Mulligan Heating has been a family owned and operated business since 1955 when it was founded by Kerwin Mulligan. In 1978, Mike and Pat Mulligan purchased the business from their father and still actively run it today. The Mulligan's are Committed to customer loyalty and satisfaction by offering quality and dependability at a reasonable price. In today's economy, we understand every dollar counts and that is why we are committed to working with and helping every customer meet all their heating and cooling needs affordability.
Business highlights
71 years of trusted experience
Services we offer
Residential and commercial heating & cooling, new construction, replacements, duct cleaning & heat pumps.
Our A/C went out the day before so we were scrambling to find HVAC company to come out ASAP to look at it and hopefully fix it. I picked Mulligan because they were close and had great reviews and it worked out great for me. Work was diagnosed and finished in about 15 minutes and our air is back on and working perfectly. Replaced a bad part that must have gone bad in a brown out due to storms the night before. I think we just found our go to company for HVAC problems.
Description of Work: Needed to get A/C back up and running after stopped working
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$200
Karen S.
08/2017
5.0
heating & air conditioning/hvac
 + -1 more
I don’t know what they charged, but the part was expensive. I would use them again. I’ve known them for 50 years.
Description of Work: They provided service.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$100
Karen S.
08/2017
5.0
heating & air conditioning/hvac
 + -1 more
They were good. I’ve used them for myself for 30 years.
Description of Work: They provided service.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Katherine M.
03/2017
5.0
heating & air conditioning/hvac
 + -1 more
.
Description of Work: I used Mulligan Heating & Cooling to winterize our furnace and AC and clean the humidifier.
Rating Category
Rating out of 5
Yes, I recommend this pro
Jarred A.
02/2017
5.0
heating & air conditioning/hvac
 + -1 more
I was very pleased, we were back up and running in a matter of hours.
Description of Work: Repair of non working furnace
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$220
Janet S.
01/2017
5.0
heating & air conditioning/hvac
 + -1 more
unknown
Description of Work: .
Rating Category
Rating out of 5
Yes, I recommend this pro
Linda W.
04/2015
5.0
heating & air conditioning/hvac
 + -1 more
unknown
Description of Work: They did a furnace inspection as requested.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$60
Adrian R.
01/2015
1.0
heating & air conditioning/hvac
 + -1 more
Continued from section above: So he comes down in the basement again and opens up the furnace and starts taking everything apart ripping wires out from their sockets like he's weeding it, unscrewing screws that fall everywhere. I was around in the basement watching him and occasionally asking questions but seems that this somehow offended him because he was very quick to shoo me away answering "this takes 4 hours and I really need space here to watch what I'm doing". Anyway, I gave him space as he wanted because I was worried that indeed he would do mistakes and then blame them on me. As he was working there I occasionally went down to see what he's doing but couldn't really say anything as he did his best to ignore me. Seemed stressed about time and was rushing things pretty hard. As he got close to the end, I was paying more attention to what he was doing, especially when things started to come together and wires went back into their place and he turned it on for the first time. First time, it was still showing code 23 and was resetting right before the blower motor had to kick in. He messed some more with the wires and now code 14 was blinking. Oh boy! He started looking around, pulling some wires out, push them back in and turns it ON again. This time, a loud rapid clicking sound could be heard (possibly from a valve or relay), lights in the house started flashing with the clicks and the furnace was blinking code 13. He clearly got something wrong. He said that the A/C is turning ON together with the furnace. OMG! Went back upstairs and waited and after a while, a strong smell of burning was coming from the vents - the inevitable happened, he burned something down. I could hear him talking on the phone and then he came upstairs and told me that "the circuit board is broken, water must have leaked on it, I am going to get a replacement. You'll feel a smell now from the new heat exchanges.". He left the furnace running while he was gone to get a new board. I could see it running for a while and then resetting with code 13. Loud clicking sound was still there. Who leaves an unfinished project and just walks out with that burning smell and leaves the machine plugged in and running with errors? It could have caught on fire, leak gas, explode, who knows?. He came back 30 minutes later with a new aftermarket board. I immediately asked him if I am going to be charged for the board. He said "for the board not because maybe I have done something to break it, I cannot tell if it was like that, but I'll charge you for the pressure switch". So, he was going to replace the pressure switch also (perhaps assuming that they were broken per code 23 that was shown earlier). I also asked him if he's sure if the board is broken (seemed to me a lttle odd since water cannot easily get onto that board). His reply was "I'm doing this for 20 years". So, I was just suppose to bow down to his experience. So, he replaced the board, replaced the switches and turned it back on. Guess what? It was doing the same thing - run for a minute then shut off with code 13. I looked at the broken board and I see a popped relay on it. Also I see the board is epoxy coated which makes it even less probable that it was water damage that broke that contact relay. I asked him about code 13 and he said that it must be from the igniter and then I see him swap two wires at the gas valve. As soon as he does that and turns it back on, the clicking noise goes away and the blower started running. Now it seemed that the furnace was running but it was still showing code 13. He wanted to put the panel back on and call it a day but what about that code 13?. He said that it might take a while for the code to go away and the furnace needs to cycle (whatever that means). Couldn't tell if he was right or wrong to be honest - I am no HVAC expert, probably it does need to run for a while. So I told him that I will keep an eye on it and call him if it does not go away. His awkward answer was: "don't call if you have heat. We're very busy and we're all over the place this time of year". Oh yeah? my furnace is displaying an error and you just want me to sit cozy? Payment was $495 (400 for the heat exchanges and 95 for the pressure switch). It took him 6 hours to complete the job. But the worst part was not over yet as the furnace started putting a bad burn-like smell in the house. Even after leaving the windows open all day (in the midst of winter by the way), my wife could smell the bad odor as soon as she walked in the house. She's also asthmatic and this smell - likely coming from some bad fumes - could hurt her bad. Burned smell and code 13... Thanks Mulligan! The guy left without even doing a check. I took matters into my own hands and I looked in the burner view and checked that there was enough flame. I put my hand on the blower motor's case and seemed cool (not overheated). I checked the two venting pipes: one was cool and one was hot - as it should. I went outside and checked the exhausted air - it was smelling differently that the one indoor. What could it be? I remembered that he used a red caulk (I researched and it's called RTV sealant) to seal the heat exchanger to some faceplate and perhaps that was smelling - I don't know, but it was not pleasant. About code 13, I looked it up in the furnace manual and seemed like something was wrong with the igniter. I checked the schematic and I found a mistake. The guy swapped the ground wire with the blue wire from the gas valve. I turned everything off and put the wires back according to the schematic and when I turned it on: Voila! no more code 13. Hey Mulligan, how much are you paying me for "cleaning up" after your guy? For a guy with "20 years experience" this sure is a lousy job. Are all their customers supposed to do a check-up themselves after the technician is gone? Next morning the smell woke me up before the alarm clock went on, and I never wake up without an alarm clock. It was bad. At 10AM I called them from work and explained (this time a man picked up the phone, let's call him greeter2) that there is a smell and they need to come over and check right away because it could be carbon monoxide or other burned gases that can kill us. Greeter2 said that that's indeed worrisome and he'd like to send someone over but all his technicians are out now and I should call the next day in the morning (before 8AM) to catch them when they are in the office before they leave so that one of them comes over. Next morning, I called at 7:20AM only to get an answering machine. I did not leave a message but called again at 7:30AM and another man answered (say Greeter 3). I told him my name and he says "ok". Ahem...like "ok, so?". I told him about the smell and the call from yesterday and he said that he has 4 "no-heat calls" ahead of me and one of his guys would probably come "sometime this morning". Right. Again no specific time. He said that I should have called their 800 emergency number to leave a message - so my call from the day before apparently did not matter and greeter2 never talked with greeter3. Again, needless to say, took time off from work and waited home in that smell for someone to show. But, I had no clear guarantee whether someone would come or not and when. On the phone, greeter3 sounded very evasive like he wanted to get rid of me. Perhaps I should have reminded him that I did pay for a job that was not completed. By this time I was fed up with hooligan heating - I mean Mulligan Heating - and didn't wanted to see the same guy show up again and break something else. Instead, I picked up the phone and called another company. They offered to come right that morning which was very pleasant to hear. I called back Mulligan to tell them that I do not require their services anymore since I hired someone else to look that the problem. I spoke with Greeter 3 again and he seemed a little more concerned this time and promised that someone will come. So, now you have someone available? He did offer to make things right but at that time I already made up my mind. He kept telling me that they're in the business for 45 years like this somehow automatically makes them experts when we clearly saw that their technician was a goofball. He wanted it to make it sound like I am not reasonable and I should not have to pay another company when they can come for free. But it's not always about the money, is it? He told me he's the owner. He promised to send a different technician. So here's the thing, if the owner treats his customers like they're some kind of cattle, what can you expect from employees?One hour later the same Mulligan technician called. First thing he asks: "has that guy came yet?" - referring to the other company I hired to look at the problem. "if not, I came come now to look at it". First of all, thanks for the call, but the other day you didn't seem to bother calling ahead. Second, your boss, the owner, said he was planning to send a different technician yet I hear you're coming again, and third where's the concern about the smell, about the code 13? (I didn't tell them I fixed code 13 myself). Thanks for caring, but looks like all you care about is if another company comes to look at your mess. So, thanks, but no thanks. The other company did come that morning and they did look at the furnace. They did a CO emissions test (something that Mulligan never did) and inspected the duct work and the furnace. Turns out that the smell comes from the heat exchanges but he did recognize that it's a little more pronounced than the usual smell when you put new heat exchangers. He also said that the pressure switch did not need to be replaced and that Mulligan shouldn't have charged me for a new switch. The switches don't work when the heat exchangers are cracked. I will follow-up with them from now on. They did a lot more and charged only $60 for this short-notice call.
Description of Work: Mulligan Heating and Cooling replaced the primary and secondary heat exchanger in my furnace and in the process they broke the plastic drain pipe, broke the circuit board, replaced other expensive parts that didn't need replacement but charged me for them and left the work unfinished and I had to call a different company to verify. Furnace is now producing a bad burning smell. Short story: stay away from this company. They brag they do business for 45 years but looks to me they haven't progressed since then. Owner seems rude and evasive. Technician (no names) doesn't have any clue what he's doing. Does not call ahead and does not answer any of your questions. They made me feel like I'm at their mercy on my own time and money. Unprofessional. Keep looking. Long story: A few weeks ago I noticed that the furnace status LED was blinking error code 23 (pressure switch related). Since the pressure switch was sharing power supply with the humidifier water valve which was serviced earlier I thought that it might be because of the humidifier. However, even if the humidifier disconnected, I saw water leaking from the furnace on the floor. This is where I decided to contact someone to come over and look at the furnace and verify what's going on. Since there was a sticker of Mulligan Heating and Cooling on the ductwork, I did not do my homework to research for others and just called them. First call was with a lady greeter and I told her about the problem: leaking furnace and error 23. She scheduled an appointment for a Wednesday morning. Seems like afternoon calls are very expensive. I had to take time off from work for that. The time window she gave me was 8 to 12 which was very vague, so I asked her to tell the technician to call ahead before he comes over. Wednesday morning, right after breakfast, when I was still in my pajamas I hear the door bell, and surely enough it's the guy from Mulligan. I told him that he was supposed to call ahead. He rudely responded "do you want me to go back in the van and call?". I didn't wanted him to leave but I was a little ashamed that I was in my pajamas and I did not have time to prepare for his visit (e.g. turn basement lights on, move stuff from around the furnace, take a shower, etc.). So as he walks inside the house se sends me to the thermostat to turn the temperature to 80 to make sure the furnace is on. As I am doing that, he invited himself down in the basement, turned the lights on and started moving the laundry table that was close to the furnace (which I did not have time to move because he did not call). So anyway, he's screeching the table on the basement floor, throwing it away from his path and opens the furnace panel. As I come down I started introducing him to the problem but he interrupted me and pointed to the furnace drain pipe on the floor and told me: "your pipe is leaking". The pipe was indeed leaking, just now, and it was completely broken. The break was fresh and I don't remember it being even cracked before. Apparently while I was upstairs busy turning the heat to 80, he broke the plastic pipe with the table legs when he tried to move the table away. Well done dude, first thing you do is to break a pipe! I asked him if he's going to charge me to fix it. He said that he won't and he rushed upstairs to his van to get pipe glue and spare parts. He came back down and started fixing the pipe in quite a hurry. He fixed it but he has done it wrong because now it sits about 1/2" above ground when before it was laying on the ground completely. This causes the pipe to shake when the furnace is ON but the biggest problem is that I cannot put 4" wide furnace filters anymore because the pipe is in the way and the filter needs to go above it to get into the furnace. 1" filters still work because they can be easily bent. Nice work again buddy! I asked him how come now is sitting 1/2" above ground (which, BTW it makes it even more prone to be broken again, you just need to mistakenly step on it). He said: "I did that to let the water downfall, you need a little pitch". Yeah right, here's another "it's a feature, not a defect" answer I never heard before! After this short incident, he briefly explains that the furnace is leaking because the secondary heat exchanges are broken and they need to be replaced. I asked about code 23 and he said that because heat exchangers are broken, there isn't enough pressure in them and that's why you get that code. He said it's $400 to fix and takes 4 hours to do because he needs to pull everything apart. That was it. Then he got up and said "it'll be $95 for today, make sure you call and make an appointment". $95? I asked. Yep, and he said that "I didn't charge you for the pipe and if you had called us in the afternoon it would have been $125". Was he trying to make me feel that I'm getting some sort of a deal here? I paid the ridiculous sum of $95 although I should have protested given the pipe incident. I guess I was just too nice. Side note: he gave me a receipt and it was written on it in two different spots: "AM. Call before". So after he left, I called and asked them to come back and replace the heat exchanger. She called me back a few hours later and confirmed that they can come on Monday morning to do the job. Monday morning I find the same guy parked on the driveway blocking my wife's car. She told him to move the van because she needed to go to work. If he had called ahead - like he should have - then we would have known to park our car on the street. It's the second time he's supposed to call and he doesn't. Continued in the section below....
Rating Category
Rating out of 5
quality
1.0
value
1.0
professionalism
1.0
responsiveness
1.0
punctuality
2.0
$590
Response from Mulligan Heating & Cooling
According to this customers review on company B's page: Company B did not observe anything unusual - and that Mulligan Heating did install it correctly. He paid a service call of $95.00 the day before. We returned with parts and he was charged 495.00 for heat exchangers and pressure switch.
Suzanne O.
05/2014
5.0
heating & air conditioning/hvac
 + -1 more
Everyone we have dealt with from Mulligans has been helpful and courteous! There is always follow ups and they will politely contact us from time to time to see if we need any services. that was why we contacted them fo a quote on our windows. They are honest and reliable.
Description of Work: Mulligans has done our windows at or first house, added additional insulation in our current home, and most recently provided us with a quote for our windows. We have been very happy with everything they have done for us! The only reason we did ot have them put more windows in our home was due to unexpected tree damage after this extreme winter. We are planning n using them in the future.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$6,000
Lydia S.
04/2014
5.0
heating & air conditioning/hvac
 + -1 more
unknown
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Michelle T.
12/2012
5.0
heating & air conditioning/hvac
 + -1 more
Our furnace has been operating fine. I would recommend and use Mulligan Heating again. We live in Novi, MI
Description of Work: On a Saturday morning after Thanksgiving, I realized that our furnace that heated the second floor was only blowing out cool air and then turning off. My husband called Mulligan Heating, INC. of White Lake Michigan and Brian their technician arrived within one hour. We were told over the phone what the possible charges would be. They charge $150 for a service call, $120 per hour in 15 minute increments and parts charges. When Brian arrived I informed him of what was going on with the furnace and directed him to the basement. He quickly got to work. He replaced the ignitor which is so frequently the cause of such matters that he brought the part with him. He completed the work well within 15 minutes. The parts charge was $80 bringing our total to $260 including service charge and $30 service fee.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$260
Mary B.
05/2012
5.0
heating & air conditioning/hvac
 + -1 more
It's $175 for the year for two units, they service it, clean the coils, check the freon and cooling levels, check the duct work, thermostat and make sure the dial is running up to snuff.
Description of Work: Mulligan Heating Inc was last here for quarterly maintenance.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$175
Mary B.
05/2012
1.0
heating & air conditioning/hvac
 + -1 more
We had to show them the door. Every time we had them do service we either had to end up replace the unit or replace an expensive part. We had to follow them around. I followed hin down to the room and I had just been in the room not 20 minutes ago and he walked in there looked around then came out and told me we had a leak. I asked him what he did because that water was not there 20 minutes ago. We had to have our coils removed and our drain removed. The time before that he checked the outside unit and he told me I needed to fix something out there. I told them I didn't want to speak to them because they costed me an arm and a leg, the lady got a little mouthy so I hung up on her. The guys seem to know what they are doing.
Description of Work: They came out for maintenance.
Rating Category
Rating out of 5
quality
1.0
value
1.0
professionalism
3.0
responsiveness
1.0
punctuality
4.0
$350
Response from Mulligan Heating & Cooling
We're not sure if this is a misunderstanding or a mix-up of companies. We just started with this customer and are still doing the maintenance on the equipment. We do not have a female working with us, and never have.
REGINA G.
09/2011
5.0
heating & air conditioning/hvac
 + -1 more
I think that they are very honest. They give you the problems with anything that is wrong with the heating and cooling. They let me know about how everything is operating and whether I have to change the filter and things like that. They tell me before they actually do it so that I don't have to pay it if I am not liable.
Description of Work: I used the services of Mulligan Heating Incorporated during this summer. They did a check on my heating and air conditioning unit.
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
Heating and Air Conditioning,
Air Duct Cleaning
FAQ
Mulligan Heating & Cooling is currently rated 4.4 overall out of 5.
Monday: 7:30 AM - 5:00 PM
Tuesday: 7:30 AM - 5:00 PM
Wednesday: 7:30 AM - 5:00 PM
Thursday: 7:30 AM - 5:00 PM
Friday: 7:30 AM - 5:00 PM
Mulligan Heating & Cooling accepts the following forms of payment: Check,Discover,MasterCard,Visa