Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable Duct Repair & Sealing Across Lakewood
Duct repair and sealing in Lakewood, Colorado, typically runs $340-$780 for most residential systems, with flex duct repair starting around $280 and full metal duct restoration reaching $950 on older homes with extensive joint deterioration. We’re CleanRun Air Duct Cleaning Littleton, and our crews work Lakewood neighborhoods weekly - from the ranch homes along the Alameda corridor to the split-levels near Bear Creek Lake. Dispatch and scheduling are coordinated from our Denver office, but our technicians live and work in the metro area, so they know the difference between a 1968 ranch near Green Mountain and a 1980s build in Belmar. Call (720) 315-7291 and we’ll put a written price in your hand before any panel comes off.
Why CleanRun Air Duct Cleaning Littleton Is Lakewood’s Preferred Duct Repair & Sealing Company
We’ve served more than 52,000 homes since 2013, and a significant share of those have been in Lakewood’s older neighborhoods where the real problems aren’t surface dust - they’re crushed flex connectors, disconnected supply trunks, and return lines that were never sized for modern forced-air equipment. Our Duct Repair & Sealing team documents every run with before-and-after photos, so Lakewood homeowners see exactly what was found and what was fixed.
Our reputation in Lakewood is built on one practice that still surprises people: we answer our phones with a live person, 24 hours a day. No automated routing to a call center in another state. When you schedule in Lakewood, you get a background-checked, uniformed technician who arrives with a name badge and a written scope - Haven Standard Clause 3: Verified Crews. The 365-Day Done Right Promise applies to every job, backed in writing, not buried in a policy manual.
Response time to Lakewood is typically same-week, often within 48 hours for non-emergency sealing and repair work. We’re not going to invent urgency where none exists - duct sealing is a scheduled job, and we’d rather do it right than do it rushed.
Our Duct Repair & Sealing Services in Lakewood
Duct Sealing
In Lakewood’s 1960s and 1970s ranch homes, original galvanized sheet-metal ducts develop leaks at every joint and seam after sixty years of thermal cycling. The mastic sealant we apply - not duct tape, which degrades in 3-5 years - fills gaps permanently and restores system pressure. In the foothills-adjacent neighborhoods on Lakewood’s west side, where Chinook winds pressurize homes and force conditioned air out through every crack, proper duct sealing often delivers more comfort improvement than a new thermostat. A typical duct sealing job in Lakewood runs $340-$620 for a single-system ranch home.
Flex Duct Repair
Flex duct, the ribbed plastic tubing common in attic spaces and crawl areas, crushes easily and disconnects at collar joints. In Lakewood’s older homes, we find flex connectors that have been sagging for decades, sometimes completely separated from supply trunks so heated air dumps into attics or crawl spaces. Our crew replaces crushed runs with properly supported new flex, sized to the original design airflow, and photographs every connection. Flex duct repair in Lakewood typically costs $280-$450 per run, depending on accessibility.
Metal Duct Repair
Original galvanized trunk lines in Lakewood’s Alameda-corridor ranches weren’t built to handle the air velocity of modern gas furnaces. The seams pop, elbows separate, and rust-through appears in basements with past moisture issues. We repair with matching sheet metal, seal with mastic, and reinforce high-stress joints. Metal duct repair in Lakewood ranges from $380 for a localized seam fix to $780 for trunk line restoration in a full basement system. In the 1960s ranch neighborhood near Alameda and Wadsworth, we removed a crushed flex connector and resealed a disconnected supply trunk in a home with original galvanized ductwork. Using camera inspection and agitation tools, we found debris blown deep into branch runs by an undersized return. After mastic sealing and metal duct repair, airflow improved and the system passed our post-cleaning test.
Duct Insulation
Uninsulated or degraded duct wrap in Lakewood’s unconditioned basements and crawl spaces wastes energy every winter when outside temperatures drop below 20°F. We install new fiberglass duct insulation with vapor barrier, or replace existing wrap that has compressed or torn. In homes where original duct wrap may contain asbestos-containing materials, we identify and document before proceeding - a step some competitors skip. Duct insulation in Lakewood runs $420-$680 for a typical ranch system.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Lakewood
Our equipment roster includes Nikro negative-pressure extractors, Honeywell media air cleaners, and Aprilaire whole-home humidifiers - brands you can look up independently before we arrive. We don’t carry every part for every system, but for common Lakewood configurations - 1960s-1980s forced-air retrofits with Honeywell or Aprilaire add-ons - we stock replacement collars, dampers, and sealant materials on the truck. That means one visit, not two, for most sealing and repair jobs. Abatement Technologies HEPA filtration runs on every job site where disturbed debris is a concern, particularly in Lakewood’s older homes where decades of accumulation sit undisturbed until we open the plenum.
Common Duct Repair & Sealing Problems We See in Lakewood Homes
- Undersized return trunks blasting debris deep into supply branches. In Alameda-corridor ranch homes, return-air lines were never upsized when oil or floor furnaces were swapped for forced-air. The resulting high velocity drives fine dust past standard brush passes, so partial cleaning leaves most of the contamination in place.
- Original galvanized ducts leaking at every seam after 50-60 years. Thermal expansion and contraction open gaps that mastic sealant can close, but only if someone inspects every joint with a camera instead of assuming the problem is at the register.
- Asbestos-containing duct wrap or flex connections in pre-1980 construction. Lakewood’s housing stock is dense with 1960s-1970s builds where ACM (asbestos-containing material) may be present. We identify and document before disturbing anything - a legal and safety requirement that protects the homeowner and our crew.
- Chinook winds and wildfire smoke driving recurring contamination. Lakewood’s western edge sits directly at the base of the Rocky Mountain foothills, placing it in the path of channeled Chinook downslope winds that funnel wildfire smoke, pollen, and road dust into homes far more aggressively than in Denver’s eastern suburbs - making duct contamination a recurring seasonal problem rather than a one-time maintenance issue. This foothills exposure, layered onto the city’s enormous stock of 1960s-1970s ranch homes with decades-old original sheet-metal ductwork, means Lakewood systems accumulate debris faster and in configurations that are genuinely more difficult to clean than newer construction.
Pricing for Duct Repair & Sealing in Lakewood, CO
Here’s what duct repair and sealing actually costs in Lakewood’s market, based on jobs we’ve completed in 80214, 80215, 80226, 80227, 80228, 80232, and 80235:
| Service | Typical Range in Lakewood |
|---|---|
| Duct sealing (mastic, single system) | $340 - $620 |
| Flex duct repair / replacement (per run) | $280 - $450 |
| Metal duct repair (localized seam/joint) | $380 - $580 |
| Metal duct trunk restoration | $620 - $950 |
| Duct insulation (full system) | $420 - $680 |
| Camera inspection with written report | $180 - $240 |
What moves a job toward the higher end: multiple attic or crawl-space runs, asbestos documentation requirements, homes with additions where ductwork was pieced together by prior owners, and the undersized return trunks common in Lakewood’s 1960s ranches that require more time to properly seal and test. We deliver a written price before any work starts - Haven Standard Clause 1 - and that price is flat per system, not per vent. No $79 coupon that becomes a $900 invoice once the truck is in your driveway. Call (720) 315-7291 for an exact quote; estimates are free.
We Also Serve Cities Near Lakewood
Our crews work throughout the southwest Denver metro, including Lakewood, Littleton, Englewood, Highlands Ranch, and Cherry Hills Village. The same written-price-first protocol, the same documented photo record, and the same 365-Day Done Right Promise apply whether we’re sealing ducts in a 1972 ranch near Alameda or repairing flex runs in a newer build in Highlands Ranch.
Serving Lakewood, CO - Our Local Coverage Area
We’re based in the Lakewood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Duct Repair & Sealing in Lakewood
Undersized return-air trunk lines, never upsized when original oil or floor furnaces were converted to forced-air, create air velocity high enough to blast fine debris deep into supply branches. A standard forward-and-back brush pass can’t reach it. In Lakewood’s Alameda-corridor ranches, we routinely find that jobs take 40-60% longer than flat-rate schedules allow, which is why we price by system scope, not by hour or by vent count. Call (720) 315-7291 and we’ll put the actual scope in writing before starting.
At roughly 5,500 feet in a semi-arid climate, Lakewood’s relative humidity frequently drops below 20% in winter, keeping household dust fine and airborne rather than letting it clump near registers - it migrates deeper into supply runs and coats all interior duct surfaces evenly, making partial cleaning insufficient. This same dryness accelerates mastic curing, which is good for sealing work, but also causes flex duct to become brittle and crack faster than in humid climates. Call (720) 315-7291 for an inspection if your system is 20+ years old.
Duct wrap or flex connections from Lakewood’s primary construction era may contain asbestos-containing materials, which technicians must identify and document before any standard cleaning or repair work begins. We inspect visually and, when indicated, recommend third-party testing before disturbing suspect materials - this is a safety and legal requirement, not an upsell. If ACM is present, we modify our approach to comply with abatement protocols. Call (720) 315-7291 and we’ll walk you through what the inspection involves.
Original galvanized ducts in Lakewood’s 1960s-1970s ranches leak at joints and seams after decades of thermal cycling, losing 20-30% of conditioned air to basements, crawl spaces, and wall cavities. The homeowner feels “poor airflow” at registers and assumes the system needs cleaning, when the actual problem is pressure loss. Mastic sealing restores that pressure, improves room-to-room balance, and often costs less than repeated cleaning of a system that was never dirty to begin with - just leaking. Call (720) 315-7291 for a pressure test and written scope.
Wildfire seasons have grown severe enough that repeated smoke-infiltration events are now a measurable driver of duct contamination in the foothills-adjacent neighborhoods on Lakewood’s west side. Chinook downslope winds pressurize homes and force outdoor particulates through every gap in the envelope, including duct leaks. For homes in Green Mountain, Applewood, and similar west-Lakewood areas, we now recommend inspection every 2-3 years rather than the 5-year standard, with sealing prioritized to reduce infiltration pathways. Call (720) 315-7291 to schedule; we’ll photograph what we find and show you before discussing any work.
Ready to see what’s actually inside your ducts? Call CleanRun Air Duct Cleaning Littleton at (720) 315-7291. We’ll answer with a live person, schedule an inspection at your Lakewood home, and deliver a written price before any work begins - Haven Standard Clause 1, no exceptions. Every job includes a Documented Photo Record of every duct run, before and after, and is backed by our 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Littleton, serving Lakewood and the Denver metro area since 2013.