9800 Old Dogwood Rd.
Roswell, GA 30075
(770) 667-6937

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Local Reviews
for grayson, ga

Rated 5.0 out of 5 stars based on 79 customer reviews

Excellent service

See my ratings

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Excellent Service

When I first moved into my home a friend recommended Knight Air. They were a family owned business, honest, reliable and reasonably priced. I’ve used a few different companies since they sold their business. I think I finally found my new company with TE Certified. I received a text from Jonah with his picture, introducing himself as my tech and telling me when to expect him. He actually showed up early. He was polite and professional and respectful of my home. We talked about the problem and the age of my units, then he went to work. He informed me of his diagnosis and I authorized the work. He later presented me with a written report of the work he’d done and recommendations for options I might want to consider. He was the consummate salesman - personable without being pushy. I declined his recommendations but I did sign up for their maintenance plan. He informed me that the previous tech had installed filters that were too small so he replaced them with the proper sized filters. I learned they also have certified electricians and plumbers. From my experience with Jonah I highly recommend TE Certified for your HVAC needs.

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Very good service.

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Great service .

The crew arrived in the time frame. Once my yard was marked for utilities, the work to replace my main water began, This is why I have stuck with T E Certified for many years.

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Excellent service

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Excellent service

On time, courteous , covered his shoes before entering house. Michael is just a gentlemen.

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Outstanding!

Everything about this from making an appt, communication and the actual work was outstanding. The cost was reasonable. Will definitely use them again!!


Response from TE Certified Electrical, Plumbing, Heating & Cooling:

We appreciate you for sharing your experience, Jennifer! It’s great to hear everything from start to finish met your expectations. Please feel free to reach out whenever you need us again.

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Excellent Service

TE certified provided an excellent experience with solving my electrical issue. The technician was prompt, knowledgeable and courteous. The billing was up front and fair. I will definitely use them again.


Response from TE Certified Electrical, Plumbing, Heating & Cooling:

Hi Alfred! Thank you for the kind words! We’re glad to hear your experience with TE Certified was smooth and professional from start to finish. It’s great to know our technician’s expertise and clear, fair pricing made a difference. We look forward to helping you again in the future!

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Professional and top quality service from TE Certified

On my recent electrical upgrade project, TE Certified assigned both Nathan Ruis and Ana to my project. These two technician are fantastic - professional and did a great job. Overall experience is amazing. Keep up the great work guys!

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Excellent & Top Quality Service!

Both Nathan and Javier was assigned to my new project and these two gentlemen are both meticulous and professional in carrying out their work. The electrical work carried out by TE Certified electricians are absolutely top notch as compared to previous electrical contractors I had hired. I think great employees like Nathan and Javier definitely makes a different and carry the brand of TE Certified further. Keep up the great work guys!

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Excellent Service

Mauricio was phenomenal.

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Excellent & Professional Service

Javier was assigned with Nathan to my project. I'm absolutely happy to have contracted to TE Certified for my project because of good working professional like Javier. His job is top quality and he constantly communicates with me whenever there are some potential challenges he see with my original plan. Javier also go all the way out in his work, including crawling near the edges of the attic/roof during the installation of the PoE cable and WiFi AP. I greatly appreciate all the nice work Javier had done for my project. Highly recommended!

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Top Notch Service - Excellent Personnel

I'm so happy to have Jose assigned to my project. His work is professional and of top quality. Jose communicates frequently with me on any decisions to be made and also provided great advice when the situation arises. I'm really happy to have contracted TE Certified for my project and greatly appreciate Jose's professionalism, great customer service and a fantastic person to collaborate with.

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Excellent & Top Quality Service!

Nathan was absolutely professional and fantastic when working on my electrical project. His work is really good and he also listens to customer. I'm really happy to have contracted TE Certified for my project and greatly appreciate Nathan to be assigned to work on it.

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Great, Honest Service

My two HVAC systems needed several repairs to extend the life of the systems. One service recommended by my service man was to have a leak test because the Freon was a little low in one air conditioning unit. However, once he discovered that the unit needed only 1 lb of Freon, he didn’t think there was a leak. He suggested we wait until my next semi-annual inspection to see whether the Freon was low again before testing. That saved me $800, so I really appreciated his honesty. As always, I’m highly satisfied with TE Certified.

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Job Locations
for grayson, ga

Jonathan W.

Jonathan W. Job Checkin

Customer has 4 y/o 2-zone Goodman furnace matched with 3 y/o Goodman AC that operates for whole house. Furnace control board indication light was not displaying although power was supplied to board. Reset power from door switch and indication light for furnace control board came on. Noticed some browning and bubbling on back of furnace control board. Also, noticed that zone board and furnace control board are using same transformer, which should be separate. Zone dampers were not wired correctly. Dump zone used instead of bypass damper. Water protection is poor. Blower wheel cleaning needed. Ductwork looks to be insufficient for 5-ton AC.


Luis L.

Luis L. Job Checkin

Thank you for continuing to use TE Certified to help with your Home Care needs. For this appointment I extended your existing garage outlet circuit to a new closet outlet for your new self cleaning liter box. I’ve attached all the pictures taken throughout the process with this invoice. If you have any questions or if you experience any electrical issues, please contact me directly. If you would like help from any of our other professional tradesmen with 5% off your next home improvement solution, please contact our office and they will happily assist you. Thank you again for your time and the opportunity to serve you, your family, and home. Take care, stay blessed, and have a great holiday season! -Luis L. 😁👍


Hubert K.

Hubert K. Job Checkin

Replace regular doorbell with ring and replace back patio sconce light with ring flood light


Jose E.

Jose E. Job Checkin

Electrical inspection


Carlos G.

Carlos G. Job Checkin

Install ceiling fan Install light above sink


Jonah D.

Jonah D. Job Checkin

Tested system not heating for whole home. Found unit is short cycling due to cracks in heat exchanger. Based on our findings today, it might be time to think about getting a brand new system.


Jonah D.

Jonah D. Job Checkin

TESTED SYSTEM NOT HEATING FOR MAIN LEVEL. FOUND BLOWN FUSE DUE TO A SHORTED CONTACTOR @ AC. SYSTEM LACKING FLOOD PROTECTIONS, THERMOSTAT IS EYESORE TO CUSTOMER, PLENUMS ARE OUTDATED DUCTBOARD/ FIBERGLASS.


Martin B.

Martin B. Job Checkin

Troubleshooting open ground circuit


Luis L.

Luis L. Job Checkin

Thank you for contacting TE Certified to help with your Home Care needs. For this appointment we installed your new Tesla Wall Connector next to your main panel and a whole home surge protector for your main panel as well. I’ve attached all the pictures taken throughout the process with this invoice, as well as the other estimate I mentioned today. If you have any questions or if you experience any electrical issues, please contact me directly. If you would like help from any of our other professional tradesmen with 5% off your next home improvement solution, please contact our office and they will happily assist you. Thank you again for your time and the opportunity to serve you, your family, and home. Take care and have a blessed holiday season! -Luis L.


Devin O.

Devin O. Job Checkin

Troubleshoot smart breaker


Jay G.

Jay G. Job Checkin

Cleared blockage in basement bathroom with closet auger


Jason B.

Jason B. Job Checkin

Checked water heater temperature and provided quotes for multiple repairs


Jason B.

Jason B. Job Checkin

Remove and replace expansion tank. Repair pop ups in both bathrooms and rebuild master toilet


Martin B.

Martin B. Job Checkin

Replace 2 outlets


Johan R.

Johan R. Job Checkin

For this job, we ran 668 wire through an unfinished basement, to a ChargePoint, which we installed and set up with the customer