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%92+50.2Reliability 24%91+22.1Value 14%100+14.1Replies to reviews 7%67+4.7Craft & service penalty98−0.2Experts Score= 91Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.91SCOREService 1 Plumbing, Heating & A/C, Inc.
Joliet, IL · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #8Position by Experts Score among all companies we track in this category. of 10 boiler installers · 4.9★ from 983 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: value and momentum; weakest: replies to reviews.
Reviews for your job
Customers hired Service 1 Plumbing, Heating & A/C, Inc. for 8 kinds of job.
Service 1 Plumbing, Heating & A/C, Inc. for heating system installation
Clear ✕All 75 Google reviews tagged “Heating system installation” · showing 40
Service One installed my system 11 years ago and has taken great care of it ever since. I would not go with anyone else. All of the technicians that have come out have been polite, courteous, and professional. 9/5/26: John came out to replace a capacitor and some wiring due to a hungry mouse who had its last meal. Work was completed efficiently.
Great company! Fair pricing, no pressuring by technicians, honest and prompt communication.
Had yearly routine maintenance done on my trane furnace, Vance did a great job discussing and showing with pictures of what he had cleaned and serviced!!! I asked him about possibly replacing a water valve running to my humidifer for water flow as it had a very very slow drip leak(thought valve was bad)....Vance…
Everything
Very professional. Neighborhood business. I will continue to use them when I have my furnace installed.
Tecs Randy and Alex were both very pleasant and polite. They answered all my questions and did a wonderful and professional job installing my heating and ac. I highly recommend Service One.
Great job on the new A/C & Furnace install. Quick, professional, and everything works perfectly. Highly recommend!
We are so happy with the men that handled the work done. They replaced an air conditioner and a furnace yesterday. The office contacted us more then once as the guys were on their way and Erin called to advise us that they were on their way. They arrived at 830am. They told us 830-10 and were promptly on time.…
Randy and Caesar were great. Job well done!!!
Technicians were extremely professional and thorough. They were courteous and respectful of our home. They were able to answer any and all questions and explained what they had done. I would definitely recommend.
We had a great experience! They were very responsive from first point of contact. Branden came out to do the estimate and answered all my questions even when I called him back during non business hours on a Friday! He was very professional and kept me informed every step of the way. They were able to get my new…
They were punctual, courteous, clean, professional, polite! The best service! They explained everything and went over everything they did to make sure I understood it! I will definitely recommend them!
They were very quick to service our broken heater in December. So, it was a no brainer to schedule an AC inspection and cleaning in the Spring. Brandon was very respectful of our property and told us what he did and what we can expect coming up.
I love everything about this company. They are the best . Mr. Vance was polite , topnotch salesman . No pressure and straightforward deal maker . Installers Erick and Caesar were knowledgeable. Answering all questions I had. They took good care my needs. They were punctual took care all the cleaning so well.prices…
Guys were on time and very professional. Nice clean installation. No games with pricing or add-ons. The final price was exactly as quoted.
Replaced and installed a new furnace. Was friendly and efficient. Answered all of our questions. Highly recommend
This review is to compliment Service 1 Inc and the installers on their excellent work done for me. I requested service for a crew member to check out the furnace and thermostat. Brandon was extremely professional and knowledgeable, and quoted me a price for a new furnace, HVAC , and humidifier. From beginning to end…
I called Service1 on Dec. 23 because my furnace was not working, it was -37 degrees outside. They responded that evening! The representative Brandon walked into my freezing house with two space heaters because he said he knew the house would be cold. He was professional, courteous, and extremely knowledgeable.…
Jim was fantastic to work with. Very professional. Highest recommendations.
Aaron called ahead to let me know he was on his way and was very polite and professional. He removed my old furnace and installed the new one in less time than I was originally told it would take. He answered all my questions and explained all the details of the new furnace. It works great. 10 out of 10 would recommend. Thanks Aaron!
I had a new furnace AC unit and water heater installed. Installers were on time, layer out tarps to protect my flooring. They did the work in a professional and timely manner. Everything looks good and is working as expected. Would recommend there services to anyone.
Highly recommend Service 1! Our salesman Branden was knowledgeable, professional, and patient with the many questions we had regarding the products we were considering. His follow-up was impeccable. The office staff was friendly and helpful. Their installation team was exceptional. They were on time, efficient, and…
I have had 3 new complete Furnace & AC units replaced in the last 3 years by Service 1. Every time they were there quickly, provided a competitive estimate, and installed all in the same day! Highly recommend them!
The guys that came out were polite and worked a long day on a very old and difficult AC/Furnace change out. They came out the day after the AC system went down, on the hottest day of the year, and worked 10 hours to make sure we didn’t have to go another night without AC. Can’t thank them enough! They also did a few…
Excellent job, the men were on time very friendly, they cleaned up everything and explained how the system worked. I give them 4 Stars out of 4 😃👍
Quick, no hassle install of 2 furnaces. Cleaned up afterwards and very professional. Highly recommend them for heating needs.
Although we had used Service 1 for both plumbing and HVAC maintenance before, it was our first time having them replace a furnace and the experience was honestly one of the best I've ever had. Service 1 was on time, the team was professional and courteous, and most important, they removed our 20 year old colossal…
Technician was on time, even a little early...went about his routine and tested my unit and explained the problem. Was not pushy nor did he try to sell me a new unit. Our our heating system is 20 + years old and we asked for an estimate to replace ..he took pictures and measurements for replacing out existing…
Was professional. Clear on issues. Explained nessacary cost. Wonderful service. Thank you Branden!!! And install guys Randy and Evan were awesome. Fast professional and cleaned up
Service 1 came out and gave me a quote then installed a new furnace and air conditioner within a few hours. The team was prompt and professional. Highly recommend.
We got a new Trane furnace and AC system installed by Service 1. The two-person crew worked hard and did it all in one day, with great communication and professionalism. We were delighted with their work, and also their clean-up at the end!
They are a very reliable and trustworthy company. I’ve used them for years and they have an excellent and knowledgeable team.
Randy and Evan did a great job. Very hardworking, professional and on time. Thanks guys for all your hard work.
The guys showed up on time. Installed the Heating system, willing to show me what I need to know about the new unit. They removed the old unit and keep everything clean.
Randy who installed the new furnace was amazing! He laid down tarps on the floor and was very professional. I was sticker shocked at the price of a new furnace but that’s life. Would recommend using Service 1, but would have received more bids if the furnace didn’t go out when it was 5 degrees outside.
I called to schedule an appointment , they came out that morning, diagnosed the issues AND replaced the furnace and AC that day! Very professional and answered any questions. These guys were great!
Technicians/installers Randy and Evan were very timely and efficient in installing our new heating system. Very courteous, very patient, very professional. They did a great job!
They were very professional, timely, and very thorough throughout! I would use them again
Consistently great service, always professional and thoroughly explain things. Have used Service 1 for heating, cooling and plumbing over the years. Wouldn't consider using another company.
Randy was very professional and great. I would definitely recommend him.
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 |
|---|---|---|
| Heating system installation | 75 | $1.4k–$2.8k |
| Install AC | 65 | $1.6k–$3.2k |
| HVAC system maintenance | 45 | $37–$264 |
| A/C system maintenance | 44 | $39–$318 |
| Heating system maintenance | 42 | $37–$317 |
| A/C system repair | 33 | $216–$611 |
| Heating system repair | 28 | $78–$745 |
| Install thermostat | 22 | — |
