Home Generator Repair, Installation & Maintenance in Huntsville, AL

Hiller saved the day! My tankless water heater wasn’t working, so I called them up and they had a technician in my driveway within two hours. The technician... Read More

Hiller saved the day! My tankless water heater wasn’t working, so I called them up and they had a technician in my driveway within two hours. The technician Riley, was very professional, knowledgeable, and got our water heater working in no time! Close

I had a great experience from the start beginning with the salesman and ending with the hardest working installers I’ve ever seen. They never took a break unt... Read More

I had a great experience from the start beginning with the salesman and ending with the hardest working installers I’ve ever seen. They never took a break until the job was done. The sales rep showed up at my house to check and see how it was goiIng and if I had any issues. It was just a wonderful experience from start to finish! Close

I'm putting 5 stars, but I'll have to wait to ensure all is working as planned and described. I'm happy that Shamus, the repairman, came back to perform the r... Read More

I'm putting 5 stars, but I'll have to wait to ensure all is working as planned and described. I'm happy that Shamus, the repairman, came back to perform the repair, since he was the one that found the issues... he was very fast and professional. He completed the work in the time he stated. Close

Holler has the most courteous, polite, organized, responsive, respectful, and fast employees I’ve ever had the privilege to meet (or talk to on the phone). I ... Read More

Holler has the most courteous, polite, organized, responsive, respectful, and fast employees I’ve ever had the privilege to meet (or talk to on the phone). I have been very impressed with Jake and all the information he provided regarding how to care for my Water Heater. Close

I was very impressed while he was removing my toilet to put a new seal in unfortunately the footing cracked. He began to profusely apologize, and said not a pro... Read More

I was very impressed while he was removing my toilet to put a new seal in unfortunately the footing cracked. He began to profusely apologize, and said not a problem he will replace the toilet immediately with a new one which he did without question. This is what I call real customer service. Close

Hiller replaced our main floor HVAC. Corey came out and discussed our options and was able to answer all of our questions regarding the different AC unit featur... Read More

Hiller replaced our main floor HVAC. Corey came out and discussed our options and was able to answer all of our questions regarding the different AC unit features. We had multiple quotes from different companies, but Corey was able to match the competitors price while providing a superior unit (20 SEER vs 18 SEER) and Hiller was able to install the unit the next day. Nick came out to install the unit and did a great job. We had some issues with our Nest thermostats and the Bosch compatibility and Hiller replaced both thermostats with new Ecobees at no additional charge! They also stayed late due to rolling power outages. Great service and would recommend Hiller to family and friends. Close

I had a Mitsubishi mini split go out, so I decided to give Hiller a call as I saw they were a Diamond Elite contractor according to the Mitsubishi site. They we... Read More

I had a Mitsubishi mini split go out, so I decided to give Hiller a call as I saw they were a Diamond Elite contractor according to the Mitsubishi site. They were easy to work with, responsive, and competitive on their prices. Thanks to John and the rest of the crew that were able to replace my old unit and get me going again. Close

Excellent Service! Repairman arrived within the scheduled period. He was clean, polite, and knowledgeable. He explained all as he progressed through his steps, ... Read More

Excellent Service! Repairman arrived within the scheduled period. He was clean, polite, and knowledgeable. He explained all as he progressed through his steps, determined the problem and promptly fixed it. Thank you Hiller!! Close

The technician, Carson, was great. He made sure he answered all of our questions. He also made sure everything met with our approval before leaving. I would rec... Read More

The technician, Carson, was great. He made sure he answered all of our questions. He also made sure everything met with our approval before leaving. I would recommend Hiller. However, I am not sure if I received a Military discount after asking about it. Close

Our AC stopped blowing cold air. I scheduled Hiller to come out the next day. They diagnosed the problem quickly and swapped out the blown capacitor. Within 30 ... Read More

Our AC stopped blowing cold air. I scheduled Hiller to come out the next day. They diagnosed the problem quickly and swapped out the blown capacitor. Within 30 minutes of them ringing the door bell, we had cold air again. The techs were on time and professional and the price wasn’t bad at all. I’d use them again. Close

Alex was great. He was very professional, courteous, and explained the reason for the pressure fluctuations in my water system. His diagnosis was spot on and hi... Read More

Alex was great. He was very professional, courteous, and explained the reason for the pressure fluctuations in my water system. His diagnosis was spot on and his repair was fairly quick. The only reason I took off one star was because of the cost. Needless to say, I had sticker shock when I got the price. For a $200 valve, I thought the total would be a lot less than $900 given a 2 hour repair. The only justification for the high cost was that I got a 2 year warranty. Keep in mind that my first valve went 19 years even if it was a contractor cheapo. Close

Hiller responded immediately with a technician to look at my AC unit. The technician they sent, James Keith, was very knowledgeable, professional and prepared. ... Read More

Hiller responded immediately with a technician to look at my AC unit. The technician they sent, James Keith, was very knowledgeable, professional and prepared. He quickly troubleshot my unit and with a part he had in his truck FIXED my AC. Highly recommend Hiller Close

I am very impressed with the care and attention of this company. We called close to midnight last night when one of our units went out (in this heat, it felt li... Read More

I am very impressed with the care and attention of this company. We called close to midnight last night when one of our units went out (in this heat, it felt like an emergency especially since we have a newborn). Hiller immediately answered and said they would come out first thing in the morning. They did so and evaluated / fixed our problem within 2.5 hours. Amazing service and turn around--thank you. Close

I needed my hot water heater replaced and brought up to code so I called Hiller after being recommended by a friend. Alex M. arrived on time to inspect the sit... Read More

I needed my hot water heater replaced and brought up to code so I called Hiller after being recommended by a friend. Alex M. arrived on time to inspect the situation and give an estimate. He was very polite and knowledgeable. He explained everything that needed to be done and why, provided a very competitive quote, and was able to complete all of the work that very afternoon. He cleaned up after himself, inspected his work, and explained to me how the new system works as well as how to maintain it properly. I will certainly be using Hiller for any further repairs/replacements/annual maintenance in the future. Close

Hiller was able to come out on the same day. Their service was quick and professional. The tech took care of all of my concerns. I wouldn't hesitate to use this... Read More

Hiller was able to come out on the same day. Their service was quick and professional. The tech took care of all of my concerns. I wouldn't hesitate to use this company again. Close

I just want to say how appreciative I am of Hiller. I was out mowing my yard today on one do the hottest days of the year in Alabama, and this young man Eric wa... Read More

I just want to say how appreciative I am of Hiller. I was out mowing my yard today on one do the hottest days of the year in Alabama, and this young man Eric was driving by and stopped and asked to help me. I cannot say thank you enough to him. Hiller will now be at the top of my list to call if my air ever goes out. Companies need more employees like this young man. Thanks Eric and Hiller! Close

Randy, the technician, showed up on time. He was very cordial, knowledgeable and very professional when answering our questions about what was going on and how ... Read More

Randy, the technician, showed up on time. He was very cordial, knowledgeable and very professional when answering our questions about what was going on and how to prevent from happening again. Cole (project manager) assisted and both went beyond our expectations checking that everything was working to our satisfaction. Troubleshooting and fixing in one visit. Close

Scheduling and performance way beyond expectations. Easy to schedule, prompt response, fast appointment, solid repair, fair price, attentive, and great communic... Read More

Scheduling and performance way beyond expectations. Easy to schedule, prompt response, fast appointment, solid repair, fair price, attentive, and great communication. Technician was knowledgeable and very thorough. The best service I've had for anything. Close

Excellent, Excellent, Excellent! We actually had three issues that needed to be addressed and not only were they all fixed during the first visit, but our Tech... Read More

Excellent, Excellent, Excellent! We actually had three issues that needed to be addressed and not only were they all fixed during the first visit, but our Technician Chase Moore was on time, professional, and informative throughout the entire process. The pricing was reasonable, and his reference for internal wall-leakage repair was awesome to boot! Mr. Moore knocked it out of the park. I would recommend Hiller for plumbing issues to anyone any day of the week! Close

Michael and Nathan installed my new HVAC system today. They were so nice, knowledgeable and did a great job! They answered all my questions and their service wa... Read More

Michael and Nathan installed my new HVAC system today. They were so nice, knowledgeable and did a great job! They answered all my questions and their service was excellent. I definitely would recommend Hiller. Cory sold me with his presentation and I appreciate all his help. Thanks Hiller! Close

Tech came out on a Friday. Tried to get my old R22 beast back to life. No luck. The project manager was in my home a couple of hours later and gave me a great ... Read More

Tech came out on a Friday. Tried to get my old R22 beast back to life. No luck. The project manager was in my home a couple of hours later and gave me a great discount. New 16 seer system installed Monday. Join their Hiller Club for $27 a month. Worth every penny! A few before and after pictures attached. Close

Hiller was able to get a tech right out to us when our A/C unit died. He was great, checked out the system out and showed & explained everything to me while he ... Read More

Hiller was able to get a tech right out to us when our A/C unit died. He was great, checked out the system out and showed & explained everything to me while he troubleshot. We ended up needing a new system and they were able to get someone out that night to go over all the options. Very low pressure which I really appreciated. They were even able to get us installed the next day, which was perfect. The install team was awesome and left things looking better than before they arrived. Really pleased with the whole experience and everyone we dealt with. We will definitely continue to do business with Hiller. Close

Dalton from Hiller was awesome! I had a leaking water valve under the sink. He suggested replacing the bad valve with a better model and splitting the dishwas... Read More

Dalton from Hiller was awesome! I had a leaking water valve under the sink. He suggested replacing the bad valve with a better model and splitting the dishwasher and faucet into two separate valves. I now have all new water valves under the kitchen sink. Talk about peace of mind. Close

We had our drains all back up in the evening. We have used Hiller before and went ahead and called even though we knew there would be an after-hours charge. The... Read More

We had our drains all back up in the evening. We have used Hiller before and went ahead and called even though we knew there would be an after-hours charge. The dispatcher was very professional and helpful (I don't remember her name but she was wonderful! Started with a T, I think?). Carson called when he was on the way and was polite and professional. He clearly explained everything to us and got to work. He quickly diagnosed the problem and quickly had the problem resolved. Thank you, Carson!! Close

Was available to fix a leaky water pipe. Repair man was professional and knowledgeable. Small leak was repaired within an hour and a half. Great work, howe... Read More

Was available to fix a leaky water pipe. Repair man was professional and knowledgeable. Small leak was repaired within an hour and a half. Great work, however, the price was EXTREMELY high. Almost twice what I paid for the same repair from another plumber (Madison Plumbing). Definitely would not use them again due to the high price. Revised: Hiller refunded a $150 to match prices I had paid for similar repairs in the past. Overall excellent service, however I still believe they are higher priced that some other options. Rating raised from 3 stars to 4 stars. Close

We had a main line break after a car drove too close to the city box. Our fault, no big deal. We called Hiller around 4:45 pm. And by 6:30 pm, their tech arrive... Read More

We had a main line break after a car drove too close to the city box. Our fault, no big deal. We called Hiller around 4:45 pm. And by 6:30 pm, their tech arrived and started working. He was charming, helpful, and fast. He explained the issue, without making us feel silly. He was done by 8 pm. Professional, kind, and quick. He took pictures of the whole process and sent them to us. I feel very confident in his work, and satisfied with the service. Excellent experience for such a stressful issue. Close

Great company!! I can’t say enough positive things about These guys.They are awesome! They work super hard and good at what they do. I will definitely recomme... Read More

Great company!! I can’t say enough positive things about These guys.They are awesome! They work super hard and good at what they do. I will definitely recommend them to anyone! Nice to have a company you can actually TRUST ? Thank You Hiller. Close

Shane Moore is such a nice guy. He came and fixed my problem earlier than I expected. He was very patient to fix the problem and tested it multiple times to mak... Read More

Shane Moore is such a nice guy. He came and fixed my problem earlier than I expected. He was very patient to fix the problem and tested it multiple times to make sure my problem is fully adjusted. Now I know why the company choose the happy face because I was very happy with the result. The price was also very reasonable too. I highly recommended Hiller to everyone, and I will definitely use Hiller for any future problem Close

The two professionals did an excellent job and assured me everything would be alright. One professional stayed until the utility company turn on power and check... Read More

The two professionals did an excellent job and assured me everything would be alright. One professional stayed until the utility company turn on power and check the breakers and appliances were working properly. It was after 830 but he waited until everything was checked and ok. I really appreciate the service and politeness of the servicemen. Close

Chase and Carson were on time, detail oriented and professional installing a new efficient Rinnai water heater. Hiller’s team provided excellent communication... Read More

Chase and Carson were on time, detail oriented and professional installing a new efficient Rinnai water heater. Hiller’s team provided excellent communication, used top quality parts and cleaned up too! John Hoffman was my project manager; job complete in one day as scheduled and quoted. Really appreciate this Huntsville, AL - Hiller Plumbing, Heating, Cooling & Electrical team! Close

Mark did an outstanding job. What was supposed to be a simple move of a thermostat turned into an extended cleaning and adjusting. He kept me informed of every ... Read More

Mark did an outstanding job. What was supposed to be a simple move of a thermostat turned into an extended cleaning and adjusting. He kept me informed of every step and why things were being done. Went above and beyond to make sure everything was working correctly and efficiently. Very pleased with work that was done. Thank you so much! Close

Called with my tenants having the AC out in the condo I’m renting to them. Within two hours it was fixed and my tenants were satisfied! If I ever have a probl... Read More

Called with my tenants having the AC out in the condo I’m renting to them. Within two hours it was fixed and my tenants were satisfied! If I ever have a problem again ill definitely be giving them a call! Awesome job Brandon! This time, in 2022, I called and they were out right as scheduled. Robert explained everything thoroughly and concisely. He gave me a few options and allowed me to choose what best fit my situation. I will always call Hiller anytime I have a need and recommend you to as well. Close

Jamar did a great job coming in with his boot covers on. Very professional and knowledgeable. He was quick with a diagnosis of why our A/c stopped working. F... Read More

Jamar did a great job coming in with his boot covers on. Very professional and knowledgeable. He was quick with a diagnosis of why our A/c stopped working. Fixed within an hour. I would definitely recommend him. I think he needs a pay raise! Over all a great gentleman and worker. Close

We had JJ and Lee come out and help us move some plumbing and re install our hot water heater. They were amazing. They clearly knew what they were doing and got... Read More

We had JJ and Lee come out and help us move some plumbing and re install our hot water heater. They were amazing. They clearly knew what they were doing and got the new plumbing installed and working-while keeping everything clean. Would recommend them 100% of the time. Definitely will request them when more work is ready to be done! Close

The young man that came by last night repair my leak in my bathrooms I believe his name was Eric. He was very courteous. He came earlier than he said he would c... Read More

The young man that came by last night repair my leak in my bathrooms I believe his name was Eric. He was very courteous. He came earlier than he said he would come which I really appreciate it. He didn't stay long he evaluated the situation and repaired the lead from the outside by running a line through the pipes. Overall I really appreciate the service that he rendered. Close

I really liked the service. They were great st communication. Brandon was knowledgeable and provided answers to my questions. He knew exactly what the problem w... Read More

I really liked the service. They were great st communication. Brandon was knowledgeable and provided answers to my questions. He knew exactly what the problem was and fixed it. Highly recommended. Close

I have used One Hour for years, but today had my tune up on A/C unit by Kyle Wright. He impressed me as the most knowledgeable workman I have ever had in the 2... Read More

I have used One Hour for years, but today had my tune up on A/C unit by Kyle Wright. He impressed me as the most knowledgeable workman I have ever had in the 27 years I've lived here. He was friendly, polite,, professional and explained everything to me, including some bothersome dust in one room. No one has been able or willing to ever tell me the cause before and I would definitely trust him to do the next phase if I decide to spend the money. You have a very good workman in him. Close

First of all, setting up the appointment was super easy. I have phone anxiety so their online scheduling was a godsend. Tommy did a great job diagnosing the is... Read More

First of all, setting up the appointment was super easy. I have phone anxiety so their online scheduling was a godsend. Tommy did a great job diagnosing the issue and fixing it. It took less than half an hour and was a reasonable price. I’m thrilled with the job he did. Close

Hiller always delivers! Seth Meals was one of the most efficient, helpful and informative technicians I’ve ever had come out to service my AC Unit. He discove... Read More

Hiller always delivers! Seth Meals was one of the most efficient, helpful and informative technicians I’ve ever had come out to service my AC Unit. He discovered some major draining issues on a routine service call that ended up saving me over $1400 once all was said and done. Major kudos to him and Hiller for always pulling us through anytime those things go haywire! Happy Hiller Club is the best ? Close

Jamar came to the house and provided excellent service. He, documented the service call with pictures of the system and made the necessary notes. His visit reve... Read More

Jamar came to the house and provided excellent service. He, documented the service call with pictures of the system and made the necessary notes. His visit revealed a needed piece of maintenance, which was promptly taken care of. Jamar was able to answer all my questions, he was very polite and courteous. Close

I had a gas line installed along with an electrical outlet modification from 220v to 120v. The team for both projects were super professional and I appreciate ... Read More

I had a gas line installed along with an electrical outlet modification from 220v to 120v. The team for both projects were super professional and I appreciate their hard work in this Alabama humidity. The team lead , mr Ford, provided honesty and great customer service. Thank you. However, I’m sitting here waiting on someone from the company to inform me of when the inspector will come to my house. It would have been nice if someone would contact me and say the inspector is running behind or a to schedule a time/date. I still haven’t paid for the project and the money in my account is calling me to spend it on something else. Come on y’all. It’s not that hard. Close

Frank A., did a great job on my Ring Floodlight camera install. Earlier in the year he also gave me a quote on an eletricial charing system. He knew the ins and... Read More

Frank A., did a great job on my Ring Floodlight camera install. Earlier in the year he also gave me a quote on an eletricial charing system. He knew the ins and outs of electrical charging systems and was very knowledgeable. When I accept the quote I plan on asking the company to have him perform the install. I also used this company to install an outdoor outlet. I can't remember the name of the person that came, but they did a great job! Close

I never give five star reviews. This is only the second in five years. Hiller deserved all five stars. Punctual, pleasant, upfront, quick, neat, and excellent w... Read More

I never give five star reviews. This is only the second in five years. Hiller deserved all five stars. Punctual, pleasant, upfront, quick, neat, and excellent work. Everything from the initial phone call to the plumber’s visit to the payment was clearly explained, easy, and fair. Thank you Hiller for an excellent experience. Close

Shane was great! Very knowledgeable and made sure everything was properly working with our plumbing before he left. I would def recommend this plumbing service.

I called to report a leak that required me to shut off water to my whole house, I had someone out within 30 minutes to get it fixed. They had it fixed and every... Read More

I called to report a leak that required me to shut off water to my whole house, I had someone out within 30 minutes to get it fixed. They had it fixed and everything was done in under an hour from the time I called. Great service! Rapid response. Close

We really had a great experience! Everyone on the phone was so energetic and fun, and our plumber Tommy was so knowledgeable and great. They were able to come t... Read More

We really had a great experience! Everyone on the phone was so energetic and fun, and our plumber Tommy was so knowledgeable and great. They were able to come the same evening we called, and though they couldn’t fix our issue that night they were able to turn the water back on and Tommy returned the next day to replace the pipe. Overall a great experience and we are happy we chose Hiller. Close

Hiller came out to do the checkup on our A/C unit and in doing so help with rerouting our dryer vent that was blowing on our unit. Jeff and Mark were so helpfu... Read More

Hiller came out to do the checkup on our A/C unit and in doing so help with rerouting our dryer vent that was blowing on our unit. Jeff and Mark were so helpful they went far and above to take care of this for us. They were extremely helpful and knowledgeable. Highly recommend Hiller! Close

Update 1/14/2020 They found my water pressure regulator had gone bad and water pressure was over 100 psi. They installed a new pressure regulator for a fair pri... Read More

Update 1/14/2020 They found my water pressure regulator had gone bad and water pressure was over 100 psi. They installed a new pressure regulator for a fair price. Update 4/29/2021. I gave them a 2nd chance and I'm glad I did. I noticed water in my crawl space so I called Hiller. Chance Draper came out and within a few minutes identified the problem, my water heater was leaking and needed to be replaced. Chance replaced the water heater and now the leak is solved. The only thing I can think of I would change is they should ask if I have a preference on the water heater I would like to have installed (They didn’t ask, they just installed the brand they always do I guess) I would have wanted the smart water heater that is Alexa enabled, it would notify me via my phone if there was a water leak. Other than that they are perfect. After waiting 15 minutes for someone to answer the phone I gave up. Close

The tech was great! Answered my questions. Made recommendations for possible future work based on those questions. Work completed quickly. Issue resolved. Ve... Read More

The tech was great! Answered my questions. Made recommendations for possible future work based on those questions. Work completed quickly. Issue resolved. Very pleased! Close

Service people were initially delayed but once they arrived they were empathetic to the situation and went out of their way to correct the issue.