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
Service call
Karen - Wallingford, CT 06492
Great job
Rick - Wallingford, CT 06492
always a great job! they have my complete confidence and trust
Excellent Service
michelle - Wallingford, CT 06492
He was very thorough worker
Excellent service and personable
Janet - Wallingford, CT 06492
Excellent
Mary - Wallingford, CT 06492
Satisfied Customer.
luke - Wallingford, CT 06492
Andrew did a great Job! He seemed to have a great attention to detail, and kept me in the loop every step of the way.
Excellent and timely service!
Susan - Wallingford, CT 06492
Andrew is so helpful and takes the time to explain everything to me. He addresses my concerns and leaves everything so neat and running smoothly.
Excellent service
Brian - Wallingford, CT 06492
Larry has been out to our home on other occasions and is always courteous and respectful. He is knowledgeable and explains things in a manner that could be understood. The service he provides is excellent.
Excellent customer service
Sue - Wallingford, CT 06492
Larry came and fixed our central air on one of the hottest days of the year. He squeezed us in, now that is great customer service!!!
Professional Service
joe - Wallingford, CT 06492
Very professional, and detail oriented.
Excellent Service!!
Mark - Wallingford, CT 06492
Same day service! Explained the problem and fixed it in less than 30 minutes
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

Andrew H.
Opened boiler door and removed old combustion chamber. Cleaned and vacuumed soot and any debris from the old chamber. Installed new combustion chamber and gaskets. Close burner door and start the boiler. Ran the boiler for 20 minutes continuously to let the new chamber and gaskets cure. Performed combustion and smoke tests. 8.2%o2 7ppm co 0 smoke Burner motor may need to be replaced in the future.

Larry H.
Recovered the refrigerant back into the condenser. Removed and and installed a new warranty Evaporator Coil at the furnace. Pressure tested and evacuated the system. Opened the valves and released the refrigerant back into the system. Started and tested. Adjusted the charge to 13* subcooling. System is operating properly.

Larry H.
Performed a heating pm on an oil boiler. Brushed and vacuumed. Replaced the oil filter, nozzle and strainer. Started and checked the safeties. Performed a combustion test. 4.9% o2, 41 ppm, 86.3% efficient System is operating properly. Performed an A/C pm. Blew out the drain, checked the air filter, customer replaced it. Checked and tested the condensate pump. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. 11* subcooling , 54* supply, 70* return System is operating properly.

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 When performing the maintenance on the second floor system we found the unit was slightly low on refrigerant. After getting customer authorization we added 1 lb 410A to the upstairs unit While performing the maintenance for the main floor unit we found the capacitor was open internally and had gone bad. After getting customer authorization we replaced the 35/5 capacitor. Started the unit and found it was low on refrigerant. After getting customer authorization we adde 4.5 lb R410a to the downstairs unit. Also added UV dye to both systems. Units are working properly. Need to call and schedule leak search

Andrew H.
Recovered the refrigerant from the old system. Removed old air handler, condenser, line set, thermostat wire and electrical whip. Installed a Trane XR14, 2 1/2 ton condenser and a Trane TEM6 variable speed air handler in the attic. Installed new condenser pad, line set, thermostat wire, and electrical whip. Brazed in all new refrigerant connections. Pressure tested and evacuated the system. Started the system and added addition refrigerant as needed. Had 79* return air and 61* supply air.

Andrew H.
Upon arrival unit was off on reset. Went to check for oil flow when we found the firomatic handle’s lead ring had failed and dropped causing the oil shut off valve to close. Removed the old firomatic handle and replaced it with a new one. Checked for oil flow and had good and clean flow. Checked the nozzle and had no dripping in the blast tube. Checked the past run history from the primary control and found the system was running great until the handle failed. Started and tested the system. Unit was running at 4.7%o2 3pp co 0 smoke with 160 ohms. Unit is working great.

Larry H.
Customer turned the thermostat on, the blower turned on but the condenser did not. Checked for power. Found a wire going to the contactor that was burnt and broken. Repaired the wire. Started and tested.

Larry H.
The oil tank is leaking on the bottom approximately 1 drop every 3-5 seconds. Installed a magnetic tank patch on the spot that is leaking. Currently the dripping has stopped. The is a metal tin under the tank. Sprinkled odor kill under the tank to help with the smell. The oil tank needs to be replaced.

Larry H.
The insulation on the furnace was falling off. Taped around the line set opening and secured the insulation.

Andrew H.
Upon arrival customer stated the main room unit was the unit that was leaking water. Checked the drain pan and found it was mostly empty and did not have water pooling up. Removed the slimduct covers and found the entire horizontal section of the drain line was clogged and full of water. Disconnected the drain line and blew it out with nitrogen. Also put a rag in it and blew it through the drain line to clear out any large obstructions. Reconnected the drain line and put the slimduct covers back on. Unit is working properly. Tested on high fan and low cooling and had good temps coming out To avoid the issue in the future it is recommended that the drain line drains onto the driveway instead of going horizontally towards the condenser.

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 4.5%o2 0 ppm co 0 smoke Performed repair on fittings near the water coil on the boiler. Cut out corroded piping and installed new piping and fittings. Filled water coil back up with water and purged all air from the coil. While performing the maintenance we found a hi-vent on the boiler had been leaking in the past. After getting customer authorization we drained pressure from the system and removed the old hi-vent. Installed a new hi-vent and filled the system back up with water. Purged all zones of air and started and tested the system. Boiler pressure when leaving was 19 psi

Larry H.
Removed and installed a new Zone Damper for the master bedroom. Cycled the thermostat several times to test the operation.

Larry H.
Turned the system on , the blower turns on and condenser fan motor spins but the compressor did not start. Found the capacitor for the compressor is reading 0. The capacitor is bad. Also noticed that the contactor had burn marks on it. Replaced the contactor and capacitor. Started the system and checked the pressures. System is operating properly.

Larry H.
Performed an A/C pm. Blew out the drain line, checked the air filter, customer replaces. Checked and tested the condensate pump. Washed the condenser. Checked the electrical connections, checked the pressures and temps. Cleaned out a mouse nest from the electrical compartment. System is operating properly. The condenser is under the deck, when the system needs to be replaced, recommend moving it out from under the deck due to the hot air is getting sucked back into the unit and making it work a little harder.

Andrew H.
Recovered the refrigerant back into the condenser. Removed and replaced the Evaporator Coil inside of the Air Handler. Pressure tested and evacuated the system. Opened the valves and released the charge back into the system. While working at the condenser, noticed the contactor was pitted. After approval, replaced the contactor. Started the system, and added 4oz R410a to bring the subcooling to 15*. Discharge temp was 56*. System is operating properly.

Andrew H.
Upon arrival we found an additional hi-vent had started leaking. After getting customer authorization we added the replacement of another hi-vent to the job. Drained pressure from the system. Removed 2 old hi-vent and the autofeed/backflow combo. Installed 2 new hi-vents and the autofeed/backflow combo. Filled system back up with water and purged all zones of air. Started and tested all zones and had hot water coming back on all. Boiler pressure when leaving was 19 psi. Unit is working properly.

Larry H.
Customer turned the thermostat up for the boiler to turn on. When the burner turned on, it started to sputter. Checked the nozzle assembly, the nozzle had a small piece of carbon on the tip and the top was glazed. Replaced the nozzle and started. Performed a combustion test, 4.7%o2, 32 ppm, 85.0% efficient, 0 smoke. System is operating properly.

Larry H.
Performed an A/C pm. Blew out the drain line, replaced customers air filters. Checked and tested the condensate pump. Rinsed the condenser. Checked the electrical connections, checked the pressures and temps. Subcooling was at 1.8*, the unit calls for 13*. The system is low on refrigerant. Added 13 oz R410a to the system to bring the subcooling to 13.8*. System is operating properly.

Larry H.
Replaced the armaflex insulation on the suction line outside. Started and checked the refrigerant charge. The system is low on refrigerant, there is a 33* superheat and 13* difference between supply and return. When the system was serviced, refrigerant was added and the superheat was 12* with a 22* difference between supply and return. Customer is holding off on adding due to replacing the system.

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 4.0%o2 12ppm co 0 smoke

Larry H.
Removed and replaced the Aquastat on the boiler. Started and tested. Turned the basement zone on, the circulator turned on and when the water dropped below 160* the burner turned on and shut off prior to 180* for economy mode. Performed a combustion test, 5.6% o2, 24ppm, 86.7% efficient. Swiss 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 Checked refrigerant levels Checked capacitor Took temps While performing the maintenance we found the system was low on refrigerant. Subcooling is supposed to be 10 and it was at 2.4. After getting customer authorization we added 3 lbs R410A to the system bringing the subcooling up to 13.5. Customer stated another company had put Uv dye into the system in the past. Checked condenser fittings, lineset and evap coil for traces of dye. Found small amount of Uv dye on the evap coil. Showed customer the dye on the coil.

Andrew H.
Upon arrival turned thermostat to fan on and a/c on but neither unit turned on. Opened up the condenser and found a snake had been electrocuted on the capacitor. Removed the snake and tested the capacitor. Capacitor was good still. Did not have 24volts from the indoor unit. Checked the transformer and found it had high voltage going in but nothing coming out. After getting customer authorization we replaced the transformer and added fuses on both legs to prevent any possible shorts in the future. Turned system to fan on only and unit turned on. Turned thermostat to cool and outdoor unit turned on as well. Checked refrigerant levels. System is working properly.

Larry H.
When arrived, the condenser was not making a loud noise, the condenser fan made a slight rattle sound. Did not hear any noise downstairs. Checked the pressures and temps. The capacitor is reading correct ohms. 35/4.9mfd. The high side was at 321psi. Washed the coil. The refrigerant charge is correct and cooling properly.

Larry H.
Remove and replace the 1st fl zone damper. Started and tested. System operates properly.