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
Our Reviews by City
Prompt tesponse
Nick - Wallingford, CT 06492
Great service. Fast response always calls back quickly
Excellent Service!
Lagase - Wallingford, CT 06492
The technician was amazing. Very thorough and easy to understand when he was explaining what needed to be done e.
Great job thanks
Denis - Wallingford, CT 06492
Very nice young man professional and knowledgeable.
The Best
Larry - Wallingford, CT 06492
Thorough and answered all my questions. I Always use Xtreme
Superior service
Ron - Wallingford, CT 06492
Super service, we highly recommend Extreme , they have great knowledgeable staff , super service and great prices.
Excellent service
Mark - Wallingford, CT 06492
Showed up the next day and on time.
excellent service
Sharon - Wallingford, CT 06492
everything from start to finish was excellent service
Excellent service
Jeff - Wallingford, CT 06492
Larry is an X-Treme pleasure to work with. I wouldn’t have anyone other than him and his team doing my HVAC work.
Very good service
Joseph V Soli - Wallingford, CT 06492
Good service got to job a head of time Explain the work to be done inform me of all issues
Excellent service!
Doll - Wallingford, CT 06492
Professional, friendly, responsive and all around good people. We first hired them to replace our central air conditioning five and a half years ago. Since they we have been extremely happy with their service. It very much feels like we have ‘family in the business’.
Excellent Service! On time and explained everything
Mark - Wallingford, CT 06492
Excellent Service
Robert - Wallingford, CT 06492
Great service
Lisa - Wallingford, CT 06492
Andrew is always very friendly and shares any concerns and suggestions. It is a pleasure having him taking care of my air conditioning maintenance as well as my heating.
Excellent service
riima - Wallingford, CT 06492
The company's communication was excellent. The technician arrived on time, was very knowledgeable, and did a great job. I'm very satisfied with the service and highly recommend them.
Great service
barbara - Wallingford, CT 06492
Great Service
Pete - Wallingford, CT 06492
Being new to the area we didn’t know who to contact. Once we found Xtreme Temp we were happy with the timeliness in scheduling. Larry was a great resource to understand potential issues and remedies to take to avoid further issues. He was very knowledgeable and able to explain how our system worked. Great experience. Thanks Larry
very good
Frank - Wallingford, CT 06492
Excellent
Donna - Wallingford, CT 06492
Great service
peter - Wallingford, CT 06492
Andrew was on time, excellent service , great on clean up and any questions I had were addressed.
Excellent Sevice
Brian - Wallingford, CT 06492
Excellent service
Mersades - Wallingford, CT 06492
Excellent
Brian - Wallingford, CT 06492
Tech was very informative and forthright with my system issues Definitely would recommend
Excellent service!!
George - Wallingford, CT 06492
Woke up, 0 degrees and no heat. Service was prompt and I was up and running in no time. Great company to deal with
Excellent service as usual
Charlee - Wallingford, CT 06492
Andrew is the tech we’ve had the pleasure of dealing with in the short time we’ve used this company for maintenance on our AC and water heater. He’s always a pleasure and thoroughly explains what’s wrong or what things he did while here.
Great service
Donald - Wallingford, CT 06492
You have great great talented people who do a great service
Larry H.
Performed an A/C pm. Blew out the drain line, checked the air filter Checked and tested the condensate pump. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. System is operating properly.
Andrew H.
Performed 2 ac pms Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps While performing the maintenance for the in-law unit we found the air filter was very dirty and was starting to get sucked into the coil. We found very high buildup of hair and dust on the evap coil. After getting customer authorization we performed a chemical clean on the evap coil. Also found a wire connection for the capacitor had been chewed up by mice and was charred. Replaced the terminal and removed all damaged wire.
Larry H.
Performed an A/C pm. Blew out the drain line, customer replaced the air filter. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. System is operating properly.
Andrew H.
Performed ac pm on ductless system and performed 4 indoor ductless coil and blower cleanings. Removed plastic casing on all indoor ductless units. Used evap coil cleaner on the blower wheels and evap coils. Took all cases and washed them with water to remove any dust buildup. Put all cases back on the indoor units. Washed condenser coil Checked all electrical connections and safeties Blew out drain lines and poured water to ensure proper draining Tested all heads in high heat and cool Checked volts and amps Visually inspected evap coils, blower compartments and filters. Washed all filters with water. All heads were putting out 117-123 degree air in high heat mode and were putting out 45-50 degree air in high cool mode. Units are operating properly
Larry H.
Performed an A/C pm. Blew out the drain line, checked the air filters, customer replaced. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. System is operating properly.
Andrew H.
Upon arrival unit was off with fan turned on. Checked the air filter and found it was plugged. Replaced the air filter. Checked the evap coil and found very high dust and debris buildup on the coil. After getting customer authorization we performed a heavy chemical clean on the evap coil. Turned the unit on and checked the refrigerant levels. Found the system was very low on refrigerant. Pressures were 34/160. Customer is holding off on any repairs at this time. May possibly recover remaining refrigerant and replace it with m099
Larry H.
Cleaned return and supply ducts in a home experiencing dusty vents. Removed visible buildup and sanitized ductwork. Airflow has improved significantly. Suggested regular filter changes and cleaning every 3–5 years.
Jonathan L.
Responded to a no-cool call. Found a failed contactor and signs of burnt wiring on the control board. Replaced contactor and spliced in fresh wire, checked voltage and refrigerant. System is now cooling, but due to age, we recommended considering replacement within the next year. For now, the system is functioning safely and efficiently.
Dyllan M.
Performed a spring AC tune-up. Cleaned condenser coil, tightened electrical terminals, flushed the drain line, and checked refrigerant levels. Everything is running efficiently, but blower capacitor is weakening and should be monitored at next visit.
Jonathan L.
Replaced a failed 40-gallon electric water heater that had stopped producing hot water. Installed a new energy-efficient model with expansion tank and code-compliant shutoff. Checked heating elements and tested pressure. Customer now has reliable hot water again and appreciated the fast service.
Andrew H.
Fixed a faulty dual capacitor that was preventing the compressor and fan from starting. Quick replacement brought the unit back to life. Verified refrigerant charge and system function.
Larry H.
Customer turned the system on. The compressor and fan turned on then off, it cycled several times. Checked the electrical components, the capacitor was reading 0 on both sides. Replaced the capacitor and wire going to the contactor. Started and checked amps. Checked the pressures, 60/195 psi, 12.8* subcooling system is operating properly.
Larry H.
Customer turned the system on and blower and condenser turned on. Checked the zone dampers, both opened. Checked the pressures, the low side was at 13.6 psi, hi side 112 psi. There is a leak in the system. The low side is normally running 60-75 psi. It would take roughly 3-4 lb of R22 to bring it to the proper level. The company is only allowed to add 2 lb of refrigerant in due to the refrigerant being discontinued. By adding only 2 lb, the coil can freeze or cause other issues. Recommend replacing the system.
Larry H.
Performed a heating pm on an oil furnace. Brushed and vacuumed. Replaced the oil filter, nozzle and strainer. Replaced the air filter- customer supplied. Started and checked the safeties. Performed a combustion test. 4.4%o2, 26 ppm, 82.8% efficient. System is operating properly. Performed an A/C pm. Blew out the drain line, Checked and tested the condensate pump. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. Added 7 oz R410 to the system. System is operating properly.
Andrew H.
Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps While performing the maintenance on the right unit we found d the unit was low on refrigerant. After getting customer authorization we added 2 lbs 10 oz R410A to the system bringing the subcooling from .5 up to 12. Had a 12* difference before adding t the refrigerant and 18* difference after. Unit is working properly. Recommend reassessing the unit next year. Duct diagnostic 203 734 1532
Larry H.
Performed an A/C pm. Blew out the drain line, replaced the air filter 16x25x1 Checked and tested the condensate pump. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. Added 7 oz R410 to the system. System is operating properly.
Andrew H.
Upon arrival all units were off. Went to test all heads on cooling mode with fan on high and found the 2 units on the addition were in heating mode while the master bed unit was in cooling mode. With the heads on different operation modes the condenser will alternate between the two modes and can cause issues with satisfying the set points or can cause a communication error. Turned all to cooling and had 40-45 degree air blowing out. Set all units to heating and had between 116-121 degree air blowing out. Units are operating properly. Would recommend performing a blower wheel cleaning on the master bedroom unit due to high dust and debris buildup.
Andrew H.
Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps While performing the maintenance we found the condenser would not stay running. Checked refrigerant levels and found the system was low on refrigerant. After getting customer authorization we added 1.5 lbs R410A and UV dye to the system. Also found the schrader valve on the suction line was leaking. Replaced the schrader with a new one. Looked over all refrigerant connections with a UV light to look for any traces of dye. Did not find any dye. We found all refrigerant line connections were made with silver solder. Manufacturers state in their installation manual to use braze on connections since silver solder cannot withstand the higher pressures of R410A. It is
Andrew H.
Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps While performing the maintenance we found the compressor amps were starting to get close to reaching the maximum allowed amps. May need to replace the unit in the near future.
Andrew H.
Performed 2 a/c pms Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps While performing both maintenances we noticed both evap coils had high dust and debris buildup. After getting customer authorization we chemically cleaned both evap coils. Also found the basement unit had a clog in the drain line and had been leaking water into the metal pan and onto the floor. Blew out the drain line and tested it with some water. Unit is working properly
Andrew H.
Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps
Andrew H.
Upon arrival unit was off. Turned unit on and both inside and outdoor units turned on. Shut power to both and went to the condenser. We found multiple spots where the low voltage wires had been chewed up and were bare. Cut out and removed all damaged wire and replaced it with new wire. Checked the capacitor and it was good. After getting customer authorization we chemically cleaned the condenser coil due to high dirt and debris buildup. Removed the fan and condenser top and cleaned the condenser from the inside out. Started and tested the system. Found the system was slightly low on refrigerant. After getting customer authorization we added 3 oz R22 to the system. Unit is working properly.
Andrew H.
Upon arrival unit was off. Turned unit on and air handler started but condenser did not. Checked refrigerant levels and found the system was almost completely empty. Standing pressure was 16 psi. Need to return to fill system up with nitrogen and preform a leak search.
Andrew H.
Drained old gas water heater. Disconnected gas piping, flue pipe, and water piping. Removed old water heater and installed a new Rheem 40 gallon gas water heater. Reconnected water lines, flue pipe, and gas line. Filled water heater and started and tested.
Andrew H.
Performed 3 a/c pms. Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter Rinsed condenser coil Blew out drain line and poured water to ensure properly draining Tested condensate pump Checked refrigerant levels Checked capacitor Took temps While performing the maintenance on the in-law unit we found the system was lower on refrigerant than last year but was still in the manufacturer’s specifications. Recommend evaluating the system next year.
