Heating & Cooling Services in Chicago, IL

Responded to callback for recurring cooling issue following previous service visit. Upon arrival, verified thermostat displaying 73°F with customer reporting inadequate cooling and indoor temperature of 76°F. Inspected HVAC control board and wiring connections within air handler, checking all low-voltage control wiring, power connections, and relay operations for proper function. Documented system conditions with photos of thermostat operation and control board assembly to verify system status and troubleshoot recurring temperature control concerns.

Responded to warranty callback for second floor cooling issue. Performed diagnostic temperature measurements at air handler unit, recording supply air temperature of 46.3°F and return air temperature of 73.9°F, confirming system is producing adequate temperature differential and operating within normal parameters.

Performed diagnostic evaluation on aging residential air conditioning system approximately 40 years old. Conducted visual inspection of outdoor condenser unit mounted on exterior building wall and assessed interior components. Due to advanced age of equipment, provided comprehensive repair estimate to homeowner for necessary service work.

Responded to warranty call for HVAC unit installed in January 2026 reporting active leak causing interior damage. Upon arrival, documented extensive ceiling and wall damage in bedroom area with collapsed drywall, exposed structural joists, and visible water staining on adjacent ceiling surfaces. Photographed all affected areas including compromised ceiling structure, water intrusion patterns, and resulting drywall deterioration to assess leak source and determine if damage is related to recent installation.

Conducted site assessment for new mini-split installation at residential property. Evaluated existing electrical panel with 1200A main service and available circuit capacity, photographed outdoor HVAC equipment location beneath raised deck with adequate clearance and gravel base, and documented installation requirements for Quilt partner coordination.

# HVAC Maintenance - Comfort Plan Clean and Check 1 System Performed comprehensive preventive maintenance on rooftop-mounted air conditioning system per comfort plan agreement. Accessed unit by removing service panels to inspect internal components including compressor, capacitors, refrigerant lines, and electrical connections. Utilized manifold gauges to verify refrigerant pressures and system performance. Measured and recorded temperature readings, documenting 58.4°F at specified test point using digital thermometer to confirm proper cooling operation. All components inspected and found operating within normal parameters. System left in proper working condition with panels secured.

Responded to service call for reported humidifier leak. Upon arrival, performed visual inspection of humidifier unit and surrounding components to identify source of water leak. Assessed humidifier installation, water supply line connections, and drainage system for signs of active leaking or moisture damage. Documented existing HVAC equipment information and captured photos of work area including air filtration system and tools used during diagnostic evaluation.

Responded to callback for active water leak initially reported by plumbing contractor. Previous technician was unable to duplicate the issue during initial visit. Upon arrival, performed thorough inspection of Carrier furnace system, evaporator coil, condensate drainage components, and surrounding ductwork in utility closet. Examined all condensate lines, drain pan, and PVC drainage piping for signs of active leakage or blockage. Inspected ductwork insulation for condensation issues, particularly given current humidity levels at 48% as displayed on ecobee thermostat. Documented system conditions and equipment with photographs for reference. Advised homeowner that leak source remains intermittent and most likely occurs during periods of elevated humidity when air conditioning system operates under load, causing either condensate overflow from evaporator coil or condensation formation on uninsulated ductwork sections. Recommended continued monitoring during high humidity conditions to id

Performed water heater replacement estimate for a 75-gallon residential unit approximately 14 years old producing only lukewarm water. Inspected existing water heater installation, documented current piping configuration including copper supply lines with brass fittings and associated plumbing connections, and measured equipment dimensions for replacement planning.

Completed full HVAC system replacement including removal and disposal of existing forced air furnace and air conditioning system. Installed new Lennox SL280UH070V36AK 80% two-stage variable speed forced air furnace (70,000 BTU) with connections to existing supply and return ductwork, gas line, electrical circuit, and exhaust system. Reclaimed refrigerant from old AC system and installed new Lennox EL18KCV-024-230 2-ton 18 SEER2 variable speed air conditioning condenser on leveled pad with pea gravel, along with new evaporator coil. Connected new AC system to existing copper refrigerant lines, performed vacuum procedure to remove moisture and air, and charged system with R410A refrigerant. Installed Ecobee smart thermostat for system control. Conducted complete startup, testing, adjustment, and safety inspection of all equipment to verify proper operation. System includes 12-year parts warranty and 12-year extended labor agreement. Follow-up attic inspection scheduled to address airflow

Installed E100 whole-home dehumidifier in basement mechanical room, replacing existing shelving. Ran 10" ductwork with two supply registers—one through wall near laundry room and one by treadmill area—to distribute conditioned air throughout basement and upper levels. Unit features automatic humidity control with programmable settings down to 45% RH, hourly air sampling capability, and independent operation. Installation includes proper leveling, electrical connection to control panel, and metallic flex duct with reflective insulation. System provides dual benefit of dehumidification and passive heating from heat of compression, improving overall comfort in conditioned spaces.

Responded to no cooling complaint on 15+ year old Trane air handler system. Upon arrival, confirmed unit was running but not producing cold air. Performed diagnostic evaluation of the system including temperature differential measurements at supply ductwork, which registered 73.8°F indicating insufficient cooling. Inspected air handler unit located in utility closet and assessed overall system condition. Identified failed cooling component preventing proper refrigeration cycle operation. Discussed repair options and replacement recommendations given age of equipment, as systems over 15 years typically experience declining efficiency and increased failure rates of major components.

Replaced failed blower motor assembly in HVAC system. Removed old motor unit from housing, disconnected electrical connections, and installed new motor with proper mounting brackets. Verified all wire connections and tested system operation to ensure proper airflow and functionality.

Performed comprehensive Comfort Plan clean and check maintenance on single HVAC system per scheduled early morning appointment. Completed full system diagnostics using digital multimeter to verify electrical performance and replaced standard 14x21x19 E-Z Flow air filter. All system components inspected and operating within normal parameters.

Performed comprehensive HVAC system evaluation for replacement estimate on residential property with existing 2015 furnace and 3-4 year old air conditioning system. Customer reported weak airflow throughout home despite recently replacing filter and maintaining clean evaporator coil. Conducted thorough inspection of outdoor condensing unit positioned on concrete pad adjacent to building exterior, noting cylindrical configuration with protective fan grille and standard vertical fin arrangement. Examined indoor furnace and air handler installation located in basement utility area, documenting existing ductwork configuration with galvanized metal supply plenum and associated copper refrigerant lines with insulation. Assessed overall system performance and identified need for ductwork evaluation and potential modifications to address inadequate airflow concerns. Documented equipment specifications, installation conditions, and mechanical room layout with reflective insulation barriers. Pro

Completed comprehensive clean and check maintenance on single HVAC system under comfort plan agreement. Performed standard maintenance procedures including inspection of air handler control board, verified proper operation of all electronic components and connections, and confirmed thermostat functionality with dual-zone system displaying proper temperature readings at 77 degrees. Investigated reported whistling noise in bedroom area during system operation to identify potential airflow or ductwork issues requiring attention.

Performed warranty follow-up on multi-unit rooftop HVAC installation. Temporarily rewired thermostat control wiring by connecting R wire from wireless transmitter to Y terminal and Y to R at condenser to restore system operation pending replacement of defective wireless transmitter. Identified and documented multiple installation deficiencies requiring correction: damaged 1/2" conduit compression coupling concealed under equipment pad needs replacement, 1/2" conduit requires rerouting to prevent roof membrane contact, electrical disconnect box improperly secured with single screw instead of full mounting hardware, and 3/4" conduit serving first floor unit requires rework to eliminate roof contact. Verified all three rooftop units require programming adjustment to comfort mode per manufacturer specifications. Return visit scheduled to install new wireless transmitter, restore proper thermostat wiring configuration, replace damaged conduit coupling, secure all conduit runs with proper cl

Responded to no cooling call and diagnosed failed wet switch with significant corrosion and debris buildup visible inside the sensor housing. Replaced defective wet switch with new component and restored system to proper operation. Verified all electrical connections at control board, tested system functionality, and confirmed unit cooling effectively upon completion.

Responded to customer concern regarding water leaking from ductwork in mechanical space. Upon inspection, identified significant condensation accumulation on insulated ductwork surface due to inadequate insulation and temperature differential. Verified WhisperHeat HVAC system operational status and confirmed unit cooling effectively with amperage reading of 14.46 amps at outdoor condensing unit. Inspected ductwork routing through attic/utility space and noted moisture present on flexible duct surfaces. Explained to customer that condensation is forming on cold supply ducts when warm, humid air contacts inadequately insulated duct surfaces. Recommended improving duct insulation and verifying proper vapor barrier installation to prevent future moisture accumulation and potential water damage to surrounding building materials.

Responded to no cooling call on recently installed system under warranty. Upon arrival, inspected control board and wiring connections within furnace cabinet. Found loose wire connection at control board terminal block that had worked free since installation. Secured all wire connections to circuit board terminals, verified proper seating of all connectors, and tested system operation. Unit powered on successfully with all control sequences functioning normally. Confirmed proper voltage at board, tested safety circuits, and verified communication between thermostat and control board. System now cooling properly with no faults detected.