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.
I thoroughly cleaned the condenser coil to ensure optimal heat transfer. All electrical connections and safety features were meticulously checked for integrity. Drain lines were cleared of debris, and water flow was tested to confirm proper drainage. Each cooling head was tested in high cool mode, producing air temperatures between 39-41 degrees. Voltage and amperage were verified to ensure electrical efficiency. The evaporator coils, blower compartments, and filters were inspected visually and cleaned. Filters were washed with water to remove any accumulated dirt. The unit is now operating efficiently.
Larry H.
Upon inspection, the zone valve for the main part of the house was found to be open, even with the thermostat removed. The power head was disconnected, but the valve remained open, indicating a faulty power head. After replacing the power head, the valve opened when the thermostat was turned on but failed to close when turned off, suggesting a short circuit. Despite the thermostat being disconnected, 24 volts were present at the valve terminals. Tracing the wires, a section was replaced, but the issue persisted. Further troubleshooting is required, and the power head will need to be replaced again.
Larry H.
I conducted a comprehensive preventive maintenance service on the air conditioning system. I began by blowing out the drain line to ensure proper drainage and replaced the air filters to enhance air quality. I then checked and tested the condensate pump, ensuring it was functioning correctly. The condenser was rinsed to remove any accumulated debris. I meticulously checked the electrical connections, pressures, and temperatures to confirm the system's integrity. Although the system was operating properly, I noticed the capacitor inside the condenser was below the manufacturer's specified limits. The capacitor, rated for 40/5 mfd +/-6%, was reading 32 on the compressor side. I recommended and subsequently replaced the capacitor, followed by starting and testing the system to ensure it was operating correctly.
Andrew H.
I replaced the heat exchanger on RTU#4, ensuring it was properly installed and started. I burned off any oils, conducted a combustion test, and adjusted the gas pressure. For RTU#3, I removed and replaced the 1st stage condenser fan motor, followed by starting and testing it. On RTU#1, I replaced the #2 condenser fan motor and all six capacitors for the fan motors, then started and tested the system. All units are now operating correctly.
Andrew H.
Upon arrival, I tested the condenser in both heating and cooling modes. In heating mode, the initial amp draw was 65 amps, dropping after a few seconds. In cooling mode, it was 50 amps and dropped immediately. The compressor drew 17-18 amps in heating mode, close to its maximum of 19.7 amps, while it drew 10 amps in cooling mode. High pressure in heating mode reached 520, nearing the cutoff at 550, while cooling mode maintained normal pressure at 250. A restriction in the condenser metering device was causing the high pressure spike, stressing the compressor. I recommended using emergency heat to prevent further damage.
Larry H.
I conducted a comprehensive preventive maintenance check on an oil boiler. The process began with thorough brushing and vacuuming to remove any debris. I replaced the oil filter, nozzle, and strainer to ensure optimal performance. After starting the boiler, I verified all safety mechanisms were functioning correctly. A combustion test was performed, yielding results of 8.7% oxygen, 22 ppm, and 82.3% efficiency, indicating the system is operating properly. However, due to the oil line being embedded in the concrete floor, I recommend replacing it to prevent potential future issues.
Andrew H.
I began by shutting off the water supply to the existing water heater and carefully drained it. Next, I disconnected the gas pipe, water pipes, and flue pipe, ensuring all connections were secure and safe. The old water heater was then removed, and a new one was installed in its place. I installed a new flue pipe and water piping, making necessary modifications to ensure a proper fit and function. After reconnecting the gas piping, I refilled the water heater with water. Finally, I started the water heater and conducted thorough testing to confirm it was operating correctly and efficiently.
Larry H.
I conducted a comprehensive preventive maintenance service on the air conditioning system. This included blowing out the drain line to ensure proper drainage and replacing the air filters to enhance air quality. I also rinsed the condenser to remove any accumulated debris. Electrical connections were thoroughly checked for integrity, and system pressures and temperatures were measured to confirm optimal performance. The system is now operating efficiently and effectively.
Larry H.
5.4% oxygen, 32 ppm CO, no smoke, and 85.0% efficiency. The system is now operating efficiently and safely.
Andrew H.
I began by carefully removing the existing insulation from the return plenum, ensuring no debris was left behind. I then inspected the plenum and the secondary drain pan for any moisture, confirming they were completely dry. After this, I installed new insulation, securing it with adhesive spray and silver foil tape to ensure a tight fit. I then started the system and conducted thorough tests to verify that everything was functioning correctly, confirming the system's proper operation.
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.
