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%97+52.9Reliability 24%96+23.3Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 97Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.97SCOREZark Heating & Cooling Inc.
Joliet, IL · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #2Position by Experts Score among all companies we track in this category. of 10 boiler installers · 5.0★ from 891 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: reliability.
Reviews for your job
Customers hired Zark Heating & Cooling Inc. for 8 kinds of job.
Zark Heating & Cooling Inc. for HVAC duct & vent installation
Clear ✕All 10 Google reviews tagged “HVAC duct & vent installation”
Had a new AC installed by Zark and what great company to work with. Rob and Zach did an amazing job on the install. It all starts with when you call, to the technician and to the install they keep you informed all the way through. Highly recommend them for your HVAC needs.
Always great service in a timely manner. Everything from maintenance, emergencies to new duct work. Zark has done it all for us and we’ve always been pleased!
We use Zark at our home and office. They are always friend and do great work! They have done many different things, from installing a hot water heater to put in a house humidifier.
We have used ZARK every time we have had any HVAC needs. We have also referred them to family and friends. They have never disappointed. They go above and beyond for their customers especially when there is an HVAC problem during severe weather. They are a family owned business who are trustworthy and fair. All around great people who do great work!
Courteous and attentive. Wrote down copious notes during the estimating phase. We were confident in their work! Exactly on time to start and finished same day. A pleasure to work with !
Dan and Keith were amazingly friendly, professional, and reliable. They were on time, courteous, and knowledgeable! Finished our install in less time than quoted. Definitely recommend Zark for HVAC! Excellent work!
I would highly recommend them. I had no heat, called them, they came out next day with a price for a new unit and the next morning installed it. Nice people and best of all no problems with anything which is definitely a pleasant surprise nowadays. Great business, people, price, service!
I am very impressed with my new furnace and I am especially very impressed with Dan the young man who installed it, he was very informative and when I have to replace my air conditioner I will most definitely call you back. I want Dan for all my service calls.
Dan did a great job replacing our dryer vent and explaining the repairs. I recommend this company to anyone needing vent or duct work.
Rating only, no written review.
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 | 144 | $37–$264 |
| HVAC system repair | 93 | $145–$618 |
| Heating system installation | 75 | $1.4k–$2.8k |
| Install AC | 73 | $1.6k–$3.2k |
| Heating system maintenance | 67 | $37–$317 |
| A/C system maintenance | 66 | $39–$318 |
| Heating system repair | 63 | $78–$745 |
| A/C system repair | 45 | $216–$611 |
