Built to perform,concept to completion.

Civil, MEP and ELV contractor in Saudi Arabia. Specialist in data centre infrastructure and outdoor cooling.

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The Hilton Garden Inn, Al Hofuf, rising on site at golden hour, the tower crane above it

Data centres · Outdoor cooling · Civil · MEP · ELVView projectsOur sites · Hilton Garden Inn, Al Hofuf

Trusted by the region's most demanding clients

Rooftop chiller plant and chilled-water headers

Specialist practice

Data centres

Power, cooling, fire protection and controls for data halls, from MV/LV distribution to the integrated systems test.

Tier III: concurrently maintainable
1 MW: reference design
50 °C: design ambient

Explore data centres

The all-day dining terrace at the Four Seasons, Doha, cooled from the floor

Specialist practice

Outdoor cooling

Outdoor air conditioning for terraces, courtyards and boulevards, designed in CFD and commissioned at seated height.

38 °C: design ambient
1.2 m: at seated height

Explore outdoor cooling

Who we are

Engineering-led, from structure to commissioning

Green Square is a civil, MEP and ELV contractor that engineers, installs, tests and commissions building services in-house, with specialist practices in data centre infrastructure and outdoor cooling. Most buildings fail in their systems, not their structure: a plant room that cannot hold a 50°C afternoon, a riser coordinated too late, a fire system never witnessed. We were built to close those gaps.

We engineer every system in-house: district cooling and HV power, NFPA fire protection, medical gas, ELV, and the concurrently maintainable power and cooling plant a data hall depends on. Each is modelled before the slab is poured and commissioned against the model, to the same standard in Qatar and Saudi Arabia.

Copper medical gas pipework above the hyperbaric chamber at Hamad Medical Corporation

Saudi Arabia · Qatar

Our commitments

Quality · Innovation · Sustainability · Lifecycle Performance

Civil Construction

Civil, structural, architectural, and infrastructure works, carried from the ground up by our own crews.

Advanced Building Services

MEP, fire protection, ELV, and data centre power and cooling plant, all engineered in-house.

Sustainability & Innovation

Energy-efficient buildings, digital engineering, and lower lifecycle carbon, specified at design stage.

Quality & Delivery Excellence

Safety, quality, and on-time delivery, run under ISO 9001, 14001 and 45001 certified systems on every site.

What we do

Civil, MEP, ELV, data centres and outdoor cooling

Integrated design, supply, installation, testing and commissioning across civil works, MEP, ELV, data centre infrastructure, outdoor cooling and interior fit-out, each run by our own engineers and coordinated in one model before the first slab is poured.

01 / Civil, structure and finishes

General Contracting

Civil, structural and architectural construction from enabling works to handover, built by crews on our own payroll, with project management, QA/QC and authority approvals.

Civil & Structural
Foundations to frame.
Architectural Finishes
Envelope, cladding, waterproofing.
External Works
Roads, utilities, landscape.
PM & EPC Integration
Procurement, QA/QC, approvals.

02 / Mechanical, electrical & plumbing

Specialized MEP Works

Design, supply, installation, testing and commissioning of HVAC, electrical, plumbing and fire protection systems, built for efficiency, code compliance and lifecycle performance. Most building defects start in the services, so we keep this work in-house.

HVAC & Cleanrooms
Cooling that holds at 50°C.
Ventilation & Smoke
Pressurization and smoke control.
District Cooling
ETS networks, built and run.
Electrical & Power
HV, MV and LV distribution.
Plumbing & Drainage
Water supply, drainage, treatment.
Fire Protection
NFPA throughout.
Fire Alarm
Detection tied into the BMS.
Medical Gas
Hospital-grade, certified.

03 / Controls, security and networks

ELV Systems

Extra-low-voltage systems, a licensed trade of its own: BMS, security and access control, structured cabling, audio-visual and lighting control, integrated onto one platform.

BMS & Automation
Plant control and energy metering.
Security & Access
Perimeter to door.
ICT & Cabling
Copper and fiber backbones.
Guest Rooms (GRMS)
GRMS integrated with PMS.
AV, IPTV & PA
Screens, signage, and PA.
Lighting Control
DALI-2 and KNX automation.
Master Clock
GPS-synchronized time.
Smart Building
BMS and security on one platform.

04 / Power, cooling, fire and controls

Data Centre Infrastructure

Data centre infrastructure below the server: MV/LV distribution, UPS and standby generation (N+1 / 2N), chilled-water and CRAH cooling rated for a 50°C ambient, clean-agent fire suppression, BMS/EPMS/DCIM integration, and an integrated systems test (IST) on load banks before handover. Designed for Tier III concurrent maintainability.

Critical Power
Two paths to every rack.
Precision Cooling
A megawatt, rejected at 50°C.
Data Hall Fit-Out
Racks, floor, and fibre.
Monitoring & IST
Tested at full load, then handed over.

05 / Outdoor air conditioning

Outdoor Cooling

Outdoor air conditioning for terraces, courtyards, boulevards and venues: CFD-modelled design, pre-insulated chilled-water piping, floor and column diffusers, high-pressure evaporative cooling and HVLS fans, commissioned against the model.

CFD Simulation
CFD design, proven on site.
Evaporative Cooling
High-pressure micro-misting.
Air Displacement
HVLS fans and jet diffusers.
Outdoor Venues
Terraces, plazas, and venues.

06 / Fit-out, joinery and FF&E

Interior & Fit-out Solutions

Interior fit-out and bespoke joinery, through to FF&E and OS&E procurement and installation, handed over to the operator's brand standard on the opening date.

Interior Fit-Out
Built to brand standard.
Bespoke Joinery
Shop-drawn, made, fitted.
FF&E & OS&E
Specified, sourced, installed.
Hospitality Interiors
Hotels, offices, retail.

Sectors

Built around your sector

A hotel, a hospital, and a cold store all fail in different ways. We learn what failure means in your building before we design against it.

Hospitality & Leisure

Hotels and resorts, where a bad night's sleep is an engineering fault.

Commercial

Grade A towers that survive an institutional tenant's checklist.

Residential

Towers, villas, and palaces engineered to disappear into daily life.

Corporate Real Estate

Headquarters and workplaces built to say something about their owner.

Healthcare

Hospitals where the building services carry clinical risk.

Pharmaceuticals & Life Science

Cleanrooms and controlled environments, engineered to classification.

Education

Campuses from early-age schools to universities.

Industrial

Factories and plants where downtime is the real cost.

Oil & Gas

From FEED to commissioning in an unforgiving industry.

Energy & Renewables

Power and renewables infrastructure, built to grid standards.

High-Tech

Data centres and facilities for technologies that cannot overheat.

Retail & Malls

Malls and stores that keep trading while we work around them.

Government & Public Sector

Public infrastructure delivered to public scrutiny.

Defense & Special Projects

Specialist facilities, delivered with discretion.

Airports & Aviation

Hub airports that never close while we work.

Transport & Infrastructure

Tunnels, roads, and ports, where ventilation is life safety.

Utilities & District Cooling

District cooling plants, ETS, and networks that serve whole districts.

Projects

Work that holds up under pressure

Eighty-plus deliveries across the Gulf, from World Cup infrastructure to five-star hotels. These are the flagships; the full record is in the gallery.

Hospitality & Leisure

Hilton Garden Inn, Al Hofuf

Al Hofuf, Saudi Arabia

Case study

Ongoing

Hospitality & Leisure

Hilton Garden Inn, Al Hofuf

Al Hofuf, Saudi Arabia

Read the case study

Healthcare

Hyperbaric Oxygen Therapy Suite, HMC

Doha, Qatar

Read the case study

Utilities & District Cooling

Musaimeer Pumping Station & Outfall

Doha, Qatar

Read the case study

Retail & Malls

Al Hazm Mall

Markhiya, Doha, Qatar

Read the case study

Retail & Malls

Lusail Commercial Boulevard

Lusail, Qatar

Read the case study

Government & Public Sector

Manateq Pumping Stations

Qatar, Qatar

Read the case study

All projects

The Hilton Garden Inn, Al Hofuf, on site at golden hour

Ongoing

On site now

Hilton Garden Inn, Al Hofuf

The clearest version of how we work: Green Square is carrying the structure and every system inside it, civil works and full MEP, from foundations to commissioning, with the services model frozen before the first slab was poured.

Civil WorksStructureFull MEP

Al Hofuf

Read the case study

25+

Years of Gulf experience

90+

Projects delivered

Sectors served

90%+

Handovers on time

The duct run across Musaimeer pumping station

Why Green Square

Why clients award us the complete package

Four reasons clients award us civil, MEP and ELV packages together.

Engineered in-house

Plant selection, BIM coordination and CFD are done by our engineers before the price is fixed.

MEP in-house

Our services trades are on our payroll. The engineers who price your systems commission them.

Certified safety system

Site safety managed under an ISO 45001 certified system on every project.

On-time handover

The programme is planned backwards from the handover date, and 90%+ of our handovers land on time.

Green Square crew on the stainless duct run at Musaimeer pumping station

Our crews, on our sites

Case studies

The hard problems we like to talk about

Not every job is straightforward. These are the ones that weren't, and how we solved them.

All case studies

World first

6 min read

Open-air air conditioning in Qatar

How we helped deliver comfortable outdoor spaces in 45°C summers, on one of the first open-air cooling projects of its kind in the world.

Read the story

Specialist build

5 min read

A hyperbaric oxygen therapy suite

Building an HBOT chamber inside a premium Doha hospital, where the room itself is a pressure vessel and every system has to respect 100% oxygen.

Read the story

4 min read

Connecting a mall to district cooling

Integrating 120,000 square metres of retail with a district cooling network without a single day of lost trading.

Read the story

5 min read

Critical power for healthcare

Designing electrical resilience for 8 operating theatres, where a millisecond of downtime is not an option.

Read the story

Insights

Notes from the plant room

What our engineers are learning on live sites, written for the people who own, design, and run buildings.

Visit the blog

District cooling is the Gulf's quietest climate win

Sustainability

21 July 20267 min read

District cooling is the Gulf's quietest climate win

Half the electricity in a Gulf building goes to cooling. Districts that share their chilled water are cutting that bill by a third, and freeing entire floors of plant space while they do it.

Yousef Al-Hariri · Head of MEP Engineering

Commissioning in August: why we test at 50°C on purpose

Site Stories

2 July 20266 min read

Commissioning in August: why we test at 50°C on purpose

Any cooling system works in January. We schedule the hard tests for the exact weeks the climate is trying to kill the design, because that's the performance the client actually bought.

Marwa El-Sayed · Commissioning Manager

The anatomy of a Grade A electrical room

Standards

11 June 20268 min read

The anatomy of a Grade A electrical room

Kahramaa's Grade A classification is the difference between wiring a building and being trusted with serious infrastructure. Here's what the inspectors are actually looking at.

Daniel Okafor · Electrical Engineering Lead

How a project runs

From tender to handover and maintenance

Four stages: estimate and programme, civil works, MEP installation, then testing, handover and O&M. The programme is planned backwards from your handover date.

Stage 01 / 04

Estimate & programme

Tender drawings in, priced proposal and programme out, planned backwards from your handover date.

Stage 02 / 04

Build the structure

Enabling works, substructure, frame, and envelope, delivered by crews we employ.

Stage 03 / 04

Install the systems

MEP installed by the same contractor as the civil works, through sleeves and openings cast into the slab.

Stage 04 / 04

Test, hand over, maintain

Testing and commissioning, O&M documentation, then maintenance by the team that built it.

Locations

Where we work

Head office in Al Khobar, delivery teams Kingdom-wide, and an office in Doha behind two decades of delivered work. The same engineers, procedures, and QA files wherever the site is.

Saudi Arabia

The head office sits in Al Khobar and the delivery teams travel, which is how the same crews end up on jobs across the Eastern Province and beyond. MOMAH and SCA classification and Nitaqat Platinum are held here, for public and private sector work alike.

Office 1304, 3rd Floor, Hail Centre King Fahad Road, Al Rakah Al Janubia Al Khobar

+966 13 855 5524

Delivered in Al Hofuf, Al Khobar.

See projects

Qatar

Engineering, estimation, and fabrication support sit in Doha, along with the Kahramaa Grade A licence and QCDD approvals, and much of the delivered track record, from World Cup infrastructure to district cooling plants.

Building 28, Al Rawabi Street, Zone 24, Street 840 Floor 2, Office 4, PO Box 55962 Doha

+974 4432 5550

Delivered in Doha, Lusail, Al Wakrah, Salwa.

See projects

Certified and approved

ISO 9001ISO 14001ISO 45001

MOMAH Classified

SCA Classified

Nitaqat Platinum

USGBC Member

We gave them the structure and the services on one contract. It is the last time we had to arbitrate between trades.
Development Director, Gulf hospitality group

Start a project

Have a building in the pipeline? Talk to us before your next tender.

The earlier we see a job, the more we can do with it. Send over whatever you have, early drawings are enough for us to start.

1We review your drawings and programme
2A senior engineer calls you within 2 working days
3You receive a priced, buildable proposal

+966 13 855 5524 info@greensquare.sa

Al Khobar, Saudi Arabia· Doha, Qatar