Construction Plumbing & Sanitary Contractors in Dubai & the UAE
Plumbing & sanitary contractors in Dubai & the UAE: water supply, drainage & sewerage, sanitary ware, booster pumps & water heaters – first & second fix, pressure-tested to Dubai Municipality.
Construction Plumbing & Sanitary Contracting
AlphaStone is a plumbing and sanitary contractor delivering the water and drainage works on construction projects across Dubai and the UAE. Our in-house teams install potable cold and hot water, soil, waste and rain-water drainage, booster pumps, tanks and sanitary ware — from first-fix pipe rough-in through to second-fix fit-off and pressure testing.
Everything is installed to Dubai Municipality and DEWA requirements with approved, pressure-tested materials, and coordinated for inspection so the installation matches the approved drawings before handover.
- Water supply & hot-water systems
- Soil, waste & rain-water drainage
- Sanitary ware & fixtures
- Pressure testing & DM inspection
Water supply & distribution
We install the incoming supply, risers and distribution for cold and hot water, with booster pumps and tanks sized to deliver correct, consistent pressure across the building.
- Cold & hot water supply & risers
- Booster pump sets
- GRP & storage water tanks
- Water heaters & calorifiers
- PPR, copper & PEX pipework
- Valves & pressure control
- Backflow prevention
- Insulation & lagging
Drainage, waste & sewerage
Drainage is set out to the correct falls at first fix, before slabs and ceilings close, and connected to the Dubai Municipality network with the required traps and interceptors.
- Soil, waste & vent stacks
- Rain-water & storm drainage
- Floor drains & gullies
- Grease traps & interceptors
- Correct drainage falls/gradients
- UPVC & HDPE pipework
- Manholes & connection to DM network
- Anti-siphon & venting
Sanitary ware, testing & inspection
Second-fix sanitary ware and fixtures are installed and connected, then the system is pressure-tested, flushed and disinfected, and presented for Dubai Municipality inspection.
- WCs, basins, mixers & fixtures
- Second-fix fit-off & connections
- Pressure & leak testing
- Flushing & chlorination/disinfection
- Drainage flow & fall checks
- Snagging & making good
- Dubai Municipality inspection
- As-builts & handover
Our plumbing construction process
Design & DM Submission
Water and drainage design prepared and submitted for Dubai Municipality approval.
First Fix (Rough-in)
Supply pipework and drainage set to the correct falls before slabs and ceilings close.
Risers, Pumps & Tanks
Booster sets, water tanks and risers installed and connected.
Second Fix
Sanitary ware, fixtures and fit-off completed.
Pressure Testing & Flushing
Pressure and leak tests, flushing and disinfection.
DM Inspection & Handover
Dubai Municipality inspection, as-builts and O&M.
Municipality-compliant & pressure-tested
- Dubai Municipality drainage & plumbing guidelines
- DEWA water-connection requirements
- Approved, pressure-tested materials
- ESMA-compliant fittings & sanitary ware
Industries & properties we serve
Key benefits
Reliable water pressure
Leak-free, pressure-tested
DM-compliant drainage
Correct drainage falls
Quality sanitary ware
On-programme handover
Frequently asked questions
What plumbing works do you carry out?
Complete cold and hot water supply, soil, waste and rain-water drainage, sanitary ware and fixtures, booster pumps, water tanks and water heaters – from first-fix rough-in to second-fix fit-off.
What is the difference between first fix and second fix plumbing?
First fix is the pipe rough-in – supply pipework and drainage set to the correct falls – installed before slabs, ceilings and partitions close. Second fix is installing and connecting the sanitary ware and fixtures after the finishes.
What pressure testing do you do?
Pipework is filled with water or air at a higher-than-normal pressure to expose even pinhole leaks, and drainage falls are verified. Tests are documented ahead of the Dubai Municipality inspection.
Are your plumbing installations Dubai Municipality-compliant?
Yes. We install to Dubai Municipality drainage and plumbing guidelines and DEWA water requirements using approved materials, and coordinate the inspection so the works match the approved drawings.
Do you install sanitary ware and water heaters?
Yes. We install WCs, basins, mixers and fixtures, plus electric, central and solar water-heating systems, sized to the property.
Do you install booster pumps for water pressure?
Yes. We size and install booster pump sets and tanks to deliver correct, consistent water pressure across the building.
Do you install grease traps and interceptors?
Yes. Where required (kitchens, F&B), we install grease traps and interceptors and connect them correctly to the Dubai Municipality drainage network.
Which projects and emirates do you cover?
Villas, apartments, offices, retail and industrial construction projects across Dubai, Abu Dhabi, Sharjah and the UAE.
Related MEP services
Serving all seven emirates
Start your project with AlphaStone
Free site survey and a no-obligation, fixed quote. Prefer to talk? Call or WhatsApp +971 56 409 7777.
- Free site survey & honest advice
- Transparent, fixed pricing
- Compliant (SIRA / ADMCC / BICSI) design
- One contractor for cabling, network & security