Some customers call once when something breaks and never need to call again for years. Others are on a regular schedule, a tune-up in the fall before the furnace gets its first real test, a check on the AC before the humid stretch of summer arrives. Both kinds of calls come out of Candlewick Lake, and Al's A/C & Heating handles both the same way: a qualified HVAC technician at the door, a diagnosis explained before any work starts, and a price confirmed before anything is scheduled.
The person who answers the phone often knows the job before anyone arrives at the door. That matters in a town this size, where most of the heating and cooling work comes from single-family homes, and where the equipment in those homes tends to be older and has often gone without attention for longer than it should. Whether the furnace quit overnight or the AC is just not keeping up the way it used to, we cover it.
Not every HVAC call is the same, and the situation that leads to it shapes everything about how the visit goes.
A system that shuts off, blows the wrong temperature, or makes a noise it never made before is the call that comes in first. The job starts with a proper diagnosis, not a guess. We check the components most likely to be at fault, explain what we found, and walk through the options before any repair begins. In a home where the equipment has been running for a long time without a professional look, a diagnostic visit sometimes turns up more than the original complaint, and we cover that honestly.
A system that heats and cools without complaint is still worth a seasonal visit. A pre-winter furnace check and a spring tune-up on the cooling side catch wear before it becomes a failure. Filters, coils, refrigerant levels, electrical connections, and blower condition all get checked. The system is tested and readings checked before sign-off, so the visit ends with confirmation that the equipment is ready for the season ahead, not just an assumption that it is.
Older homes in this area often have equipment that has been repaired more than once and is approaching the point where another repair is not the right answer. When the math tips toward replacement, the conversation changes. We cover what a full system swap involves, what has to be decided before the work starts, and what the property will look like on the other side. The service page carries the full breakdown of what each type of installation covers.
A ductless mini-split is a practical option for a home addition, a finished basement, or any room that the existing duct system never properly reached. Each air handler serves the space it is mounted in, with no new ductwork required. We handle sizing, installation, and setup, and confirm the system is operating correctly before we leave.
For a home that has central heating but no cooling, adding central air means connecting a new outdoor unit and air handler to the existing duct system. Sizing matters here. An oversized unit short-cycles and does not control humidity properly. We size the equipment to the home before anything is ordered.
In older homes, ductwork that has never been inspected often leaks at joints and connections, sending conditioned air into walls and crawl spaces instead of into the rooms it is supposed to serve. The result is uneven temperatures and a system that runs longer than it should. Sealing those gaps restores airflow where it belongs and takes load off the equipment.
These are among the most common electrical faults on both AC and heating equipment. A failed capacitor prevents a motor from starting. A worn contactor interrupts the circuit that powers the compressor. A control board fault can cause the system to behave erratically or not respond to the thermostat at all. Each of these is a targeted repair once the fault is confirmed, and all three are worth diagnosing properly rather than replacing parts by process of elimination.
The region's humid summers put real moisture into the air inside a home, and a central air conditioner does not always pull enough of it out to keep the space comfortable. A whole-home dehumidifier integrates with the existing HVAC system and handles humidity control across the whole house. In winter, a whole-home humidifier adds moisture back when forced-air heating dries the air out. Both are installed as part of the HVAC system, not as standalone units.
Replacing a furnace and AC together is a full-day job for most homes. The old equipment comes out, the new units go in, and the ductwork connections, refrigerant lines, and electrical connections at the equipment are all handled as part of the installation. The property is without heating or cooling for the working portion of the day, and we confirm that window before the job starts so there are no questions about timing.
Before the work begins, a few things have to be decided. Equipment sizing is the most important one. A system that is not sized correctly for the home will not perform correctly, no matter how well it is installed. HVAC work sized and installed the way the manual calls for is the standard we hold to on every replacement. We also confirm what the existing duct system can support and whether any duct modifications are needed to match the new equipment.
Heat pump installation follows a similar process. For a ducted heat pump replacing a gas furnace, the staging is much the same. For a ductless mini-split installation covering multiple rooms, the job runs room by room, with each air handler mounted, connected, and tested before we move to the next. Either way, the system is fully operational and confirmed before we sign off. Give us a call and we will take care of it.
The price on a repair call depends on what the fault turns out to be and what it takes to reach it. A capacitor replacement on an accessible unit is a different job from a control board swap on a furnace buried in a tight utility room. We confirm the diagnosis first, then give you the price before any work starts. You know what is being done and what it costs before we touch anything.
A replacement quote depends on the equipment selected, the size of the home, and what the existing installation requires. If the ductwork needs modification or the refrigerant lines need to be extended, that goes into the quote. Nothing is added after the fact. Ask what the price covers and you get a straight answer.
For maintenance visits, the rate is confirmed on the call before the appointment is booked. We are open every day from 5:30 AM to 11:00 PM, and pricing is explained up front regardless of when you call. Call (779) 363-9289 and we will give you the rate on the phone.
Same-day service is often available for urgent calls. Emergency no-heat and no-cool situations are handled within our published hours, 5:30 AM to 11:00 PM every day, and those calls are treated as the priority they are. When you call, you get a real person who can take the details and confirm the visit before you hang up.
For non-emergency scheduling, appointments are arranged on the call. We confirm the visit window when you book, and a qualified HVAC technician handles the job. For rental properties where a tenant needs to stay comfortable, or a business that cannot shut down for a full day, we talk through the timing on the call so the visit fits the situation. We show up ready to go to work.
We serve Candlewick Lake and the surrounding communities throughout Boone County and the broader region. That includes Timberlane, Poplar Grove, Caledonia, Argyle, and Belvidere, along with the rural and residential areas in between. If you are in the area and unsure whether we cover your address, call and ask. We will give you a straight answer before anything is scheduled.
Homeowners in Candlewick Lake often read the heating and cooling page before getting in touch.
Most manufacturers require that equipment be installed by a qualified HVAC technician to maintain the warranty. Work performed outside those requirements can void coverage. We handle installation to manufacturer specifications, which is the baseline for keeping the warranty intact from the start.
Ask how the replacement equipment will be sized, what the installation covers from start to finish, and what the price includes before anything is scheduled. It is also worth asking whether the existing ductwork is in good enough condition to work with the new system, since a properly sized unit connected to leaking or undersized ducts will not perform the way it should.
Yes. Mixed equipment is common in homes where systems have been replaced or added at different times. The diagnostic approach is the same regardless of brand: we identify the fault, explain what it takes to fix it, and confirm the price before any repair starts. If the equipment is at the point where replacement makes more sense than another repair, we cover that conversation too.
Ice on HVAC equipment almost always means the system cannot move heat the way it should. The most common causes are restricted airflow from a clogged filter or blocked return, and low refrigerant from a leak somewhere in the system. Running the unit while it is frozen makes the problem worse, so the right move is to shut the system off and call us so we can find the root cause rather than just thaw the coil.
We confirm that on the call when the appointment is booked. If a property manager, agent, or tenant is arranging the visit on behalf of an owner, we make sure the billing and authorization details are clear before we schedule anything. Before anything is scheduled, the billing contact and authorization are confirmed and on record.
A complete loss of heat is treated as an urgent situation, not a routine appointment. We take those calls seriously and work to get a technician out as quickly as scheduling allows. Same-day service is available when the schedule permits, and we are open every day from 5:30 AM to 11:00 PM for exactly these situations.
Often yes. If there are multiple things to address, such as a thermostat that is not reading correctly, a filter that needs replacing, and a coil that has not been cleaned, we can usually handle them in one visit rather than scheduling separately. Let us know everything you want looked at when you call so we can plan the visit accordingly.
Yes. We work with managing agents and property managers who schedule service for properties they oversee. When you call, let us know who the invoice should go to and how access to the property will be arranged. We confirm those details before the visit so there are no gaps on the day.
Older equipment and older duct systems do change the diagnostic picture. Components wear differently over time, and ductwork that was installed decades ago may have gaps or undersized runs that affect how the new or repaired equipment performs. We check what the existing installation can support as part of any replacement conversation, and we explain what we find before any work begins.
A photograph can be useful context, particularly for equipment condition or an obvious fault like ice buildup or physical damage. The most useful information when you call is a description of what the system is doing or not doing, how long it has been happening, and any model information you can find. The diagnostic happens on the visit, but the more detail you can give us on the call, the better prepared we can be.
Permit requirements for HVAC work can vary depending on whether the property sits within a municipality or an unincorporated area of the county. We confirm what applies to your address before any installation is scheduled, so you are not left to figure that out on your own. If a permit is required, that gets factored into the plan before the work starts.
Al's A/C & Heating covers heating and cooling repair, installation, and maintenance for homes and properties in Candlewick Lake and the surrounding area. Call (779) 363-9289, tell us what the system is doing, and we will take it from there.
Call today. Scheduled tomorrow. Comfortable by the weekend.
We also take work in: Poplar Grove, Belvidere, Machesney Park. There is more on our list of communities.
Heating and cooling work covers a wide range of jobs, and knowing which service fits your situation makes scheduling easier. The table below lays out what we handle, who each service is best suited for, and a practical note to help you plan. If you have questions about a specific job or want to talk through your options, call for a quote and we will walk you through it.
| HVAC Service | What It Covers | Best For | Good to Know |
|---|---|---|---|
| Ductwork Repair & Sealing |
| homes with uneven temperatures, higher energy use, or a system that runs longer than it should | Leaky ducts waste conditioned air before it reaches the rooms it is meant to serve. Sealing gaps restores airflow and reduces the load on the main unit. |
| Emergency HVAC Service |
| any situation where a heating or cooling system has failed and waiting is not an option | Emergency calls are answered every day from 5:30 AM to 11:00 PM. You get a diagnosis before any work starts, not a guess. |
| Furnace & AC System Replacement |
| Candlewick Lake homeowners whose furnace and central air system are both nearing the end of their useful life | Candlewick Lake winters are long enough that furnace reliability is not optional. Pairing a furnace and AC replacement lets both systems be sized to the home at the same time. |
| Heat Pump Repair & Service |
| homes running a heat pump as the primary heating and cooling source | Heat pumps work both seasons, so faults can appear in summer or winter. The system is tested and readings checked before sign-off. |
| Whole-Home Dehumidification & Humidity Control |
| Candlewick Lake homes that feel sticky or uncomfortable even when the AC is running during humid summer months | High indoor humidity makes a space feel warmer than it is and strains the cooling system. A whole-home unit handles moisture as part of the system, not as a standalone fix. |
| Indoor Air Quality & Air Filtration |
| households concerned about air quality, allergens, or how the home breathes day to day | Whole-home filtration works through the existing air handler, treating air moving through the system rather than just one room. |
| Thermostat & Smart-Control Installation |
| homeowners with an outdated or malfunctioning thermostat, or those wanting remote scheduling and control | Compatibility with the existing heating and cooling equipment is confirmed before installation. Zoning controls can also be discussed if different areas of the home need independent temperature management. |
| AC Repair & Service |
| homeowners and property managers with a struggling or failed air conditioner | Most common faults are identified on the first visit. Same-day service is available when scheduling allows. |
| Full System Installation & ReplacementMost Popular |
| homeowners replacing aging or failed HVAC equipment in a home or rental property | Replacing both the furnace and AC at the same time avoids sizing mismatches and is often the more practical path when both systems are aging. |
| Seasonal Maintenance & Tune-Ups |
| homeowners who want to catch developing problems before the heating or cooling season begins | Pre-season scheduling, before the first hot week of summer or the first cold snap of fall, is the best time to avoid an emergency call at peak demand. |
| Heat Pump Installation |
| homes adding a heat pump for the first time, including additions and rooms needing independent comfort control | Cold-climate heat pump models now perform well in northern Illinois winters. Ductless mini-splits are a clean option where no existing ductwork is available. |
| Heating & Furnace Repair |
| any home or building that has lost heat or is heating unevenly | Calls are answered every day from 5:30 AM to 11:00 PM, including weekends, so a Saturday morning no-heat situation does not have to wait. |
Every job is different, and the right answer for your home or building depends on the equipment, the situation, and what you are trying to solve. Call for a quote and we will talk through it with you: (779) 363-9289.
(779) 363-9289