Duct Services in Las Vegas
Professional ductwork repair, replacement, cleaning, sealing, and inspection for Las Vegas homes
Short answer: The Cooling Company provides complete duct services throughout the Las Vegas Valley, including duct repair, replacement, cleaning, sealing, and inspection. Ductwork in Las Vegas faces extreme conditions — attic temperatures above 150°F, constant dust infiltration, and thermal expansion that loosens joints over time. Our NATE-certified technicians diagnose the root cause, present clear options, and deliver lasting results. Call (702) 567-0707 or Schedule Now.
Your ductwork is the distribution system for every dollar you spend on heating and cooling. When ducts leak, crack, collect debris, or lose their seal, your HVAC system works harder, your energy bills climb, and your indoor air quality suffers. In Las Vegas, where air conditioning runs six to eight months per year and attic temperatures routinely exceed 150°F, ductwork problems cost homeowners more than they would in milder climates. The Department of Energy estimates that the average home loses 20 to 30 percent of conditioned air through duct leaks and poor connections — and that figure climbs higher in extreme heat environments like the Mojave Desert.
The Cooling Company has been serving the Las Vegas Valley since 2011 with honest assessments, upfront pricing, and work that holds up under desert conditions. We are a BBB A+ rated contractor, a Lennox Premier Dealer, and our technicians carry NATE certifications. Whether you need a targeted repair, a full duct replacement, or a professional cleaning after years of dust accumulation, we handle every aspect of ductwork service under one roof.
Why Ductwork Matters for Las Vegas Homes
Ductwork is not a set-it-and-forget-it component. It is an active part of your HVAC system that degrades over time, especially under the conditions found in southern Nevada. Consider what your ducts endure every year:
- Extreme heat exposure — attic-mounted ducts sit in temperatures above 150°F during summer, baking insulation and weakening adhesive connections
- Thermal cycling — daily temperature swings of 30 to 40 degrees cause metal ducts to expand and contract, loosening joints and cracking sealant
- Desert dust infiltration — fine particulate from the Mojave, construction activity, and wind events enters ductwork through every gap and unsealed joint
- Extended runtime — Las Vegas HVAC systems run 2,000+ hours per cooling season, pushing more air through ducts (and more dust with it) than systems in moderate climates
- Pest entry — scorpions, rodents, and insects seek cool refuge in ductwork, entering through gaps at boots, collars, and penetrations
Healthy ductwork delivers the right volume of conditioned air to every room, maintains balanced pressure throughout the system, and keeps contaminants out of your breathing air. When any of these functions break down, the consequences show up as hot rooms, high utility bills, excessive dust on surfaces, and premature wear on your air conditioning and heating equipment.
Our Duct Services
We offer five core duct services, each designed to address a specific category of ductwork problems. Many homes benefit from a combination of services — for example, sealing leaky joints after a thorough inspection, or cleaning ducts before installing a new AC system. We assess your ductwork as a complete system and recommend only the services that will deliver measurable results.
- Duct Repair — fix leaks, reconnect separated sections, and restore damaged duct runs
- Duct Replacement — remove failing ductwork and install properly sized, sealed, and insulated new ducts
- Duct Cleaning — remove accumulated dust, debris, allergens, and contaminants from the interior of your duct system
- Duct Sealing — seal leaks at joints, boots, and connections to stop conditioned air loss
- Duct Inspection — comprehensive evaluation of duct condition, airflow, leakage, and insulation
Duct Repair
Duct damage happens gradually, then suddenly. Joints loosen from thermal cycling. Flex duct sags and kinks under its own weight after insulation straps fail. Sheet metal develops cracks at stress points. Boots pull away from drywall. Each of these issues restricts airflow, leaks conditioned air into unconditioned spaces, and forces your system to work overtime.
Common duct problems we repair
- Disconnected or separated duct sections in attics and crawlspaces
- Crushed or kinked flex duct runs restricting airflow
- Cracked sheet metal at joints, transitions, and takeoffs
- Loose or detached register boots causing air to blow into wall cavities
- Damaged insulation exposing ducts to extreme attic heat
- Holes from rodent or pest activity
Signs your ducts need repair
- Rooms that are consistently warmer or cooler than the rest of the house
- Visible dust blowing from supply vents when the system starts
- Whistling, rattling, or popping sounds from the ductwork
- Energy bills increasing without changes in usage
Our repair process
- Inspect accessible duct runs, connections, and insulation
- Measure airflow and static pressure to identify restrictions
- Present findings with clear repair options and pricing
- Repair or reconnect damaged sections using mastic sealant and mechanical fasteners
- Verify airflow improvement with before-and-after measurements
For a full breakdown of what our local repair service includes, visit our duct repair page. For background on the most common duct problems and what they cost homeowners, read our guide on 7 ductwork issues draining your energy bills.
Duct Replacement
Not every duct system is worth repairing. If your ductwork is more than 15 to 20 years old, undersized for your current HVAC equipment, extensively damaged, or made from deteriorating materials, replacement is the better long-term investment. Many Las Vegas homes built in the 1990s and early 2000s have original ductwork that was minimally sized, poorly sealed, and insulated with material that has since degraded in attic heat.
When replacement makes more sense than repair
- Ductwork is 15+ years old with widespread deterioration
- Multiple sections are disconnected, crushed, or sagging
- Ducts are undersized for the tonnage of your current HVAC system
- Insulation has collapsed or disintegrated, leaving ducts exposed to 150°F+ attic temperatures
- You are installing a new AC system and existing ducts cannot support proper airflow
- Extensive pest damage has compromised duct integrity
Materials and methods
We install rigid sheet metal trunk lines with R-8 insulated flex duct branch runs, sized according to Manual D calculations for proper airflow to each room. All connections are mechanically fastened and sealed with mastic to prevent leaks. We verify performance with airflow testing at every register before the job is complete.
Benefits of new ductwork
- Balanced airflow and consistent temperatures throughout the home
- Reduced energy waste — properly sealed new ducts can recover 20 to 30 percent of lost cooling capacity
- Quieter operation with properly sized and supported duct runs
- Improved indoor air quality with clean, sealed pathways for conditioned air
- Longer HVAC equipment life from reduced static pressure and proper airflow
Learn more about the replacement process on our duct replacement page. For cost information, see our article on air duct replacement costs.
Duct Cleaning
Las Vegas is one of the dustiest metropolitan areas in the country. Fine desert particulate, construction dust from ongoing development, and pollen from landscaping all find their way into your ductwork over time. Add pet dander, skin cells, and household fibers to the mix, and you have a coating of debris that builds up inside supply and return ducts year after year.
Why duct cleaning matters in the desert
- Dust accumulation accelerates here — Las Vegas homes collect dust faster than homes in humid climates because dry air carries more particulate
- Longer cooling seasons mean more throughput — your ducts handle more air volume annually, pulling more debris into the system
- Monsoon moisture creates mold risk — summer humidity spikes can create moisture pockets in ducts that encourage mold and bacterial growth
- Allergens concentrate indoors — with windows closed six months a year for cooling, contaminants recirculate through ducts repeatedly
What our cleaning includes
- High-powered vacuum extraction of dust and debris from all supply and return ducts
- Agitation of duct surfaces to dislodge caked-on particulate
- Cleaning of register boots, grilles, and accessible plenums
- Visual inspection for mold, pest evidence, and duct damage
- Written report on duct condition with recommendations for any follow-up work
How often should you clean your ducts?
For most Las Vegas homes, every 3 to 5 years is appropriate. Homes with pets, allergy sufferers, smokers, or recent renovations may benefit from cleaning every 2 to 3 years. If you notice visible dust clouds when your system starts, musty odors from vents, or a sudden increase in allergy symptoms, schedule a cleaning regardless of the timeline.
For a deeper look at when duct cleaning is necessary and what to watch for, read our article on 7 signs you need duct cleaning. To schedule service, visit our duct cleaning page.
Duct Sealing
Duct leakage is the single largest source of energy waste in most Las Vegas homes. According to the Department of Energy, leaky ducts can waste 20 to 30 percent of the air your system produces. In a climate where cooling bills regularly exceed $300 per month during summer, that translates to $60 to $90 per month in wasted energy — money that literally leaks into your attic.
Where ducts leak most
- Plenum connections — where the supply and return plenums meet the air handler
- Branch takeoffs — where individual duct runs connect to the main trunk line
- Boot connections — where ducts connect to registers in floors, walls, and ceilings
- Flex duct collars — where flexible duct attaches to rigid fittings
- Duct joints and seams — any point where two sections of ductwork meet
Sealing methods we use
We use two primary approaches depending on the scope and accessibility of the leaks:
- Manual sealing with mastic — for accessible joints, boots, and connections, we apply UL-181-rated mastic sealant reinforced with mesh tape. This creates a permanent, flexible seal that withstands thermal cycling. Mastic is the industry standard for long-term duct sealing.
- Aeroseal duct sealing — for systems with extensive leakage in hard-to-reach locations, Aeroseal technology pressurizes the duct system and injects polymer sealant particles that find and seal leaks from the inside. This method is effective for sealing hundreds of small leaks simultaneously and provides before-and-after leakage measurements.
Return on investment
Professional duct sealing typically pays for itself within 2 to 4 years through reduced energy costs. Homeowners with significant leakage often see a 15 to 25 percent reduction in heating and cooling bills after sealing. Beyond energy savings, sealing prevents unconditioned attic air — carrying dust, insulation fibers, and allergens — from being pulled into your living space through return leaks.
Visit our duct sealing page for details on scheduling this service.
Duct Inspection
A professional duct inspection is the starting point for understanding what your ductwork needs. We recommend an inspection before any major HVAC work, when you move into a new home, or whenever you notice symptoms of duct problems — uneven temperatures, rising energy bills, or excessive dust.
What we check during an inspection
- Visual assessment — condition of accessible duct runs, insulation, connections, and supports
- Airflow testing — measuring CFM at each register to identify restrictions and imbalances
- Static pressure measurement — checking system pressure to detect blockages, undersized ducts, or excessive leakage
- Thermal imaging — infrared scanning of duct runs in walls and ceilings to identify hidden leaks and insulation gaps
- Leakage testing — pressurizing the duct system to quantify total air loss
- Pest and contamination check — looking for evidence of rodents, insects, mold, or moisture damage
What you receive after the inspection
We provide a written report that documents the current condition of your ductwork, quantifies leakage and airflow issues, and presents prioritized recommendations with clear pricing. There is no obligation — the report gives you the information to make an informed decision about repair, sealing, cleaning, or replacement.
For details on what our inspection covers and how to schedule one, visit our duct inspection page.
Signs Your Ductwork Needs Attention
Duct problems often develop slowly and go unnoticed until they create obvious comfort or cost issues. Watch for these warning signs:
- Uneven temperatures between rooms — some rooms stay comfortable while others are consistently too warm or too cold, even with vents open
- Rising energy bills — monthly cooling costs climbing without a change in usage patterns or utility rates
- Excessive dust on furniture and surfaces — dust returning within hours of cleaning, especially near supply vents
- Visible dust puffs from vents — a burst of dust when the system kicks on indicates debris buildup inside the ducts
- Musty or stale odors from vents — suggests mold growth, moisture accumulation, or organic debris in the ductwork
- HVAC system running constantly — restricted airflow or significant leakage forces the system to run longer cycles to maintain temperature
- Noisy ductwork — whistling at registers indicates high velocity from restrictions; rattling or popping suggests loose connections or thermal expansion issues
If you notice two or more of these signs, a duct inspection is a smart first step. Identifying the root cause prevents you from spending money on the wrong fix.
How Las Vegas Climate Affects Your Ductwork
Las Vegas is one of the harshest environments for residential ductwork in the country. The combination of extreme heat, low humidity, dust, and extended cooling seasons creates conditions that accelerate duct deterioration far beyond what homeowners in temperate climates experience.
- Attic temperatures — attics in Las Vegas homes reach 150°F to 170°F during summer. Ducts running through these spaces absorb tremendous heat, degrading insulation, softening adhesive tape, and baking mastic sealant. Uninsulated or poorly insulated attic ducts can raise the temperature of supply air by 15 to 20 degrees before it reaches the register.
- Thermal expansion and contraction — metal ductwork expands when heated and contracts when cooled. In Las Vegas, where outdoor temperatures can swing 30 to 40 degrees in a single day, this daily cycling loosens mechanical connections and cracks rigid sealant over time.
- Desert dust — the Mojave Desert produces extremely fine particulate that penetrates building envelopes and enters ductwork through every gap. Construction activity throughout the valley adds to the airborne dust load. This particulate coats duct interiors, clogs filters faster, and reduces system efficiency.
- Pest pressure — scorpions, roof rats, mice, and insects are common in the Las Vegas Valley. These pests enter homes through gaps in ductwork at wall penetrations, boot connections, and attic entries. Beyond the obvious discomfort, pests damage insulation and leave droppings that contaminate airflow.
- UV and ozone degradation — ductwork in exposed locations (rooftop, exterior chases) deteriorates from UV exposure and ozone, which breaks down flexible duct jackets and tape over time.
These conditions are why regular duct maintenance and periodic professional inspection are not optional in Las Vegas — they are essential to maintaining comfort, efficiency, and indoor air quality.
Frequently Asked Questions
How do I know which duct service I need?
Start with a duct inspection. Our technicians assess airflow, leakage, insulation condition, and contamination level, then recommend the specific services that will address your situation. Many homes need a combination — for example, sealing plus targeted repair, or cleaning before a new system installation. We present options with clear pricing so you choose what fits your budget and priorities.
How much do duct services cost in Las Vegas?
Cost varies by service type and scope. Duct repairs typically start at a few hundred dollars. Comprehensive sealing ranges from $800 to $2,500 depending on home size and leakage severity. Full duct replacement for a standard Las Vegas home ranges from $3,000 to $8,000 depending on layout, accessibility, and materials. We provide free estimates with transparent pricing — no hidden fees or surprise charges.
How long does ductwork last in Las Vegas?
Sheet metal ductwork lasts 20 to 30 years with proper maintenance and sealing. Flex duct typically lasts 10 to 15 years before insulation and jacket materials deteriorate in attic heat. Sealant and tape at joints may need reapplication sooner. The harsh Las Vegas climate shortens these timelines compared to milder regions, which is why periodic inspection is important.
Can duct problems affect my AC system's lifespan?
Absolutely. Restricted airflow from damaged or undersized ducts increases static pressure, which forces your blower motor to work harder and your compressor to run longer cycles. Leaky return ducts pull hot attic air into the system, raising the load on your air conditioner. Both conditions accelerate wear and can shorten equipment life by several years.
Do you service all areas of the Las Vegas Valley?
Yes. We provide duct services throughout Las Vegas, Henderson, North Las Vegas, Summerlin, Green Valley, Centennial Hills, Mountains Edge, Southern Highlands, and all surrounding communities. Call (702) 567-0707 for the next available appointment in your area.
Should I have my ducts cleaned or sealed when installing a new AC?
We strongly recommend it. Installing a high-efficiency AC system on leaky or dirty ductwork is like putting a new engine in a car with flat tires. Sealing leaks before or during installation ensures your new system delivers its rated efficiency. Cleaning removes debris that would otherwise be pushed through a new system from day one. We evaluate ductwork condition as part of every installation consultation.
Schedule Your Duct Service Today
Whether you need a targeted repair, a professional cleaning, or a complete duct system evaluation, The Cooling Company delivers results that hold up under Las Vegas conditions. Our NATE-certified technicians provide honest assessments, upfront pricing, and work backed by our satisfaction guarantee.
Call (702) 567-0707 for a free estimate or Schedule Now. Same-day service is available for urgent ductwork issues.
Need HVAC Service in Las Vegas?
The Cooling Company provides expert HVAC service throughout Las Vegas, Henderson, and North Las Vegas. Our licensed technicians deliver honest assessments, upfront pricing, and reliable results.
Call (702) 567-0707 or visit AC repair, maintenance, heating, or installation for details.