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
Great service!
Shanielle - Wallingford, CT 06492
We couldn’t be more happy with the quality of work we received. The technician was extremely knowledgeable and was very honest about what he saw and gave suggestions long the way. You can tell that he genuinely cares about his job and wasn’t looking to “add more work” to charge more money. I fully trust the work done! Thank you for everything!
Great job
Donald - Wallingford, CT 06492
Great job
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
Larry H.
Performed an A/C pm. Blew out the drain line, replaced the air filters 16x25x1 Checked and tested the condensate pump. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. Added 1 lb 4 ozR410a to the system. System is operating properly.
Andrew H.
Performed heating pm on oil furnace and a/c pm Brushed and vacuumed flue pipe and heat exchanger Replaced oil filter, nozzle, and strainer Checked all electrical connections and safeties Performed combustion and smoke tests While starting and testing the furnace we saw a slight increase in the o2 level when the blower turned on indicating a crack starting to form on the heat exchanger. The o2 levels went from 5.1% up to 5.5%. Recommend replacing the furnace in the future. Visually inspected indoor evap coil and blower compartment Checked all electrical connections and safeties Checked volts and amps Visually inspected air filter and replaced it 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 a/c maintenance we saw the condensate pump pan is starting to develop a crack on the side. Recommend replacing the pump before the crack starts to s
Larry H.
Checked the 1st fl system. Found the air filter at the unit was plugged. Replaced the air filter, 18x20x1. Started and checked the pressures and temps. The system was low on refrigerant, added 1 lb R410a to the system. 13* subcooling, 51*F discharge air at the register. The system is operating properly.
Larry H.
Performed an A/C pm. Blew out the drain line, customer the air filters. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. System is operating properly.
Andrew H.
Brushed and vacuumed flue pipe and heat exchanger Replaced oil filter, nozzle, and strainer Checked all electrical connections and safeties Performed combustion and smoke tests 5.6%o2 35ppm co 0 smoke
Larry H.
Performed an A/C pm. Blew out the drain line, customer the 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.
Upon arrival unit was off. Customer stated the outdoor fan motor was not spinning. Turned unit on and the indoor blower turned on and the condenser turned on. Checked the capacitor and found one leg for the fan was starting to get weak. Also found some low voltage wires had been chewed up by a mouse and could have been sending an intermittent signal to the condenser to turn on. Repaired all damaged wires and started the unit. After the unit was running for a couple of minutes we found the fan motor was slowing down and completely came to a stop indicating the fan motor is going bad. After getting customer authorization we replaced the condenser fan motor and installed a new capacitor for only the fan. Started and tested the unit. Unit is working properly. When leaving we had 68* return air and 49* supply air.
Larry H.
Performed an A/C pm on (3) systems. (2) split systems and (1) ductless. Replaced the air filter for the first floor and the 2nd fl. Washed the filters for the ductless. Blew out the drain lines and tested the condensate pumps. Rinsed the condenser coils. Checked the electrical connections, pressures and temperatures. Ductless system- heating discharge temp-126*f, cooling discharge temp- 43*f. Installed a section of 7” flex with a register, from the 2nd floor air handler to the master bedroom.
Andrew H.
Removed old zone damper and old zone panel. Installed new zone damper, zone panel and discharge air temp sensor. Redid the wiring on the first and second floor thermostats so they can control the system individually. Tested both thermostats individually and together in the fan only, cooling, and heating modes. System is working properly.
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.
