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.
Fast, Reliable Duct Repair & Sealing Across Richmond
Duct repair and sealing in Richmond, TX typically costs $280-$680 for most residential jobs, with flex duct replacement running higher when flood damage or mold remediation is involved. Our crews coordinate dispatch from the Houston office and carry Rotobrush and Nikro equipment stocked for Richmond’s specific housing stock, from downtown historic homes to the master-planned subdivisions that define this Brazos River city. If you’re seeing uneven cooling, musty air from registers, or your energy bills have climbed without explanation, call us at (346) 421-3357. We’ll send a written price before any work starts, and you’ll receive a documented photo record of every duct run we touch.
Why CleanRun Air Duct Cleaning Sugar Land Is Richmond’s Preferred Duct Repair & Sealing Company
We’ve served Richmond homeowners since our founding in 2013, and the pattern we see here differs from anywhere else in Fort Bend County. Richmond sits directly in the Brazos River bottomlands, and that geography creates duct failure modes our technicians recognize on sight: sagging flex duct with condensate pooling, post-Harvey silt lines inside supply runs, and biological contamination that upland suburbs simply don’t produce.
Our Duct Repair & Sealing team has completed thousands of jobs under the H.A.V.E.N. Standard, every one with a written price agreed before work began and a photo record delivered afterward. Haven Standard Clause 1 is non-negotiable: no estimate leaves our hands without dollar figures attached. Tomas Reyes built this practice after watching too many homeowners burned by $79 coupon operations that turned into $800 invoices once the van arrived.
Richmond customers receive the same documented accountability as every home we serve. Background-checked, uniformed technicians. Equipment you can verify: Rotobrush agitation systems, Nikro HEPA-filtered negative-pressure units, Honeywell air quality monitors. And the 365-Day Done Right Promise in writing, not as a verbal assurance that disappears with the crew.
Our Duct Repair & Sealing Services in Richmond

Flex Duct Repair
Flex duct dominates Richmond’s residential construction from the 1980s through the early 2000s, particularly in Pecan Grove and comparable subdivisions where long single-story runs sag at support hangers after decades of 140°F+ attic exposure. We replace compromised flex duct with new material rated for the application, rebuild hanger supports to eliminate low points where condensate pools, and seal every joint with mastic sealant, not tape that degrades in heat. In Pecan Grove homes specifically, our crews routinely find standing water or compacted mold-laden debris in those sag pockets, a failure mode driven by the combination of duct age, attic heat, and river-bottom humidity unique to this stretch of Fort Bend County.

Duct Sealing
Sealing in Richmond means addressing leaks that pull humid outside air into conditioned spaces, which happens faster here than in drier Texas markets. We apply mastic sealant to metal joints and use professional-grade aerosol sealant systems where appropriate, pressurizing the duct system to verify results. For downtown Richmond’s pre-1960s homes with retrofitted duct systems in tight chases, sealing often requires custom fabrication to reach disconnected joints that leak conditioned air directly into hot attics. Every sealed system is photographed before and after, with pressure differential readings recorded in your job file.

Metal Duct Repair
Galvanized steel ductwork in older Richmond homes and commercial buildings corrodes at seams and develops separations where vibration has worked fasteners loose. We fabricate replacement sections on-site when stock fittings won’t match existing geometry, seal with mastic and mechanical fasteners, and insulate to prevent condensation on cold surfaces. Metal repair in Richmond’s humid climate demands attention to vapor barrier integrity, any gap becomes a condensation point that feeds mold growth inside the thermal envelope.

Duct Insulation
Insulation replacement becomes necessary when floodwater, rodent activity, or simple age have compressed or separated the vapor barrier from the duct surface. In Richmond’s near-constant AC season, uninsulated or poorly insulated ductwork in unconditioned attics loses capacity fast. We install insulation with proper vapor barrier orientation, sealed at all seams, to maintain supply air temperature from the air handler to the register. Post-Harvey jobs often require full insulation replacement even when the metal duct itself remains structurally sound.

Air Leak Repair
Air leaks in Richmond homes waste cooling dollars and pressurize wall cavities with humid outside air. We locate leaks with smoke testing and digital manometers, then repair with methods appropriate to the duct material. In newer tract construction west of Richmond’s city center, large square-footage means more total duct footage per home and more potential leak points when systems are neglected. Our repair scope is written before work begins, priced as a flat rate per system, not per vent.

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.
Before
AfterTrusted Brands We Service in Richmond
CleanRun crews arrive with professional-grade equipment from trade-recognized brands: Rotobrush agitation systems for mechanical debris removal, Nikro HEPA-filtered negative-pressure extractors, Honeywell measurement and monitoring tools, plus Guardsman protective and remediation products where biological contamination requires controlled application. We don’t expect customers to become equipment experts, we name these brands so you can verify specifications independently before agreeing to any scope of work. Parts and materials are stocked for Richmond’s common system configurations, which means most repairs don’t wait on supply orders.
Common Duct Repair & Sealing Problems We See in Richmond Homes

- Post-Harvey contamination in attic ductwork. Floodwater that reached air handlers in 2017 left silt and biological residue inside supply and return ducts that many Richmond homeowners never had fully remediated. Our cameras still find these contamination lines, and we document whether source removal is sufficient or replacement is required for safety.
- Sagging flex duct with condensate pooling in Pecan Grove and similar subdivisions. Thirty-five to forty years of attic heat and river-bottom humidity have degraded vapor barriers and created low points where water collects. The result is compacted debris, mold colonization, and disconnected joints that leak conditioned air.
- Disconnected retrofitted duct in downtown historic homes. Pre-1960s Richmond houses with added central air often have duct systems forced into tight chases with inadequate support. Joints separate, seams leak, and the system pulls 140°F attic air into living spaces while bleeding cooled air where it does no good.
- Accelerated biological growth from year-round AC operation. Richmond’s humid microclimate means condensation forms inside ductwork on every cooling cycle, creating conditions for mold and dust mite colonization that drier Texas cities experience far less severely. Cleaning intervals here are shorter, and remediation scope is typically more extensive.
Pricing for Duct Repair & Sealing in Richmond, TX
A typical duct sealing job in Richmond runs $280-$450 for a single system, using mastic and aerosol methods to address accessible leaks. Flex duct repair or replacement, common in Pecan Grove and 1980s-2000s subdivisions, typically falls between $380-$680 depending on linear footage and whether mold remediation is required. Metal duct repair in older Richmond homes starts around $320 for localized seam work and can reach $750+ when multiple sections need fabrication and replacement. Full duct insulation replacement after flood damage or rodent contamination generally runs $450-$820 per system.
These are whole-system prices, not per-vent teases that balloon once the crew is on-site. Every Richmond job receives a written price before any work starts, Haven Standard Clause 1, with no exceptions. We also offer a Free Second Opinion on any written estimate from another company: bring their quote, and we’ll put our number next to it in writing.
Call (346) 421-3357 for an exact quote on your Richmond home. Estimates are free.
We Also Serve Cities Near Richmond

Our crews work throughout Fort Bend County and west Houston, including Richmond and the surrounding communities of Rosenberg, Sugar Land, Katy, and Stafford. Dispatch and scheduling are coordinated from our Houston office, with local crews serving Richmond homes directly.
Serving Richmond, TX - Our Local Coverage Area
We’re based in the Richmond 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 Richmond

Replacement is required when floodwater reached the air handler and introduced silt or biological contamination that source removal cannot fully extract, or when mold penetration has compromised the duct material itself. We make this determination with camera inspection of every run, documenting contamination depth and material condition. Our photo record, with MERV 13-filtered camera ratings and written scope, has been accepted by insurers for Richmond claims because it shows exactly what was found and why replacement was necessary. Call (346) 421-3357 and we’ll inspect at no charge.
The 1980s flex duct installations in Pecan Grove used long single-story runs with support hangers spaced too far apart for the weight of the material over decades. Attic heat above 140°F degrades the vapor barrier and weakens the wire helix, while Richmond’s river-bottom humidity creates condensation that adds weight and accelerates sagging. Low points form, joints separate under strain, and the system leaks conditioned air into the attic while pulling in humid outside air. We rebuild these runs with proper hanger spacing and mastic-sealed joints.
Every flood-related job includes a Documented Photo Record of every duct run before and after work, with written scope describing contamination type, location, and remediation method, plus pressure differential readings where sealing is performed. This documentation package is delivered as a standard deliverable, not an add-on, and has been accepted by Richmond-area insurers because it directly connects the visible condition to the required work. Haven Standard Clause 4 requires this record on every visit.
Yes, when the duct material is structurally sound and leaks are at accessible joints, seams, or connections. We seal with mastic sealant and aerosol systems, then verify with pressure testing. Replacement becomes necessary when flex duct has torn vapor barriers, metal duct has corroded through, or mold penetration makes the material itself a contamination source. Your written price will specify which approach applies to your Richmond home before any work begins.
Every three to five years for standard maintenance, but sooner if you notice musty odors, visible mold near registers, or uneven cooling across rooms. Richmond’s Brazos River bottomland humidity and near-constant AC operation create condensation cycles that accelerate biological growth compared to drier Texas markets. Homes with post-Harvey flood history, particularly in neighborhoods where water reached attic systems, should be inspected regardless of interval. Call (346) 421-3357 to schedule.
Call (346) 421-3357 for a free written estimate on duct repair and sealing in Richmond. Every price is delivered in writing before work starts. Every job ends with a documented photo record. And every repair is backed by our 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Richmond and Fort Bend County since 2013.




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