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

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Local Reviews
for lawrenceville, ga

Rated 4.9 out of 5 stars based on 589 customer reviews

Excellent Service

Jason did a great job!

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Excellent Service

Competent. Explained problems thoroughly and simply. Excellent service.

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Excellent service

Outstanding service, as always! I’ve been requesting Luis for nearly two years, and he consistently delivers exceptional results. He’s professional, punctual, and his work is always of the highest quality. Today, I had the pleasure of meeting Alejandro, a new addition to the team, who impressed me just as much. He was highly professional and demonstrated a fantastic work ethic from start to finish. I’ll absolutely continue to book both of these gentlemen for future projects. Highly recommended!

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Amazing customer service

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Good service

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Electric service

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Great service

I have to say, I wasn't sure the team would be able to install a new furnace and air conditioner and do the extra duct work needed in just 12 hours. They did everything on time as promised and it all looks great. Would definitely use them again.

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Another great job

As usual, TE Cert technicians displayed expertise and professionalism throughout this entire installation process. Over several years using TE Cert exclusively for all of my home electrical (and plumbing and HVAC) issues, these are my "go-to guys."

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Amazing Service!!!!

Terrence Miller was great. He was professional, quick and offered information on the surge protector for the entire household which I bought. He is a great asset to your company. He was very detailed in teaching another technician that was with him. I would use this company again because they hire the best of the best!!!!!

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Top level service

On time. Worked to check system and cleaned.

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The Company fitted me in the very next day!

A great experience! The team came on time and finished unless than 5 hours! The were very nice and answered all my questions

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Great service all the time

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Professional and Thorough

Jonah and Abe arrived on time and thoroughly diagnosed the problem. They were personable, professional, and kind. They worked over 12 hours to make sure that the job was complete.

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First time using this Company

Fast, easy and professional

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5 stars

Excellent

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Job Locations
for lawrenceville, ga

Jose L.

Jose L. Job Checkin

Electrical panel replacement


Galen H.

Galen H. Job Checkin

Replace washer box


Nolan K.

Nolan K. Job Checkin

figure out why , both garages and laundry lights do not work intermittently , why basement receiver intermittent turns off Replace gfi in garage Install new switch and tap in laundry room


Paul  M.

Paul M. Job Checkin

Today found mini plate leaking water from indoor, mini split has never been serviced, found drain line clogged also while testing outdoor system found refrigerant levels were low. Let customer know about this and recommend a leak search or a system upgrade. Also gave customer another options for repair. Customer decided to move forward with Band-Aid repair considering that he doesn’t use this system as often. Costumer understands that this is a temporary repair and won’t fully solve the problem long term. Work was done and tested, system is working properly at this time. Thank you for choosing TE Certified!


Jonah D.

Jonah D. Job Checkin

- 9/11/25: Came out for system, not cooling. Found the unit completely frozen up from the indoor to the outdoor unit, including the compressor. Informed the tenant as well as the homeowner. Homeowner needs to make sure that the tenant keeps the system turned off before we come. The filter was slightly dirty, but could not confirm that this was what is causing the immediate issue. We will need to return to diagnose. - 9/12/25: today we came out to check the system after it was frozen and found that the unit is short on ductwork which includes the return as well as an improper design of the zoning on the supply side. The unit requires a 12 inch bypass based on the airflow rather than a 10 inch to carry more air when only one zone is open. the system is also short on return by an 8 inch duct that we would need to add on. Also noticed that the system has subpar protections and the evaporator coil is putting off a “dirty sock” smell from the vents. Due to the ductwork issues, the system i


Gavin T.

Gavin T. Job Checkin

Installed New Rheem Hybrid Water heater with 10 year warranty


Ron O.

Ron O. Job Checkin

Troubleshoot lighting in elevator lobby and stairwell. Provide quotes for repairs.


Luis L.

Luis L. Job Checkin

Thank you for continuing to use TE Certified to help with your Home Care needs. For this appointment we replaced your bedroom ceiling fan with a new chandelier. 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 and your beautiful home. Take care, stay blessed, and have a great week ahead! -Luis L. 😁👍


Jason S.

Jason S. Job Checkin

Change out light bulb on stairs and kitchen light. Replace smoke on main floor


Jason S.

Jason S. Job Checkin

Replaced bulbs and smoke detectors


Rudy Z.

Rudy Z. Job Checkin

No cool call. System was frozen from evaporator coil to compressor due to clogged air filter. Advised homeowner to leave system off for 8 hours so it can thaw out naturally before turning it back on. Also recommended to change filter more often. When I checked the air filter in July, the filter was good.


Payton W.

Payton W. Job Checkin

Diagnosed issue causing loss of power in master bed Replaced two burnt outlets


Koi P.

Koi P. Job Checkin

Performed scheduled repair. Replaced blower motor, run capacitor, cleared and treated drain line, added inline switch and wet switch to get unit up to te standard flood protection. Did find rusted evap coil and checked pressures. No other immediate issues needing attention at this time. Make all repairs necessary to restore the unit to full health and eliminate all other concerns.


Yael M.

Yael M. Job Checkin

Inspection to sell home


Jose Z.

Jose Z. Job Checkin

Replaced line set and added linehide