Certify your site is safe
CIRIA C681-compliant assessments for planning conditions, lender requirements, and contractor sign-off. Demonstrable ALARP.
24-hour Preliminary Risk Assessments
Don’t let UXO risk delay your project.
CIRIA C681-compliant UXO specialists covering risk assessments, surveys, clearance and on-site supervision. Senior engineer-led, delivered to your construction programme.
- 24-hour Preliminary UXO Risk Assessment from £90 + VAT
- 5-day Detailed Risk Assessment from £850 + VAT
- Fast mobilisation
Accredited
& compliant 
& compliant
Complete within 24 hours
Preliminary Risk Assessments delivered next-day, so planning timelines, lender deadlines, and project programmes don't slip.
Transparent pricing
From £90 + VAT. No surprise fees, no junior account handlers. You speak with the senior engineer running your project.
What we do
End-to-end UXO services across the CIRIA C681 framework.
Six core services covering every stage of UXO risk management, from initial desktop assessment through to on-site supervision and disposal. UK-wide, senior-engineer led.
Most Requested Explore Risk Assessments
Surveys
UXO Risk Assessments
CIRIA C681 Stage 1–2 desktop studies. Preliminary delivered in 24 hours from £90 + VAT. Detailed assessments for higher-risk or constrained sites.
Surveys
Non Intrusive Surveys
Magnetometry and geophysical survey with no ground disturbance. Ideal for open land, brownfield, and early-stage validation.
Surveys
Intrusive Survey (CPT)
Deep-depth verification using our in-house CPT rig. For piling, deep foundations, and urban constrained sites.
Response
Identification & Clearance
EOD response for live finds. 24/7 emergency callout, identification, safe excavation, and disposal.
Surveys
Borehole Clearance
UXO clearance within active or proposed boreholes. Magnetic screening and physical clearance prior to drilling or investigation works.
Supervision
Consultancy & On-site Supervision
Senior-engineer supervision for groundworks and construction. Watching briefs, method statement review, and contractor guidance.
How We Work
A pragmatic four-step process, designed for construction deadlines.
No bureaucracy, no junior handovers, no waiting for a project manager to call you back. Senior engineers from enquiry to delivery.
- 01
Enquiry
Tell us about your site. We confirm scope, price, and turnaround inside one working hour.
- 02
Research
Historic records review, bombing density analysis, and site-specific risk profiling.
- 03
Report
CIRIA C681-compliant report with clear risk rating, evidence, and recommended mitigations.
- 04
Delivery
Delivered within 24 hours. Senior engineer available for follow-up calls and clarifications.
Interactive tool
Is your site in a high-risk area?
Explore historic WWII bombing density and unexploded ordnance risk across the UK. Enter a location on our interactive map to see the data for your site.
Recent Projects
UXO work, on the ground.
A selection of recent S.I UXO projects across the UK. Each one delivered on time, with full CIRIA C681 compliance and direct engineer contact throughout.
Bath Street / Construction / Development
UXO Identification and Controlled Excavation — Bath Street
Full-cycle UXO management from desk study through CPT investigation to the confirmed identification and safe management of a WWII SC50 Luftwaffe aerial bomb, delivered entirely in-house.
Read case study
North West England / Mixed-use Redevelopment
Time-Critical Enabling Works
Rapid deployment of UXO supervision for enabling works under a compressed programme, with zero downtime and strong H&S outcomes despite short-notice appointment.
Read case study
Midlands / Commercial
Greenfield Development with Deep Foundations
CPT-based intrusive UXO detection integrated with a geotechnical investigation on a site where historical analysis revealed undocumented bombing risk in an apparently low-risk rural setting.
Read case study
S.I UXO has supported a range of our projects, including active and former MOD facilities. They deliver agreed scopes effectively and operate both professionally and with clear intent to minimise any disruption to ongoing works.
David Pethica /Director, Ground Condition Consultants Ltd
I've been impressed with S.I UXO's work attitude and quality. They have incredibly worked well with our site engineers and drillers, ensuring minimal disruption to our ground investigation works. I will certainly be using S.I UXO in the future.
Niall Kiernan /Project Manager, SOCOTEC UK Ltd
I've had the pleasure of working with S.I UXO over the past two years, I can confidently say that their performance has been nothing short of exemplary. I highly recommend S.I UXO for any UXO project that demands the utmost in reliability and professionalism.
Paul Standish /Associate Director, Terra Firma Group
On LinkedIn Active on every project.
Active on every project.
Every week.
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New
"Do we actually need a UXO survey?" Fair question, and the honest answer is: not always. But if your PRA or DRA flags elevated risk, you're planning intrusive GI, or…
Read on LinkedIn → -
Not our usual way of getting around site… but Michael Swain MBE seems to have adapted quickly. When in Rome…🏌️♂️
Read on LinkedIn → -
Double Trouble 🎯
Read on LinkedIn →
Ready to de-risk your site?
Whether you need a 24-hour Preliminary Risk Assessment, a full survey, or just advice on your site; start with a conversation.
- 24-hour Preliminary UXO Risk Assessment from £90 + VAT
- 5-day Detailed Risk Assessment from £850 + VAT
- Fast mobilisation