When a single component fails on an otherwise sound system, the repair is straightforward: identify the fault, replace what failed, confirm the system is running correctly, and leave. When the equipment itself has reached the end of its useful life, the conversation is different. A full system swap means sizing new equipment to the home, removing what is there, and installing the replacement so it runs the way it is supposed to from the first day. Al's A/C & Heating handles both ends of that range for homes and businesses in Sycamore, from a blower motor that stopped turning to a full furnace-and-AC replacement on a house where both systems are aging together.
Sycamore is a town where a lot of the housing stock carries real history, and older homes often have HVAC equipment that has been running for a long time. Property managers keeping rental units habitable and homeowners who have never had a technician look at the system in years both end up in the same place eventually: something stops working and they need someone who can get to it quickly, explain what they found, and fix it right. The person who answers the phone knows the work, so the conversation starts with someone who can actually help.
Call for a quote: (779) 363-9289. We are open every day from 5:30 AM to 11:00 PM.
A burning smell at startup is worth taking seriously. It can be as simple as dust burning off coils that sat idle through a long season, or it can point to something in the electrical side of the equipment that needs attention before the system runs again. A musty smell usually means moisture is sitting somewhere it should not, often in the air handler, the coil, or the ductwork. Either way, the smell is the system telling you something. We identify the source before the system keeps running.
A furnace that will not fire, blows cold air, or shuts off before the house reaches temperature is one of the more urgent calls we take. Work performed by qualified HVAC technicians starts with a full diagnostic: ignition system, heat exchanger condition, blower function, and the thermostat signal that tells the system when to run. We do not guess and replace parts until something works. We find the fault first, explain it, and confirm the price before any repair begins.
Standing water near the air handler or furnace usually traces back to a blocked or disconnected condensate drain. Left alone it causes damage to the equipment and the space around it. It can also point to a refrigerant issue that is causing the coil to ice and then thaw. A service visit checks both possibilities and clears the cause rather than just the symptom.
Heat pump adoption is growing across this part of Illinois, and for good reason. A heat pump handles both heating and cooling from a single system, and cold-climate models now perform reliably through the kind of winters this region sees. We handle new installations for homes that want to move away from gas-only heating, and replacements when an existing heat pump has run its course. Sizing the system correctly to the home is where the work starts, and every installation is code-compliant HVAC work from start to finish.
Leaking ducts are one of the more common reasons a home has rooms that never quite reach the right temperature. Conditioned air escapes before it gets where it is supposed to go, the system runs longer than it should, and the rooms at the far end of the duct run stay uncomfortable. We inspect the duct system, seal gaps and leaks, and replace sections that are too far gone to seal. Getting the distribution right makes everything else the system does more effective.
Same-day service is often available in Sycamore, and calling earlier in the day gives us the best window to fit an urgent visit in. For a system that has stopped heating or cooling entirely, we treat those calls with the urgency they deserve. A home with no heat in the middle of a cold stretch, or no cooling during a humid summer week, is not a situation that can wait for a convenient appointment slot.
For rental properties and commercial spaces that need to stay occupied and operational, we work around the constraints of the building. A tenant cannot be without heat overnight, and a business cannot shut down a customer-facing space for a full day of HVAC work. We confirm the appointment window when you call and give you a realistic picture of how the visit will go before anyone shows up.
We are open every day from 5:30 AM to 11:00 PM. For urgent calls, reach us at (779) 363-9289 and we will work to get a technician out as quickly as the schedule allows.
A quote on an HVAC job is not a fixed number until the technician has seen the system. What the fault turns out to be, how accessible the equipment is, whether a repair makes sense or a replacement is the better answer, and what parts the job actually requires are all things that move the number. We give you the rate on the phone when you call, confirm the price before anything is scheduled, and walk through what the visit covers so there are no questions about it afterward.
A repair on a system that is otherwise sound looks different from a diagnostic visit that ends with a recommendation to replace. If the equipment is aging and the repair cost is significant relative to what a new system would run, we say so. That conversation happens before any work starts. Call (779) 363-9289 and we will go through it with you.
Not every space in a home or building has ductwork, and not every ductwork layout can reach the areas that need conditioning. Additions built after the original HVAC system was installed, converted garages, finished basements, and older homes where running new duct would mean opening walls are all situations where a ductless mini-split makes more sense than trying to extend the existing system.
A mini-split puts an air handler directly in the space that needs it, connected to an outdoor unit by a small refrigerant line. There is no duct run to lose air through, no major construction to get it there, and the system can heat and cool independently of whatever the rest of the house is doing. Zoning and comfort-control systems built around mini-splits also let different spaces run at different temperatures without affecting each other. We handle mini-split installation for single rooms and multi-zone setups, and we can talk through whether it fits the space when you call.
A town of Sycamore's size has a range of housing and building types, and the HVAC call that comes out of a recently built home is not the same as the one that comes out of a house where the equipment has been running for a long time without a service visit. The situation that leads to the call shapes what the visit involves.
A system that is behaving strangely, running constantly, making noise, or not reaching temperature needs a diagnostic before anything else. We identify the fault, explain it in plain terms, and give the price before any repair starts. Air handler and blower service, refrigerant checks, ignition and burner inspection, and thermostat diagnostics all fall into this category. The full breakdown of what each repair visit covers is on the service page.
A working system that has not been inspected recently is a system with problems that have not shown up yet. Seasonal tune-ups cover the components most likely to cause a failure: coil condition, refrigerant level, blower performance, filter condition, and the electrical connections that hold everything together. Humidifier and dehumidifier installation and inspection also fit here, particularly for homes where humidity control is part of the comfort picture. Scheduling a maintenance visit before heating or cooling season starts is the most practical way to avoid an emergency call later.
When the repair cost on aging equipment starts to approach what a replacement would cost, or when a system has failed in a way that cannot be practically fixed, replacement is the right answer. We handle the full swap: load calculation to size the new equipment correctly, removal of the old system, installation and commissioning of the new one, and a full operational check before we leave. The service page carries the complete breakdown of what a replacement visit involves.
When a technician arrives at a Sycamore address, the first thing that happens is a look at the system. Not a quote for parts, not a recommendation before anything has been checked. The diagnostic comes first. We identify what is wrong, or confirm the system is operating correctly if that is what we find, and explain it before anyone agrees to anything.
If a repair is needed, the price is confirmed before work begins. If the system needs more than a repair, that conversation happens at the same time. The system is tested and readings checked before sign-off, so you know the result before we leave. We show up ready to go to work.
We serve Sycamore and the communities throughout DeKalb County and the surrounding area. That includes Cortland, DeKalb, Genoa, Burlington, and Maple Park. If you are in the area and want to confirm we cover your address, call (779) 363-9289 and we will give you a straight answer before anything is scheduled. Give us a call and we will take care of it.
the page about heating and cooling explains the range of work covered.
We need someone present to provide access to the equipment and to authorize the work once the technician explains the diagnosis and the price. If nobody is available at the scheduled time, call us as early as possible to reschedule so the slot can be used for another call. For exterior-only work, we can discuss arrangements on the call, but indoor access requires someone to be there.
The best time to find out a system has a problem is before the weather forces the issue, not during it. Scheduling a maintenance visit in the fall before heating season or in the spring before cooling season means any developing fault gets caught while appointment availability is still flexible. Waiting until the first extreme weather day of the season means competing with every other call coming in at the same time.
Short cycling means the system turns on, runs briefly, and shuts off before finishing a full heating or cooling cycle. It puts extra wear on the compressor and other components, and a system that short-cycles regularly will fail sooner than one that runs normal cycles. It is worth calling about rather than ignoring, because the underlying cause tends to get worse rather than better on its own.
Yes. After a repair, the technician can walk you through what caused the problem and what, if anything, can be done to reduce the chance of it happening again. That might be as simple as a filter change schedule, or it might point toward a maintenance visit before the next season. We give you the practical information, not just the repair.
Yes. A burning smell from heating or cooling equipment is worth treating as urgent rather than waiting to see if it clears. It can point to an overheating motor, a failing electrical component in the equipment, or debris burning off a heat exchanger. Shut the system off and call us at (779) 363-9289 so a qualified HVAC technician can inspect it before the system runs again.
Call us as early as possible if the date needs to change. We will work with you to find a replacement slot. Giving us as much notice as you can helps us fill the original time and get you rescheduled without a long wait.
If the schedule and the scope allow for it, yes. A combined visit that covers both the furnace and the AC is practical when both systems need attention at the same time, particularly before a season change when you want both sides checked before they are needed. Call and we will talk through what the visit would cover and confirm the price before anything is booked.
At the end of every visit, we run the system through a full operational cycle and check the readings before we leave. For cooling work that means confirming refrigerant charge, airflow, and temperature split. For heating work it means confirming ignition, burner operation, and heat delivery. We do not sign off until the system is running the way it should.
Older homes in the area often have equipment that has been running for a long time without a service visit, and ductwork that was never quite right for the layout of the house. When we come out to a home like that, the diagnostic sometimes turns up more than the original call was about. We explain everything we find before any work is agreed to, and you decide what gets done.
Whether it is a furnace that stopped firing, an AC that will not cool, a heat pump behaving strangely, or equipment that has simply reached the end of its life, Al's A/C & Heating serves Sycamore and the surrounding DeKalb County area. Call today. Scheduled tomorrow. Comfortable by the weekend.
Call (779) 363-9289. We are open every day from 5:30 AM to 11:00 PM.
We also take work in: DeKalb, Huntley, Rochelle. 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 |
| Sycamore homeowners whose furnace and central air system are both nearing the end of their useful life | Sycamore 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 |
| Sycamore 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