Keep Your Home Comfortable With Quality HVAC Services In Wallingford CT
X-Treme Temp Heating & Cooling is your go-to HVAC service provider in Wallingford, CT! We’re the experts in home comfort year-round, from AC and heating repair to ductwork and water heaters. We’ve got you covered from installation to maintenance so you can have peace of mind about your heating and air conditioning.
Read the reviews below from Wallingford, CT residents to see what your neighbors say about our expertise and customer service. We can’t wait to work with you!
Local Reviews
for Wallingford, CT
Customers say: The reviews reflect an overwhelmingly positive sentiment toward the HVAC service company. Customers consistently express high satisfaction with the technicians' professionalism, punctuality, and technical expertise. A recurring theme throughout the feedback is appreciation for clear communication, with many clients highlighting how thoroughly technicians explained problems, solutions, and repair processes in understandable terms. The service quality is repeatedly praised, with customers noting efficient troubleshooting, thorough maintenance work, and effective problem resolution. Many reviewers indicate strong loyalty to the company, mentioning they are repeat customers or plan to use the service again in the future. The overall tone is decidedly positive, with customers valuing the company's responsiveness, reasonable pricing, and the technicians' friendly demeanor. The reviews collectively portray a reliable HVAC service provider that delivers quality workmanship while maintaining excellent customer relations.
Our Reviews by City
Excellent Service
Lia - Wallingford, CT 06492
Great service experience!
Pete - Wallingford, CT 06492
Thanks for the great service. Andrew was very professional and knowledgeable about our heating system. He provided great detail on how the system works and provided recommendations to improve it. Very much appreciated the timely service.
Service was excellent
MaryAnne - Wallingford, CT 06492
Excellent service
MaryAnne - Wallingford, CT 06492
Always a pleasure
Sam - Wallingford, CT 06492
Great service!
Eileen - Wallingford, CT 06492
As always Andrew and his apprentice were welcome professionals to our home. Communication, timeliness, expediency, neatness, and price all great.
Very satisfied
Piroska - Wallingford, CT 06492
Larry came on time, and fixed the problem quickly and professionally. I had excellent experience with him and I can’t thank enough to Lisa . Definitely recommend to anyone !!
Excellent service
Paul - Wallingford, CT 06492
Arrived on time. Appeared to know exactly what to do. Excellent and friendly service.
Great service!
Seamus - Wallingford, CT 06492
Larry was on time and very professional. They reached out ahead to confirm as well, which was nice. He provided the requested testing/tune up and was able to help with some minor issues that were discovered, right then and there. I would highly recommend.
Great service
Bill - Wallingford, CT 06492
Andrew got right to work. I observed that he was also sharing his knowledge with his helper.
Reliable, competent, and customer-oriented
Marisa - Wallingford, CT 06492
I’ve used Xtreme for all of my HVAC needs (new furnace, ductless and HW heater included. They are skilled, reliable, and straightforward. Their prices are transparent and reasonable
Larry provided excellent service
Lia - Wallingford, CT 06492
Always a true professional!
Eileen - Wallingford, CT 06492
It’s comforting to have a reliable, efficient, affordable and timely service provider who is additionally polite and friendly! Andrew and his apprentice were a pleasure to welcome into our home!
EXCELLANT service
Lori - Wallingford, CT 06492
These guys are great!
Suzanne - Wallingford, CT 06492
Not only are we customers, but I referred my son to them when he found himself without heat They responded quickly and were able to fix the problem right away for him
Terrific service
Jamie - Wallingford, CT 06492
Terrific service. He went above and beyond in servicing my furnace.
excellent service
rmiller7861 - Wallingford, CT 06492
Excellent Service
Brooke - Wallingford, CT 06492
Larry was very kind, knowledgeable, and friendly!
Excellent service
Otto - Wallingford, CT 06492
Thorough on time and explain the the results of the cleaning. Carried himself professionally, took the time to explained everything.👍
Excellent service
peter - Wallingford, CT 06492
Great guy, informative and professional.
mark - Wallingford, CT 06492
Great job!
Jane - Wallingford, CT 06492
Excellent Service
Sue - Wallingford, CT 06492
Andrew is a very knowledgeable person and is very professional when he comes to our home to service our heating and cooling systems.
Great service at a reasonable price
Ron - Wallingford, CT 06492
Fantastic service at a reasonable cost. The tec. Reviewed everything he did I was very satisfied and highly recommend Extreme to my family and friends.
Always accommodating
Dorene - Wallingford, CT 06492
We love the whole crew! Highly recommended
Andrew H.
9.0% O2, 0 ppm, 0 smoke, and 87.0% efficiency.
Andrew H.
Water Heater Maintenance: Conducted routine maintenance on a 40-gallon electric water heater. Inspected the tank for corrosion, flushed sediment buildup, checked and tested the T&P valve, and examined the anode rod. Verified electrical connections and heating efficiency. System now provides safe, consistent hot water and is in good operating condition.
Dyllan M.
AC Repair Service: Homeowner reported the AC unit intermittently shutting off during cooling cycles. Inspected the outdoor condenser and indoor air handler. Found a failing contactor and loose connections in the condenser wiring. Replaced the contactor, tightened all electrical connections, and tested the system through multiple start/stop cycles. AC now operates reliably without interruption.
Andrew H.
AC Repair: Homeowner reported warm air from vents and a humming noise from the outdoor unit. Inspected the system and found a failed blower motor capacitor and partially seized fan bearings. Replaced the capacitor, lubricated the blower motor, cleaned and straightened evaporator coil fins, and tested airflow and refrigerant pressures. System now provides consistent cooling with quiet operation throughout the home.
Andrew H.
Upon arrival, the unit was off. I turned the power on and verified the fan function, which was working properly. When I activated the heat, the air handler turned on, but there was no refrigerant flow. Investigating further, I found no power at the condenser disconnect. The breaker for the condenser was mislabeled and off, which I corrected. After restoring power, the condenser started. Temperature checks showed a 26°F split with the condenser and emergency heat running, indicating proper operation. I also found soaked insulation in the return plenum, recommending its replacement to prevent growth. I will send a quote for insulation replacement and a leakbreaker valve with a water sensor for the water heater.
Andrew H.
8.1% oxygen, 0 ppm CO, and no smoke. During maintenance, I identified an issue with the burner coupling, which was beginning to strip inside. After obtaining customer approval, I replaced it with a new one, ensuring the unit operates correctly.
Andrew H.
8.8% O2, 4 ppm CO, and no smoke. During maintenance, I discovered significant sludge buildup at the oil filter canister, necessitating multiple oil line flushes to clear a blockage at the oil tank shut-off valve. Photos and measurements were taken for an oil tank replacement quote.
Andrew H.
I began by safely draining the system to eliminate any residual pressure. The old autofeed, backflow preventer, and pressure relief were meticulously removed. A new pressure relief, backflow preventer, and autofeed were then installed, ensuring all components met industry standards. The system was refilled with water and all radiators were purged to remove any air pockets. After starting the system, I conducted thorough testing to confirm proper operation, verifying that hot water circulated to all radiators and that the boiler return was functioning correctly. Upon completion, the boiler pressure was set to 25 psi, ensuring optimal performance.
Andrew H.
Upon arrival, the customer reported a thermostat that was repeatedly clicking on and off, with occasional power loss. After investigation, I discovered the thermostat was not securely attached to the backplate. I adjusted the thermostat wire, ensuring it was properly inserted into the wall, which resolved the issue of the relay hitting the wire. The thermostat then mounted correctly onto the backplate. Following this adjustment, I tested the furnace operation, which was functioning properly.
Andrew H.
Upon arrival, the customer reported an issue with the remote control for the bedroom unit. The LCD screen displayed an extra symbol next to the swing icon, which was unfamiliar. After a thorough investigation, I identified that the extra symbol indicated horizontal swing for the louvres. I checked other remotes and confirmed that none displayed this additional symbol, suggesting a potential issue with the specific remote. Given that the remote lacks the capability to adjust horizontal swing, it is likely that the display is malfunctioning. To ensure everything was functioning correctly, I tested the unit's operation and confirmed it was working properly. The customer was informed about the potential remote issue and advised on the unit's proper functionality.
Andrew H.
Our team meticulously cleaned the flue pipe and heat exchanger, ensuring they were free from dust and debris. We replaced the oil filter, nozzle, and strainer to maintain optimal performance. All electrical connections and safety features were thoroughly checked for reliability and safety. We conducted comprehensive combustion and smoke tests, achieving excellent results with 7.5% oxygen, 1 ppm carbon monoxide, and zero smoke. Based on our findings, we recommend installing a tiger loop for the oil line to reduce stress on the oil pump, enhancing the system's longevity and efficiency. Our thorough approach ensures your heating system operates safely and efficiently.
Larry H.
I inspected the second-floor air handler, ensuring the drain pan and drain line were free from cracks or leaks. Upon spraying water on the evaporator coil, I noticed water dripping into the return plenum instead of draining into the pan. To address this, I chemically washed the coil, which successfully restored proper drainage. For the oil furnace and oil hot water heater, I conducted a thorough heating preventive maintenance check. This included brushing and vacuuming the components, replacing the oil filter, nozzles, and strainers. I also replaced the air filters, ensuring they met the specifications of 14x20x1. After starting the systems, I checked all safeties and performed a combustion test. Both systems are now operating efficiently.
Andrew H.
I conducted a comprehensive preventive maintenance service on a Heat Pump system. Starting with a visual inspection, I examined the indoor evaporator coil and blower compartment for any signs of wear or damage. All electrical connections and safety mechanisms were checked for proper functionality. I measured the system's voltage and amperage to ensure they were within the manufacturer's specifications. The air filter was inspected, confirming it had been recently replaced by the customer. I cleared the drain line and tested the drainage by pouring water to ensure it was functioning correctly. Refrigerant levels were checked and found to be adequate. The capacitor was tested for proper capacitance, and the heating elements were inspected along with their amperage draw. The system achieved a 15° temperature differential with just the heat pump and a 25° differential with the heating elements engaged.
Larry H.
Upon arrival, the burner was in the reset mode. I reset the control, which successfully started the burner. I then inspected the oil flow and transformer, discovering a significant amount of air in the oil line. I bled the line until clean oil was flowing. Next, I removed the nozzle assembly, finding it heavily coated with black carbon buildup on the turbulator. I thoroughly cleaned the assembly and replaced the nozzle. After reassembly, I started the system and cycled it several times to ensure proper operation. I recommend scheduling a professional service to maintain the system's efficiency.
Larry H.
I began by carefully removing the existing Carlin Primary Control, ensuring all connections were safely disconnected. I then installed a new Carlin Primary Control, meticulously following manufacturer guidelines to ensure proper alignment and secure attachment. After installation, I started the system and conducted multiple tests to verify functionality and performance. Each test confirmed that the new control was operating correctly and efficiently. The job was completed to the highest standards, ensuring the system's reliability and longevity.
Larry H.
I conducted a comprehensive preventive maintenance service on an oil boiler. The process began with thorough brushing and vacuuming to ensure cleanliness. I replaced the oil filter, nozzle, and strainer to maintain optimal performance. After starting the boiler, I verified all safety mechanisms were functioning correctly. A combustion test was performed, yielding results of 5.7% oxygen, 28 ppm CO, 0 smoke, and 81.0% efficiency. The system is now operating efficiently and safely.
Larry H.
Upon receiving a call, I inspected the boiler and found oil dripping from the nozzle into the blast tube. The burner was rumbling, and the nozzles were spraying incorrectly. I replaced the faulty nozzle, restarted the system, and conducted a combustion test. I adjusted the barometric draft damper to -.04, ensuring proper draft. The system is now operating efficiently and safely.
Larry H.
7.8% oxygen, 24 ppm CO, no smoke, and 82.1% efficiency. The system is now operating efficiently and safely.
Andrew H.
9.0% oxygen, 12 ppm carbon monoxide, and no smoke detected. However, I noticed that the soot level in the chimney is increasing and is now level with where the flue pipe enters the chimney. I recommend having the chimney professionally cleaned and inspected. Additionally, I suggest replacing the autofeed and pressure relief valve to ensure continued safe and efficient operation.
Larry H.
I conducted a comprehensive preventive maintenance on an oil boiler. The process included thorough brushing and vacuuming to ensure cleanliness. I replaced the oil filter, nozzle, and strainer. After starting the system, I checked all safety features. A combustion test yielded 3.4% oxygen, 30ppm CO, and 85.3% efficiency, confirming proper operation. However, the transformer initiated without a burner call, indicating a sticking internal relay. I replaced the primary control and retested the system, ensuring it operates correctly.
Larry H.
I adjusted the thermostat on the second floor to increase the temperature. I inspected the zone valve and circulator to ensure they were functioning correctly. Although the zone valve opened, there was no hot water returning. Upon further investigation, I discovered that the heating coil was air-bound. I purged the coil and zone to remove all air. After the purge, the discharge temperature was 98°F and gradually increasing, indicating that the system was returning to normal operation.
Jonathan L.
Ductwork Repair: Responded to a home with whistling noises and uneven heat. Found multiple leaks in basement ducts and loose connections in attic ducts. Sealed leaks with mastic, tightened connections, added insulation to exposed runs, and tested airflow at all vents. Noise was reduced, and heating is now evenly distributed.
Jonathan L.
Water Heater Installation: Installed a new tankless water heater to replace an inefficient tank system. Mounted the unit, connected gas and water lines, installed proper venting, and programmed temperature settings. Ran water at multiple outlets to confirm instant hot water delivery and verified the system operates efficiently under full demand.
Dyllan M.
Commercial Heating Repair: Arrived at a commercial site where the furnace was intermittently failing during peak service hours. Diagnosed a malfunctioning gas valve that caused inconsistent flame and temperature. Replaced the valve, verified proper ignition sequences, and tested heat output under full kitchen load to ensure stable and reliable heating.
Jonathan L.
Furnace Repair: Visited a home where the furnace was running but only blowing cold air. After inspecting the igniter and burners, I found the igniter had failed and the burners were partially clogged with debris. Replaced the igniter, cleaned and adjusted the burners, and ran multiple heating cycles. Verified consistent warm air throughout all rooms and confirmed safe operation of the furnace.
