Experts Reviews · Company report
Maertin Heating & Cooling 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%96+52.4Reliability 24%94+22.8Value 14%100+14.1Replies to reviews 7%58+4.1Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.93SCORE

Maertin Heating & Cooling

Joliet, IL · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #7Position by Experts Score among all companies we track in this category. of 10 boiler installers · 5.0★ from 351 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: 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.Maertin Heating & Cooling is better than 96% of boiler installers.A
96
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.Maertin Heating & Cooling is better than 94% of boiler installers.A
94
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.Maertin Heating & Cooling is better than 100% of boiler installers.A
100
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.Maertin Heating & Cooling 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.Maertin Heating & Cooling 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.Maertin Heating & Cooling is better than 58% of boiler installers.C
58

Reviews for your job

Customers hired Maertin Heating & Cooling for 8 kinds of job.

Maertin Heating & Cooling for HVAC system maintenance

Clear ✕
Jobs reviewedHow many Google reviews are tagged with this job.43
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).4.98
Usually paidThe price range customers picked most often for this job.$100–200
Category typicalWhat the middle half of customers paid for this job across all companies in the category.$37–$264
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 86/100.How Job match is calculatedBuilt only from reviews Google tagged “HVAC system maintenance”: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.#7 / 10
Said fairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”.100%

All 43 Google reviews tagged “HVAC system maintenance” · showing 20

Matt5 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. · 3 months ago★★★★★

We have been regular customers ever since another HVAC service tried to convince my wife that he thought he heard a bearing going out. (She wasn't buying what he was selling.) We had a lot of bearings in our farm machinery when I was growing up, and I knew very well what a bad bearing sounded like and that wasn't…

Reasonable priceHVAC system maintenanceA/C system maintenanceHeating system repair
Mary11 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 3 months ago★★★★★

No air conditioning in the house Maertin Heating were able to come and determine the fan on furnace needed to be replaced. Since the furnace was 25 years old it was time to replace it. Interesting fact, Scott Maertin installed our furnace 25 years ago! They arrived the very next morning and installed a new furnace…

Customer photo from Mary's review
Paid $2,000+Reasonable priceHeating system repair+ Responsiveness+ Punctuality+ Quality
Pamela1 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 months ago★★★★★

I was very pleased with the service of Maertin Heating. Techs were professional and courteous. Would recommend them.

Paid $2,000+Not sureHVAC system maintenanceA/C system maintenance
Dr.4 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 4 months ago★★★★★

Always reliable and professional!

Paid $1–200Reasonable priceHVAC system maintenance+ Professionalism
Mike8 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. · 8 months ago★★★★★

Very diligent service! Always take the time to explain a issue and talk about the fix! No surprises!! Great company, great service

Paid $200–300Great priceHVAC system maintenanceHeating system maintenance
Janet15 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. · 9 months ago★★★★★

I woke up with the temperature in my house at 66 degrees. I called Maertin Heating & Cooling and Jani recommended checking the filter first. I set up a schedule to have my furnace tuned up anyway since it had not been done in years. My technician was Cristian and he was so pleasant and knowledgeable. In getting…

HVAC system maintenance
Carl3 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. · 9 months ago★★★★★

Called Martin Heating and Cooling for service and as always prompt service. They are great. Scott and his team are very trustworthy and knowledgeable. We have been working with them for as far as I can remember (years) and do not ever think to call anyone else with HVAC issues. Ended up replacing both furnaces…

Paid $1,000+Great priceHVAC system maintenanceHeating system repairHVAC duct & vent repair
Orland2 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. · 9 months ago★★★★★

Scott was very thorough with options when deciding on system. Explained everything again after install. The techs rocked out the install even on this cold day. Thanks again Scott and your staff. Even the girls in the office followed up!

Reasonable priceHVAC system maintenanceA/C system maintenance
JohnLocal 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 9 months ago★★★★★

The Maertin group is highly trained, responsive to my requests for service and pleasant to deal with.

Heating system maintenance+ Punctuality
J1 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. · 9 months ago★★★★★

Excellent professional service!

HVAC system maintenance
Sharon3 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. · 9 months ago★★★★★

I've used Maertin Heating for many years. They are friendly, knowledgeable people who are just a pleasure to work with. They are good at what they do and it shows.

HVAC system maintenance
Paul11 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. · 11 months ago★★★★★

Problem diagnosed and solved with reasonable cost

Paid $300–400Reasonable priceHVAC system maintenance
jasonLocal Guide · 29 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. · 11 months ago★★★★★

Brett H was awesome and very friendly and knowledgeable. A++

HVAC system maintenance
Laura8 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. · 11 months ago★★★★★

I can’t rave enough about how great they are. From customer service and follow up they are the best. Support local businesses!

Paid $100–200Great priceHVAC system maintenance
HannahLocal 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. · 11 months ago★★★★★

Brett was fantastic! Hardworking, friendly, and efficient. Highly would recommend!

Paid $100–200Reasonable priceHVAC system maintenanceHVAC duct & vent installation
Lori3 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. · a year ago★★★★★

Great tech that came to my home! Explained everything and answered several questions I had! Maertin came out quickly and will be a repeat customer!!!

Paid $100–200Reasonable priceHVAC system maintenance
Susan3 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. · a year ago★★★★★

Excellent service! We have used Maertin multiple times for our small business and home. They are professional, efficient and fair. I would highly recommend them!

HVAC system repairHVAC system maintenanceHVAC duct & vent installation
Peggy8 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 3 years ago★★★★★

Very easy experience from start to finish. Very professional team.

HVAC system maintenance
Kay1 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. · 3 years ago★★★★★

Brett was on time, friendly and extremely efficient. He explained fully what he did. I would definitely recommend Maertin heating and Cooling.

HVAC system maintenance+ Punctuality+ Professionalism+ Value
KB1 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. · 3 years ago★★★★★

Our home is 25 years old and we had Maertin replace our air conditioner and HVAC. They also have done work at my son and daughters houses and they always do a great job and we appreciate their service.

A/C system maintenanceHVAC system maintenance+ Responsiveness+ Punctuality+ Quality

Show more HVAC system maintenance reviews (23 more) →

Price

$423+86% 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 33%Reasonable 60%Overpriced 0%Not sure 7%

Jobs customers hired them for

JobReviewsCategory typical
HVAC system maintenance41$37–$264
A/C system maintenance40$39–$318
Heating system maintenance31$37–$317
Heating system installation29$1.4k–$2.8k
Heating system repair29$78–$745
A/C system repair25$216–$611
Install AC24$1.6k–$3.2k
Install thermostat16—

Compare with