RV Duct Repair
Stuart, FL
Stuart RV Repair fixes collapsed ducts, disconnected flex lines, broken registers, and airflow issues on-site across Stuart, FL and Martin County. We come to your campsite or driveway.
Stuart RV Repair fixes collapsed ducts, disconnected flex lines, broken registers, and airflow issues on-site across Stuart, FL and Martin County. We come to your campsite or driveway.
Stuart RV Repair fixes RV ductwork and airflow problems on-site. Collapsed ducts, disconnected flex lines, broken registers, airflow balancing, and duct insulation. $100-500 depending on the scope. We come to you anywhere in Stuart, FL and across the Treasure Coast. Call 772-280-3915. Need other A/C and heating repairs? We handle those too.
We get calls all the time from people in Stuart who think their rooftop AC is dying because certain rooms won't cool down. But when we check the unit, it's pumping out cold air just fine. The problem? Collapsed or disconnected ductwork between the AC plenum and the floor registers. Cold air never makes it to the back of the RV because it's leaking into the floor cavity or getting choked off by a crushed flex line.
RV ductwork is nothing like what's in your house. It's lightweight 4-inch flexible vinyl hose that runs under the floor, through cabinets, and around obstacles. Road vibration, heavy items stored on top of it, slide-out mechanisms pressing on runs, and simple age all cause damage. The connections between the hose and the plenum or registers are usually just friction-fit with a clamp. Those pull apart surprisingly easily.
In Florida's heat, uninsulated ductwork is also a major issue. Cold air from the AC runs through a flex hose sitting in a 130-degree floor cavity. By the time it reaches the bedroom register at the back of the coach, it's barely cool. According to HVAC industry standards from ASHRAE, uninsulated ducts in hot spaces can lose 15-25% of their cooling capacity. Wrapping the ducts with foil-backed insulation is one of the best efficiency upgrades you can do on an RV in Stuart.
Classic collapsed or disconnected duct. The front registers closest to the AC plenum get plenty of air because they're short runs. The long run to the bedroom has either collapsed under stored gear or pulled loose from a fitting. We trace the run and fix or replace the damaged section. $100-280 depending on access.
A disconnected duct is dumping conditioned air into the floor cavity instead of the living space. Your AC is working overtime cooling the underside of the floor. We access the duct run, reconnect or replace the section, and verify airflow at the register. This fix alone can make a noticeable difference in cooling.
Air forcing through a partially collapsed duct or a cracked register creates a whistling sound. It's annoying and it means you're losing airflow. We locate the restriction and either clear it or replace the damaged section. A cracked register is a $60-100 fix. A pinched duct section is $150-280.
If the rooftop AC checks out fine, uninsulated ductwork is often the culprit. In Stuart's summer heat, cold air running through uninsulated flex in a 130-degree floor cavity loses a huge amount of cooling before it reaches the registers. Insulating the accessible duct runs can drop interior temps 3-5 degrees.
Slide-out rooms have duct runs that flex as the room moves in and out. Those flex connections are the first thing to fail. The duct either gets pinched by the slide mechanism or pulls completely off the fitting when extended. We install slide-resistant fittings and flexible connections that handle the movement without disconnecting.
RV floor registers take a beating from foot traffic, dropped items, and moving furniture. Cracked registers leak air, and stuck dampers mean you can't adjust airflow. We carry standard 4-inch RV register replacements on the truck. $60-100 per register installed, and we verify the duct connection underneath is solid while we're at it.
RV ductwork varies by manufacturer and coach class. Here's what we see most across Stuart and Martin County.
The most common ductwork in travel trailers and fifth wheels. It's lightweight, cheap, and easy to route. But it's also easy to crush, kink, and disconnect. The vinyl gets brittle after years in Florida heat and can crack where it bends around obstacles. We replace damaged sections with heavy-duty flex hose that holds up better to compression and temperature cycling.
Pre-insulated flex duct has a foil and fiberglass jacket around the vinyl core. Higher-end RVs come with this from the factory. If yours didn't, we can retrofit insulated duct on accessible runs. The insulation prevents the massive thermal loss that happens when cold air runs through a hot floor cavity. In Stuart summers, this is one of the smartest upgrades you can make.
The plenum is the box that sits under the rooftop AC and distributes air into the duct system. Some plenums have dampers to balance airflow between runs. Cracked plenums leak air before it even enters the ducts. Misadjusted dampers send most air to one side of the coach. We inspect and repair the plenum during any ductwork service call.
Some Class A and Class C motorhomes use rigid sheet metal or molded plastic duct runs in certain sections. These are more durable than flex but can develop gaps at joints from road vibration. The connections between rigid and flex sections are common failure points. We seal joints with HVAC-rated mastic tape (not standard duct tape, which fails in heat).
Call 772-280-3915 or request a quote. Tell us what's happening - weak airflow from certain vents, uneven cooling, whistling sounds. Let us know how many vents are affected. We schedule same or next day across Stuart and Martin County.
Our tech checks every vent register, inspects accessible duct runs, tests airflow volume at each outlet, and looks for collapsed, disconnected, or damaged sections. We also check the plenum box and any damper settings. Most inspections take 30-45 minutes.
We carry flex duct material, HVAC-rated tape, register covers, insulation wrap, and clamps on the truck. Most ductwork repairs are done in 1-3 hours. We verify balanced airflow at every register before leaving so you know every room is getting the air it should.
| Repair Type | Price Range | Typical Time |
|---|---|---|
| Single duct reconnection | $100-180 | 30-45 min |
| Collapsed duct replacement | $150-280 | 45-90 min |
| Register / vent replacement | $60-100 | 15-20 min |
| Duct insulation wrap | $180-350 | 1-2 hrs |
| Full duct section re-run | $200-400 | 1-2 hrs |
| Airflow balancing (full system) | $120-220 | 1-2 hrs |
| Complete ductwork overhaul | $350-500 | 3-5 hrs |
Our bedroom was always 10 degrees warmer than the living room. We assumed the AC was too small. Tech crawled under and found a completely crushed flex duct under the couch storage. Replaced it in about an hour and the bedroom is actually cool now. Can't believe how simple the fix was.
Had the tech insulate all the accessible duct runs in our motorhome. The difference was immediate. The rear bedroom actually gets cold air now instead of lukewarm. Should have done this years ago. Well worth the investment for summer camping in Florida.
The slide-out room in our trailer had zero airflow when extended. The tech found the flex duct disconnected right at the slide junction. Put in a new fitting designed for slide-outs and now we get good airflow regardless of whether the slide is in or out. Smart fix.
RV ductwork repairs in Stuart typically run $100-500 depending on the scope. A single disconnected flex line reconnection costs $100-180. Register replacement is $60-100 per vent. A full duct re-run for one section is $200-400. Complete ductwork overhaul with insulation runs $350-500. We give you a written quote after inspecting the system.
Uneven airflow almost always means a collapsed or disconnected duct somewhere in the system. RV ducts are flexible plastic or vinyl hose that runs under floors and through cabinets. Heavy items stored on top of them, slide-out mechanisms, and age can crush or disconnect them. We trace the run from the AC plenum to each register to find the restriction.
Most RVs use 4-inch flexible vinyl or polyester duct hose. It connects to a central plenum box under the rooftop AC or furnace and runs to floor or ceiling registers throughout the coach. Some higher-end motorhomes use rigid ductwork in certain sections. The flex hose is the weak point since it crushes easily and the connections pull apart from road vibration.
Yes. Uninsulated ductwork in Florida is a real problem because ducts run through hot spaces like under the floor. Cold air warms up before reaching the register. We wrap existing ducts with foil-backed insulation or replace sections with pre-insulated flex duct. This alone can drop interior temps by 3-5 degrees in Stuart summers.
Put your hand over each register while the AC runs on high. If one register has noticeably less airflow than the others, there's likely a collapse or disconnect in that run. You might also hear whistling or a strained sound from the AC blower as it tries to push air through a restricted path. We use airflow meters to measure actual CFM at each register.
Yes. In most RVs, the AC and furnace share the same duct system. The rooftop AC blows cold air down through a plenum into the ducts, and the furnace pushes warm air through the same runs. A collapsed duct affects both heating and cooling. We repair the full system in one visit, balancing airflow for both AC and heat.
We handle all RV A/C and heating repairs - rooftop units, capacitors, furnaces, thermostats, and ductwork. If you've got multiple climate control issues, we bundle them into one visit across Stuart and the Treasure Coast.
We cover Martin, St. Lucie, and Palm Beach counties for all RV ductwork repairs. From Stuart and Palm City to Jensen Beach, Hobe Sound, and down to Jupiter.
Call us or request a free estimate. We'll trace every duct run, find the problem, and fix it on-site. Collapsed ducts, disconnected lines, insulation, register replacements. Same-day mobile service across Stuart and the Treasure Coast.