On-site Calibration

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On-site Calibration

GNW has been providing exemplary on-site calibration services to industrial clients nationwide for more than 35 years. Our extensive experience, combined with the industry’s most talented and diligent technicians, ensures that every on-site calibration we perform is delivered to the highest standards. As an ISO 9001 accredited company, we pride ourselves on providing reliable, cost-effective, and fully traceable on-site calibration that you can depend on.  

Our fully mobile GNW technicians will carry out calibration of your instruments at a convenient time and date for you; minimising downtime and disruption. We can calibrate most pressure, temperature, electrical, weighing equipment (scales and load cells), and measuring equipment (such as verniers or micrometers) at your premises. Please contact us for a free, no-obligation quotation today, and to arrange an on-site calibration visit.

ISO 9001-2015 accredited

ISO 9001-2015 accredited

Audited annually by European Certification Group

Audited annually by European Certification Group





What Is On-site Calibration?

Most calibration procedures are performed in a certified laboratory. However, in certain circumstances, this type of in-house calibration simply isn’t feasible, appropriate or convenient. In such instances, on-site calibration provides the perfect solution, with a dedicated mobile technician visiting your premises to perform your calibration in situ. The advantage to your business is fast, accurate and reliable calibration testing to suit your schedule. 

Our on-site calibration services also deliver considerable savings on shipping, downtime, equipment hire, and potential damages that can occur in transit. Best of all, you’ll gain total peace of mind that your equipment is delivering accurate and valid results within the manufacturer’s specified tolerances. With same-day results and minimal disruption to your processes, our services are designed to save you time and money. We have gone into further detail here where you can read more, How To Prepare For On-Site Calibration

UKAS & ISO Accreditation and why is it Important for on-site calibration?

UKAS is the national accreditation body for the United Kingdom. It operates under a government mandate to assess and accredit organisations that provide testing, calibration, inspection, and certification services.

Accreditation by UKAS demonstrates that an organisation has been independently evaluated and found to be competent in its ability to provide reliable, accurate, and impartial services. This is important because it provides confidence and assurance to customers that the services provided by an accredited organisation are of high quality and meet internationally recognised standards.

ISO 9001 Certification is highly regarded and widely adopted by businesses as a means to demonstrate their commitment to quality management. The certification process involves several stages, including a thorough audit of the organization’s quality management system by an accredited certification body. The audit assesses the organisation’s ability to meet the requirements of ISO 9001 and effectively implement quality management practices.

Obtaining ISO 9001 Certification in the UK can provide numerous benefits to organisations, such as improved customer confidence, enhanced internal processes, increased operational efficiency, and access to new markets. It signals that an organisation has implemented robust quality management practices and is committed to continuous improvement. You can learn more about our certified and accredited expert service here, Accredited On-site Calibration

On-site Calibration vs In-house Calibration

A major consideration for manufacturers is weighing up whether to opt for on-site calibration or in-house calibration at a dedicated testing facility. Both have their merits, depending on your requirements. If your business has a large number of items, critical items that are essential to your operations or are too sensitive for transportation, and large-scale equipment that can’t be moved, on-site calibration offers the perfect solution. 

For less mission-critical equipment and instrumentation that is safe to transport and requires precise laboratory testing, but doesn’t necessarily need immediate attention, in-house calibration provides a viable alternative. You can still expect a quick, efficient and precise calibration service. Just in a matter of a few days, rather than the same day. Our GNW advisers are always on hand to discuss which service will be best suited to your needs. Read more on this topic in our detailed blog On-Site vs Off-Site Calibration – Which Is Better?

What on site calibration service do GNW offer

There are many types of services available, including:

This list is by no means exhaustive. GNW provides first-class on-site calibration for a vast range of electronic and mechanical instrumentation. Get in touch with our friendly and knowledgeable advisers to find out more.

What Sectors Do We Provide On-Site Calibration For?

We cater to a wide range of industries when providing our leading on-site calibration services. Below is a list of sectors we have a wealth of experience working in.

Calibration in Automotive & Aviation

Food Production

Heating & Ventilation

Calibration In Petrochemicals



Fire & Rescue


Medical Equipment

Aerospace and Defence



Why is Calibration So Important?

Regular calibration is essential for ensuring your instrumentation performs optimally at all times. Even the most fractional deviations can have a huge impact on the accuracy and validity of measurements, impacting safety and quality control. Purchasing, installing and running your own testing equipment can be prohibitively expensive for all but the largest manufacturers. This is where on-site calibration can give you the edge. To learn more about calibration, please visit our dedicated calibration page. 

On-site calibration offers numerous advantages, including:

  • Fast, accurate and reliable testing
  • Minimises equipment downtime
  • Increases operational efficiency
  • Scheduled to your requirements
  • Eliminates costly equipment hire
  • No risk of damage to items in transit
  • Cuts freight and shipping costs

The Process

Arranging for on-site calibration with GNW is quick and easy. The first step is to contact our helpful advisers to discuss your requirements in more detail. We will provide you with expert advice, as well as a free, no-obligation quote that is tailored to your specific circumstances. We can then arrange a convenient time and date for a GNW technician to visit your premises to carry out calibration with the least disruption to you.   

Our technicians will carry out all the necessary calibrations you need using the latest state-of-the-art testing equipment. Our fully equipped and self-contained mobile laboratory facilities enable us to deliver controlled and standardised on-site calibrations in situ to provide an extremely accurate, reliable and cost-effective solution. With no risk of downtime, you can continue your operations with total peace of mind.  

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Frequently asked questions

If you can’t find what you’re looking for simply get in touch with our friendly team who are here to answer any questions you might have.

Yes. Although our in-house calibration services are extremely quick and efficient, with servicing and calibrations turned around in a matter of days, an on-site calibration can be performed on the day and in situ. That means zero downtime, disruption or waiting. You can continue your operations without skipping a beat. 



Our Location

101a Sefton Street, Southport, PR8 5DD

Phone Number

+44 (01704) 536 010

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