One unheated weekend in a six-unit Old Louisville building cost me $1,072, and most of that was not the repair itself. The furnace serving unit 3 quit around 9:40 on a Friday night in January. My on-call plumber answered, drove over, took one look at the gas furnace and told me he does not work on those. He was right to refuse, and I was wrong to have saved only his number. The fix was keeping one hvac service louisville ky landlords can actually reach after hours on file before the next failure instead of during it. Here is the postmortem, straight out of my maintenance log.
The Call Came In After Every Office Closed
Friday at 9:40 pm is the worst hour for a furnace to quit, because every office with a scheduler in it is dark. I called four numbers in eleven minutes. Two rang into voicemail, one reached an answering service that promised a callback Monday, and the fourth was my plumber, who came as a favor and left ten minutes after opening the furnace door. The tenant had a two-year-old in the apartment and a thermostat reading 51 degrees. That is not a maintenance ticket any more. That is a phone problem, and I built it myself by treating heat as something to sort out once it broke.
Where No Heat Rules Come From Varies Locally
Habitability requirements are local, and I am not going to tell you what yours are. Louisville Metro runs a property maintenance code through its own codes and regulations office, other Kentucky counties handle enforcement differently, and a landlord two states over is reading a different rulebook entirely. Ask your own code enforcement office three plain questions: what minimum indoor temperature applies during heating season, how quickly heat has to be restored after a tenant reports it, and what documentation they expect. I asked mine after that weekend rather than before, which is the wrong order. Keep the answers with your lease templates.
The Worked Cost Of One Unheated Weekend
Here is what the log shows for that weekend, and these are my figures rather than a quote for yours. The plumber’s after-hours trip charge was $95 for a visit that fixed nothing. Two electric space heaters from the hardware store Saturday morning ran $64. I put the tenant and her son in a hotel for one night at $128, because a 51 degree apartment with a toddler in it was not something I wanted to argue about. Saturday’s emergency diagnostic was $75, the inducer motor was $340, and after-hours labor added $220, so $635 was the actual repair. I credited $150 against February rent. The weekend comes to $1,072 all in, which means $437 of it was a penalty for having no heating contractor on file. If a repair lands under my $1,200 per-incident ceiling and the part is on the truck, I authorize it on the phone that night; above that number I want a second opinion before anyone pulls a furnace. Replacement money is a different category altogether, and Bryant’s furnace replacement guidance, updated in May 2026, puts an installed furnace between $3,800 and $12,000 depending on equipment type and how complicated the install turns out to be.
A Plumber Is Not A Furnace Technician
Licensing is the entire reason he would not touch it. Kentucky licenses heating and cooling work separately from plumbing, and a gas-fired appliance with a heat exchanger and a flue is not a pipe. What keeps turning up in my log is that the trade I called first was rarely the trade that could finish the job. One thing is not negotiable, and tenants should hear it before the first cold snap rather than during one: nobody heats a room with a gas range, a grill, or an unvented fuel-burning heater. If a carbon monoxide alarm sounds, or anyone in the unit feels dizzy and nauseous, everybody leaves the building and calls 9-1-1 from outside. The American Red Cross fire and carbon monoxide fact sheet gives that same order for a suspected leak: get to fresh air immediately, then call 9-1-1.
One Number On File Prevents The Whole Weekend
The log had been telling me this for months and I never read it back. Since January the number of one full-service contractor sits in the lease binder, in my phone, and on a card taped inside each utility closet, and I confirmed before saving it that a human answers overnight. Ask what after-hours genuinely means to them, what the emergency call fee is, and whether the same firm covers furnaces, air conditioners and air quality equipment, because splitting that across three companies is how a Friday night becomes a Monday morning. One hvac service louisville ky landlords can reach at 10 pm is a fifteen-minute decision that spared me most of $1,072 the next time a unit went cold.
