Your ductwork carries heated and cooled air into every room, but most of it stays hidden behind walls or up in the attic. Over time, dust and debris can collect inside, connections can loosen, and older duct layouts may no longer suit your home's heating and cooling needs. Sometimes a cleaning is worthwhile. Other times, the answer is sealing a leak, repairing a damaged section, or installing new ductwork altogether.
CityLine Air Conditioning provides air duct cleaning, duct repair and sealing, and ductwork installation and replacement throughout Dallas-Fort Worth. We inspect the system, identify what needs attention, and explain your options before recommending work. Whether you're dealing with dusty vents, uneven temperatures, or planning a home renovation, we'll help you find the right solution.
Seeing dust on furniture doesn't automatically mean your ducts are dirty. It can come from outdoors, worn filters, or other sources inside your home. Cleaning makes more sense when there's substantial debris inside the ducts, particles coming from registers, or signs of pest contamination. We look for evidence before recommending the service.
Is one room getting less air than the others? A loose attic connection, damaged flex duct, or unsealed joint may be sending conditioned air where it doesn't belong. Targeted duct repair and sealing can address those gaps without replacing the entire system. We check what's damaged and whether airflow improves after the work.
Planning an addition or replacing old HVAC equipment? Your duct layout may need to change too. New rooms require a way to receive and return air, while severely damaged or poorly sized ducts may need replacement. We review how the home is arranged before recommending new runs instead of patching over a larger problem.
Not sure which ductwork service your home needs? Call (972) 776-4455. Let our duct specialists assess the problem and help you decide whether cleaning, repair, or replacement makes sense.
These signs are a starting point, not a diagnosis. A weak vent could involve ductwork, the air filter, or the HVAC system itself.
| What you're noticing | What could be happening | What to check first |
|---|---|---|
| One bedroom is always warmer or colder. | A kinked or disconnected duct, an airflow restriction, or a balancing issue. | Inspect the affected run and check airflow before deciding on repair. |
| Dust appears near certain vents. | Household dust, return-air leakage, or debris in the duct system. | Check the filter and inspect for leaks or significant buildup before considering cleaning. |
| You can see a loose or torn attic duct. | Conditioned air may be leaking into the attic. | Consider reconnecting, sealing, or replacing the damaged section. |
| You find signs of rodents or insects. | Pests may have entered the ductwork and damaged or contaminated it. | Address the infestation and entry points first, then assess cleaning or replacement. |
| The AC runs longer and comfort is getting worse. | Leaking ducts, poor insulation, or an HVAC performance issue. | Check both the equipment and accessible ductwork rather than assuming one cause. |
| You're renovating or adding a room. | Existing duct sizes and routes may no longer suit the layout. | Review duct sizing, supply and return airflow, and the proposed equipment. |
The price often comes down to what's happening in the attic. A disconnected duct that needs fastening and sealing is one thing. Replacing brittle runs across several rooms is another. With duct cleaning, the amount of debris, the duct material, and access to the system all affect the work involved.
We charge an $89 diagnostic fee, waived when the approved repair is completed on the same visit. Cleaning and replacement are priced according to the actual scope of work. We'll show you what needs attention, separate necessary work from optional improvements, and explain the costs before you approve anything.
We charge an $89 diagnostic fee, waived when the approved repair is completed on the same visit.
of the air moving through a typical home's duct system can be lost through leaks, holes, and poor connections, according to ENERGY STAR.
There's an advantage to having the same company handle your ductwork and heating and cooling equipment. We understand how the blower, return air, and duct layout affect one another. That matters when a duct modification could change how the entire HVAC system performs, not just the airflow at one register.
Good ductwork doesn't need replacing simply because it's old. We look at which sections can remain in service and where new materials would make a difference. If the main trunk is sound but two branches are damaged, there's no reason to treat the entire attic as a replacement project.
Attics aren't exactly convenient places to inspect yourself. Our technicians document accessible problem areas with photos, explain the materials and work involved, and provide written pricing. Whether we're cleaning ducts, sealing connections, or installing new runs, you'll know what's included before authorizing the job.
The first call helps us determine what kind of visit to arrange. A renovation involving new ductwork requires different preparation than an urgent repair or a routine duct cleaning.
Your technician examines accessible supply and return connections, duct routing, and material condition. For new installations, the assessment also considers each room's airflow requirements and the existing HVAC equipment.
You'll receive a clear explanation of the proposed cleaning, repairs, or installation. Replacement plans account for duct sizing, routing, insulation, and connections to the existing system.
Once approved, the crew carries out the service and checks the relevant connections and system operation. Before leaving, your technician reviews the completed work and explains any remaining concerns.
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No cooling or no heat? Call (972) 776-4455, day or night.
Maybe you're buying an older house and want the ducts checked before moving in. Perhaps a contractor found damaged flexible ducting while working in the attic. Or you're planning a renovation and want to understand the ductwork involved before construction begins. Whatever brought it to your attention, call (972) 776-4455 and we'll help arrange the appropriate visit.
Keep them handy. Photos of accessible duct damage, floor plans, or drawings for a proposed addition can help us understand the project before your appointment. There's no need to climb into the attic to collect anything.
Tell us if you're scheduling an HVAC replacement, ceiling work, or a renovation. Duct installation may need to happen at a particular stage of the project, especially before walls or ceilings are closed.
4.7stars on Google reviewsNeed ductwork cleaned, repaired, or installed? Call (972) 776-4455 or request ductwork service online.
Ductwork needs vary across North Texas homes. Older properties in Richardson and Hurst may have duct systems that have been modified several times, while renovations in Plano, McKinney, and Frisco can call for new supply and return runs. In either case, the goal is to make sure the ductwork suits the home's layout and heating and cooling equipment.
CityLine Air Conditioning provides residential duct cleaning, repair, sealing, and installation throughout its DFW service area. For Dallas and Fort Worth addresses, availability depends on the ZIP code. Call (972) 776-4455 to confirm coverage.
Our Service Area
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The technicians were professional and very knowledgeable. We had our AC serviced, new Gas Furnace installed with air purifier, and also had our air ducts cleaned. I would go to CityLine first before any other company!
Kyle Cooper
The technician, Alberto, arrived on time, knew the equipment he was working on, was very professional, and was happy and very thorough.
Alann Nevarez
They contacted us in a timely manner, were on time for the service call and took care of the issues.
Jeffrey N.
Alberto Nevarez was great. Helped inform us of everything we needed to know plus extra. He went above and beyond to educate us as new home buyers of our systems and needed maintenance. 10 out of 10 would recommend
Tony A.
CityLine came to my home to check my unit for heating for this winter and were excellent. Technician Jay Jones was superb! He explained in detail everything he reviewed and gave me confidence in the service provided. 10/10! Would recommend to everyone!
Ryan F.
Travis came by to do a check up on the system. He's very courteous and friendly. All is well with the system.
Adrien C.
May 5, 2026You might not think much about dust. It gathers on shelves, settles on furniture, and seems like nothing more than a minor household annoyance.
May 4, 2026It’s 2:00 PM on a July afternoon in Dallas-Fort Worth. The thermostat reads 97°F outside, and you just realized your AC is not turning on.
May 4, 2026You’re sitting in your living room when your air conditioner kicks on and something sounds… wrong. Maybe it’s a metallic banging that wasn’t there last week.
Cleaning handles heavy debris inside the ducts. Repair handles tears, loose runs, and leaking joints. A dusty room or weak vent alone doesn't tell you which; an inspection does.
Not reliably. Cleaning removes debris from dirty ducts, but filters, outdoor air, and daily life add dust too, and the EPA hasn't found it prevents health problems.
Yes. A gap or disconnected branch can keep cooled air from reaching a room, especially through a hot attic. Blocked vents and equipment problems can look the same.
It can, when the leaks are significant. Sealing cuts wasted heating and cooling, though savings depend on your home and how leaky the ducts were.
Often. A loose connection or a small damaged section can be fixed on its own, but a crushed, badly torn, or brittle run usually needs replacing.
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