340 Quinnipiac Street / Building 33
Wallingford, CT 06942
203-915-7222

Local Reviews

Rated 5.0 out of 5 stars based on 102 customer reviews

Great service

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Easy Peasy

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Dyllan the tech did a great job

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Perfect experience

I’m so impressed with efficiency of this business and their technician Jonathan. I also appreciate Lisa who communicated with me regarding the appointment. Everything went as planned. Having a serviced furnace and hot water heater is a great relief for preventative maintenance.

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Awesome

Great Experience

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Furnace Tune up

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Great service

We had our annual heating maintenance done today by Extreme heating. Andrew the tech was fantastic . He walked us through everything he was doing and reviewed his final review. We recommend Extreme to our family and friends. A great service at a reasonable price.

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Great, professional service

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Fantastic service & fair pricing

Started using Extreme Heating 6 years ago & they never disappoint

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Great service

Dyllan was amazing came right in got to work and fixed everything right away and was very pleasant. Thank you so much dyllan

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Great Service as usual

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Great job by Jonathan

Jonathan did an awesome job. Friendly, professional and thorough. Very knowledgeable and respectful. Great person to represent the company.

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Great service

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Great service!

Dylan was excellent-conscientious and excellent with the furnace service

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Polite and explained everything

He was efficient and timely at getting our furnace running.

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Job Locations

Dyllan  M.

Dyllan M. Job Checkin

Perform a maintenance on the gas water heater. Checked gas pressures and it is within the units requirements. Combustion test was 40 ppm. Inspected electrical connections. Cleaned off the unit. System is running properly. At one point there was a mouse nest inside the unit. No sign of damage.


Dyllan  M.

Dyllan M. Job Checkin

Performed a heating maintenance. Changed the nozzle filter and strainer. Cleaned the heat exchanger and flue pipe. Inspected electrical connections. Adjusted electrodes. Bled the oil line. Started and tested. Combustion test was 34ppm at 3.4%o2. No smoke on the smoke test. Replaced the pump flange that was leaking for the domestic water heater loop. Purged that line. Boiler psi is 22. No other leaks found. Customer is paying for the landscaping shop maintenance also.


Jonathan L.

Jonathan L. Job Checkin

Brushed and vacuumed debris from heat exchanger, flue pipe, and burner tube. Checked all electrical connections and safeties. Sanded down flame sensor for a better flame sense. Performed a combustion test on unit, unit is running at 8.4% O2, with 30ppm CO. Recommend thinking about replacing boiler before next winter season due to age and condition of components inside boiler. Please call office to setup a quote when you are ready to replace unit.


Jonathan L.

Jonathan L. Job Checkin

Brushed and vacuumed soot and debris from heat exchanger and flue pipe. Checked electrical connections and safeties. Replaced the nozzle, filter, and strainer. Performed a combustion test on unit, unit is running at 5.7%O2, 30ppm CO, with zero smoke. Homeowner is signing up for a bronze oil plan.


Larry H.

Larry H. Job Checkin

Performed a heating p.m. on a oil steam boiler. Replaced oil filter nozzle and strainer. Brushed and vacuumed the boiler. Could not open the front clean out door going into the chamber, Due to the bolt being seized and rusted, did not want to break the bolt. Also could not loosen the bolts for the burner flange plate. Cleaned out the chamber through the burner blast tube period started and performed a combustion test, 5.9% O2, 27 ppm CO, zero smoke. System is operating properly. Check safeties. Recommend having the chimney cleaned by a chimney company. There is debris in the chimney from the floor to 3 inches below the flue pipe penetration in the chimney.


Andrew H.

Andrew H. Job Checkin

Upon arrival unit was off. Turned the shut off switch on and without any call for heat the unit started up. Upon investigation found that even with t-stat wires disconnected from the primary control it was still running indicating that the relay internally was stuck closed. Tested other controls as well to ensure there were no other issues. Replaced with another primary control temporarily until we return to replace it with the proper primary control. Unit is working properly


Andrew H.

Andrew H. Job Checkin

Brushed and vacuumed flu pipe and heat exchanger Replaced oil filter, nozzle, and strainer Checked all electrical connections and safeties Preformed combustion and smoke tests 8.9%o2 25ppm co 0 smoke Sludge additive is recommended with next oil delivery


Jonathan L.

Jonathan L. Job Checkin

Brushed and vacuumed soot and debris from heat exchanger and flue pipe. Checked electrical connections and safeties. Performed a combustion test on unit, unit is running at 4.6%O2, 50ppm CO, with zero smoke. Replaced 1 -16x25x1 air filter. Has 30 dollar coupon.


Jonathan L.

Jonathan L. Job Checkin

Brushed and vacuumed soot and debris from heat exchanger and flue pipe. Replaced the nozzle, filter, and strainer. Checked electrical connections and safeties. Performed a combustionk test on unit, unit is running at 5.7% O2, 45ppm CO, with zero smoke. Noticed the oil tanks are not leveling out properly. Noticed that the filters had sludge build up, recommend adding oil treatment to help breakup the sludge, also recommend increasing the oil line size coming out of the tank to 1/2” to help with oil flow.


Andrew H.

Andrew H. Job Checkin

Brushed and vacuumed flu pipe and heat exchanger Replaced oil filter, nozzle, and strainer Checked all electrical connections and safeties Preformed combustion and smoke tests 4.4%o2 60ppm co 0 smoke


Jonathan L.

Jonathan L. Job Checkin

Brushed and vacuumed soot and debris from heat exchanger and flue pipe. Checked electrical connections and safeties. Replaced the nozzle, filter, and strainer. Performed a combustion test on unit, unit is running at 5.7% O2, 21ppm CO, with zero smoke. Has 30 dollar coupon


Andrew H.

Andrew H. Job Checkin

Brushed and vacuumed flu pipe and heat exchanger Replaced oil filter, nozzle, and strainer Checked all electrical connections and safeties Preformed combustion and smoke tests 5.5%o2 40ppm co 0 smoke Noticed sections of the boiler were weeping and had sediment on them indicating it has been going on for some time. Avoided areas of boiler with heavy sediment buildup to avoid disturbing the leak. Recommend replacing boiler in the near future. Took pictures and measurements for replacement quote


Dyllan  M.

Dyllan M. Job Checkin

Performed and oil maintenance. Changed the nozzle filter and strainer. Cleaned the heat exchanger and flue pipe. Bled the oil line. Inspected electrical. Started and tested. Combustion test was 29 ppm at 6.6%o2. No smoke on the the smoke test. The system was very clean.


Jonathan L.

Jonathan L. Job Checkin

Brushed and vacuumed soot and debris from heat exchanger and flue pipe. Checked electrical connections and safeties. Replaced the nozzle, filter, and strainer. Performed a combustion test on unit, unit is running at 7.4% O2, 41ppm CO, with zero smoke. During maintenance noticed corrosion on the inside of the heat exchanger, indicating a slow leak between the sections. Might need to replace boiler in the few years.


Dyllan  M.

Dyllan M. Job Checkin

Performed a heating maintenance. Changed the nozzle filter and strainer. Cleaned the heat exchanger and flue pipe. Inspected electrical and adjusted electrodes. Bled the oil line line. Started and tested. Combustion test was 11pm at 8.9%o2. No smoke on the smoke test.