A removed blower wheel assembly, its blades heavily coated in dark grime.

Boca Raton, FL · replacing ductwork

More tonnage won’t cool that room. The route of the air decides it.

In a Boca Raton house, long flex runs usually leave an attic air handler; in a condo, short ones leave a closet unit. Either way, a duct too narrow chokes the system, one too wide lets the air slow before it lands, and a branch that bends four times on its way to a distant bedroom won’t cool it, whatever unit feeds it.

5.0 average, 65 Google reviewsAs of See all reviews on Google

Mon-Thu 7 AM-8 PM · Fri 7 AM-5 PM · Sat closed · Sun 7 AM-7 PM · Book online 24/7

  • Florida licensed

    AC contractor CAC1822067

  • When we’re open

    Mon-Thu 7 AM-8 PM · Fri 7 AM-5 PM · Sat closed · Sun 7 AM-7 PM · Book online 24/7

  • Same or next day

    Visits planned around your week

  • 5.0 · Across 65 Google reviewsAs of See all reviews on Google

Why the duct sets the limit

Every run in your home was sized by someone.

The median Boca Raton home was built in 1983, and any duct nobody has replaced since still follows the plan drawn for the house that year. Few owners ever hear that a duct has dimensions (a width, a length, a count of bends) settled once and left alone. The cards below cover what goes wrong when that plan was off. A larger air conditioner solves none of it.

  • Undersized: the blower strains

    Your blower can move only as much air as the duct in front of it will take. Make that duct too narrow for the volume and the pressure it pushes against climbs; the unit then passes its working life battling the ductwork instead of cooling your rooms.

  • Oversized: the air loses speed

    Give air a wider duct than it needs and it spreads out and slows. By the time it leaves the register there is no push left in it; it hangs near the ceiling and dies out before crossing the room you are in.

  • Each elbow takes its share

    Air leaving the plenum loses a little pressure at every bend. Send it around four of them on the way to a back bedroom and that room stays warm no matter how many tons sit outside: too little air is arriving.

  • Routed by convenience, not design

    The original installer usually ran each duct wherever it was fastest to go. Later someone tacked on a branch for a converted garage or an added bathroom. A replacement is your one chance to plan the route on purpose.

  • Attic flex never stays where it was hung

    Flex is a wire coil inside a plastic jacket. Up in a house attic, where the long runs usually live, it droops between hangers, folds at a bend and flattens where it meets a joist. The moment a droop forms, it chokes the run.

  • Adding tonnage adds noise, not comfort

    Force extra air through the same narrow run and you get higher pressure, a louder system and the same feeble breath at the grille. Whatever the equipment makes, the duct governs how much of it your rooms get.

Planning the replacement

Five calls made before the first cut.

Tap a step to open it. Most of a duct replacement is deciding route and size; cutting and fitting is the simple part, and it happens at the end.

  1. Inspection before any talk of replacingVery often the right fix is also the cheapest.
  2. We measure your home, not the old runThe existing duct is a clue, not a blueprint.
  3. Route first, then the sizesDistance and bends cost more than you’d think.
  4. A price given on site, before work startsWe quote once we’ve seen it, not sooner.
  5. Install, then walk it with youNothing gets packed until you’ve seen it.

Step 1 of 5

Inspection before any talk of replacing

One warm room does not, on its own, justify new duct. Dust built up inside the run, a collar whose joint has split, a damper stuck in place, a section drooping in the attic: each gives the same symptom, and each costs less to put right. A customer on the Boca Raton profile saw exactly this. Their AC kept cutting out ahead of time; the technician found a ventilation blockage behind it and fixed it there and then.

Step 2 of 5

We measure your home, not the old run

We count the rooms the system must reach, measure how far away each one is, note where the air handler stands (usually the attic in a house, a closet in a condo) and check what the attic framing leaves room for. The duct in your ceiling today records one installer’s decision, not your home’s needs. Copy it, and the same weak layout comes back in new material to let you down again.

Step 3 of 5

Route first, then the sizes

Give two ducts the same width, make one short and straight and the other long with four elbows, and they behave like different ducts. So we fix the route before anything else: the line of the trunk, the rooms that branch from it, the places the returns go. Sizes are worked out from that route. This step settles whether the far bedroom ever gets comfortable. Condo runs from a closet unit are shorter, but the order is the same.

Step 4 of 5

A price given on site, before work starts

The price turns on your home’s size, how much duct is coming out and how much space the attic offers. So a technician gives you the number in person after seeing the job, before any work begins, and you are under no obligation to book that day. On the Boca Raton profile, reviewers call the cost reasonable for the service they got.

Step 5 of 5

Install, then walk it with you

Out comes the old duct, in goes the new, and the boots and registers go back in place. A person over eighteen then walks through the finished job with the technician: what got replaced, what stayed, and anything noticed along the way that you should know. Before we go, we sweep the floor and put the furniture back where it stood.

  • 42%

    Of Boca Raton homes are detached houses

    Table B25024, ACS five-year estimates for 2023. A detached house has a complete duct system to itself, planned for that house and nothing else. Another 25.9% of the city’s homes sit in buildings of fifty or more units, where a closet air handler usually feeds short runs.

  • 82.3%

    Of the city’s homes date from before 2000

    From the same Census tables. In most of the city’s homes, the ductwork was first laid out 25 or more years ago, for the building as it was then.

  • 48,811

    Homes counted in Boca Raton

    Five-year ACS estimates for 2023, from tables B25034, B25024, B25003 and B25077.

Where the crew installs

New ducts in six towns, two counties.

What we find above a ceiling (how much room the attic gives, how the old duct was laid out) shifts with the town and with the decade the building went up. Each town has a page of its own, with the housing figures behind it.

View every town we serve
The map spans Palm Beach and Broward counties; the towns we cover are highlighted.

The map spans Palm Beach and Broward counties; the towns we cover are highlighted.

Green: we serve it

Check your town

Does the crew come to you?

Home counts: American Community Survey, five-year estimates for 2023.

Proof, not just a claim

Evidence you can look up before you book.

  • CAC1822067, a Florida licence

    Held in the company’s name: a state licence of the Certified Air Conditioning Contractor type, valid until August 31, 2028. Anyone can search it by its number.

    Look it up by number on myfloridalicense.com.

  • NADCA membership since July 2024

    The Boca Raton crew works under Express Air Duct Cleaning LLC, a National Air Duct Cleaners Association member since July 22, 2024.

    Find it on nadca.com in the Find a Professional directory.

  • Reviews, shown as a selection

    The reviews on this site are a rotating selection of our newest five-star ratings, not a full transcript. The whole profile (every rating, not only the ones we show) is one click away on Google, through the link on our reviews page.

    Read every rating on the Google profile itself, through the link on our reviews page.

  • You get the price before we start

    Because the price depends on your home, the technician works it out on site after looking. That happens before any work, and you don’t have to book the same day.

    Reviews on the profile call the price reasonable for the work done.

  • 100% satisfaction promise

    Anything that isn’t right, we return and fix. This promise is ours, not a badge from someone else, which makes it the only item here you can’t look up.

Straight from Google

Reviews that come closest to this job.

5.065 Google reviewsAs of See all reviews on Google

A selection of our 5-star reviews on Google.

  • Nicholas A.

    Had the staff conduct an air vent clean and dust bunnies stopped stacking up on our ceiling fan blades.

  • ema V.

    If someone asked me who to use for air duct cleaning, ld send them to this company. We had a really good experience.

  • jonah C.

    Really appreciated the care they put into cleaning our air ducts. The guys were respectful, helpful, and did a really nice job.

Asked before booking

What people ask us about replacing ducts.

Question not covered? Call (561) 652-6273; a technician will go over it with you before anything is booked.

Put my question to a technician
Is my ductwork due for replacement, or only a cleaning?
Most people can’t tell from inside the room, which is why the visit exists. Dust inside the run, a torn seam at a collar, attic flex that has dropped and a damper that no longer moves all feel the same from below, and each costs less to fix than new duct. Replacement makes sense when the run itself has failed: flattened, ripped down its length, or routed so poorly that no cleaning will push air as far as the last room on it. We inspect first, then tell you which case is yours.
What makes a duct the wrong size?
Every duct has a cross-section, and all the air your blower produces must pass through it. If it is too tight, the pressure the blower fights climbs: the unit runs longer, delivers less air and wears out sooner. If it is too roomy, the air fans out and loses speed, arriving at the grille with no push and stalling before it crosses the room. From your couch both feel the same (a weak breeze), and a bigger air conditioner cures neither, because the duct, not the unit, governs what reaches your rooms.
An AC company told me to upsize my unit. Should I?
Sometimes. But a larger unit forcing air into the same undersized duct only makes the old complaint louder, so have the ductwork looked at before anyone prices new equipment. On our Boca Raton profile, one customer whose AC kept cutting out early learned from the technician that a ventilation blockage was the cause, and it was fixed on the spot. We’d rather give you that answer than sell you a system you don’t need.
Are any of your reviews from duct replacements?
No, none that are specifically about one, and we would rather say that up front. What the Boca Raton Google reviews describe is cleaning and repair work: a torn flexible duct mended, failed duct tape swapped for thick foil sealant, a wobbly register boot made secure inside the wall, a wall offset box behind the unit brought back into line. Those are the closest to installation. The whole profile can be read on Google, through the link on our reviews page.
Will new ducts cool my home better?
Your system’s capacity stays the same, and be wary of anyone who promises a number. New duct changes how much of the cool air your system already produces reaches the rooms: less pressure for the unit to fight, air still moving briskly at the grille, and a distant room fed by a branch short enough for the air to make it there. When a single room has always lagged and the rest of your home is comfortable, the duct is usually to blame, not the capacity.
How much does replacing ductwork cost?
The price moves with how much duct comes out, how many rooms the new run feeds, how much room the attic gives and whether it is built in flex or metal. That is too many variables for an honest figure on a web page. A technician gives you the number at your home once they have seen the job, before any work begins, and you are not obliged to book that day.
Where do you install ductwork?
Boca Raton, Delray Beach and Highland Beach, all three in the south of Palm Beach County, plus Deerfield Beach, Coconut Creek and Parkland across the county line in Broward. Every one of the six has its own page under service areas, backed by the housing data that explains what we tend to find in its homes.
Your next step

Name the one room that stays warm.

Hearing which room it is usually lets us say whether the fix is cleaning, repair or a replacement run, and we’ll tell you which before anything is booked.

Schedule my duct visit