Analyzing 9,863,3979.9M ReviewsFor 27,77127.8K Experts

Experts Reviews · Company report
Service 1 Plumbing, Heating & A/C, Inc. logoHow 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.91SCORE

Service 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

📞 Call (815) 859-8299Request a call backWebsite ↗

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.

SatisfactionSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Service 1 Plumbing, Heating & A/C, Inc. is better than 92% of boiler installers.A
92
ReliabilityReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Service 1 Plumbing, Heating & A/C, Inc. is better than 91% of boiler installers.A
91
Craft & serviceCraft & service · 0% of the scoreGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Service 1 Plumbing, Heating & A/C, Inc. is better than 98% of boiler installers.A
98
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Service 1 Plumbing, Heating & A/C, Inc. is better than 100% of boiler installers.A
100
MomentumMomentum · 0% of the scorePenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Service 1 Plumbing, Heating & A/C, Inc. is better than 100% of boiler installers.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Service 1 Plumbing, Heating & A/C, Inc. is better than 67% of boiler installers.B
67

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 HVAC duct & vent installation

Clear ✕
Jobs reviewedHow many Google reviews are tagged with this job.7
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).5.00
Usually paidThe price range customers picked most often for this job.—
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 92/100.How Job match is calculatedBuilt only from reviews Google tagged “HVAC duct & vent installation”:Stars on this job 55%Number of such jobs 25%Overall Experts Score 20%Stars are pulled toward the category average when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.#3 / 5

All 7 Google reviews tagged “HVAC duct & vent installation”

RandyLocal Guide · 51 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited 2 months ago★★★★★

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.

HVAC system maintenanceA/C system maintenanceHeating system repair+ Responsiveness+ Punctuality+ Quality
CarolynLocal Guide · 18 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited a year ago★★★★★

Very professional. Neighborhood business. I will continue to use them when I have my furnace installed.

Great priceHVAC system maintenanceHeating system installationHVAC duct & vent installation+ Responsiveness+ Punctuality+ Quality
Mary1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

Both technician and installer extremely professional and effient. Price for new A/C higher than expected but appreciate the quick and reliable service!!

Not sureHVAC duct & vent installation
Hugo1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited a year ago★★★★★

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!

HVAC system repairHVAC system maintenanceA/C system maintenance+ Responsiveness+ Punctuality+ Quality
CEO1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 4 years ago★★★★★

The techs arrived promptly on time and kept me posted along the way. They answered my questions with out making me feel like a pest. Great job

HVAC duct & vent installation+ Responsiveness+ Punctuality+ Quality
GregLocal Guide · 50 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 4 years ago★★★★★

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…

Install ACHVAC duct & vent installationHeating system installation+ Responsiveness+ Punctuality+ Quality
Steve1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 6 years ago★★★★★

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.

A/C system maintenanceHVAC duct & vent cleaningHeating system maintenance+ Responsiveness+ Punctuality+ Quality

Price

$283+24% vs typical boiler installers

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.

Great price 24%Reasonable 65%Overpriced 6%Not sure 4%

Jobs customers hired them for

JobReviewsCategory typical
Heating system installation75$1.4k–$2.8k
Install AC65$1.6k–$3.2k
HVAC system maintenance45$37–$264
A/C system maintenance44$39–$318
Heating system maintenance42$37–$317
A/C system repair33$216–$611
Heating system repair28$78–$745
Install thermostat22—

Compare with

Windy City HVAC Repair logoWindy City HVAC RepairExperts Score 99Joliet · 4.99★Zark Heating & Cooling Inc. logoZark Heating & Cooling Inc.Experts Score 97Joliet · 4.97★Rousculp's Heating and Cooling logoRousculp's Heating and CoolingExperts Score 96Joliet · 4.98★