HVAC reviews in Alsip, Illinois

Paul is extremely assistive and charges fairly. His services meet my expectations thoroughly.

Always reliable, offers great value, this business prioritizes customers' needs and consistently delivers.

Paul is extremely reliable and accommodating for my elderly mom, visiting her home multiple times to help with heating and cooling issues. He's consistently professional, prompt, and fair in his pricing. Paul provides top-notch service that I highly endorse.

I've relied on Grel Heating and Cooling for over a decade, impressed by their family-run business that handled everything from routine upkeep to a complete new system installation. Their service was top-notch and always timely.

I highly praise Grel for their exceptional service after replacing my 30-year-old AC unit. They were polite and efficient throughout the entire process, with a quote that was remarkably affordable. Unlike other companies, I didn't encounter aggressive sales tactics pushing unnecessary upgrades on me. Instead, they focused on delivering quality work, just in time to prevent a heat wave from hitting during installation. Their attention to detail is impressive - they even adjusted my hvac drip pipe, eliminating the tripping hazard that was causing inconvenience while doing laundry.

I hired Grel Heating to investigate an unusual gas smell coming from my exterior vent in December. Nicor Gas confirmed the presence of high levels of carbon monoxide, which was alarming. The technician advised turning off the furnace until it was serviced. A ticket was written and I was instructed to show it to Grel Heating, but their representative Robert found everything fine and downplayed the issue, claiming normal carbon monoxide emissions from furnaces weren't a cause for concern. Despite his dismissal, I still felt uneasy about the persistent smell emanating from the vent. Thankfully, another heating company quickly assessed the situation and expressed serious concerns over the odor, diagnosing a cracked heat exchanger that necessitated immediate furnace replacement. Needless to say, I'm extremely dissatisfied with Grel Heating's handling of this critical issue and would not recommend them to anyone.

Pawel and his team have been our trusted HVAC specialists since 2005. They've installed a new furnace, AC unit, and handled various maintenance and repairs with ease. The crew is professional, courteous, and extremely knowledgeable in HVAC work. I wholeheartedly endorse them for all your heating and cooling needs.

We've had problems with our air conditioning since May and had multiple technicians from different companies come out, but the experience with Jack from [Company Name] was vastly different. He took our concerns seriously from the start, treated us like valued customers, and went above and beyond to fix the issue. His diagnosis was spot on, explanations clear, and he followed up promptly to install the necessary part. Since his repair, our AC has been working much better than when it was new. Jack's exceptional professionalism, attention to detail, and genuine care for customers make him stand out from others.

They provided excellent service as part of our yearly maintenance plan. When my furnace failed on the coldest night of the year, a technician visited promptly and fixed it temporarily until the next morning. Installation of a new furnace followed quickly. As non-members often do, we waited longer for help. However, these technicians were punctual, considerate, and left the area spotless - even taking care to cover their shoes. Their professionalism made all the difference.

We hired Doornbos to install our furnace in the Spring of 2023. When we started using it this winter, it let out a high-pitched whine through the vents that was unsettling. We called them back and sent someone over to take a look. The young technician said he could fix the problem by drilling into the ductwork and installing a new vent. However, since our furnace already had a vent in place, we weren't convinced it would work. He did clean and check the furnace anyway. Fast forward to Fall 2025, when another company came out to inspect our furnace for the winter. The more experienced guy heard about our issue and took care of it by cleaning and adjusting the unit. When he turned it on, there was no more high-pitched sound - it's incredibly quiet now. We're not impressed with Doornbos' techs; they seem inexperienced. They know how to do routine maintenance work, but troubleshooting is beyond their skillset.

Ross delivered a top-notch experience - he was super professional, kept me in the loop, and gave it to me straight about the needed fixes. He explained what could wait and what couldn't, which put my mind at ease. I'd wholeheartedly recommend Doornbos for any HVAC work.

We've had our fair share of heating woes, but Doornbos finally stepped up to the plate when another company left us high and dry with a faulty gas valve replacement that ended in a small explosion and gas line fire at 5:30 a.m. The culprit was an outdated valve they couldn't find. We shopped around for quotes on a new boiler and were thrilled to find Doornbos willing to install one within three days, even if their price was slightly steeper than the others.

In contrast, Anthony, Tony, Tim, and Chris got it right from the start. They expertly installed our Burnham BRNX Boiler 70,000 BTU system in just one day and made sure we understood how it worked. The quiet operation and excellent heat delivery have been a welcome relief. However, there's an issue with the Honeywell thermostats – they're off the mark with temperature readings.

Anthony acknowledged this problem and promised a different replacement if needed after a few weeks. Despite this hiccup, Doornbos has earned our gratitude for being available when other companies were too busy or unreliable. It's clear you get what you pay for here, but their commitment to customer service has made all the difference in our experience.

We were pleasantly surprised by the quick response to our initial inquiry. Jack arrived promptly on the scheduled day and communicated effectively throughout the appointment process. He was courteous, knowledgeable, and efficient in his work. The repair was completed quickly and efficiently, with a minor replacement done on-site. Recommendations for future maintenance were made and explained clearly. Overall, we felt confident in their expertise and will definitely be using them again in the future.

We've consistently been pleased with the Doornbos team's performance. Recently, Joyce from the front office and Jimmy, the HVAC technician, provided excellent service, handling our scheduling and furnace maintenance with courtesy, knowledge, and professionalism. Thanks for a job well done!

The tech was genuinely nice, got the job done quickly, and finished up sooner than I thought. Overall, a great experience that earned my strong endorsement.

I was impressed with Doornbos's efficiency and customer service. After a frustrating delay with another company, we switched to Doornbos and were pleasantly surprised by the rapid response time - just 2 hours after calling. Our technician, Dino, was courteous and thorough in his work and explanations. The difference is clear: this company prioritizes its customers' needs.

I had a great experience with this company, they were extremely thorough and knowledgeable about fixing the problem I was having, it turned out perfectly.

Doornbos has taken over our heating and air services since their acquisition of the original installer. They're reliable, expert, and punctual. The recent duct cleaning was impressive - the team was meticulous in their approach.

I've relied on Doornbos for both office and home maintenance for over 15 years. Their response times are always fast, staff is courteous, and job quality is consistently high. They're a trustworthy choice for all your heating, ventilation, and air conditioning services.

We purchased our new furnace from Doornbos and had an excellent experience. The staff, including the friendly office ladies, Mike the technician, Anthony the sales rep, and Chris the installer, were all very knowledgeable and courteous. The installation was completed quickly and efficiently, and everything is working properly now.

I had a mostly positive experience with this company, thanks to the friendly and efficient staff. Scheduling appointments was a breeze, and I never encountered any delays.

However, things took a turn for the worse when our technician installed a new blower motor. The issue seemed to be with this installation, as evidenced by a note on the invoice stating that the heat exchanger was deemed fine at the time of inspection.

Despite initial assurances from a senior tech that the problem had been fixed, I continued to experience issues with my floors and walls vibrating whenever the heat was running. A second visit revealed that the issue persisted, and it wasn't until a scheduled maintenance appointment that the original technician suggested leaving the blower motor alone due to the potential expense of repairing it.

The next day's visit only confirmed my worst fears - the senior tech admitted that they had botched the installation and that the heat exchanger was cracked. I'm now facing a hefty bill for a new furnace, just weeks after being told it was in good condition. The botched installation has left me feeling frustrated and disappointed with this company's workmanship.