW 000000C
◆Call-out
$0 to come and look
◆Response
60-min metro ETA
◆Guarantee
Lifetime workmanship
Why homeowners pick us
Booked solid on proof, not promises.
0
Jobs reviewed
across the Hunter
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On the tools
local since 2009
0 ★
Average rating
on Google
0
Metro ETA
Newcastle & Lake Macquarie
Licensed plumber Gas authorised $20M insured 24/7 emergency Lifetime workmanship
What we do
One plumber for the whole house.
Emergencies, hot water, gas, drains and renovations. Licensed, gas-authorised, and quoted up front.
Hot Water Repair & Replacement
Same-day repair or replacement, gas, electric, heat-pump or solar. Continuous-flow and storage. Rheem, Rinnai and Dux.
Get a quote →
Licensed Gas Fitting
Appliance, cooktop and heater installs, gas leak detection, and the compliance certificate every legal gas job must produce.
Get a quote →
Blocked Drains
Snake first, camera if it returns, jet only when it earns it. Honest order, no upsell theatre.
Get a quote →Burst Pipes & Leaks
Burst mains, slab leaks, dripping fittings. We find it, stop it, and tell you the price before we cut.
Get a quote →Leak Detection
Acoustic and thermal detection to find a hidden leak without tearing the house apart. Fixed scope before we start.
Get a quote →Bathroom & Renovation Plumbing
Rough-in and fit-off for bathrooms, kitchens and laundries, waterproofing-ready, compliant, on schedule.
Get a quote →Commercial Plumbing
Scheduled maintenance, fit-outs and breakdowns for offices, retail, hospitality and strata, booked around your trading hours.
Get a quote →New Builds & Project Work
Full rough-in to fit-off for new homes, townhouses and major projects, priced by stage, partnered with your builder.
Get a quote →Backflow & Compliance
Backflow prevention, TMV testing and annual compliance certificates lodged with the water authority.
Get a quote → Proof, recent work
Real jobs across the Hunter.
Before
After
Before
After
Before
After
How it runs
What happens next, step by step.
1
Call
A real plumber answers, day or night, and tells you what to turn off while we are on the way.
2
60-minute ETA
An honest arrival time for the Newcastle and Lake Macquarie metro, not "sometime today".
3
Fixed quote on-site
We diagnose the real problem and quote it in writing before any work starts. $0 call-out.
4
Fixed-price fix
You approve the price, we do the work for that price, with a certificate where the job needs one.
Why Mainline
The quote is the price.
What goes in your written quote, and the cowboy tells we will never pull.
The 7-line quote
- 1 The diagnosis. What is actually wrong, found on-site, not guessed over the phone.
- 2 The fix, in full. Parts and labour for the whole job, itemised. No "from" pricing.
- 3 Compliance, where the law needs it. Gas or backflow work includes the certificate, lodged where required.
- 4 The guarantee. Lifetime workmanship in writing, plus your unit warranty registered.
If a quote doesn’t show these lines, you can’t compare it, and you don’t know what’s been cut.
What you get from us
- ✓A real plumber answers, day or night
- ✓Licence number on every quote
- ✓$0 call-out, fixed price before we start
- ✓Gas work finished with a compliance certificate
- ✓The quote is the price, it does not move
Cowboy tells
- ✕Call centre books you for next week
- ✕No licence number, or "trust me"
- ✕Call-out fee just to turn up
- ✕Gas job with no certificate (illegal)
- ✕Hourly rate that creeps while the meter runs
Honest scope
Repair, replace, or investigate first?
Option A
Repair it
Fix the fault with the unit or pipework you already have. The right call when the system is sound and the part is the problem.
Right when: A recent unit, a single leak, a clearable blockage.
Wrong when: The unit is old or the same fault keeps returning.
Wrong when: The unit is old or the same fault keeps returning.
$180 to $800
Most common
Replace the unit or section
Swap the failed hot water unit, tap or pipe run for a new one. Often the smarter spend once a system is past its life.
Right when: A unit past 10 years, a recurring fault, corroded pipework.
Wrong when: A near-new system with a one-off, cheaply fixable fault.
Wrong when: A near-new system with a one-off, cheaply fixable fault.
$1,200 to $3,500
Option C
Full re-do
Rough-in to fit-off for a bathroom, kitchen or whole-house re-pipe. The honest option when a renovation or old galvanised pipe forces it.
Right when: A renovation, a failing whole-of-house system.
Wrong when: A single fixture or isolated fault.
Wrong when: A single fixture or isolated fault.
$3,000 to $8,000+
Option D
Investigate first
Locate a hidden leak or camera a recurring blockage before committing to a repair, so the fix is targeted not exploratory.
Right when: A bill up with no puddle, a drain that keeps blocking.
Wrong when: The fault is already obvious and accessible.
Wrong when: The fault is already obvious and accessible.
Scoped first, then quoted
Before you call anyone
Work out the scope, then see the range.
Two free tools. One helps you decide whether to repair, replace or investigate; the other gives you an indicative range in under a minute. Both store nothing and end in a proper on-site walkthrough. Neither is a quote.
Guarantee in writing
Three layers, and what each one covers.
Layer 01
Lifetime workmanship
The labour and the install are guaranteed in writing, for life. If something we did fails, we come back and put it right.
Layer 02
Manufacturer warranty, registered
We register the warranty on your new unit or part at handover, so you are covered on both fronts without chasing paperwork.
Layer 03
Statutory (ACL)
Services rendered with due care and skill for a reasonable period under Australian Consumer Law. Always applies.
Reviews
What the Hunter says about us.
Wall of love
180+ jobs reviewed, 4.9 on Google.
★★★★★ 4.9 average 180+ Google reviews
D ★★★★★
Daniel M.
Merewether · via Google
“Burst pipe under the slab at 11pm. They talked me through the mains shut-off on the phone, turned up fast, and the quote was the quote, no surprises on the invoice.”
P ★★★★★
Priya S.
Warners Bay · via Google
“Booked them to install a gas cooktop. Proper licence, compliance certificate handed over on the day. The first plumber who actually explained what I was paying for.”
Where we work
Across Newcastle & Lake Macquarie.
No travel surcharge within 35km of Newcastle.
10 suburbs across the Newcastle & Lake Macquarie. No surcharge within 35km of Newcastle.
Larger map Watch this before you book
The questions every customer asks, answered once.
Licence, fixed pricing, gas certificates and the lifetime guarantee, explained straight.
Chapter 1 · FAQ Every question you would ask a plumber, answered straight
Filming soon · 8 to 12 min
Are you really available 24/7?
Yes. A real plumber answers the phone day or night, not a call centre that books you for next week. After-hours emergencies across the Newcastle and Lake Macquarie metro get a 60-minute ETA, and we tell you the after-hours rate before we leave the depot.
What does the call-out cost?
Nothing. We do not charge a fee just to come and look. You get a fixed-price quote on-site before any work starts, and you decide from there.
How do I know I am not being overcharged?
We diagnose on-site, quote the whole job in writing before we touch anything, and charge by the job, not by the hour. The quote is the price, it cannot creep up while a meter runs. You see it, you approve it, and only then do we start.
Is it a fixed price or charged by the hour?
Fixed price. We diagnose on-site, quote the whole job in writing, and that is the price. Any after-hours loading is disclosed before we start, never sprung on the invoice.
Are you licensed, and do you do gas work?
Yes to both. We hold a current NSW plumbing licence (000000C), and for gas work we hold a separate Gas Work Authorisation, because a plumbing licence alone does not cover gas. Every gas job finishes with a compliance certificate.
Do you service my suburb?
If you are anywhere across Newcastle and Lake Macquarie, almost certainly yes, that is our 60-minute response zone. We also cover the wider Hunter out to Maitland and Cessnock, with an honest arrival time for the outer areas.
Get started
Get a fixed-price quote before any work starts.
Tell us what is going on. A real plumber calls back fast with an honest plan, and a price that does not move once you approve it.
✓ Licensed plumber & drainer✓ Gas Work Authorisation✓ Licensed & insured✓ 180 five-star reviews✓ Lifetime workmanship guarantee