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 maintenance
Clear ✕All 42 Google reviews tagged “Heating system maintenance” · 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.
Wonderful, they are very knowledgeable and customer friendly. John is excellent, thorough, patient, and wise.
Always a great experience with Service 1! I recommended them to my son and daughter and now they feel the same way! Branden was thorough and knowledgeable. He answered all my questions. Great job!
Everyone we've dealt with has been amazing! We have used Service 1 for plumbing and HVAC both and have been so impressed!! I recommend them 100%! Every technician has been so professional, cost efficient, and extremely knowledgeable. I would recommend Service1 to everyone!
Branden was outstanding. Very knowledgeable, courteous and professional. We just switched companies to service our hvac needs and are glad we did.
Well done job
Branden Schuster just came to our house and he was AMAZING! We are new homeowners and have no idea what is what. He was so through and he even explained each part and what they did, how they function, etc. AND he saved us $800 from an Air Duct company who said we had mold when there was none! HIGHLY HIGHLY RECOMMEND!!!
The young man was very polite and professional.
Brandon was very nice and professional. He made sure I understood everything he was going to do and provided prices before hand. I definitely recommend Service One!
I had Service One inspect my furnace for an annual checkup The technician was knowledgeable, helpful, and honest. I've had bad experiences in the past with HVAC technicians from other companies but Service One was a breath of fresh air. Will definitely use them in the future.
I had a basement hot water copper pipe and a water heater pressure relief valve water leak. Called Service 1 plumbing & heating and got me on the schedule quickly. Service plumber "Al" came on time, replaced the hot water pipe, pressure relief valve, and expansion tank in 1 visit. He was quick (1.25Hrs),…
The technician installed a new humidifier into the furnace made adjustments, and corrected previous electrical hookup, cleaner both furnaces, was extremely knowledgeable, professional and polite, we will definitely keep this company in our contacts for future maintenance.
This is the first time that we used Service1 but we were impressed. We have a top of the line Infinity Carrier system that was due for a clean and check. The furnace was vacuumed, the burners were cleaned, and the drainage lines were cleared of any blockage. A problem with the inducer bearings was identified too.…
We have had a great experience with our heating and cooling. Service One has been timely and thorough. Technicians are polite and respectful of our home too.
As always Service 1 is efficient , timely and professional. They are highly recommended.
I just bought my townhouse so they were very helpful in helping me understand my ac and furnace a little better to make sure they last longer and run better.
Furnace would not heat above 62. Called on a Sunday morning and explained my problem to Jim. He had it diagnosed as soon as I said I had a Nest thermostat. With his perfect instructions I had it rewired in about 15 minutes. He had Mike come by on Monday to double check. Problem was the installer for the Nest…
I have used them several times and am very pleased with the service. All of the techs have been very polite and addressed any questions I had in great detail.
Mike from Service 1 was extremely friendly and professional. He arrived right on time, patiently listened to my description of the problem, thoroughly explained every thing that he was doing and did a terrific job fixing the problems. He also politely explained a few things and made additional recommendations…
Mike came out and repaired our furnace. He was professional and fast. Thanks Mike!
Knowledgeable tech that was on time, professional and explained everything.
Technician called prior to appointment was on time worked quickly and efficiently reviewed findings and very much a professional great representative for Service 1 inc!!!! Will be a repeat customer 👍🏼👍🏼
Vance was awesome. We’ve used them for years. New furnace and air conditioning installed by them over the years. Eric and Jim have done those installs. Great job to all.
They have always been reasonably priced. Quick to come out. Their estimate and final bill have always either been the same or one time less than the estimate. I highly recommend them toanyone that has heating or a/c problems.
I highly recommend Service1. We have been using them for a few years now and they are always on time, professional and reasonably priced. They have never over charged us, even for emergency last minute calls and they have always done quality work.
Technician was on time for appointment, very knowledgeable and resolved issue quickly. Highly recommend!
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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 |
|---|---|---|
| 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 | — |
