SIX7 PLUMBING
SIX7 Plumbing Water Heater Installation Colombo
The pressure valve on a geyser isn't optional — it's the part that keeps a sealed hot tank from becoming a bomb. We fit isolators, valves and coordination to code, then test at full temperature.
The Sri Lankan market is LG and Singer, mostly instant units; solar heaters sit on older roofs, but recent installs have moved to internal instant heaters because they're cheaper to maintain and faster to service. Whichever type, the failure modes are the same two: undersized wiring and skipped safety valves — both invisible until the day they aren't.
New breaker work goes to a licensed partner and we coordinate it; we don't fake electrical scope. Your own heater is welcome at labor-only after we check its rating and valves. Supply-and-fit from 12,000 covers the standard instant unit and full code-compliant fitting; storage and solar-compatible setups are quoted from the same visit.
New geyser to install
We fit isolators, valves and coordination to code, then test at full temperature.
Replace an old heater
Whichever type, the failure modes are the same two: undersized wiring and skipped safety valves.
Instant heater upgrade
Supply-and-fit from 12,000 covers the standard instant unit and full code-compliant fitting.
Solar-compatible fitting
Storage and solar-compatible setups are quoted from the same visit.
Old Unit, New Unit
Out with the scale, in with the unit. Drag the slider to compare the old unit with our new installation.
How We Fit It
Our fitting process ensures your water heater is installed safe, efficient, and leak-free.
Bathroom Sizing
We check your bathroom layout, pressure and electrical to match the right unit.
Isolation & Electrical
Isolation valves fitted, MCB circuit confirmed, and wiring checked safe.
Pressure & Leak Test
Full flow and pressure test before we call it done. No drips, no guessing.
Neighbor Approved
"We check supply pressure before the unit goes on the wall — most heater failures we see were avoidable at install."
— SIX7 Plumbing, Mount Lavinia
"Every connection is pressure-tested and explained — you leave knowing how to shut it down and when to call."
— SIX7 Plumbing, Mount Lavinia
Fitted to Last
We use the right isolation valves, electrical fittings, and pressure-rated components.
Isolation Valves
Easy maintenance shut-off — no need to kill mains for future service.
MCB Protection
Circuit breaker sized to your heater — safety first, always.
Pressure Rating
We match your mains pressure to the unit — no premature failures.
The Nitty Gritty
Mismatched mounting and poor isolation make units unsafe and leaky. Here's what we do:
- Bathroom Sizing: We check layout, pressure and electrical before we select the unit.
- Isolation & MCB: Valves fitted and circuit protection confirmed.
- Pressure Test: Full flow and leak check before sign-off.
ALL INSTALLATIONS INCLUDE
6-Month Workmanship Warranty
"Any plumber can fit a geyser."
Mains pressure, scale build-up and old valves fail before the unit does. We check those first.
Expansion needs somewhere to go — without a working vessel, a closed-fed heater cycles its relief valve and shortens its own life.
If your unit's failing, check the isolation valve and MCB first. Those are usually the actual problem.
STARTING AT
LKR 12,000 + 3,500/hr
+ visit LKR 2,500 · Pay after approval
T&Cs apply — /pricing/ & /disclaimer/
*Unit by owner or at 20–30% markup from us.
Get a Quote
Fill out the form below and we'll get back to you within 24 hours with a detailed estimate.