Site Engineering
Daily supervision, coordination of labour, plant and subcontractors, and delivery to approved drawings and specifications.
Site Engineering · Setting Out · Surveying
Precision engineering for London’s most demanding projects.
SAJ Engineering Ltd delivers site engineering, setting out and survey services across the UK — from landmark towers at Canary Wharf to critical water infrastructure for Thames Water.
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Years of Experience
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Projects Delivered
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Trusted Clients
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Safety Commitment
Thames Water◆
Canary Wharf◆
Crossrail◆
Network Rail◆
London Olympics 2012◆
Gatwick Airport◆
M25 J8–J11◆
A406◆
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Years Delivering
Excellence
Excellence
Who We Are
Engineering accuracy you can build on.
SAJ Engineering Ltd is a London-based civil engineering and surveying practice. We provide highly experienced site engineers, setting-out engineers and surveyors to main contractors and developers across the UK — supported by rigorous quality assurance and the latest instruments.
From steel-frame towers and heritage façade retentions to sewage treatment works and highways, our team ensures every element is built exactly where the drawings say it should be.
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Fully equipped teamsRobotic total stations, GPS & laser instruments — controlled and calibrated.
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Quality assured deliveryITPs, RFIs, as-built records and inspections managed digitally.
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Safety first, alwaysFull compliance with health & safety requirements on every site.
What We Do
Complete engineering & survey services.
A wide array of enterprise-level services and tools — delivered by engineers who understand programme pressure and build quality.
Setting Out & Surveying
Precise setting out of structures, gridlines, pipelines and reinforcement — verified dimensions, maintained accuracy throughout.
Topographic & GPS Surveys
Large and small-scale topographic surveys, GPS control networks and environmental & flood-risk survey data you can rely on.
AutoCAD & Drafting
CAD drafting and plotting, as-built drawings and measured building surveys — accurate records from site to submission.
Monitoring & Control
Structural monitoring surveys, control network verification, and instrument control & calibration for total confidence.
Volumetric & Earthworks
Volumetric analysis, earthworks design, quantity take-offs and material estimation for informed commercial decisions.
Quality Assurance
Inspection & Test Plans, RFIs, checklists and concrete quality control — slump and cube testing to client standards.
Geotechnical & Construction
Support for piling, temporary works, sheet piling and trench support — plus coordination of existing underground services.
Our Portfolio
Recent & ongoing projects.
We are proud to deliver — from complex city-centre redevelopments to live water treatment infrastructure.
Water Infrastructure · Featured
Hatfield Heath STW — Thames Water
Site engineering for the delivery of the Hatfield Heath Sewage Treatment Works upgrade: setting out of tanks, pump stations, manholes, roads and yard piping; ITPs, RFIs and as-built records managed through SharePoint, Viewpoint and Field View; concrete QC via slump and cube testing; and coordination of live underground services throughout.
- Setting out — tanks, pump stations, pipelines & reinforcement
- Temporary works: sheet piling & trench support
- Quantity take-offs & material estimation
Commercial Tower · Ongoing
North Quay Development, Canary Wharf
Engineering and setting-out support on one of London’s largest new development sites — high-rise construction in the heart of Docklands.
Renovation · Ongoing
1 Alfred Place (The Courtyard), London
Project & setting-out engineering for demolition and renovation works — coordinating labour, subcontractors and equipment to programme.
Redevelopment · Ongoing
96–100 Piccadilly, Mayfair
Project engineering on a prestigious Piccadilly redevelopment — surveying, setting out and daily coordination of site activities.
Steel Structure · Ongoing
Mercury House
Steel erection supervision, alignment and level checks, as-built drawings and full compliance with health & safety on structural steelworks.
Redevelopment · Completed
20 Giltspur Street, City of London
Setting out and surveying of structural and architectural elements, subcontractor coordination and QA through to successful delivery.
Your project could be next.
From landmark towers to critical infrastructure — tell us what you’re building and we’ll bring the precision.
Start Your ProjectWhere our experience was built
Two decades of delivery across the UK’s biggest rail, highways, aviation and utilities programmes.
Site Engineering
Crossrail & Network Rail
Major civil engineering setting out with GPS, EDM & CAD — coordinating staff, subcontractors and method statements across live rail environments.
Senior Site Engineer
London Olympic Project 2012
Utilities, geotechnical & site investigation, demolition, remediation and earthworks across the East London Olympic Park build.
Engineering Support
Gatwick Airport
Runway rehabilitation works — precision surveying and quality control in a live airfield environment.
Site Manager
M25 J8–J11
Supervised roads and pavement reconstruction, new structural layers and asphalt resurfacing on one of Europe’s busiest motorways.
Setting Out Engineer
Thames Water
Total station and GPS control establishment, detail surveying, setting out and coordinate checks across water infrastructure sites.
Quality Risk Auditor
A406, North & East London
Supervision of water mains laying and repairs — quality control of backfill compaction, asphalt layers and road surfacing.
Site Engineer
Commercial Warehouse Building
Setting out for groundworks, structural steel, reinforced concrete frames and external works — with as-built drawing production.
Site Engineer
Totteridge, London
Pile works and foundations for residential buildings — daily setting-out demarcations and constant alignment checks to plan.
We are proud to deliver.
Tell us about your project and we’ll respond within one working day.
Request a Free QuoteCareers at SAJ
Build your career with us.
We invest in career development and welcome applications from trainee, graduate and experienced engineers and surveyors. Join a team delivering some of the most exciting projects in London and beyond.
Training Academy · Since 2006
Become a Setting Out / Site Engineer.
Gaps in your CV, no work experience, or lacking confidence? Our career development programme fills the gaps — complete on-site training, real work experience and references to launch your engineering career.
- Hands-on site training with robotic total stations
- AutoCAD, Revit & industry-standard survey software
- Real project experience & verifiable references
- Interview preparation & access to hundreds of UK vacancies
Get In Touch
Let’s discuss your next project.
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Visit Us
Office 506, Jhumat House,
160 London Road, Barking,
London IG11 8BB -
Call Us
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Email Us