Furnace and AC Repair in Oswego, IL

Your best choice for Furnace and AC Repair in Oswego, IL

Since 1992, Tempco Heating and Air Conditioning is your best choice for repair, installation, and service in homes and buildings just like yours in the Chicagoland. We take special pride in the craftsmen we train and employ--a fact you'll see in their reviews below. Its also noticeable immediately in the attitude and integrity our technicians bring to your job site. Our entire company works hard to make your experience with us hassle-free and enjoyable. You can also be assured that Tempco stands behind the work we do as well as comply with all local codes. This is why, as you can see by the map and reviews below, we are rated so highly for Furnace and AC Repair in Oswego, IL. Call us today at (847) 670-7000!

Local reviews for Furnace and AC Repair in Oswego, IL.

Recent Jobs and Reviews in Oswego, IL

Rated 5.0 out of 5 stars based on 4 customer reviews

Customers say: The overall sentiment across these reviews is overwhelmingly positive, reflecting strong customer satisfaction and trust. Customers consistently express appreciation for the company's reliability, professionalism, and honest business practices. A dominant theme is the emphasis on trustworthiness and integrity, with reviewers highlighting how the company prioritizes customer interests over unnecessary upselling or overcharging. Long-term loyalty is evident, with customers expressing confidence built over many years of service. The technicians are frequently praised for being knowledgeable, personable, and punctual, creating a sense of dependability that customers clearly value. Communication and ease of scheduling are noted as strengths, contributing to a smooth and stress-free service experience. The tone throughout is one of genuine appreciation and recommendation, with customers expressing gratitude for the quality workmanship, efficiency, and courteous interactions. Overall, the reviews convey a strong sense of satisfaction with both the technical expertise provided and the customer-focused approach that fosters lasting relationships.

Oswego, IL at a glance

Tempco Heating and Air Conditioning has completed 45 jobs in Oswego, IL between March 2025 and August 2026.

The 4 customer reviews shown here average 5.0 out of 5.

The most recent job was on August 24, 2026.

Tempco Heating and Air Conditioning has completed 27 jobs in Oswego, IL in the last 12 months. The first job there was in April 2017.

Reviews

Great Service
Mark was in and out in the matter of minutes, identifying and fixing our problem with our thermostat. Very professional and showed me exactly where the problem was as to why our air wasn't kicking on.
Doughentry - Oswego, IL 60543
Great service
Vivian - Oswego, IL 60543
Great service
Tech very knowledgeable
Don - Oswego, IL
Thanks!
Great experience overall.
Ryan - Oswego, IL 60543

Job Locations

Mike K.
Mike K.
Balanced system dampened down first floor and checked fan speed and adjusted to manufacture specifications customer already runs continuous fan also increased continuous fan speed system is providing better air flow to second floor
Oswego, IL 60543
Mike K.
Mike K.
Balanced system, increased fan speed to manufacture recommendations, increased continuous fan speed to 5, dampered down first floor and verified second floor dampers were open, used thumb gum to seal holes on furnace, advised customer to run fan to on to help with uneven temperatures, system is working properly at this time
Oswego, IL 60543
Mike K.
Mike K.
Customer stated condenser is noisy started up air conditioner and some rattling noise was present, secured all screws and tightened motor and noise is no longer present customer was with me and agreed noises are not heard and happy.
Oswego, IL 60543
Mike K.
Mike K.
Balanced system, checked and verified proper fan speed, dampered down first floor and verified second floor dampers were open, set continuous fan to 5 to help with uneven temperature, suggested running fan, also found erv off, restored power and tested and is running properly at this time
Oswego, IL 60543
Mike K.
Mike K.
Customer stated condenser is noisy while running, cycled system and condenser fan was rattling, tightened and secured screws and noise went away, customer was there and agreed no noise and system is working properly at this time
Oswego, IL 60543
Jeff M.
Jeff M.
Balanced system, fan speed was set at 9 manufacture recommended 14 also set continuous fan higher and recommended running fan all the time to help with uneven temperatures, dampered down first floor and verified second floor vents are fully open, also replaced customer supplied air filter current one was dirty, system is working properly at this time
Oswego, IL 60543
Jeff M.
Jeff M.
Balanced system, adjusted fan speed to 16 from 15 per manufacturer and set continues fan to 6 dampered down first floor and verified second floor dampers are fully open, inspected broken damper and found screwdriver slot on damper was broken and unable to adjust damper for run that feeds part of second floor was able to adjust damper but need to order replacement, system is operating properly at this time
Oswego, IL 60543
Jeff M.
Jeff M.
Balanced system, checked and verified proper fan speed and set continuous fan speed higher, dampered down first floor and verified second floor was fully open, showed homeowner how to adjust, cycled and tested, airflow improved to bedroom above garage, homeowner was happy and stated it's never blown that good, also recommended running fan continuously to help with uneven temperatures, system is working properly at this time
Oswego, IL 60543
Jeff M.
Jeff M.
Warranty - Arrived on site and checked in with customer to see what was making noise, customer stated that the condenser was noisy from fan, started ac and fan was vibrating metal, tightened screws down and adjusted fan to stop noise and system is operating normally with no noise, customer also stated that when the heat runs they hear a ticking noise in master bedroom, ran heat and tried to recreate noise and could not hear anything, customer stated that would like us to come back when the temperature changes and the heat is on she stated she will let her builder rep know system is working properly at this time
Oswego, IL 60543
Mike K.
Mike K.
customer stated that the Erv stopped working last week, customer cleaned filters and reset power but still wasn't showing lcd display, pulled out circuit board and reseated connections and cycled unit system started normal sequence of operation and is working properly at this time
Oswego, IL 60543
Mike K.
Mike K.
Warranty - upon inspection found second floor damper was completely closed, open up second floor damper 100 percent and dampered down first floor, customer said he did that but also explained that the screwdriver slot on damper is what has to be adjusted because that is the true direction of damper, after adjusting dampers the air flow to second floor was significantly higher than before and operating properly
Oswego, IL 60543
Mike K.
Mike K.
Arrived on site and checked in with customer to gain access to equipment, customer stated that thermostat is calling for cooling but not blowing cold air, upon inspection found thermostat was set to cool and indoor fan was on, checked condenser and found no plug in disconnect, customer will need to contact his home representative for electrical company to replace
Oswego, IL 60543
Mike K.
Mike K.
Arrived on site and checked in with customer to gain access to equipment customer stated that it wasn't cooling but upon arrival thermostat was set to 70 and reading 70 but humidity was high lowered fan speed to help dehumidify checked pressures and temperature all normal system is cooling properly at this time
Oswego, IL 60543
Mark J.
Mark J.
Carrier AC service
Oswego, IL 60543
Mark J.
Mark J.
Cleaned and checked operation of Carrier air conditioner everything checks OK
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace service -Cleaned furnace showed homeowner how to clean screen on erv on outside set blower speed on furnace for ac and heating
Oswego, IL 60543
Mark J.
Mark J.
ERV service
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace service
Oswego, IL 60543
Mark J.
Mark J.
Balance ductwork system
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace - balance system
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace service - balance system
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace - Balance system
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace - Adjusted return in master also removed brace from run in basement to get rid of ticking
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace balance system
Oswego, IL 60543
Mark J.
Mark J.
Balanced HVAC system - Adjusted blower speed.
Oswego, IL 60543
Mark J.
Mark J.
Fall maintenance of Carrier furnace
Oswego, IL 60543
Mark J.
Mark J.
Fall maintenance of furnace
Oswego, IL 60543
Mark J.
Mark J.
Service
Oswego, IL 60543
Mark J.
Mark J.
AC maintenance
Oswego, IL 60543
Mark J.
Mark J.
AC maintenance
Oswego, IL 60543
Mark J.
Mark J.
AC maintenance
Oswego, IL 60543
Mark J.
Mark J.
AC maintenance
Oswego, IL 60543
Mark J.
Mark J.
AC maintenance
Oswego, IL 60543
Mark J.
Mark J.
AC maintenance
Oswego, IL 60543
Mark J.
Mark J.
ERV duct
Oswego, IL 60543
Mark J.
Mark J.
ERV service
Oswego, IL 60543
Mark J.
Mark J.
Microwave duct
Oswego, IL 60543
Mark J.
Mark J.
Furnace service
Oswego, IL 60543
Mark J.
Mark J.
Furnace service
Oswego, IL 60543
Mark J.
Mark J.
Ductwork damper
Oswego, IL 60543
Mark J.
Mark J.
Microwave venting
Oswego, IL 60543
Mark J.
Mark J.
Replace duct dampers
Oswego, IL 60543
Mark J.
Mark J.
Balance Heat
Oswego, IL 60543
Mark J.
Mark J.
Furnace Service
Oswego, IL 60543
Mark J.
Mark J.
Furnace service
Oswego, IL 60543