When your furnace stops mid-winter or the cooling system gives out on a hot afternoon, the first question is always the same: how soon can someone get here? JAG Heating & Air takes calls every day from 7:00 AM to 10:00 PM, and same-day appointments are often available when the situation can't wait. Whether you're a homeowner dealing with a system that's been limping along for a season or a landlord trying to get a rental unit back to livable, we handle the heating and cooling work that keeps Redwood properties comfortable.
We cover the full range of HVAC work: repair and diagnosis, seasonal maintenance, full system replacement, ductless and mini-split installs, indoor air quality upgrades, and emergency no-heat and no-cool calls. When you call us, you reach the people who actually show up.
In a town the size of Redwood, a lot of the equipment we see has been in place for years. Older homes tend to have systems that have never been looked at by anyone other than the original installer, and additions or converted spaces that the original ductwork never properly reached. One call is rarely like the next, because the situation behind it almost never is.
A furnace that won't fire, an air conditioner that blows warm air, or a heat pump stuck in one mode are all situations that need a technician on-site, not a troubleshooting checklist. We run a full diagnostic before recommending anything, because the symptom and the cause are often different things. A unit that won't start might have a failed igniter, a tripped limit switch, or a control board that has lost communication with the thermostat. We find the actual fault before any parts are ordered. We'll find the fault and set it right.
Uneven temperatures, rooms that never reach the set point, or a system that runs constantly without making a dent in the heat are all signs that something is off. The problem might be airflow restriction from a clogged filter or dirty evaporator coil, a duct leak bleeding conditioned air into an unconditioned space, or a refrigerant charge that has dropped over time. A maintenance visit or targeted diagnostic can catch these before they become a full breakdown. The service page carries the full breakdown of what each type of visit covers.
When repair costs start climbing and the system is already well past its expected service life, replacement is often the more practical answer. We walk through the comparison honestly: what the repair involves, what a replacement would look like, and which one makes more sense for the property. There's no pressure in either direction. You get a clear explanation and a confirmed price before anything is scheduled.
Ductless and mini-split systems solve a specific problem that central HVAC can't always address. In older homes where ductwork was never installed, or in additions and outbuildings that sit outside the reach of the main system, running new ducts through finished walls and ceilings is often impractical or prohibitively expensive.
A ductless mini-split places an air handler directly in the space that needs conditioning, connected by a refrigerant line to an outdoor unit. There's no ductwork required. The result is independent temperature control for that space, whether it's a room addition, a detached garage converted to living space, or a bedroom that has always been too hot in summer and too cold in winter.
We install ductless systems for both heating and cooling, and they work efficiently across the mild winters and hot summers common to this part of the Pacific West Coast. For a home that has never had central air conditioning, a mini-split is often the most straightforward path to getting cooling into the house without a full duct installation. Call us and we'll walk you through your options.
Same-day appointments are often available for urgent situations, particularly no-heat and no-cool calls. We take calls every day from 7:00 AM to 10:00 PM, including weekends. If your system is completely down and a tenant or household can't wait, call early and we'll tell you what the day's schedule looks like.
For non-emergency calls, scheduling is straightforward. You describe what the system is doing, we ask a few questions, and we set an appointment window. You'll know the window before we hang up, and we confirm the visit before the technician heads out.
Rental properties and occupied commercial spaces get the same response. A system-down call at a rental affects the tenant, and we understand that a property manager's timeline is tighter than most. We keep you informed from diagnosis to final test so you can communicate with whoever is waiting on the other end. One call brings a technician to your door.
Many homes in Redwood were built before central air conditioning was standard in this region, and that's changing fast after recent summers pushed temperatures well past what older construction was designed to handle. A first-time central AC installation requires a working duct system to distribute the air. If the ductwork is already in place, the installation is a matter of matching the right equipment to the space and connecting it properly. If it isn't, a ductless approach is usually the better fit. We assess the home before recommending either path.
A boiler heats the living space through radiators or radiant floor circuits, and it's a different system than a furnace in almost every respect. When a boiler isn't heating properly, the fault might be in the circulator pump, the expansion tank, the pressure relief valve, or the controls. We diagnose and repair hydronic heating systems and handle maintenance that keeps them running through the cold months. Domestic hot water is a separate system and belongs to the plumbing trade.
Banging, squealing, rattling, and grinding are all the system telling you something is wrong before it fails completely. A banging furnace often points to delayed ignition or a loose blower component. Squealing usually means a motor bearing that is wearing out. Rattling can be debris, a loose panel, or a component that has come partially free inside the unit. None of these sounds go away on their own, and running the system while a mechanical problem is developing typically makes the eventual repair more involved.
These are some of the more common electrical-side failures on HVAC equipment, and they account for a large share of the no-start calls we handle. A failed capacitor means the compressor or fan motor won't start even though the rest of the system is trying to run. A worn contactor prevents the outdoor unit from receiving the signal to turn on. A control board fault can produce almost any symptom, from a system that won't start to one that runs in the wrong mode. These components are diagnosed with the system powered, and the repair is typically straightforward once the fault is confirmed.
An AC or heat pump that has lost refrigerant will cool less effectively, run longer, and eventually stop cooling altogether. Low refrigerant is not a maintenance item to top off. It means there is a leak somewhere in the system, and adding refrigerant without finding and fixing the leak is a temporary patch at best. We locate the leak, repair it, and restore the charge to the correct level. A system running at the right charge cools more efficiently and puts less strain on the compressor.
The specifics for a job like this are on the page covering HVAC work.
Doing HVAC work right matters, and we'll help you get it right, starting with the quote. The price for the diagnostic is explained on the phone before we schedule. If the technician finds a repair that needs to be done, the cost of that work is confirmed before anything proceeds. You're not authorizing anything until you have a clear price and have agreed to move forward.
What moves a quote is the nature of the fault, what has to be accessed to reach it, and whether a repair or a replacement is the better answer for the equipment involved. An older system with a major component failure is priced differently from a straightforward capacitor swap. We explain the difference and let you decide. We protect your floors and finishes while we work, and we leave the space the way we found it.
For installation and replacement work, the scope and the price are confirmed before any equipment is ordered. Call us and we'll handle the rest.
We serve Redwood and the surrounding area throughout Josephine County. If you're in a neighboring community, we cover you too. That includes Grants Pass, Merlin, New Hope, Rogue River, and Foots Creek.
Built for homeowners. Ready for property managers. Ready for your system.
Whether the call is coming from a single-family home, a rental property, or a commercial space, coverage extends across the area. Call (678) 824-6361 to confirm service at your address.
Turn the system off at the thermostat if it is making unusual noises, smelling like something is burning, or tripping a breaker repeatedly. For a system that is simply underperforming but running normally, leaving it on is fine. When you call, describe what the system is doing and we can advise you on the spot.
Yes. We protect floors and finishes while we work and leave the equipment space the way we found it. If there is debris from a repair or installation, it is cleared before the technician leaves.
A system that runs without satisfying the thermostat is usually dealing with one of a few things: a refrigerant shortage, a dirty or restricted coil, a duct system losing conditioned air before it reaches the living space, or equipment that is undersized for the load it is being asked to carry. A technician can identify which of those applies during a diagnostic visit.
Yes. We serve Redwood and the surrounding communities throughout Josephine County, including Grants Pass, Merlin, New Hope, Rogue River, and Foots Creek. If you're not sure whether your address falls within our coverage area, a quick call will confirm it. We take calls every day from 7:00 AM to 10:00 PM, and same-day appointments are often available for urgent situations anywhere in the area.
We explain the options clearly before any decision is made, including what each path involves and what the costs are. Whether that explanation is provided in writing depends on the scope of the job and what is most useful for you. If you need documentation to share with a landlord, an owner, or a management group, let us know and we can discuss what format works.
Older homes in smaller towns often have systems that have gone years between service visits, which means minor faults accumulate rather than getting caught early. A dirty evaporator coil, a clogged filter that was never swapped, or a refrigerant charge that dropped slowly over time can each push a system toward failure faster than age alone would. A diagnostic visit often turns up several small issues that, addressed together, extend the life of the equipment significantly. Call (678) 824-6361 and we'll schedule a visit to assess what your system actually needs.
Most manufacturers require installation by a qualified technician for the warranty to remain valid. We can speak to the installation work we perform. For specific warranty terms, the manufacturer's documentation is the definitive source, and we recommend reviewing it before any equipment is purchased. If you have questions about what a warranty covers, ask on the call and we will help you understand what we know.
In most cases, yes. Duct leaks most commonly occur at joints and connections in accessible areas like attics, crawlspaces, and mechanical rooms, and those can be sealed without touching finished walls or ceilings. If damaged sections are inside finished spaces, we discuss the access options with you before any work is planned.
Sometimes, yes. A quick conversation on the phone can rule out simple causes like a tripped breaker, a clogged filter, or a thermostat set incorrectly. That said, an accurate diagnosis requires a technician on site, and we never recommend a repair path based on a phone description alone.
In most cases, the technician needs access to both the indoor equipment and the outdoor unit, so someone should be present. If that is not possible, let us know when you book and we can discuss what access arrangements might work. Some jobs also require a conversation with the homeowner before work can begin, so we recommend planning to be available.
Whether it's a furnace that quit, a heat pump running in the wrong mode, a mini-split that needs service, or a central AC that hasn't been touched in years, JAG Heating & Air handles the full range of heating and cooling work for Redwood and Josephine County. We're available every day from 7:00 AM to 10:00 PM.
Know the price. Know the arrival window. Know your technician.
Call (678) 824-6361 for a quote, and we'll get a technician out to take a look.
Also serving: Grants Pass, Jacksonville, Central Point. Everywhere else we go is in our complete service area.
We handle the full range of heating, cooling, and air quality work for Redwood homes and businesses, from an emergency no-heat call in January to a first-time AC installation before summer hits. The table below lays out each service, what it covers, and who it fits best so you can find what you need and call with a clear picture of what to expect. Qualified HVAC technicians handle every job, and the price is confirmed before anything is scheduled. If you have questions the table does not answer, call us and we will walk you through your options.
| Service Type | What the Service Includes | Best For | Good to Know |
|---|---|---|---|
| Emergency HVAC Service | no-heat and no-cool calls, system-down diagnosis, urgent same-day scheduling | any situation where the heating or cooling system has stopped working and cannot wait | We take emergency calls every day from 7:00 AM to 10:00 PM, including weekends. |
| Indoor Air Quality & Air Filtration | whole-home filtration assessment, filter rating and compatibility review, air purifier or filtration system installation | households concerned about dust, allergens, or general air quality circulating through the system | We assess what your current system can support before recommending a filtration approach. |
| Wildfire-Smoke Air Filtration (MERV-13+) | existing system compatibility assessment, MERV-13 or higher filter recommendation, whole-home air purifier option where needed | Rogue Valley homeowners and property managers preparing for smoke season | Standard residential filters are not rated to capture the fine particulates that wildfire smoke produces. We explain what each MERV rating is designed to capture. |
| Heat Pump Electrification | heat pump sizing for home layout and climate, removal of existing gas furnace or older heat pump, installation and system commissioning | homeowners replacing a gas furnace or upgrading an older heat pump as part of a move toward electric heating | Redwood's mild winters make heat pump performance efficient through most of the cold season. Any related electrical work is handled by the appropriate trade. |
| Thermostat & Smart-Control Installation | compatibility check with existing equipment, thermostat removal and new installation, system calibration and walkthrough | homeowners who want better temperature control or are upgrading to a smart thermostat | A properly matched smart thermostat can reduce unnecessary run time and improve daily comfort. |
| Ductwork Repair & Sealing | duct leak location and diagnosis, sealing of problem sections, replacement of damaged ductwork | homes with uneven temperatures, high energy bills, or rooms that never get comfortable | Leaky ducts are one of the most common causes of a system that works hard but delivers little. |
| Full System Installation & Replacement | full system sizing and equipment selection, removal of the existing unit, installation and final operational test | homeowners replacing an aging or failed system and property managers upgrading rental units | System replacement is one of the most common high-value calls we handle, and the price is explained before anything is scheduled. |
| Heating & Furnace Repair | ignition and burner diagnosis, blower and air handler service, heat exchanger inspection | any household facing a no-heat situation or a furnace that is running but not keeping up | A fall tune-up is the simplest way to catch problems before they become a mid-winter breakdown. |
| First-Time AC & Ductless Cooling Installation | home layout and load assessment, ductless mini-split or central AC recommendation, full installation from outdoor unit to final check | older Redwood homes built before central air conditioning was standard | After recent summers pushed temperatures well above historical norms here, first-time cooling installs have become one of our most common calls. |
| AC Repair & Service | refrigerant leak diagnosis, condenser and compressor service, airflow and cooling troubleshooting | homeowners and landlords with a system that has stopped cooling or is underperforming | Same-day appointments are often available during peak cooling season when the call cannot wait. |
| Heat Pump Repair & Service | refrigerant circuit diagnosis, reversing valve and defrost checks, air handler and controls service | homes running a heat pump for both heating and cooling that is not reaching temperature | Heat pumps require a different diagnostic approach than furnaces, and we service them accordingly. |
| Seasonal Maintenance & Tune-Ups | system controls and airflow check, coil cleaning and refrigerant pressure review, component condition assessment | homeowners who want to avoid unexpected breakdowns before heating or cooling season | Scheduling a tune-up in spring or fall catches small issues before they become expensive repairs. |
Call (678) 824-6361 and we will walk you through which service fits your situation and what to expect before anything is scheduled.
(678) 824-6361