Norwich construction industry experts in CBR testing, plate bearing, geotechnical, and site investigation. Get reliable data, fast, from a trusted local team.
Geotechnical & Site Investigation in Norwich by Site Testing Services (National) LTD
Successful ground investigation in Norfolk depends on accuracy and experience. You can’t afford to skimp on the soil assessment, whether you’re in a brownfield city centre site, a rural greenfield plot, or anything in between. Whether you need detailed CBR testing, plate load bearing investigations, or a comprehensive geotechnical survey, Site Testing Services (National) Ltd has the complete range of site testing services for new builds, extensions, roads, car parks, SuDs, or foundation design in Norwich.
We know just how important thorough site investigation and ground investigation are, not just for project specifications but also for ensuring long-term durability. That’s where our CBR, plate bearing & geotechnical testing services, which give a detailed picture of soil quality, really come into play.
What is CBR testing? Why Is It Vital?
CBR testing (California Bearing Ratio test) is a vital aspect of geotechnical and construction materials testing. It determines the strength and load-bearing capacity of soil (subgrade) and sub-base layers, making it a crucial process for pavement design, road construction, soakaway testing, and accurate foundation design. We assess how a standard plunger penetrates the sample soil compared to high-quality crushed rock, providing CBR values that inform compliant and cost-effective engineering solutions for all types of site conditions.
- High CBR values = strong ground (less imported material required).
- Low CBR values = weak ground (thicker capping required or specialist advice).
We carry out both in-situ CBR tests and lab CBR tests, always working to British Standards like BS 1377 and other relevant standards. Need plate load or plate bearing tests for crane pads or piling mats? We deliver comprehensive geotechnical investigation services using DCP, trial pitting, windowless sampling, and soakaway infiltration testing (BRE365).
Why Choose Us for CBR Testing in Norwich & Norfolk?
- Fast, Flexible Testing Services:
We visit sites in Norwich, Norfolk, and around the area quickly & efficiently. We know the local ground conditions and what builders, developers & contractors really need from their ground investigation.
- Compliant Reporting:
Our geotechnical information & CBR test results are given in a format that’s ready for risk assessments, desk studies & design work.
- Trusted by Contractors:
We’ve got many clients, from big infrastructure projects to home extensions, who rely on our investigation services & come back to us time & time again for our reliable results.
- Expert Engineers:
Our site personnel have been working on active construction sites for years and can advise on the best investigation process for any given job, including difficult access or brownfield locations.
Our Comprehensive Range of Testing & Investigation Services
In-Situ CBR Testing & Plate Bearing
Our in-situ services, using CBR plunger, plate bearing & penetration tests, give a quick & accurate picture of the actual ground conditions on your site, just what you need for real-world soil behaviour & compaction testing. For infrastructure projects, we bring our own 4×4 or use your excavator as a reaction weight, doing load increments & measuring settlement to assess soil strength, compaction, & suitability for your pavement or foundation.
Laboratory CBR Testing & Geotechnical Analysis
Where required, we collect bulk soil samples for laboratory testing: CBR, soakaway testing, moisture content, particle size, and more. Our Norwich lab provides a controlled environment for precise results, crucial for final design and highway or environmental site compliance.
Plate Bearing & Plate Load Testing
We also carry out plate load (plate bearing) tests to determine the modulus of subgrade reaction, assess the bearing capacity and settlement, and provide the data engineers need for piling mats, access routes, crane positions, and more. Our investigation services cover both granular and cohesive soils; if required, our team integrates DCP and LWD (lightweight deflectometer) testing to provide an extensive range of supporting data.
Additional Services
We offer trial pitting, borehole investigations, desk studies, dynamic cone penetrometer (DCP) testing, windowless sampling, soakaway infiltration testing (BRE365), and bespoke geotechnical reporting to satisfy local authorities, highways consultants, and civil contractors in Norwich and across Norfolk.
Frequently Asked Questions
Can you carry out CBR tests on chalk or difficult ground?
Of course! We do standard and specialist CBR testing for chalk, clay, sand, and all typical Norfolk soils. Sometimes, when a plunger isn’t an option (e.g., chalk shattering or heavily compacted sub-bases), our plate bearing tests or DCP tests give the reliable results you need
How quickly can I get my investigation results?
For our in-situ CBR tests and plate loads, we usually have a result that you can get on the phone with us the same day, and a fully typed, BS 1377-compliant report will be yours within 24 hours. When it comes to lab tests and specialist work, this can take 3 to 5 days, depending on how long it takes to get the samples, let them set, and get them through our testing schedule.
Is this required for car parks and pavement design?
Pretty much all the time, local councils and highway engineers need to see those CBR test results and ground investigation data before they will approve things like pavement depth, sub-bases, or foundation levels.
Do you perform soakaway testing?
Yes, we do. We can do soakaway infiltration rate testing; we follow the BRE365 and SUDS standards as part of our geotechnical investigation work.
Can I get trial pitting, compaction quality, or risk assessments on the same visit?
Absolutely, our services are designed to be really flexible, so our engineers can do a full investigation, take some samples, do a risk assessment, and even do some trial pitting all in one go.
How much does CBR or plate bearing testing cost?
Contact us for a competitive quote on investigation services in Norwich and Norfolk. Our rates are transparent, and our advice is always tailored to your geotechnical needs and site access constraints.
Get Your Norwich Investigation Booked Today
Don’t risk your project on guesswork. Work with us on geotechnical testing and site investigation; we are trusted by all the local contractors and design engineers.
Contact us for expert, cost-effective CBR testing, plate bearing, and complete geotechnical investigation in Norwich and across Norfolk.
[Request a Quote for CBR Testing & Site Investigation]
