Hendren Services & Code Academy

04/19/2026

Do you still need your gauge recalibrated for the season? Turnaround time is 1day for ONLY $80. Contact us today 816-214-0947
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04/18/2026

We had a great time and met some wonderful people at the ASSE Mid Year conference in St Charles MO!
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04/13/2026

Congratulations to this great group of guys who just completed our ASSE Backflow Recertification class
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03/21/2026

If you’re looking for an ASSE Backflow Certification or Recertification Class, CALL us today 816-214-0947
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Get your ASSE Backflow Certification/Recertification or your Master Mechanical/Master Plumber License with our Exam Prep materials and classes

03/19/2026

It’s not too late to join our next Master Plumber Exam prep class on 3/28/26. This comprehensive one day class provides all you need to PASS your Master Plumber Exam. Call/text 816-214-0947 or visit our website at hendrenservices.com
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03/17/2026

Congratulations to the MARCH 2026 ASSE Backflow Certification class
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02/16/2026

Need your HVAC license to pull permits? You’re in luck! We still have room in the Master Mechanical Exam Prep Class THIS Saturday. Call/text us today 816-214-0947
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02/16/2026

Congratulations to these guys for completing their ASSE Backflow Recertification class. Glad we could recalibrate your gauges while you were here. See you again next year!
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02/04/2026

Our next Master Mechanical(HVAC) Exam Prep
class is 2/21/26. Text, call, or visit our website to register today

Get your ASSE Backflow Certification/Recertification or your Master Mechanical/Master Plumber License with our Exam Prep materials and classes

01/29/2026

There’s still time to join our Master Plumber Exam Pre Class THIS Saturday 8-4. Call TODAY (816)214-0947
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