Hiller Plumbing, Heating, Cooling & Electrical — Local services in Lebanon

This is my first bad review of any business and I really hate to do it, but I not getting any where with them. All I asking is please give me full details on what was done when you replace my condenser, and why I was still having the same issue when it was replaced. After Jimmy your technician had to go up to the attic and he was upset because he found the problem . The problem was the cooling system copper tubing had to be replaced , he took measurement and replaced it with new tubing, it look like there was restriction that should have been look at before they decided to replace the Unit . I would like to see that on your maintenance report. Also before you service my HVAC everything was working. Your first technician in his report every thing was working properly. Hear a email I sent to you, all I got back was what was replaced, you still have not given me a full report.

Email that was sent: On June 06 2025 Technician Charles Cook did service on my HVAC On both units. Boths units were working before his maintenance on his Job #6296389462 (HVAC Service HVAC Checklist he said Static Pressure were working correctly he test both return and supply. Everything was working properly . After service was done , I left my house and so did the Technician . When I returned back to my home after being gone for day , I notice the top floor unit was not working, cool air was not coming out of the vent , it was making noise. So I turned off the unit and text Charles . I was at my daughter house taking care of their dog, because they were gone for the week. I got back no response , so I email on June 10 ( My top floor air conditioner is not working I haven’t been home for a week and today I noticed it not cooling. I turn it off can you please send somebody to fix it. They send a Technician to see what the problem was, Darrell Dooley said it was my Condenser, condenser had a leak and the coil needed to be replaced . He said it was under warranty, I waited to hear back from them . They call me July 4 telling me it was not under warranty and the system needed to be replaced. New unit was replaced on July 09, 2025, after unit was install with new unit , I was told to lower the thermometer 2 degrees . The new unit was not working properly, no cool air was coming out of the ductwork. Jimmy your technician had to go up to the attic and he was upset because he found the problem . The problem was the cooling system copper tubing had to be replaced , he took measurement and replaced it with new tubing, it look like there was restriction that should have been look at before they decided to replace the Unit . I have ask for a full report on what was did by your Technician and I have not received anything. I feel that if they would have made sure everything was working after the maintenance was done by Charles we would have not replaced the Condenser. You got your money for the work that was done, but I have not received anything back . I would like to see everything that was done on that maintenance report.

Maintenance Report: I hope this message finds you well. I'm writing to request a detailed maintenance report for the recent service performed on my HVAC system by your , ( Technician's Jimmy on June 9, 2025 . Unfortunately, I have not yet received the full maintenance report detailing the checks performed and the issues identified. Could you please send me the complete report? This would help me understand the mainteance process and the steps taken to ensure everthing is functioning correctly. Thank you for your attention to this matter. I look forward to your prompt response. Best regards, Ronald Munoz

Thank you! HILLER for resolving my issues. I really appreciate you taking the time to hear my concerns. I am grateful for the refund and looking...

Updated:

I initially left a negative review due to a few issues with the service that could have been avoided with a more properly trained technician. As someone who works in computers and regularly deals with electronic components, I was able to diagnose and fix the mistake the tech had missed. While I wasn't completely satisfied at the time, I didn't request a refund.

To my surprise, Hiller issued me a full refund on all the work they had done, which I did not expect. This gesture was appreciated, even though I had already resolved the issue on my own. Overall, I was mostly satisfied with the service aside from the initial hiccup. I hope they continue to improve their technician training, as that would have prevented the issue in the first place.

Credit to Hiller for making things right, even when it wasn't requested, which shows they care about customer satisfaction.

Original:

My experience with Hiller was mixed, with some notable concerns regarding the competency of their technicians. My intention is not to disrespect anyone, but as a customer, I have valid concerns.

I initially contacted Hiller because my attic air handler was causing the outdoor unit to shut off. It was quickly diagnosed as a coil leak, which triggered safety procedures to shut down the handler. The technician did a commendable job replacing the coil under challenging conditions—an unventilated attic on a hot day. However, there were significant oversights.

Despite my reminder about a nearby fusebox, the technician chose to simply open the air handler door instead of utilizing the breaker. This method prevented the EEV motor from resetting properly after the coil replacement, resulting in the unit blowing hot air once the installation was completed.

When the issue persisted, the technician called his supervisor, who suggested checking if the EEV motor was engaging with a specific noise upon restart. They concluded the EEV motor might also be faulty. However, I later discovered that simply flipping the breaker resolved the problem, indicating the motor was functional all along.

This oversight, coupled with the suggestion of additional, potentially unnecessary work, raises concerns about either incompetence or potentially misleading practices. Such oversights are unacceptable, particularly following a major repair like a coil replacement. They call into question the technician's ability to diagnose and resolve issues accurately. Additionally, the air handler door remains ajar, allowing cool air to escape into the attic, highlighting the need for a more meticulous approach.

On top of these concerns, Hiller has been sending me $25 invoices for a service I don't want, didn’t authorize, and I sure won’t be using their company for at any time in the future. This adds another layer of frustration to...

We had Hiller come out and install a pair of split HVAC systems for us. Things seem to be running well, but the install ruined what could have otherwise been decent experience. Aside from an electronic invoice with generic line items, we weren't given any kind of paperwork or documentation - no manuals, no warranty paperwork, nothing that proves we actually purchased our systems, nothing. None of the items that came with our new smart thermostat were left for us, which means we're now missing all of the accessories that came with the unit and, again, we have no proof of purchase. It would also be nice to know how to use the thermostat without having to find the model number somewhere in the software and searching for the manual online. I'm pretty sure some sort of maintenance plan was included with the install but, without any information about it whatsoever, we're not quite sure what it is, what it covers, or what we need to do to hold up our end of the deal?

If Hiller doesn't hold up their end of the warranty deal, and I'm not super confident they can or will, we're in for a rough ride with the manufacturers given we can't prove we ever purchased their equipment.

Overall attention to detail was poor at best. Among other things: If you're going to quote me for all new everything, including new disconnects, then maybe you should install new disconnects for the systems? I still haven't found the surge protectors that were supposed to be installed with the systems. Could be they are there somewhere, but I can't find them. If you're going to knock out both banks on the air handler cabinet for heater circuit breakers, that's fine. But, maybe if you only fill one of those banks with cutoff switches, you at least throw a piece of tape over the other bank so the system isn't sucking in a bunch of gross, warm air from underneath the house? If you accidentally break the light in the crawl space during your install, that's fine. Things happen. But, maybe give me a heads up instead of picking up what's left of the light and tossing it by the entrance without saying anything? If you need to knock off some stone veneer to run lines through the wall, that's fine. But, again, maybe give me a heads up so I can put it back for you?

All in all, I'm disappointed and not particularly pumped about the longevity of the work that was done. You might consider looking elsewhere for a crew that that'll pay a bit more attention to the details. Or, at the very least, don't let your install crew have your spouse sign off on their work and bounce before you get a chance...