Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
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After
Before
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Perris?
Duct repair and sealing in Perris typically runs $285 to $1,150, with most single-family homes landing between $420 and $780. Small leaks and disconnected joints often get sealed for under $400, while replacing crushed flex runs or sealing a whole attic system pushes toward the top of the range. The number that matters most is how much of your cooled air is leaking out before it ever reaches a room.
We quote the work in writing before anyone climbs into the attic. Call (844) 728-0966 for a free estimate; we’re a full duct repair contractor for Perris, not a clean-only shop that hands you a list of problems and drives off.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s what the line items actually cost in the Perris market this year. These are real ranges we quote, not teaser prices that grow once the technician is on the roof.
| Job | Typical Range (Perris, 2026) |
|---|---|
| Diagnostic inspection + airflow test | $75 – $150 (often waived when you book the repair) |
| Sealing individual leaks (mastic + mesh, per joint) | $45 – $110 each |
| Spot repair: reconnect or re-tape a single joint | $145 – $285 |
| Replacing a crushed or torn flex duct run | $285 – $650 per run |
| Whole-system seal (10 – 20 joints, mastic + tape) | $480 – $1,050 |
| Rerouting ductwork around an obstruction | $550 – $1,150 |
| Plenum repair at the air handler | $350 – $800 |
| New duct run added to an unconditioned room | $425 – $900 |
What moves the price up or down comes down to three things: how far the technician has to crawl to reach the problem, whether the duct is flexible or rigid sheet metal, and how much of the system is leaking versus how much needs replacing. A single disconnected boot at a bedroom register is a 45-minute fix. A house where half the flex runs got crushed during a previous attic install is a full afternoon and a material order.
One thing we tell every Perris homeowner before the quote: the diagnostic tells us whether you need a duct repair and sealing visit or just a cleaning, and we won’t sell you one when the other is the real answer.
What Affects Duct Repair & Sealing Pricing in Perris
Perris isn’t a generic market for this work. The climate, the housing stock, and how the homes were built all shape what a repair costs. Here’s what we see on quotes across the city.
- Attic temperature in the summer. Perris routinely hits 100°F-plus in July and August, and attic temps climb well past 130°F. That heat degrades duct tape and mastic joints every year, so joints that held in a cooler climate don’t hold here. We use heat-rated mastic rather than standard tape, which runs a bit more in material but lasts through the season. It’s one reason we see so many failed joints in homes built before 2005.
- The condition of the flex runs. Much of Perris’s newer housing (the developments off Ethanac Road and the Romoland side, plus the 92571 and 92570 ZIP codes) went up with flex duct strung tight across the attic. Flex crushes easily when a technician steps on it during a service call or a solar install. A crushed run has to come out; sealing around it won’t restore airflow. Replacing runs is where cost climbs fastest.
- Dust and debris load from surrounding farmland. Perris sits in a basin where wind off the March Air Reserve Base side and the surrounding dairy and agricultural acreage pushes fine dust into attic returns. Heavy dust load often means the return plenum is leaking too, and sealing that adds to the job.
- Access. Low-slope attics and tight crawlspaces cost more in labor because the technician spends more time navigating the space. A single-story home with a 6-foot attic pitch is faster and cheaper than a two-story with a knee wall and a crawl-only access hatch.
- Number of leaks found. A whole-system seal on a 12-year-old home with 15 joints runs more than a spot fix on a 2-year-old build. We count joints and quote per-joint when that’s the honest way to price it.
- Rigid versus flex. Rigid sheet-metal duct is repairable at the joint with mastic and mesh; flex is usually replaced when it’s torn. The material and labor differ.
Most of the cost is labor and access, not parts. A can of mastic is $15. The crawl to get to the joint is what you’re paying for, and we tell you that plainly.
How to Save on Duct Repair & Sealing
You don’t have to accept the first number. A few practical ways to keep the bill down without skipping the repair.
- Get the diagnosis first, not the repair. A $75 to $150 airflow test tells you if leaking is the actual problem. Half the calls we run turn out to be a dirty filter or a failing return, and repairing ducts that weren’t leaking is a waste of money. Call (844) 728-0966 and ask for the diagnostic first.
- Bundle sealing with cleaning. If you’re due for a duct cleaning in Perris, book the cleaning and sealing together. The technician is already in the attic, so the second job costs less in labor than booking it as a separate visit.
- Handle it before peak summer. A joint that’s leaking in April is a bigger leak by August. Sealing in the spring, before Perris hits triple digits, costs the same as sealing in July but saves you a month of cooling loss, and it means you’re not competing with the emergency calls.
- Ask for per-joint pricing on small jobs. If you have three leaks, don’t let anyone quote a whole-system seal. Pay for the joints that exist.
- Get the free estimate in writing. We quote before we start. So does every reputable contractor. If a shop won’t put a number on paper, that’s the sign to keep calling.
Free estimates are how we do this. There’s no charge to come out, look at the system, and tell you what it needs and what it costs.
How does a professional seal a leaking duct?
A trained technician seals joints with mastic and fiberglass mesh, not standard gray tape. Tape fails in a Perris attic within a season or two; mastic cures into the joint and stays. For flex runs, we replace the damaged section and reconnect it to the register boot. For rigid duct, we brush the joint clean, apply mastic, and wrap it with mesh before a second coat.
This is genuinely dangerous work to do yourself. Attics hit 130°F in a Perris summer, and the rafters are thin, the access hatches are tight, and a fall through drywall is a real risk. Add in the sharp edges on sheet metal and the respiratory hazard from years of accumulated dust, and this isn’t a homeowner job. We use Abatement Technologies containment and filtration gear on every job for exactly that reason: the dust that gets disturbed during repair work shouldn’t end up in your living room, and it shouldn’t end up in the technician’s lungs either.
What equipment actually gets used on a repair and seal job?
You can’t seal a duct system you can’t see, and you can’t see a duct system that’s full of debris. The process runs in a specific order:
- Inspection and airflow test. We measure static pressure at the air handler and check each register for flow. Low flow at a register that’s not blocked usually points to a leak or a crushed run upstream.
- Containment. Abatement Technologies containment gear goes up around the work area to keep dust out of the home. This is the same standard used in professional remediation work, not just routine maintenance.
- Cleaning before repair. A Rotobrush rotary brush agitates the duct walls, and a Nikro HEPA vacuum extracts what the brush loosens. Sealing over debris is sealing in dust, and that’s how you get a return of the problem within a year. Our home base on duct system care explains why the cleaning has to happen first.
- Repair and seal. Mastic, mesh, and where the job calls for it, replacement of flex runs. Plenum seams get sealed at the air handler.
- Filtration. We install and service Honeywell and Aprilaire filtration and air-quality products, so if the system needs a higher-MERV filter to match the repaired ducts, we handle that in the same visit. Ducts, filter, and vent cap, one contractor.
Your ducts are only as clean as the equipment cleaning them, and they’re only as tight as the seal on every joint. That’s the whole standard we hold the work to.
Can a crushed flex duct be repaired, or does it have to be replaced?
Crushed flex duct almost always has to be replaced. Flex is a spiral wire wrapped in foil and insulation; once the wire is bent, the duct’s inside diameter is reduced and airflow drops permanently. Sealing the outside doesn’t restore the flow. Expect $285 to $650 per run to replace it, plus the resealing at the register boot and plenum. Rigid sheet-metal duct is different: a dented or leaking joint on rigid can often be sealed for $45 to $110 per joint without replacement.
Should I seal ducts or replace the whole system?
Seal, in most cases. Duct replacement is only the right call when the majority of runs are crushed or collapsing, which is rare even in older Perris homes. A whole-system seal at $480 to $1,050 addresses the leaks that account for the majority of energy loss, and you keep the ducts you have. If a contractor quotes full replacement on the first visit without a diagnostic, get a second opinion.
Do I need duct sealing before or after cleaning?
Sealing comes after cleaning. Every time. If a technician seals a dusty system, the debris stays inside the seam and the new mastic traps it. The brush-and-HEPA process with the Rotobrush and Nikro equipment has to run first, then the repair and seal. If a shop offers to seal without cleaning, that’s a sign they don’t have the equipment to clean properly.
How long does duct sealing last in Perris?
A proper mastic seal lasts 10 to 15 years in this climate. Standard duct tape lasts one to three summers in a Perris attic before it dries and peels off, which is why so many homes built in the 1990s and 2000s have failed joints. Heat is the enemy here, and we use heat-rated material because of it. If a previous contractor used tape, it’ll need to be stripped and resealed.
Do you offer duct repair alongside cleaning in Perris?
Yes. Full-service is the point. We do air duct cleaning, dryer vent cleaning in Perris, and structural air duct repair, all under one contractor. That matters because most duct cleaners clean and walk away from damage. When we find a crushed run during a cleaning, we can repair it on the same visit rather than sending you to a second shop. And the dryer vent work isn’t an upsell afterthought; lint buildup in the exhaust line is the leading cause of residential dryer fires, and we treat it as a fire-hazard service on its own. If you’re a property manager with a multi-unit in Perris, one call covers all three services for every unit.
What if my home is in a newer Perris development?
New construction isn’t exempt. The housing that went up recently off Ethanac Road and around the Romoland side often has flex duct run tight with limited support, and joints that were taped rather than mastic-sealed. Two or three Perris summers later, those joints open. We see it regularly: homes under ten years old with measurable airflow loss at the far bedrooms. A diagnostic confirms whether it’s worth sealing. Estimates are still free.
Why does the equipment matter for a repair job?
Because a repair job is only as good as what gets cleaned before the seal goes down. A consumer-grade shop vac or a truck-mount-only setup leaves debris behind in the corners of the duct, and the seal covers it up. The Rotobrush rotary brush gets into the duct walls mechanically, and the Nikro HEPA extraction captures the loosened particulates instead of recirculating them into your home. That’s the difference between a clean seal and a cosmetic one. We invested in professional-grade gear because the outcome depends on it, and because Perris homeowners deserve proof of what was done, not just a receipt. If you’ve had a previous “whole-house special” that didn’t change anything, this is usually why.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Perris?
Whole-system sealing in Perris runs $480 to $1,050, and spot sealing of one or two joints costs $145 to $285. The exact number depends on the number of joints and attic access. Call (844) 728-0966 for a free quote; estimates are free and we put the price in writing.
Is it cheaper to repair or replace ductwork?
Repair is almost always cheaper. Replacing a single flex run costs $285 to $650; a whole-system seal costs $480 to $1,050 and keeps the ducts you already have. Full replacement only makes sense when most runs are crushed, which is uncommon. Get a diagnostic before you decide either way.
How much does a duct repair cost if only one joint is leaking?
A single joint reconnect or seal runs $145 to $285 in Perris. That covers the diagnostic, the mastic, the mesh, and the labor. It’s the smallest job we quote, and we still put it in writing. Call (844) 728-0966 to book it.
Can duct sealing lower my energy bill in Perris?
Yes. Leaky ducts in a Perris attic can lose 20 to 30 percent of the cooled air before it reaches a room, and sealing cuts that. A whole-system seal at $480 to $1,050 typically pays back in reduced cooling cost over a couple of summers in this climate. The diagnostic tells you how much you’re losing.
How long does a duct repair and sealing job take?
A spot repair takes 1 to 2 hours; a whole-system seal takes 4 to 6 hours depending on attic access and joint count. Cleaning is usually scheduled separately and adds time. We’ll give you a realistic window when we quote. Call (844) 728-0966 to schedule.
Do you repair dryer vents too, or just air ducts?
Both. Dryer vent cleaning is a dedicated service, not an add-on. Lint in the exhaust line is the leading cause of residential dryer fires, and most duct cleaners treat it as secondary. We handle it as its own job, priced separately, on the same visit if you want.
Pricing reflects the Perris market as of 2026. Duct Cleaning Perris offers free estimates; call (844) 728-0966.
Written by the team at Duct Cleaning Perris, serving Perris and the surrounding communities.
What Our Customers Say
"They photographed every return and supply before starting and sent me the file afterward. No upsell to a sanitizing treatment I didn't need."
- Stephanie Vaughn"Job was done well and the house smells better. There was some dust knocked loose around a couple of the registers that I had to wipe down afterward."
- Beatriz Hernandez"Fair price and thorough work. They ran about an hour and a half past the estimated finish time, so don't schedule anything tight after."
- Yolanda Morales