From professional plumbing, electrical, HVAC services and more – TE Certified does it all!

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With TE Certified, you can count on high-quality workmanship for your Duluth area home every time!

We are the home-care service company for Gwinnett County! TE Certified provides plumbing, heating, cooling and electrician service in Duluth, GA when your family needs it most. Our licensed plumbers, HVAC technicians and electricians drive fully-stocked trucks, so we don’t lose any time responding to and taking care of your service call!

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Whether your AC decided to call it quits in the middle of summer, you need to replace an outlet, or you can’t seem to fix that resilient clog, TE Certified is here to help with a variety of home-care tasks and issues. We’re proud to have kept Georgia families safe and comfortable with our reliable services since 1998!

When you’re looking for a great home service company to take care of your home’s heating, air conditioning, and electrical systems, call us at 770-667-6937 , send us an email, or flag us down when we’re in your Duluth neighborhood!

Recent Jobs and Reviews in Duluth, GA

Rated 5.0 out of 5 stars based on 819 customer reviews

Customers say: # Customer Sentiment Analysis The reviews reflect an overwhelmingly positive sentiment toward the service experiences. Customers consistently praise the technicians for their professionalism, knowledge, and thoroughness in diagnosing and addressing various issues. A recurring theme is appreciation for technicians who take time to explain technical matters in understandable terms, with many customers highlighting the educational aspect of their service interactions. The reviews frequently mention exceptional customer service starting from the scheduling process through to completion of work. Technicians are repeatedly described as courteous, friendly, and personable, with many going "above and beyond" expectations. Customers express high satisfaction with the quality of workmanship, problem-solving abilities, and attention to detail demonstrated by the service providers. The overall tone is decidedly positive, with numerous customers indicating they would recommend the company to others or plan to use their services again in the future. Several reviews specifically mention feeling confident in the technicians' expertise and appreciating their clear communication throughout the service process.

Our Local Reviews by City

Job Locations and Reviews

Review
Michael is always very helpful, courteous and thorough when he does work here. He helped me find the light fixtures that I needed from Hone Depot to complete the project.
Sandra - Duluth, GA 30096
Koi P.
Koi P. Checked in
Performed 1 system diagnostic for main level unit. Found failed contactor, dirty condenser, dirty blower, no te flood protection, rusted burners, crack heat exchanger, standing pilot. Furnace is 40 years old coil and condenser is 30 years old. Due to age of system or rusted burners as well as cracked heat exchanger would recommend replacement option . Customer opted for temp fix for the time being nd also get a qoute for replacement. The bare minimum basic repairs to get the system running today. Based on our findings today, it might be time to think about getting a brand new system.
Duluth, GA 30097
Elijah L.
Elijah L. Checked in
Customer had a running toilet upstairs in the master bathroom due to a failing fill valve, so I gave him an option to replace the fill valve ,so after replacing the fill valve the toilet did not run and I also lowered the tube coming up so if it ever do fail, it won’t overflow out of the tank itself because of the drain tube being too high, customer is happy and satisfied, we have a service tech coming out Monday between 2 to 5 to give options to fix sink handles or replace bathroom sink handles
Duluth, GA 30097
Evan Z.
Evan Z. Checked in
Performed Homecare inspection. Through the inception we ended up updating multiple items. 3 new surge protectors were installed at the 3 panels, 4 new Gfci outlets were installed, 6 new dual function breakers were installed, new ground rod and ground were added and connected at the meter outside, and both panels were relabeled. I left estimates to add smoke detectors around the house, Redevice the whole house, adding bidet outlets, and installing two new smart panels.
Duluth, GA 30097
Michael M.
Michael M. Checked in
Replace Lights
Duluth, GA 30096
Michael B.
Michael B. Checked in
Rebuild toilet in 1/4 bathroom on first floor
Duluth, GA 30097
Devon W.
Devon W. Checked in
On this visit I replaced a burnt outlet in basement room and installed a dual function safety breaker. I provided a customer with options to replace main breaker panel and subpanel.
Duluth, GA 30096
Review
The team that came to put our new air-conditioning in was fantastic! They were great! They were all very nice & had great manners. I would highly recommend to friends. Thank you so much!
Julie - Duluth, GA 30096
COREY J.
COREY J. Checked in
Troubleshoot switch in basement
Duluth, GA 30097
Pedro G.
Pedro G. Checked in
-Single stage air conditioner (outdoor) / Single stage, constant torque furnace (indoor).  -10 year parts warranty (20 years for heat exchangers on 80% furnaces)  -10 years labor coverage when a Home Care maintenance plan is held with TE Certified. Lifetime Craftsmanship.  -Removal and disposal of existing system.   -Permit fees are included, system will be inst - alled to meet or exceed county’s codes.   -Cost includes all required material, tax, & labor. No further charges will apply.   -New drain pan, safety float switch, water safety and condensate pump (if applicable).   -New outdoor electrical disconnect, power whip and new pad for outdoor unit.   -New flexible gas line and hard pipe gas connection to furnace.  -Flush, Clean and Test Existing Line Set and Pull Vacuum to 500 Microns.   -Will recover existing refrigerant per EPA guidelines.   -Will complete leak check and system & system start up. .  -Bring existing flue pipe up to current code as needed with double wal
Duluth, GA 30097
Jose E.
Jose E. Checked in
Troubleshoot breaker tripping intermittently
Duluth, GA 30097
Terrance M.
Terrance M. Checked in
Troubleshoot Light Rewired switches Replaced bulbs Replaced breaker Installed whole house surge protection
Duluth, GA 30096
John M.
John M. Checked in
Demo on kitchen drain and supply lines, roughed in getting ready for the cabinets. Also, moved gas line over to specified location of homeowner, bottom portion of wall will be left open for access to the valve. Drained house, put water heater on pilot mode, turned off gas, cut out and installed drain and supply lines to specifications of the homeowner. Also, moved gas line over were homeowner specified to. Pressurized house, purged air out of lines, turned gas on, performed a leak test with the sniffer and bubble. Relight the pilot light, fired up the water heater, tested fixtures, no leaks.
Duluth, GA 30097
Corey H.
Corey H. Checked in
Arrived on site to perform home care service. Checked in with customer and also checked thermostat for power and functionality. Started with furnace in basement garage, checked all electrical connections for tightness, check, blower wheel and motor, tested in heat and cool mode, change filter, Ford cleaner down, condensate pump. Went outside to condensing unit, check, capacitor, checked pressures, disconnect, pump, drain line to ensure no blockages. No TE flood protection on system, left note and quote.
Duluth, GA 30096
JT G.
JT G. Checked in
Gas pipe repair
Duluth, GA 30097
Dalton M.
Dalton M. Checked in
For this job we installed a new chime Kit and transformer for the front video doorbell. The brinks doorbell requires at least 16v. Connected the doorbell to customers phone and programmed it to ring the mechanical chime. Everything functions as it should.
Duluth, GA 30097
Darren D.
Darren D. Checked in
Home inspection
Duluth, GA 30097
Martin M.
Martin M. Checked in
Rebuilt upstairs bathroom toilet, replaced PRV
Duluth, GA 30097
Paul M.
Paul M. Checked in
Came back to complete work quoted in prior visit. Work was done and tested. Thank you for choosing TE Certified!
Duluth, GA 30096
Review
What can I say about Luis, he was prompt, knowledgeable, polite and very professional. More than a just excellent electrician but appeared to a good person. Thanks Luis
Vincent - Duluth, GA 30097
Luis L.
Luis L. Checked in
Thank you for continuing to use TE Certified to help with your Home Care needs. For this appointment I replaced your home’s smoke and carbon detectors. 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 Spring/Summer ahead! -Luis L. 😁👍
Duluth, GA 30097
Miguel L.
Miguel L. Checked in
replacement of outlets and switches throughout the home
Duluth, GA 30096
Zachary B.
Zachary B. Checked in
For this job, we did a full horizontal install, 2 new plenums, Zoning with 5 dampers, 2 thermostats, new flue pipe, new drain to the wall, wrapped multiple dampers with insulation, ran all new wiring for zoning, media cabinet add on
Duluth, GA 30096
Martin M.
Martin M. Checked in
Replaced straight stop on toilet that was in laundry room. Tested for leaks, no leaks were found. House pressure is at 70 psi. purged the waterlines of air, except the fixtures that homeowners told me not to open.
Duluth, GA 30097
Corey H.
Corey H. Checked in
Arrived on site for homecare service. Checked in with customer and also checked thermostat for power and functionality. Started with furnaces, checked all electrical connections for tightness, blower motors and wheels, tested in heat and cooling modes, changed filters, and checked drain lines. When turning on cooling mode for upstairs unit on, fan come on but no refrigeration running through line set. Went outside to condenser, opened up panel and found all wires on the capacitor are off. Tested capacitor to make sure still good, re connected wires, waited for 5 min timer delay and nothing happened. Went inside to thermostat and put in call for cool, nothing happened. Went back into furnace and found no voltage on r terminal. Checked over wires and found wet switch to be wired wrong. 24 v wire off of transformer had somehow became loose and was chilling in the background. Re wired wet switch correctly and turned system on. Jumped r and y at control board.. cool came on. Jumped r and y
Duluth, GA 30096
Arnaldo C.
Arnaldo C. Checked in
Performed home care on two systems. Checked all electrical and amperage. Flushed and treated drain line. Changed filter 16×25×1 and 16×20×1. Clean the flame sensors. Flushed and treated drain lines. Flushed and treated condensate pump. Cycled condensate pump to ensure proper operation. Check the evaporator coils and blower wheels. Checked outdoor units. Checked capacitors, contactor and pressures. Main floor, no in-line safety. No auxiliary drain pan. Dust buildup on evaporator coil. Bad dual capacitor. Debris on bottom of condenser coil. Second floor, no in-line safety. Blower capacitor, failing. Condenser coil, dirty, and has debris on bottom of condenser coil.
Duluth, GA 30097
COREY J.
COREY J. Checked in
Troubleshoot existing pendant lighting that is flickering when turned on, client states they heard a loud pop once before when turning the lights on, lights have remained off since then.
Duluth, GA 30097
Michael M.
Michael M. Checked in
Adding Outlets
Duluth, GA 30097
Review
Total experience was very professional. Matthew gave me four options of services to be completed. Explained everything that was done. Very satisfied.
Deb - Duluth, GA 30096
Review
Johnathan was on time, thorough in his work and extremely professional. A breath of fresh air from a customer perspective.
Don - Duluth, GA 30097
Review
Excellent service, very professional
Larry - Duluth, GA 30096
Review
Tony was very thorough and walked us through our options for the service. We would 100% recommend him and request him for any needs in the future.
Denise - Duluth, GA 30097
Review
Anytime I need electrical work done I ask for Adam. Very professional, knowledgeable, and is all about customer service. He always will give you a quote before he starts the job. He has 27 years in the business and the best of the best.
Jonpaul - Duluth, GA 30096
Review
Jason was fantastic! He was on time he fixed what we needed to be fixed. He also explained everything to me. He was very helpful and got our air back up and running! THANK YOU JASON!
Julie - Duluth, GA 30096
Review
I requested Johan to install smart light switches after receiving excellent repairs services on a different electrical issue. Johan was prompt, effective and very friendly. Johan is willing to explain how the systems work and provides valuable advice. I intend to continue working with Johan on future electrical work.
Joaquin - Duluth, GA 30097
Review
Travis came up with multiple solutions to my problem, communicated them clearly. He promptly got the material, completed a quality repair, and did so with a friendly style. Would definitely use Travis again if I have other plumbing needs.
Kevin - Duluth, GA 30097
Review
Terrance was very professional, patient, and accommodating! He did excellent work in our kitchen while we were all home and in and out with our young children. Gold star!
Haylee - Duluth, GA 30096
Review
Professional
Mike - Duluth, GA 30096
Review
Great service
Jane - Duluth, GA 30096
Review
Mr. Maddox arrived on time and cleaned the work areas after he finished the job. He was professional and courteous.
Niansen - Duluth, GA 30096
Review
Excellent Service!
Kobby - Duluth, GA 30097
Review
The gentleman today was so wonderful. He was efficient. He was courteous. He was on time. I have no problems recommending him highly.!!!
Kathy - Duluth, GA 30097
Review
Excellent Service
Barb - Duluth, GA 30097
Review
Jared was very polite and knowledgeable. He came out on Saturday to diagnose the issue and came back Tuesday to fix it after figuring out the warranty and picking up the necessary parts.
Nancy - Duluth, GA 30097
Review
Very happy with the work done!
Carey - Duluth, GA 30097
Review
We were very happy with the work Martin did for us.
Carey - Duluth, GA 30097
Review
Very professional Nathan made sure that I understood everything it looks great!
Laura - Duluth, GA 30096
Review
He was professional and very nice and thorough.
Cheryl - Duluth, GA 30096
Review
Very thorough and professional. Would definitely recommend Demarco for plumbing needs
Mary - Duluth, GA 30097
Review
Will certainly recommend TE Electric along with John Moran & Cody, top notch.
Scott - Duluth, GA 30096