How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%96+52.4Reliability 24%94+22.8Value 14%100+14.1Replies to reviews 7%58+4.1Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.93SCOREMaertin Heating & Cooling
Joliet, IL · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #7Position by Experts Score among all companies we track in this category. of 10 boiler installers · 5.0★ from 351 Google reviews
Report card
Percentile vs other boiler installers (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: craft & service and value; weakest: replies to reviews.
Reviews for your job
Customers hired Maertin Heating & Cooling for 8 kinds of job.
Maertin Heating & Cooling for a/c system maintenance
Clear ✕All 40 Google reviews tagged “A/C system maintenance”
Always have had good experience with Maertin. From the first call to work completion, everyone is knowledgeable and great communicators. Rich knows his work very well, professional, and good communicator.
I had my A/C system replaced . I've got nothing but great things to say about the experience. Ive been a Maertin customer since about 2004 when someone else installed a new Trane furnace for me and I had problems with it . The guys that installed it couldn't solve it so I called Maertin and Scott came out . One…
We have been regular customers ever since another HVAC service tried to convince my wife that he thought he heard a bearing going out. (She wasn't buying what he was selling.) We had a lot of bearings in our farm machinery when I was growing up, and I knew very well what a bad bearing sounded like and that wasn't…
I was very pleased with the service of Maertin Heating. Techs were professional and courteous. Would recommend them.
I’ve used Maertin several times over the years and have never been dissatisfied. Always professional, prompt and thorough. Pricing is good. Would definitely recommend for both maintenance and trouble shooting of ac and heating. The last week of June of 2026 my 22 yr old plus AC failed. Couldn’t have been worse…
I bought a house 5years ago & needed a new HVAC/AC system. Maertin was recommended & after the consultation with Scott, I immediately scheduled the install. I have them come out every year for check ups & the ladies on the phone are always extremely pleasant/helpful. I am always able to get appointments when I need…
They are the best and so kind! Always are so professional.
Maertin has always done a great job maintaining our heating and cooling systems. Their technicians are on time, dependable and knowledgeable.
I've used this company many years. Always been totally satisfied with their service and the people that have serviced me.
Maertin provided quick competent service. Other contractors tried to talk me into a new system. The Maertin representative honestly provided me with all the options and suggested the one most cost effective to me, not the one that earned them the most money! I will use them again!
Maertin did an absolutely wonderful job replacing two old heat exchanger furnaces with state of the art high efficiency gas furnaces. It involved complex work that required working in tight spaces. Appearance is much better than before and couldn’t be happier with the results!
Scott was very thorough with options when deciding on system. Explained everything again after install. The techs rocked out the install even on this cold day. Thanks again Scott and your staff. Even the girls in the office followed up!
I have used Maertin Heating & Cooling for many years. This company is dependable and trustworthy. Michael M. and Brian D, the service technicians, who installed my new furnace, were professional and knowledgeable. After the furnace was installed, their employer, Scott came to answer any questions I had and…
A timely visit by a knowledgeable employee
Our home is 25 years old and we had Maertin replace our air conditioner and HVAC. They also have done work at my son and daughters houses and they always do a great job and we appreciate their service.
Never disappointed with their service. They have the most helpful and professional staff with the utmost integrity. I will always give them my business.
Had Maertin Heating and Cooling out to service my A/C unit. I decided on a new unit, and they installed the same week! They were excellent to deal with and extremely profession. I was not pressured into anything I didn’t want, or any decisions. Highly recommend!!!
Rich was very informative.
I have been a customer of Maertin Heating & Cooling for several years now. A couple years ago I had a new furnace/AC unit installed. I have them come out twice a year to have my unit cleaned and check to make sure everything is work as it should. Scott and his team are the best. Everyone in the office is great,…
Fantastic, Quick service. A great company.
Maertin Heating and Cooling is a great company to do business with. They are prompt, professional and very courteous.
Maertin repaired the blower on my furnace quickly, efficiently and professionally. Our technician was knowledgeable and fixed the the problem!
Service is good
Rich was professional and friendly. He phoned prior to arrival and introduced himself. He proceeded to the attic and diagnosed the issue in short order' Bad blower motor.. He obtained the parts and reinstalled in a timely manner. Now i'm chilling out in a nice cool home. Thanks Bill F.
I am very pleased with the quality and professional service I received. Paul attended to our latest service call and was very prompt and efficient. I highly recommend Maertin Heating & Cooling for all your HVAC needs.
Service has everything to do with who you choose for your heating and air-conditioning. Scott and his team are like family to us, they have come to the rescue quite a few times over the years. Scott has always gone out of his way to help us with advice, making adjustments, and servicing our HVAC systems.
I have used this company for many years and I am completely satisified with their excellent customer service and relations, on time for call, highly knowledgably about my system and its history!
Responsive, professional and efficient!
Rob was very nice and Patient, informative, and we got Same day service for no extra cost. I will Recommend you always.
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Price
Bar = middle half of what customers paid · gold mark = category median.
Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| HVAC system maintenance | 41 | $37–$264 |
| A/C system maintenance | 40 | $39–$318 |
| Heating system maintenance | 31 | $37–$317 |
| Heating system installation | 29 | $1.4k–$2.8k |
| Heating system repair | 29 | $78–$745 |
| A/C system repair | 25 | $216–$611 |
| Install AC | 24 | $1.6k–$3.2k |
| Install thermostat | 16 | — |
