Backflow Preventer Testing & Inspections

Backflow preventers are an important part of your fire protection system.

Located between your fire protection system and the water source that supplies it, a backflow preventer ensures that the water inside your sprinkler system doesn’t backflow into your water supply, causing potentially hazardous cross-contamination to the drinking water.

There are two main backflow preventer types used for fire safety systems: Double Check Valves (DCVs) and Reduced Pressure Zones (RPZ).

DVCs are most commonly used for low-hazard settings where a cross contamination wouldn’t result in a health hazard.

RPZs are typically required in high-hazard settings. These include those where a cross-connection that is unprotected could result in contamination to the water supply and cause disease, illness, or even death.

At Certizona, we are well versed in all types of backflow preventers. With over thirty years of experience, our expert team can take care of your annual backflow testing and inspection, maintenance, repairs, and replacement.

We can also provide the necessary paperwork for submission to your local fire department and insurance provider.

Backflow Preventer Testing, Inspection, and Maintenance

Testing and inspections are required per NFPA 25 & local/state water departments to assure that all backflow preventers are up to code and will operate effectively and safely.

During a routine inspection, Certizona’s highly trained and certified service technicians will perform thorough testing.

This includes a visual inspection of the backflow assembly for damage, corrosion, and leaks.

Additionally, all valves are pressure tested to confirm that the assembly is operating correctly.

Following testing and inspection, we will forward a complete and detailed system report to you and the authority having jurisdiction in your local area (city water department).

Backflow Preventer Repairs and Replacements

If the device shows signs of water leakage, it will need to be repaired or replaced.

Repairs can vary from simple fixes like o-rings or rubber gasket replacement kits to more comprehensive fixes like replacing the valves or even the entire assembly.

Certizona – Expert Backflow Preventer Services in Phoenix, Mesa, and Surrounding Areas

Certizona works with you to make sure your fire protection system aligns with the backflow testing requirements in your local area.

If repair is necessary, we can help you find the most cost-effective route.

We belong to the National Association of Fire Equipment Distributors and the National Fire Protection Association. As leaders in the fire safety industry, we are Backflow, CSA and NICET certified and are equipped to handle the backflow preventer testing, inspection, maintenance, repairs, and replacement for your commercial or industrial facility.

Call us today at (623) 227-2092 to learn more or to get a free quote on our services!

Current Offers
  • Free Estimates
  • Monitoring discounts: 10% off monthly fees if paid quarterly, 20% off monthly fees if paid annually
  • 5% off first year’s service of annual testing and inspections with 3-year service agreement
  • 10% off first year’s service of annual testing and inspections with 5-year service agreement


Brooke Logan

Certizona provides real quality Customer Care! They were professional, knowledgeable and safety focused! They took the time to teach us how to use an extinguisher correctly and which one is for which fire type! I feel this was SO valuable for the safely of our clients as well as our own families! Thank you for going above and beyond! 

Chip Jordan

Certizona Fire & Safety provided professional service, with quality products at an exceptional price. Steve Rogers, can’t say enough about him. He is extremely helpful and knowledgeable at his craft. If you own or run a business that requires annual inspections for your fire equipment, give these guys a try … you will not be disappointed.

Char Gomez

I love that the office staff contacts us and sets up an appointment in advance.  Steve was pleasant, informative and great to work with.  We would certain recommend them for any product or service you might need.

Dee Dee Shafer

Steve Rogers is AWESOME!! He went above and beyond while visiting my storage site, making sure I was confident and comfortable, on how to properly use a Fire Extinguisher if ever needed. I am so grateful for him and the obvious love he has for his job.

Copperhills Church

Steve did the annual inspection of our fire extinguishers and exit lighting.  He was very thorough, professional and friendly.  We appreciate the prompt service and will definitely continue to use Certizona Fire & Safety!  Thank you!

Mikel Sitterly

We have had a few Fire and Safety companies service our fleet extinguishers over the years.  The “other guys” never seemed to have time for us and would only service a few extinguisher at a time.  Most of the time the “other guys” would tell us they couldn’t service an extinguisher and needed to sell us a new one. Certizona is just the opposite of the “other guys”.  They are on time, very responsive and very professional.  They serviced our extinguishers on site and in a timely fashion.  They didn’t ask for our first born sons, nor did they ask for an arm and a leg.  They are fair on their pricing and eager to show us how it all works.  Everything they did was transparent and honest.  I could not recommend a company more.  Look if you have Fire and or Safety needs.  Definitely give Certizona a shot.  You will not be dissapointed.

Potter’s House Apothecary

Certizona Fire and Safety has done our annual fire inspections and maintenance for the past 3 years. We are always pleased with the service and reporting they provide. Steve came out this year and went above and beyond the standard level of service expected to take care of any issues we had. I highly recommend the company.

Drew Carroll

Steve was immensely helpful. I called Certizona out to inspect and certify our fire extinguishers but Steve did much more for us! Being a pastor of a small church, I don’t really know anything about fire code and what the Marshal is looking for but Steve helped walk me through that. By the end, all our exit signs and fire extinguishers were certified and ready to go. I recommend Certizona highly!

Armando Montes

Steve was amazing! Diligent worker with attention to detail and very fast! We had Certizona install a few fire extinguisher cabinets and are very satisfied with the clean work that was done! Thank you Steve, we will be using your services in the future.

Krissy Wertz

I definitely recommend Certizona for your fire & safety needs. The office staff with very polite and made the booking process easy. Steve was awesome to work with… he was on time and extremely professional. We are so thankful Steve was able to explain everything thoroughly to us and did a great job with our installs.