When something goes wrong in your home, you want a company you can trust. At Deljo Heating & Cooling, we’ve been serving families in Wilmette for decades with reliable plumbing, heating, and cooling services. Whether you need Wilmette plumbing help, air conditioner repair in Wilmette, IL, or emergency furnace service, our licensed technicians respond quickly and make sure the job is done right the first time.
Plumbing Services for Wilmette Homes
Plumbing problems have a way of popping up at the worst times. From leaky pipes to clogged drains, we provide complete solutions to keep your home safe and functional. Our experienced team is ready for everything from routine jobs to urgent calls for an emergency plumber in Wilmette.
When drains stop flowing, our specialists provide thorough drain cleaning in Wilmette, IL, using advanced tools like hydro-jetting and video inspections. For bigger issues, we offer long-lasting pipe repairs, water heater services, and sump pump installations.
Here are just a few of the plumbing services we offer in Wilmette:
- Pipe repair and replacement for old or damaged lines
- Leak detection and prevention to stop water damage early
- Sump pump and ejector pump installation and service
- Water heater repair and installation, including tankless options
- Toilet, faucet, and fixture repairs or upgrades
- Whole-home water filtration systems for cleaner water
Each service is backed by our guarantee of professional workmanship. When you need a plumber in Wilmette, IL, we’re here with the right tools, the right experience, and a fast response.
For urgent situations, our team is always ready with emergency plumbing services. If your drains are clogged or backed up, explore our drain cleaning solutions designed to get everything flowing smoothly again.
Heating Services That Keep You Comfortable
A dependable heating system is essential during Wilmette winters. Our technicians specialize in furnaces and boilers, providing everything from seasonal checkups to urgent furnace repair in Wilmette, IL.
If your unit isn’t heating properly or stops working altogether, we’ll get your system running again quickly. With regular furnace service in Wilmette, IL, we help lower your energy bills and extend the life of your system.
We also provide expert boiler repair in Wilmette, IL. Whether your boiler is leaking, losing pressure, or not producing enough heat, our team can diagnose the issue and deliver a lasting repair. For more options, you can explore our full range of heating services to keep your home comfortable all winter long.
Cooling Services for Every Summer
When the temperature rises, you need reliable air conditioning. At Deljo, we provide fast air conditioner repair in Wilmette, IL, for all makes and models. From refrigerant leaks to frozen coils, we solve cooling problems quickly so you can get back to comfort.
Routine care makes a big difference, which is why our air conditioner service in Wilmette, IL, includes thorough cleaning, inspections, and adjustments that keep your system efficient all summer long. Many homeowners also choose our annual maintenance program to prevent breakdowns before they happen.
When replacement becomes the best option, we offer full air conditioning service in Wilmette, IL, including the installation of high-efficiency systems, ductless units, and smart thermostat upgrades. For more details on what we provide locally, check out our Wilmette air conditioning services.
Why Wilmette Families Choose Deljo
Choosing a company for plumbing or HVAC is about more than fixing a problem — it’s about trust. Deljo has built a reputation in Wilmette by combining technical expertise with customer-focused care.
Our customers appreciate benefits like:
- 24/7 emergency HVAC and plumbing services
- Licensed, insured technicians with decades of experience
- Modern tools like hydro-jetting, video inspections, and trenchless sewer repair
- Clear, upfront pricing and free estimates before we start
- Maintenance plans with priority scheduling and member discounts
- A reputation for honesty and dependable service across the North Shore
To make maintenance even easier, many homeowners sign up for our Gold Star Program. Members enjoy seasonal tune-ups, discounts on repairs, and priority service all year long. If you’re due for a system checkup, we also offer individual tune-up services to keep everything running efficiently.
Frequently Asked Questions
Do you provide emergency plumbing in Wilmette?
Yes, we have an on-call team available 24/7. When you need an emergency plumber in Wilmette, we can usually arrive within an hour.
How often should I schedule furnace or AC service?
We recommend a yearly tune-up for each system. This means you should schedule furnace service in Wilmette, IL, each fall and air conditioner service in Wilmette, IL, each spring.
Can you work on both furnaces and boilers?
Absolutely. We handle both furnace repair in Wilmette, IL, and boiler repair in Wilmette, IL, ensuring you’re covered no matter what type of heating system you own.
Call Wilmette’s Plumbing & HVAC Experts Today
When you need dependable help with Wilmette plumbing, heating, and cooling in Wilmette, IL, or same-day air conditioner repair in Wilmette, IL, call Deljo Heating & Cooling. From emergency plumbing repairs to long-term HVAC maintenance, we deliver the fast, professional service your home deserves.
Contact us today or schedule your appointment online. We’re here 24/7 for Wilmette homeowners.
Recent Jobs and Reviews in Wilmette, IL
Job Locations and Reviews
Completed preventative maintenance agreement service on two air conditioning systems. Performed comprehensive inspection of attic-mounted HVAC unit, verifying proper operation of all components, connections, and ductwork integrity. Documented system temperature readings at 57.38°F and confirmed reflective insulation and PVC condensate drainage are functioning correctly. Customer requires 20x25x4 filters which were not included in this service visit.
Completed preventative maintenance agreement service on dual condenser HVAC system. Changed 16x25x1 air filter, inspected thermostat operation confirming proper temperature control and system cycling, and documented existing corrosion on condensate drain line connections requiring future attention.
Completed cooling check on two air conditioning systems and replaced 16x25x1 air filters with new KOCH brand filters. Observed heavy frost accumulation on evaporator coil indicating potential airflow restriction or refrigerant issue; monitored temperature readings with digital thermometer to assess system performance. Updated customer account information and addressed outstanding payment method concerns to maintain active maintenance agreement status.
Responded to no cooling complaint on first floor air conditioning system. Performed diagnostic testing on HVAC components including capacitor inspection and electrical connections. System tested with specialized equipment to identify cause of cooling failure and ensure proper operation of all mechanical components.
Completed comprehensive HVAC maintenance agreement service on central air conditioning system and two tankless water heaters. Performed diagnostic testing using manifold gauge set to verify refrigerant pressures and system performance, recorded temperature readings of 53.4°F at evaporator coil to confirm proper cooling operation, and conducted visual inspection of all equipment components to ensure optimal system functionality.
Completed comprehensive HVAC maintenance agreement inspection on residential split system including Carrier forced air furnace in basement and air handler unit in attic space. Performed visual inspection of all accessible components, verified proper operation of heating and cooling equipment, inspected ductwork connections and seals, checked electrical connections and disconnect switches, examined condensate drain lines with trap configuration for proper drainage, and documented system condition through photographic records for maintenance file.
Completed preventive maintenance inspection on residential HVAC system including condenser unit and air handler. Accessed return air filter compartment through wall-mounted access panel, inspected filter condition, and verified proper airflow. Performed crawl space inspection of horizontal air handler unit, checked refrigerant lines, verified equipment operation, and documented system condition with photographic records per maintenance agreement requirements.
# HVAC Service Report - No Cool Condition Returned to property for follow-up diagnostic after allowing evaporator coil to fully thaw from previous frozen condition. Connected manifold gauge set to outdoor condensing unit to measure refrigerant pressures and assess system performance. Evaluated both suction and discharge pressures to determine proper refrigerant charge and system operation. Inspected indoor air handler and furnace assembly. Noted airflow direction markings on ductwork. Observed air filter condition - standard pleated filter present at equipment. Checked for proper airflow across evaporator coil after thaw period completed. Performed comprehensive system evaluation to identify root cause of no cooling complaint and frozen coil condition. Monitored refrigerant pressures during operation to verify adequate charge levels and proper system cycling. Assessed overall system performance and operational parameters to ensure unit returned to normal cooling function.
# HVAC Service Report - No Cooling Issue Responded to service call for air conditioning system failing to reach preset temperature after extended runtime with excessive condensation on unit. Upon inspection, discovered severe ice buildup on evaporator coil, completely obstructing airflow and preventing proper heat exchange. Diagnosed frozen evaporator coil caused by restricted airflow. Shut down system to allow ice to thaw completely. Inspected blower wheel assembly and found accumulation of dust and debris on blades affecting air circulation. Cleaned blower wheel thoroughly to restore proper airflow velocity. Verified blower motor operation and confirmed adequate RPM after cleaning. Once coil was fully defrosted, checked refrigerant charge and system pressures. Evaluated air filter condition and airflow across coil. System restored to normal operation with proper cooling capacity and temperature differential. Advised on importance of regular filter maintenance to prevent future fr
Responded to callback regarding excessively hot water temperature following previous day's water heater installation. Upon arrival, verified outlet temperature at fixture measured 127.8°F using calibrated digital thermometer. Inspected Bradford White 50-gallon natural gas water heater and reviewed manufacturer specifications indicating danger threshold of 125°F for scalding prevention. Adjusted temperature setting on gas control valve to reduce outlet temperature to safe operating range per industry standards and manufacturer recommendations for residential applications.
Completed preventive maintenance inspection on one Lennox outdoor condensing unit as part of active maintenance agreement coverage. Inspected outdoor unit condition, verified proper installation on concrete pad, and documented equipment status. Performed internal inspection of blower wheel assembly, noting normal dust accumulation consistent with standard operation. Unit operational and functioning within normal parameters at time of service.
Removed and replaced one 50-gallon water heater from a twinned set installation in basement utility area. Re-piped the plumbing system to accommodate a single water heater configuration, eliminating the dual setup. Reconnected the recirculation line to the new water heater to maintain hot water circulation throughout the system. Capped off the unused exhaust vent and gas line from the removed unit to ensure safe disconnection. Installed new AO Smith 50-gallon residential water heater with proper hot and cold water connections using copper piping. Connected expansion tank above the unit and installed shut-off valves with color-coded handles for easy identification. Verified all pipe connections for proper seal and tested system operation. Cleared obstructions to working area and ensured code-compliant installation.
Responded to service call for leaking water heater on AO Smith tanked unit originally installed in 2013. Upon inspection, identified active leak requiring attention and documented existing plumbing configuration including copper supply lines, gas connections with braided flex lines, and metal flue venting system. Photographed installation showing multiple water heater setup with proper venting through galvanized ductwork and assessed overall system condition for repair recommendations.
Responded to service call for low voltage electrical issues on dual Carrier air conditioning units. Upon inspection, discovered deteriorated wiring connections and aging control board components within the electrical panel. Performed comprehensive low voltage repairs including replacement of damaged wire segments, re-secured loose connections with new zip ties, and tested all control circuits for proper voltage and continuity. Verified both condensing units were receiving proper 24V control signals from thermostat. All systems tested and operational upon completion.
Performed comprehensive diagnostic evaluation on Triangle Tube boiler system experiencing reduced heating efficiency. Inspected hydronic heating components including plate-type heat exchanger, circulation pump, copper piping system, and associated controls. Documented existing conditions showing age-related oxidation on copper joints and fittings, verified proper operation of Tekmar digital thermostat control system currently calling for heat with setpoint at 75°F and ambient temperature at 71°F. Assessed overall system performance and provided estimate for necessary repairs or replacement to restore optimal efficiency.
Completed comprehensive HVAC maintenance agreement service including air conditioning and air handler inspection. Performed system diagnostics with digital measuring instruments, verified proper operation of condensate pump assembly, and confirmed drain line functionality. Replaced 14x20x1 air filter and documented equipment conditions in attic installation area.
Responded to no cooling complaint on 7-year-old residential air conditioning system affecting entire home. Upon arrival, performed comprehensive system diagnostics using calibrated measurement equipment. Measured air-side temperatures and humidity levels at return and supply plenums. Return air readings showed 88.5°F dry bulb with 49.2% relative humidity, while supply air measured 67.4°F dry bulb with 80.4% relative humidity. Calculated temperature split of 21.1°F across the evaporator coil, confirming adequate system performance and proper refrigerant charge. Inspected indoor air handler and furnace assembly in mechanical room, verifying all electrical connections, condensate drainage system, and gas piping. All components found operating within manufacturer specifications with no deficiencies noted. System cooling properly at time of inspection with appropriate airflow and temperature differential.
Responded to service call for non-operational radiant heating system. Upon inspection, found low system pressure as indicated by the boiler pressure gauge reading below operational threshold. Verified thermostat programming showing active heating schedule set for 77°F at 6:30 AM wake period. Inspected boiler feed water assembly including pressure gauge, isolation valves, and braided supply line connections. Restored proper system pressure through the fill valve to bring boiler pressure into normal operating range. Verified all isolation valves in correct positions and confirmed no visible leaks at connections. System tested and confirmed radiant heat restored to normal operation with proper pressure maintained.
Responded to service call regarding boiler system concern with home temperature being excessively warm. Upon inspection, found Honeywell gas valve control unit and HydroStat digital control displaying 206°F, indicating system was actively operating. Verified boiler components including gas valve controls, pressure gauge readings, and digital temperature controller were functioning properly. Customer educated on normal system operation and thermostat adjustment to achieve desired comfort level.
Returned to site with replacement zone damper motor and consulted with technical support regarding zone control system malfunction. Replaced faulty damper motor on Zone #4 ductwork and verified proper communication between zone controller and damper actuator. Confirmed all zone dampers responding correctly to thermostat calls and system operating within normal parameters.
