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
See the difference
Before
After
Before
After
Before
AfterHow Much Does HVAC Cleaning Cost in St. Petersburg?
HVAC cleaning in St. Petersburg typically runs $350 to $700 for a standard single-system home, with most whole-home duct cleanings landing near $500. Larger homes, multiple air handlers, or heavy contamination push the number toward $900 to $1,400. The written estimate always sets the final price, and the estimate itself is free.
That range covers the full job: supply and return ducts, registers, grilles, the blower compartment on most systems, and the equipment to do it properly. What it doesn’t cover is guesswork, which is why we put numbers on paper before anything gets touched. Here’s what actually drives the total in St. Petersburg’s housing stock and climate.
Key Takeaways
- Standard HVAC and duct cleaning in St. Petersburg: $350 to $700 for a single system.
- Larger homes, second air handlers, or heavy debris loads: $700 to $1,400.
- Dryer vent cleaning typically adds $125 to $275.
- Duct repair, when we find separated joints or collapsed runs, runs $250 to $900 depending on scope.
- Every quote is written, itemized, and free. Call (855) 967-4983.
HVAC Cleaning Cost Breakdown (2026)
Below are typical 2026 price ranges for the St. Petersburg market. These are estimates drawn from how jobs actually scope out here, not a menu. The written estimate sets the final number.
| Service | Typical Range | What It Covers |
|---|---|---|
| Air duct cleaning, 1 system (up to ~1,800 sq ft) | $350 – $550 | All supply and return runs, registers, grilles, blower compartment, negative-air containment |
| Air duct cleaning, 1 system (1,800 – 3,000 sq ft) | $500 – $800 | Same scope, longer runs, more registers |
| Whole-home, 2+ systems or 2 air handlers | $750 – $1,400 | Multiple systems, each cleaned independently with its own containment setup |
| Return and supply plenum cleaning | $75 – $200 | Often folded into the main job; priced separately when heavily soiled |
| Register and grille cleaning (each) | $8 – $20 | Pull, wash, dry, reinstall; replaced if bent or damaged |
| Dryer vent cleaning | $125 – $275 | Full run, lint trap to exterior termination, airflow verified |
| Duct repair – reconnect or reseal a joint | $250 – $500 | Mastic seal, mechanical reconnect, support strap repair |
| Duct repair – replace a damaged run | $400 – $900 | New flex or hard duct, insulation, sealed connections |
| Mold or biological contamination treatment | $400 – $1,200 | HEPA containment, surface treatment, verification; priced after inspection |
| Post-renovation or heavy-debris cleaning | $600 – $1,500 | Drywall dust, construction debris, multiple cleaning passes |
What pushes a price up? Size is the big one, but not the only one. A 1,400 sq ft bungalow with one air handler and eight registers is a straightforward job. A 2,600 sq ft home in Shore Acres with two systems and twenty-two registers takes most of a day and twice the equipment setup. Contamination level matters just as much: a home that’s been through a renovation, sat empty through a humid summer, or housed pets for a decade takes more passes and more containment.
What keeps a price where it belongs is doing the job once, correctly. We use Rotobrush and Nikro professional systems on every job, not consumer vacuums dressed up with a business card. On contaminated jobs we bring in Abatement Technologies equipment for HEPA-level containment. That matters more in a home with an infant, an allergy sufferer, or a recent remodel.
What Affects HVAC Cleaning Pricing in St. Petersburg
- Home size and register count. Price tracks the number of runs and registers, not just square footage. St. Petersburg’s mix of 1920s bungalows in Kenwood, mid-century ranch homes across the city’s grid, and newer construction near the waterfront all scope out differently. A two-story home with a second air handler in the attic is a different job than a single-story slab home with a hallway closet unit.
- Contamination level. Every HVAC system here runs long cooling hours for most of the year, and the return side pulls in whatever’s floating in the house. Homes that closed up during a humid stretch, or that have been through drywall work, tend to need extra passes and more containment setup.
- Duct access and layout. Flex duct in an accessible attic is fast to work with. Ductwork buried in soffits, tight chases, or a low crawlspace adds labor. Older homes in Historic Kenwood sometimes have original hard duct with joints that need attention before they’ll hold a seal.
- System configuration. One air handler is a standard job. Two or three means separate containment and separate cleaning for each system, even if the ductwork shares a run.
- Whether repair is needed. Cleaning reveals what cleaning reveals: separated joints, disconnected flex runs, crushed sections, deteriorated insulation inside the duct. We can fix all of it under the same company, which means one trip, one scope, and no handoff to a second contractor.
- Filtration and IAQ accessories. Honeywell and Aprilaire filtration equipment, media cabinets, and humidifiers or dehumidifiers need to be cleaned and set up correctly, not bypassed. Familiarity with those systems is part of the quote, not an add-on surprise.
How to Save on HVAC Cleaning
The single biggest savings lever is doing it at the right time. Ductwork that gets cleaned before it’s heavily loaded costs less than ductwork that’s been pulling debris for a decade. If you’re buying a home in St. Petersburg, have the ducts inspected before you close, not after you’ve moved in and started running the system. A system that’s already in use circulates whatever’s in the ducts through every room, and the deeper the load, the longer the job.
- Get it done before a renovation starts, not after. Ducts that stay sealed off during a remodel collect far less dust than ducts that were running while tile saws and sanders were in the house.
- Bundle related work in one visit. If the dryer vent hasn’t been touched in years and the ducts are due, both in one trip saves a call-out for the same address.
- Fix obvious filter problems first. A clogged, cheap filter strains the system and pushes more debris into the return. Correct filter setup with your existing media cabinet is worth asking about.
- Check the return air path. A restricted return pulls dust from every gap it can find. Sealing the return air path is usually part of a duct repair scope, and it reduces how fast the ducts load back up.
- Ask for a written scope. A free estimate should tell you the number of registers, whether the blower compartment is included, and whether the price includes sealing what gets found. If it doesn’t list it, ask why.
We don’t quote sight-unseen over the phone, and we don’t need to. Call (855) 967-4983 and we’ll schedule a free estimate so the number you get is specific to your home.
Is HVAC Cleaning Worth the Cost in St. Petersburg?
For most homes here, yes, but not for the reason people usually assume. The value isn’t in the cost of the cleaning itself; it’s in what the system does after. St. Petersburg’s long cooling season means the air handler moves air through the same ducts for most of the year. Ducts with deteriorated insulation, cracked joints, or debris build-up make that system work harder and push dirtier air into every occupied room.
What cleaning won’t do is fix a system that has a mechanical problem. If the blower is failing or the ductwork has collapsed, cleaning alone won’t correct it. That’s why we connect cleaning and repair under one scope. We clean it. We repair it. We protect it. And what we find on inspection goes into the written estimate before any work begins.
Can Duct Cleaning Prevent a Bigger Repair Bill?
Sometimes, yes, and it’s the repair side of the job that most people miss. Debris in the return side of a system strains the blower and the evaporator coil. Coils that stay coated with dust and insulation fiber lose capacity, and a blower that fights against a clogged return can fail earlier than it should. Cleaning the ducts doesn’t guarantee anything, but it removes one of the causes that accelerates those failures.
What we find during cleaning is often more useful than the cleaning itself: a disconnected flex run in the attic pushing conditioned air into the attic instead of the bedrooms; a return chase that’s drawing air through an open wall cavity; a section of original hard duct with joints that have pulled apart. All of it can be repaired on the same visit.
What’s Included in a Standard HVAC Cleaning
A standard clean covers all supply runs, all return runs, the air handler cabinet and blower wheel where accessible, and every register and grille, pulled, washed, and reinstalled. The technician sets up containment at the air handler and at each open register before any agitation begins. Registers are sealed with foam or tape, a vacuum is connected to the main trunk, and the air is put under negative pressure. Then the ducts are agitated: a rotating brush or air whip through each branch line, followed by a high-volume sweep through the trunk. The vacuum pulls loosened debris out and traps it in a HEPA filter.
A few things to check before any crew starts: whether containment is part of the plan, whether registers will be pulled and washed or just wiped down, whether the blower compartment is included, and whether the tech will verify airflow at the extrerior terminations when the job is done. If any of those get skipped, the job is likely a surface-level pass.
HVAC Safety: What We Won’t Ask You to Do Yourself
Duct cleaning is not a homeowner task, and neither is the repair side. Deteriorated insulation, mold in a return chase, disconnected flex duct pulling air from an attic or a wall cavity, and the air handler cabinet itself are all areas where a homeowner can make a problem worse or get hurt. Cutting into ductwork while a system is running, or working around an electrical cabinet without powering down correctly, is a job for someone trained to do it.
If you suspect a problem inside your ducts (a smell, visible dust blowing from a register, a drop in airflow), the right move is an inspection, not a repair attempt. Our technicians have up to 12 years of experience with Rotobrush and Nikro equipment and the containment systems to handle heavy contamination safely.
Why Equipment Changes the Price (and the Result)
The difference between a $350 job and a $1,200 job is often not the size of the house. It’s what’s actually in the ducts and what equipment is set up to handle it. A consumer vacuum pushed through a register will knock loose some dust, but it won’t agitate the branch lines, it won’t contain the dust it releases, and it won’t touch the return chase. That’s not a clean; it’s an appearance of a clean.
We run Rotobrush and Nikro professional duct-cleaning systems on every job, and Abatement Technologies equipment where HEPA-level containment is needed. That’s the Shield standard: every job is framed around protecting the air quality of the home, not checking off a line item.
FAQs – HVAC Cleaning Cost
How much does HVAC cleaning cost in St. Petersburg?
Most standard HVAC cleaning jobs in St. Petersburg cost between $350 and $700 for a single system, with larger homes and heavy contamination pushing the total to $900 to $1,400. Dryer vent cleaning typically adds $125 to $275, and duct repair runs $250 to $900 depending on scope. Call (855) 967-4983 for a free written estimate.
Is HVAC cleaning worth it if I don’t have allergies?
It’s worth it for the system, not just the air. Cleaning removes the debris load that makes the air handler work harder, and it’s the most reliable way to find a disconnected or damaged run before it costs you a bigger repair. If the inspection comes back clean, that’s useful information too. Estimates are free: (855) 967-4983.
How long does HVAC cleaning take?
A single-system home takes about two to four hours. A home with two air handlers typically takes the better part of a day. If duct repair is part of the scope, add one to three hours, depending on how much needs to be reconnected or resealed. Call (855) 967-4983 to schedule and we’ll give you a realistic window.
Can I just clean the ducts with a shop vac?
No, and it’s not a safe substitute. A shop vac can’t agitate the duct interior, can’t maintain negative pressure across the whole system, and won’t contain what it stirs up. It can also push debris deeper into the return chase. Professional equipment is the only way to get a real clean. Call (855) 967-4983 for an estimate on a proper job.
Do I need to clean the ducts in a new construction home in St. Petersburg?
Usually yes, within the first year. Construction dust, drywall particles, and sawdust settle into the ductwork during the build, and running the system for the first time sends all of it through the house. A post-construction clean is a different scope than routine cleaning and typically runs $600 to $1,500, depending on the size and number of systems. Call (855) 967-4983 for a free estimate on your home.
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If you’re not sure whether your home needs cleaning or just an inspection, we can help with both. For a closer look at what Shield Air Duct Cleaning covers, the full service scope is on the main page. If you want the local context for the St. Petersburg area, the city page explains how we work here.
And if the air handler in your home runs hard all summer and you’ve never had the ducts looked at, the most useful call you can make is a free estimate. Call (855) 967-4983. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Pricing reflects the St. Petersburg market as of 2026. Shield Air Duct Cleaning offers free estimates – call (855) 967-4983.
What Our Customers Say
"Did the dryer vent while they were here for a small add on price. The dryer now finishes a load in one cycle instead of two."
- Jamal Grant"Quoted per system rather than the bait and switch per vent pricing everybody else in town uses. The number I was told on the phone was the number on the invoice."
- Tiana Dawson"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Priya Rao