Fast. Precise. Certified.
Servicing & Calibration
Trusted Specialists in Calibration and Compliance
As an approved Service Centre for Honeywell, Crowcon, Riken Keiki, MSA, Trolex, Dräger, and GMI, Ribble Enviro delivers fast, professional gas detection servicing and calibration so your safety equipment remains accurate, compliant, and ready to protect.
Our custom-built service workshop is run by a technical team with 30+ years’ hands-on experience across portable and fixed gas detection. Every instrument is calibrated using certified, traceable test gases and supplied with a calibration certificate for your records and audits.
Most manufacturers recommend regular calibration (typically every 6 months) to maintain accuracy and compliance. We make it straightforward — from simple send-in calibration to UK-wide on-site visits for fleets and fixed systems.
SafeContractor Approved
ISO 9001 Certified Processes
Servicing & Calibration Options
Calibration & Certification
Our approved service centre provides fast, reliable calibration using certified, traceable test gases. Each instrument undergoes a full inspection, adjustment, and verification in line with manufacturer procedures, and is returned with a calibration certificate for your records.
Maintenance & Repair
We diagnose and repair faults to restore your gas detectors to full working order. From sensor and filter replacements to full post-repair calibration, every instrument is handled by qualified engineers using genuine parts where available, ensuring accuracy and compliance.
On-site Calibration (Nationwide)
Our mobile engineers deliver on-site calibration across the UK for both portable fleets and fixed systems. We plan each visit carefully to minimise downtime, perform traceable calibrations to manufacturer standards, and issue certificates immediately upon completion.
TRANSPARENT PRICING
We offer clear, competitive pricing for our most commonly serviced portable gas detectors.
If your instrument isn’t listed, or for fixed system installation, commissioning, and servicing, please contact our team will be happy to provide pricing directly.
| Monitor | Price (Ex. VAT) |
|---|---|
| Single gas O2 / CO / H2S / LEL / CO2 / H2 | £45.00 |
| Single gas Toxic (any gas not listed above) | £70.00 |
| 4-gas confined space personal monitors (e.g. BW MicroClip / Max XT II, Crowcon T3 / T4, GMI PS200, Dräger X-am 2500, Riken Keiki GX-3R) | £50.00 |
| Crowcon Triple Plus | £85.00 |
| ToxiRAE Pro PID | £85.00 |
| Riken 4-gas + CO2 | £85.00 |
| Multi-gas (e.g. MultiRAE, Crowcon Gas-Pro, GMI PS500, BW Micro5, X-am 5000/7000, BW Ultra) | £100.00 |
| Gascoseeker, Shipsurveyor, Gasurveyor, Sensit Gold, GMI GT, GS700 | £110.00 |
| Gascoseeker Mk 1 | £150.00 |
| MiniRAE Lite / 2000 / 3000; Phocheck Tiger | £125.00 |
| ppbRAE / UltraRAE | £180.00 |
| Trolex XD one / one plus | £30.00 |
| Trolex Air XS Silica | £100.00 |
| Gas Clam | £300.00 |
| GFM4xx | £935.00 (to be revised Jan 1st 2026) |
| YSI | £255.00 |
| Area monitors: e.g. Crowcon Detective, BM25, Rig Rat | £100.00 |
| Carriage | Price |
|---|---|
| Mainland UK | £20.00 |
| Northern Ireland (any BT postcode), Isle of Man, Orkney Islands, Shetland Islands, Isle of Skye, Channel Islands (Jersey, Guernsey) | £30.00 |
| Republic of Ireland | £40.00 |
| Europe | £50.00 |
| Rest of the World | £100.00 |
PLEASE NOTE: Carriage charge for Detectives, Gas Clams and other bulky/heavy units is per monitor, NOT per shipment.
FREQUENTLY ASKED QUESTIONS
Below are some of the most common questions we receive about our servicing and calibration support. Whether you need routine calibration, maintenance, or on-site servicing for your gas detection equipment, these answers outline how Ribble Enviro ensures accuracy, compliance, and reliable performance across every system.
If your question isn’t covered below, please contact our servicing team, who will be happy to help.
What is the difference between calibration and bump testing?
A bump test is a quick functional check to confirm that a gas detector’s sensors and alarms respond to target gases. Calibration is a precise adjustment using certified, traceable test gases to ensure the readings are accurate. Both are essential—bump tests verify operation, calibration verifies accuracy.
Do you provide on-site calibration, or do detectors need to be sent in?
We offer both options. Our mobile service engineers can calibrate and maintain equipment on-site anywhere in the UK, minimising downtime. Alternatively, you can send detectors to our fully equipped service centre, where we typically provide a 3-working-day turnaround.
Will I receive calibration certificates for my equipment?
Yes. Every calibration includes a certificate traceable to national standards, detailing the gases used, test results, and service date. Certificates are issued electronically for easy storage and compliance audits.
What happens if my gas detector fails calibration?
If a sensor or component fails, our engineers will identify the cause and provide repair or replacement options using genuine parts. We’ll always obtain your approval before carrying out any additional work, ensuring transparency and cost control.
Do you offer ongoing service contracts or reminder systems?
No. We currently provide servicing and calibration on a one-off or as-needed basis. However, we maintain detailed service records and calibration certificates for all completed work, making it simple for you to track service intervals internally.
What should I do before sending my gas detectors for calibration?
Before sending equipment, ensure each detector is clean, clearly labelled, and free from damage or contamination. Remove accessories such as clips or hoses where possible. We’ll inspect the unit upon arrival, confirm the work required, and contact you if any additional repairs are needed.
