Whole-home duct cleaning
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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.
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Sacramento?
Duct repair and sealing in Sacramento typically costs between $350 and $1,800 for most homes, with the average job landing around $850 to $1,200. Small, accessible leaks near the air handler usually run $250 to $500, while full-system sealing with mastic and Aeroseal-style application on a larger two-story house can reach $2,500 or more. Here’s what our technicians actually see across Sacramento County in 2026, and what you should expect to pay before you schedule anything.
Key Takeaways
- Average duct repair and sealing job in Sacramento: $850 – $1,200
- Small leak repair (one or two accessible joints): $250 – $500
- Whole-house sealing with mastic and testing: $1,200 – $2,500+
- Most jobs in Sacramento take 4 – 8 hours and are done in a single visit
- Morton’s Air Duct Cleaning provides a written price before any work starts, every time
Duct Repair & Sealing Cost Breakdown (2026)
Here’s a line-item breakdown of what duct repair and sealing costs in the Sacramento market right now. These are the numbers we use when we write estimates for houses in East Sacramento, Land Park, Elk Grove, Roseville, and everywhere in between.
| Service | Typical Sacramento Price Range | What It Includes |
|---|---|---|
| Single leak repair (accessible joint) | $250 – $500 | Mastic sealant, foil tape, visual inspection of surrounding duct |
| Multiple leak repair (3 – 5 joints) | $500 – $900 | Sealing at each leak point, pressure testing before and after |
| Whole-house duct sealing | $1,200 – $2,500+ | Mastic application at all accessible joints, boot-to-floor sealing, register reseating, before/after airflow measurement |
| Duct section replacement (per 10-foot run) | $280 – $450 | Removal of damaged flex or rigid duct, new R-6 or R-8 duct, new connections |
| Boot and register resealing | $40 – $85 per register | Removal, cleaning, mastic seal at floor or wall penetration, reinstallation |
| Plenum repair (supply or return) | $350 – $750 | Repair or rebuild of damaged plenum, resealing at the air handler connection |
| Diagnostic visit with airflow testing | $95 – $175 | Pressure testing, leak identification, written estimate (fee credited toward repair if you proceed) |
These ranges reflect what we quote on a typical Sacramento single-family home: a 1,500 to 2,800 square foot house with attic ductwork, a standard split HVAC system, and the usual leaks that develop over 10 to 20 years in this climate. Homes in older neighborhoods like Curtis Park and Tahoe Park often need more sealing work than newer builds in Natomas or Folsom because the original duct installations used thinner tape and fewer fasteners.
What drives the price up or down? Accessibility is the biggest factor. Attic ductwork in a one-story ranch in Arden-Arcade is far easier and faster to reach than ducts in a crawlspace under a mid-century home in Carmichael, where every joint takes longer to reach and the tech works in tight clearance. The number of supply runs matters too: a 2,200 square foot house with 12 registers will cost more to seal than a 1,200 square foot house with 7, simply because there’s more duct to inspect and more connection points to address.
The condition of the existing ductwork is the other major variable. If the leaking joint has damaged the surrounding duct material, we may need to replace a section rather than just seal it. That’s the difference between a $400 job and a $1,500 job. We always show you what we found before we seal anything, and the written price includes everything we plan to do.
What Affects Duct Repair & Sealing Pricing in Sacramento
- Where the ducts live. Attic access in a Roseville two-story is straightforward. Crawlspace work under a 1960s ranch in Fair Oaks means more time on hands and knees, closer to the ground, and often more corrosion from Sacramento’s winter damp. Labor time drives price.
- Number of supply runs. A 1,200 square foot home in North Highlands with 6 registers needs far less sealing than a 3,000 square foot home in Granite Bay with 16. Each boot, register, and joint adds time and material.
- Age and material of the existing ducts. Flex duct from the 1990s has often degraded in Sacramento’s summer attic heat, which regularly hits 140°F in July and August. That heat bakes the outer jacket and cracks the inner liner. Repairs on brittle old duct sometimes require section replacement rather than simple sealing.
- Accessibility hazards. Older Sacramento homes in Midtown and Oak Park often have tight attic scuttles, narrow stairwells, and limited room to maneuver equipment. Safety precautions and equipment setup add time, and we’d rather take the extra hour than rush anything in a tight space.
- Whether testing is included. Some companies quote sealing only, with no before-and-after airflow verification. We include pressure and airflow testing in our whole-house sealing price in Sacramento, because without it there’s no way to confirm the leaks are actually closed. That testing equipment is part of our standard Rotobrush and Abatement Technologies setup.
- Time of year. Sacramento’s peak cooling months from June through September see the highest demand for duct work, since homeowners notice weak airflow when the AC runs hardest. Off-peak booking in late fall or early spring often gives you more scheduling flexibility, though our pricing stays the same year-round.
Is Duct Sealing Actually Worth It in Sacramento?
For most Sacramento homeowners, yes. Leaky ducts lose conditioned air into the attic or crawlspace before it ever reaches your living room. That means your AC works harder from June through September, when daytime highs regularly exceed 95°F, and your furnace works harder on cold December nights. The Sacramento Municipal Utility District (SMUD) has published data showing that residential duct leakage commonly runs 20 to 30 percent in this region. Sealing those leaks means the air you pay to condition actually arrives where you want it.
You’ll typically notice three things after a proper duct sealing job. Rooms stop being 5 to 8 degrees different from each other. The HVAC system cycles less, so it doesn’t run as long or as often. And the house holds temperature better, especially upstairs in two-story homes where the upstairs ducts often leak into a furnace-hot attic.
We don’t promise specific utility savings percentages, because every house is different. What we can tell you is what we measure: leak reduction before and after the job, in cubic feet per minute. That measurement is part of our whole-house sealing package, and it’s documented in the photo and test results we share before we pack up our equipment.
How to Save on Duct Repair & Sealing
- Bundle duct sealing with a full duct cleaning. If your ducts need cleaning anyway, having both done in one visit is more efficient than two separate trips. Much of our work at Morton’s Air Duct Cleaning combines cleaning and sealing, since our Rotobrush and Nikro equipment is already in the attic and the ducts are already accessible.
- Get the diagnostic first, then decide. We offer a diagnostic visit with airflow testing that gives you a clear map of where your leaks are and what the repair will cost. The diagnostic fee is credited toward the repair if you proceed, so you’re not paying extra to find out what’s wrong.
- Seal obvious accessible leaks yourself only if they’re truly minor. Small gaps at a visible register boot in a closet, for example. But avoid climbing into the attic to seal ductwork if you’re not comfortable with heights, heat exposure, or tight spaces. Sacramento attics in summer are genuinely dangerous: 140°F or hotter is common, and heat exhaustion happens fast. Leave attic work to someone trained for it.
- Watch for off-peak scheduling. Our pricing doesn’t change by season, but your scheduling flexibility may. Booking in October or March gives you more choices of appointment time, and a calmer schedule for everyone.
- Ask for a written quote by phone or in person before you commit. This is the biggest saver: know the full price before work begins. Morton’s provides a written price on every visit before any work starts, no exceptions. Call (279) 239-4171 for a free estimate and you’ll know exactly what to expect.
How Morton’s Air Duct Cleaning Approaches Duct Repair and Sealing
Our process starts with a walkthrough of your home and a look at the ductwork. We identify where the leaks are, we show you what we found, and we write up a price. That written price comes before any work begins, every single time. If the job turns out to be smaller than our estimate, you pay for the smaller job. If it’s bigger, we pause and show you before continuing. That’s how we’ve run things since 2005, when Morton’s Air Duct Cleaning became part of the Cedarwell family of independently owned companies.
Our technicians arrive in uniform, with shoe covers and drop cloths in hand before they walk in the door. Floors, furniture, and pet areas are protected from the first step. We use professional-grade equipment from Rotobrush, Nikro, Honeywell, Aprilaire, Abatement Technologies, and Guardsman. In a house with kids and pets, that matters: our tools are quieter during nap hours, we use pet-safe product choices where available, and we treat the home like it has a toddler asleep down the hall and a dog watching from the living room rug.
Every completed job includes a photo of the clean-up before the crew leaves. You see proof that the workspace is left better than we found it. And every job is covered by our 365-Day Done Right Promise: if the seal doesn’t hold or something isn’t right, we make it right. That’s the Cedarwell Care Promise on every visit, not just a marketing line.
Duct Repair & Sealing in Sacramento is a service we provide as a core part of what we do. If you’re still deciding whether your house needs it, start with home and explore what we offer, then call us to talk through what you’re noticing.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Sacramento?
Whole-house duct sealing in Sacramento runs $1,200 to $2,500 for most homes. A single accessible leak repair costs $250 to $500. The exact price depends on how many ducts you have, where they’re located, and how much of the existing duct needs replacement rather than just sealing. Call (279) 239-4171 for a free estimate with written pricing.
Is it cheaper to repair or replace ductwork?
Repair is almost always cheaper than replacement. Sealing leaks costs $1,200 to $2,500 on average in Sacramento, while a full duct replacement typically runs $4,000 to $9,000 or more. Replacement makes sense when the ducts are rusted through, collapsed, or badly degraded by Sacramento’s hot attics. If the duct structure is intact and the problem is just leaks, sealing is the better financial call.
Can duct sealing lower my energy bills?
In Sacramento, where SMUD reports typical residential duct leakage of 20 to 30 percent, sealing can meaningfully reduce how hard your HVAC system works. We don’t promise a specific percentage savings on your utility bill, but our before-and-after airflow measurements show exactly how much conditioned air is no longer escaping into the attic or crawlspace. That reclaimed air is air you’re no longer paying to waste.
How long does duct sealing take?
Most whole-house duct sealing jobs in Sacramento take 4 to 8 hours, depending on the number of ducts and whether the access is attic or crawlspace. Single repairs can be done in 1 to 2 hours. We’re usually in and out the same day, and we’ll give you a time estimate with your written price before we start.
Do you offer free estimates for duct repair in Sacramento?
Yes. Morton’s Air Duct Cleaning provides free estimates on duct repair and sealing in Sacramento and surrounding areas. Call (279) 239-4171 any time, day or night. A live person answers the phone, and we’ll schedule a time to assess your ducts and give you a written price before any work starts.
Get a Free Duct Repair & Sealing Estimate in Sacramento
If you’re noticing uneven temperatures between rooms, weak airflow from certain registers, or a furnace that seems to run constantly, your ducts may be leaking. The fastest way to know what you’re dealing with is a diagnostic visit with airflow testing, and the diagnostic fee is credited toward the repair if you proceed. Morton’s Air Duct Cleaning has served Sacramento since 2005 with background-checked technicians, professional Rotobrush and Nikro equipment, and a written price before any work begins. Call (279) 239-4171 for a free estimate and we’ll walk you through exactly what we’ll do and what it will cost before anyone touches anything.
Pricing reflects the Sacramento market as of 2026. Mortons Air Duct Sacramento offers free estimates – call (279) 239-4171.
Written by Paul Adeyemi, Owner at Mortons Air Duct Sacramento, serving Sacramento since 2005.
What Our Customers Say
"They cleaned our ducts and the dryer vent. What I appreciated was how careful they were moving furniture back exactly where it was. Took before and after photos of each vent too."
- Hiroshi Tan"Spotless work. They laid drop cloths everywhere and I was honestly impressed there was zero mess at the end. Showed me the dirt they pulled out so I could see it was worth it."
- Shelby Dunham"New house, old dusty ducts. They were gentle in the house, laid down drop cloths, and double checked every register was sealed back up. Air smells fresh now."
- Scott Hemmings