1. Waterdraws
  2. Instrumental Certification 
  3. Professional Consulting Services Around the Clock 
  4. Meter Prover Flow Skid Fabrication & Inspection 
  5. Mobile Service Equipment 
  1. Liquid petroleum provers in all types 
  2. Has the capabilities to manufacture L.A.C.T units 
  3. Prover & L.A.C.T unit refurbishment 
  4. Waterdraw system development 
  1. Pipeline Prover Spheres in all sizes 
  2. Prover detector switches in all brands 
  3. Prover 4-way valves in all shapes and sizes 
  4. ​Liquid petroleum meters in all types 
  5. ​​Around the clock consulting 


  1. Prover Spheres 
  2. Detector Switches  
  3. 4-Way Valves 


Contact Us Today

Satisfaction Guaranteed
  1. Waterdraw Units 
  2. Calibration Towers 


  1. Liquid Petroleum Meters
  2. General Valves  
  3. And More 

Through subcontractor affiliates, Certified Calibrations offers:

Licensed, Bonded & Insured

Services & Products

For customers seeking high volume & low volume prover certification near you. We offer a state of the art mobile facility that is strictly built to NIST 105-3 2010 & OIML R-120 standards.

In which is NIST certified and is manufactured to be highly accurate when performing your everyday prover certification needs. We also provide prover accessories in any brand and size. Also if you're seeking LACT units, we can offer you those as well through our highly certified sub-contractors in the area. 

  Certified Calibrations offers a wide range of products and services to meet your needs, including: 

Introducing New Meter Prover Calibration Services!

For more information on our products and services or to request an initial consultation, contact us today. We look forward to working with you!

Locally Owned & Operated
832-998-4888 or (888)-681-5540