Quarterline Project & Engineering Consultancy
Your Partner in
Project Management & Engineering Consultancy
We accompany developers and project owners from study and planning through to handover, with precise engineering management and supervision that protects quality, cost and time.
Jeddah, Saudi Arabia
Engineering Consultancy
From concept to handover, under one engineering lead
We lead residential, commercial and mixed-use projects with engineering management, consultancy and supervision that protect quality, cost and time.
Project Management
Leading the project from concept to handover: phasing, coordinating every party and tracking progress with clear periodic reports to the owner.
Engineering Consultancy
Reviewing designs, drawings and specifications, and giving the technical advice that secures a sound, efficient engineering solution before execution.
Execution Supervision
On-site supervision verifying that works match drawings and specifications at every stage, with approval before the next stage begins.
Cost & Schedule Control
Preparing bills of quantities, budgets and programmes, and catching deviations early to protect both budget and deadline.
Feasibility & Planning
Studying the site, the project's needs and the alternatives, to build a sound investment and engineering decision before costs are committed.
Quality & Safety Assurance
Inspection and approval systems for materials and works, and site safety procedures that protect people and the project and secure lasting performance.
+12Years of experience
+240Projects delivered
+45Engineers and technicians
48hTo issue your quote
Delivery
Delivery services
After planning and consultancy, we deliver what we designed with one team — so you aren't changing parties every time the project moves to its next stage.
Integrated Engineering Consultancy
Providing innovative and well-studied engineering solutions, including design, auditing, urban planning, and quality control, to ensure project execution with the highest standards of efficiency and sustainability.
Details
General Contracting
Residential and commercial projects delivered end to end — from excavation to handover — under one engineering team and one clear schedule.
Details
Interior Finishing
Complete interior fit-out — gypsum, paint, flooring and lighting — executed to match the approved design.
Details
Maintenance & Renovation
Repair and routine maintenance for existing buildings — from cracks and leaks to full renovation.
DetailsOur Clients
Trusted by Leading Clients
Click any client logo to explore the project we delivered for them.
Why Quarterline?
We combine precise engineering management with dependable delivery, leading your project through one accountable party from start to handover.
One Contractor, Full Scope
From study and planning to handover, with no juggling between multiple parties.
Our Own Manufacturing Branch
Our wood factory and carpentry branch gives us full control over the quality and timing of wood finishes.
On-Time Delivery
A clear schedule from day one, with continuous follow-up until handover.
Quality Materials
Certified materials selected to suit the Saudi climate and built to last.
Specialized Engineering Team
Experienced engineers and technicians overseeing every stage of execution.
Transparent Pricing
Detailed, clear quotations with no hidden costs.
How we work
Four steps from the first call to handing over the keys.
- 01
Talk and scope
We listen to the project and work out what it actually needs before discussing numbers.
- 02
Survey and quote
A site visit and measurements, then an itemised quote within 48 hours.
- 03
Management and supervision
A resident team on site, with weekly reports on progress.
- 04
Handover and warranty
A clean handover after your inspection, and a one-year warranty on structural works.
Contact
Ready when you are
Send us the details and our team will come back within 48 hours with an initial quote — no obligation.
- Transparent Pricing
- One Contractor, Full Scope
- Specialized Engineering Team