Water Heater Services
Hot Water That Works Every Single Morning.
Installation, servicing and repair for tanks, combis and unvented cylinders — sized correctly, fitted safely and serviced on schedule.
Satisfaction Guaranteed
Installations backed by a twelve-month guarantee
Every heater we fit is commissioned, documented and covered by a twelve-month guarantee on parts and labour, on top of the manufacturer’s own warranty.
Repair or Replace Options
All Major Brands Serviced
Twelve-Month Parts Warranty
Why Choose Gullwick
Reliable Hot Water, Properly Installed.
A water heater rarely fails without warning. Longer waits, uneven temperature and a new rumble in the tank are all early signs. We service what can be saved and replace what cannot, sized to the way your household actually uses hot water.
What’s included
- Correct sizing for your household’s real demand
- Safe removal and disposal of the old unit
- Full commissioning and pressure testing
- Annual servicing that protects your warranty
- Repairs on tanks, combis and unvented cylinders
- Clear quotes with no hidden call-out fees
A heater that is sized right and serviced yearly will outlive one that was simply the cheapest to fit.
What We Cover
Every hot water problem, handled.
No Hot Water
Diagnose ignition, thermostat and supply faults in one visit.
Lukewarm Output
Restore full temperature where elements or sensors have failed.
Noisy Tanks
Flush the sediment build-up that causes rumbling and knocking.
Leaking Cylinders
Repair or replace failing tanks before they damage the room.
Pilot Light Faults
Fix thermocouples and gas valves on older gas heaters.
Pressure Loss
Recharge expansion vessels and correct unvented system pressure.
New Installations
Supply and fit tanks, combis and unvented cylinders.
Annual Servicing
Scheduled checks that keep warranties and efficiency intact.
Customer Reviews
Loved by homeowners and businesses alike!
“Super chill and helpful! The technician quickly resolved my issue with an excellent solution that worked perfectly for my needs.”
Daniel Mercer
Homeowner
“Turned up when they said, found the fault in ten minutes and charged exactly what was quoted. No drama and no upselling.”
Aaron Whitlock
Landlord
“I have used them three times now and every engineer has been the same: polite, tidy and straight with me about the cost.”
Victor Hale
Café Owner
“Called at eight on a Sunday expecting voicemail. Someone picked up, and an engineer was at the door before lunchtime.”
Noah Brennan
Homeowner
“We hand them eleven buildings and never chase. One invoice, one contact, and tenants who stopped calling us at night.”
Henry Takeda
Property Manager
“They did the washroom refit over a weekend so we lost no trading hours. Monday morning you could not tell it had happened.”
Elliot Shaw
Office Manager
Related services
Commercial Plumbing
Contracts, compliance and priority call-outs for businesses that cannot afford to close their doors.
Kitchen Plumbing
Fit-outs, appliance hook-ups and waste runs, every tested under load before we leave.
Pipe Repair & Replacement
From small joint fixes to full re-pipes, we restore water flow and pressure throughout your property.
FAQ
Questions, answered
Everything you need to know before booking your plumbing service.