In every commercial HVAC system in Connecticut, the coils do the main job. The evaporator coil inside the air handler cools the air, while the condenser coil outside releases heat. If either coil gets covered in dust, pollen, grease, or mold, the system has to work harder, costs more to run, and provides lower air quality, no matter how new the equipment is or how clean the ducts are.
Commercial coil cleaning means thoroughly cleaning the coils, as well as the condensate pans, drain lines, and the inside of the air handler. This is one of the best maintenance investments for a commercial building, but it is often overlooked because a dirty coil does not cause obvious problems. Instead, it slowly increases costs each season.
Dependable Duct Cleaning is a family-owned business in Southbury, Connecticut. For over 28 years, we have worked on commercial air systems throughout southern and western Connecticut. We hold OSHA 10 and NADCA certifications for commercial work and have an A+ rating with the BBB. Unlike companies that mainly do residential jobs, we focus on offices, restaurants, multi-family buildings, medical spaces, industrial facilities, and property management portfolios.
Coil cleaning is a main part of our work, not just an extra service. We see the coil as part of the whole air system, from the return ducts through the air handler to the supply side. Cleaning only part of the system does not give a complete result.
Satisfaction Guaranteed
Get your free, on-site coil assessment from a local, family-owned team serving Fairfield, Litchfield, and New Haven Counties. We’ll look at the job before we quote it.
We serve commercial properties across three Connecticut counties, with a dedicated page for each:
Offices, retail, restaurants, and multi-family from the coastal corridor inland.
Town centers, inns, and Route 8 valley industry across the northwest hills, every town in the county.
Our home county, from Southbury headquarters to the Naugatuck Valley and the shoreline.
If you are not sure which page applies to you, do not worry. One call to (203) 364-1950 connects you with our team.
The only duct cleaning company that actually came and looked at the job before providing an estimate. In a business that has too many unethical players, I felt like I could trust Sal and his team. They were neat and thorough, and while the price was a little higher than others, I got full value for what I spent.
Sal explained everything in detail and answered all of my questions. The crew was on time, professional, and did a great job. My ducts had a musty smell and I was waking up stuffy every morning — that's completely gone now. I'll be hiring them again next year.
The best in the business. We've had them out twice in the past three years and they do an incredible job. Very professional, very personable, and the work speaks for itself. You would be missing out if you didn't hire this company.
They were polite, considerate — offered to remove their shoes — on time, efficient, and knowledgeable. No high-pressure sales, just great work from start to finish. I always refer them when someone asks.
The full-depth cleaning of the evaporator and condenser coils in a commercial HVAC system, plus the condensate pans, drains, and air handler surfaces around them. The coils are where heating and cooling actually happen, and buildup on them raises energy costs, strains equipment, and degrades indoor air.
Ducts carry the air; coils condition it. We clean both, usually in the same visit, because the two share the same air and cleaning one without the other gives a short-lived result.
Annually before cooling season for most properties. Restaurants, industrial facilities, shoreline buildings, and other high-exposure sites often need twice-a-year service. The free on-site assessment settles it for your building.
Yes. OSHA 10 and NADCA-certified, with over 28 years serving Connecticut commercial properties.
It depends on unit count, coil condition, and access, which is why we quote from an open air handler at your property instead of over the phone. The assessment is free either way.
No matter where your building is in our service area, the first step is always the same. A technician will open your air handler, show you the condition of your coils, and give you an honest evaluation with a clear price. We do not give phone quotes or use high-pressure tactics, and you will get documentation for your records after the work is finished.
