832-998-4888 or (888)-681-5540


  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 
  1. Waterdraws
  2. Instrumental Certification 
  3. Professional Consulting Services Around the Clock 
  4. Meter Prover Flow Skid Fabrication & Inspection 
  5. Mobile Service Equipment 

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!

  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 
Licensed, Bonded & Insured
Satisfaction Guaranteed
  1. Waterdraw Units 
  2. Calibration Towers 


Through subcontractor affiliates, Certified Calibrations offers:

Locally Owned & Operated

Contact Us Today

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: 

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