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 20
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!
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 | — |
