Commercial Air Duct & HVAC Cleaning in Columbus, OH — Service-Tech Corporation
NADCA-standard source removal for the buildings coupon cleaners can't touch — schools, government buildings, hospitals, offices, and plants across central Ohio, documented so you can prove the work was done.
- NADCAMember since 1990
- 100,000+Facilities serviced since 1960
- 4.9Rated across 111 Google reviews
- Veteran-ownedUS Army veteran ownership since 2019
Service-Tech Corporation provides commercial air duct and HVAC cleaning in Columbus, OH — dispatched from our staffed Gahanna office, serving this market since around 1980. A NADCA member since 1990, we clean commercial and institutional air systems to the NADCA ACR source-removal standard: mechanical agitation, negative-pressure containment, and photo-documented verification. If you manage a school district, a state office building, a hospital, a logistics facility, or a multi-tenant property, this page describes the version of duct cleaning built for you — not the $299 coupon version that dominates Columbus search results.
Why Commercial Duct Cleaning Isn't a $299 Service
Search "air duct cleaning Columbus Ohio" and the results are Groupon deals and residential outfits advertising whole-house cleanings at $299. Those are real services — for houses. A commercial building is a different machine, and the price difference is the scope difference:
| $299 residential cleaning | Commercial project (Service-Tech) | |
|---|---|---|
| The system | One furnace, one thermostat, a few hundred feet of flex and trunk | Multiple AHUs, VAV boxes, risers, RTUs — thousands of feet of duct serving hundreds of occupants |
| Equipment | Portable vacuum and rotary brush | Negative air machines with HEPA collection, mechanical agitation tools, manual-entry cleaning in large-bore duct |
| Containment | None needed | Zone isolation and negative pressure so occupied areas never see the dust |
| Labor | Two techs, half a day | Crews, lifts, night/weekend phasing around occupancy |
| Deliverable | Receipt | Post-clean inspection report with photos — evidence for boards, tenants, and inspectors |
| Standard | None | NADCA ACR |
When a $299 operator quotes your 80,000 sq ft building, one of two things is true: the price will change, or the scope will quietly shrink to the registers. Commercial air duct cleaning with Service-Tech starts at $1,375 and is scoped honestly from a site assessment.
What a Commercial Duct Cleaning Scope Includes
- Supply and return ductwork — trunks, branches, and risers, cleaned by mechanical agitation under negative pressure
- Air handling units — interiors, blowers, and drain pans, so clean duct isn't re-contaminated by a dirty unit
- Coil cleaning — restoring heat-transfer surfaces and design airflow
- VAV and terminal units — the distributed components serving individual zones
- General and process exhaust — including plant and warehouse exhaust systems
- Access door installation — permanent access where the system was built without it
- Optional Aeroseal duct sealing — computer-verified leakage reduction after cleaning
Full technical depth lives on the commercial air duct & HVAC cleaning hub; what follows is the Columbus-specific picture.
Duct Cleaning for Columbus Institutional Buildings
The state capital's building stock skews institutional, and each buyer type has a distinct compliance driver:
- Schools and universities. District facilities teams and campus operations (up to OSU scale) face parent, board, and stakeholder scrutiny over indoor air quality. Cleaning is scheduled into summer and break windows, and the photo-documented NADCA ACR report is precisely the artifact that ends an IAQ controversy at a board meeting.
- Government and state office buildings. Public-sector procurement needs specified standards and verifiable deliverables. A defined ACR scope with documented verification fits a public bid; "duct cleaning, lump sum" does not.
- Healthcare. Hospitals and clinics need negative-pressure containment, phased scheduling around clinical operations, and closeout documentation their infection-control committees can file.
- Logistics and light industrial. The metro's warehouse boom built thousands of RTUs and exhaust systems now aging into their first cleanings — often bundled with industrial cleaning in Columbus for the structure above them.
- Critical environments. For data-center and controlled-space projects in the New Albany corridor, we scope supply-air system cleaning to the cleanliness specification your commissioning agent or facility standard sets — assessed and quoted per project.
The NADCA ACR Process on a Columbus Project
- 01
Inspection and scoping
Representative duct sections, AHUs, and coils are inspected; the scope is defined by system and zone before the quote.
- 02
Access planning
Missing access doors are installed so every scoped section is reachable — the step coupon operators skip because their price can't carry it.
- 03
Containment
Work zones are isolated under negative pressure with HEPA-filtered collection; occupied floors stay clean and occupied.
- 04
Source removal
Mechanical agitation matched to duct construction — including manual entry in large-bore duct — physically removes settled contaminant.
- 05
AHU and coil service
Units are cleaned so the system starts clean end to end.
- 06
Verification and reporting
Post-clean inspection with photo documentation, delivered in a report your board, agency, or tenants can read.
When to Put Duct Cleaning on the Calendar
NADCA's guidance is assessment-driven — inspect on a rhythm suited to the building, clean when inspection shows need. For Columbus buildings, the practical triggers: IAQ complaints (the most common start of a commercial project), post-construction dust after renovation or fit-out, visible discharge at diffusers, unexplained airflow or energy drift, tenant turnover, and — for schools — the summer window when the building is finally empty enough to work efficiently. Healthcare assesses most frequently; offices are inspection-first with slower loading; plants and warehouses are driven by process load.
A Scoping Checklist for Comparable Bids
The fastest way to burn a duct-cleaning budget is comparing bids that aren't for the same work. Before you solicit quotes for a Columbus building, require every bidder to answer the same six questions:
- Which systems and zones are in scope — by AHU, floor, and riser, in writing?
- Is the method source removal per NADCA ACR (agitation + negative-pressure collection), or "air washing"?
- What containment will protect occupied areas, and is collection HEPA-filtered?
- Are coils and AHU interiors included, or duct only?
- Who installs missing access doors, and at whose cost?
- What does the closeout deliverable contain — photos, systems covered, verification method?
Any bid that can't answer all six isn't cheaper — it's smaller, and you'll pay the difference later. Our estimates arrive with these answers already in writing.
IAQ Complaints: The Most Common Columbus Trigger
Most commercial duct projects in this market don't start with a maintenance plan — they start with a complaint. A floor that smells musty every Monday, dust streaks at the diffusers, an employee-health question that reaches HR, a tenant threatening a lease clause. When that complaint lands on your desk, the sequence that protects you is: inspect first, then act on evidence. Our assessment documents actual system condition — duct loading, liner state, coil condition, AHU hygiene — so your response to the complaint is a report and a scoped fix, not a shrug or an unnecessary building-wide project. Sometimes the finding is that ductwork isn't the source at all, and that answer, in writing, is worth as much as a cleaning. Either way, the complaint gets an evidence-based close instead of a recurring seat at every staff meeting.
Coils, Access Doors, and Aeroseal: The Scope Items That Decide Results
Three line items separate a duct cleaning that changes how a building runs from one that changes nothing:
- Coil cleaning. A spotless duct feeding air through a fouled coil is half a project. Coils are where airflow is throttled and where energy loss concentrates — matted coil faces force fans to fight for every CFM. We clean AHU coils as part of commercial scope so the system's bottleneck is actually addressed, not bypassed.
- Access doors. Most under-cleaned Columbus buildings aren't under-cleaned by negligence — they're under-cleaned because whole duct sections were built without access. Every door we install is a permanent asset: this cleaning reaches everything, and so does the next one. Doors are quoted transparently during scoping, never discovered as a change order.
- Aeroseal duct sealing. Cleaning restores the inside of the duct; sealing addresses what leaks out of it. Where assessment shows meaningful duct leakage — common in older institutional systems — optional Aeroseal sealing closes leaks from the inside with computer-verified before/after leakage numbers. For buildings chasing energy targets, it's the natural companion scope while systems are already contained and accessible.
Not every building needs all three; the assessment says which apply, and the quote prices them separately so your approval chain sees exactly what it's buying.
What Commercial Duct Cleaning Costs in Columbus
Commercial air duct cleaning starts at $1,375. Industrial and process-exhaust duct scopes are quoted after a free site assessment. Project totals scale with four drivers: system size and duct footage, access (existing doors versus installation), contamination level, and liner type — fiberglass-lined duct needs gentler contact methods than bare metal. Travel is factored into the quote; no separate surcharge.
The Operating Cost of Dirty Ductwork
Duct loading taxes a building quietly: fans work harder to push air through narrowing passages, energy bills drift up, and comfort complaints multiply at the far ends of starved runs. Dust on lined duct holds moisture and becomes a mold amplification site. In schools and public buildings, unaddressed IAQ complaints escalate into board items and press inquiries; in healthcare, into inspection findings. And fouled coils and fans fail early — turning maintenance money into capital money. Cleaning is the modest intervention on that curve — and the only one that resets it rather than merely coping with it.
Columbus Duct Cleaning Backed by 66 Years and a NADCA Membership
Service-Tech Corporation — founded 1960, family-owned until 2019, veteran-owned since, NADCA member since 1990 — has served Columbus since around 1980 from our Gahanna office at 625 Cross Pointe Rd, rated 4.9 across 111 Google reviews. See the full local lineup on the Columbus, OH hub, pair duct work with cooling tower cleaning in Columbus in the same maintenance window, or compare markets: commercial air duct cleaning in Cleveland and commercial air duct cleaning in Dayton.
Get a commercial duct-cleaning quote that answers the scoping checklist before you ask. From $1,375, documented end to end.
What Your Scope of Work Should Specify
Columbus runs on newer buildings than Cleveland — distribution centres, data halls and institutional campuses built in the last thirty years — and the problem is rarely age. It is that a system commissioned clean has never been opened since, while the filter regime around it has changed twice. Crews dispatch from our Gahanna office.
- Method to specify. Source removal to the NADCA ACR standard: mechanical agitation with the system held under continuous negative pressure, HEPA capture at 99.97% of particles at 0.3 micron.
- Acceptance figure to demand. No more than 0.75 mg of residue per 100 cm² on the NADCA Vacuum Test, in writing.
- Interval to plan against. Annual on air handling units, every 1–2 years on supply and return ductwork, with ASHRAE 180 as the programme basis.
- Filtration on reassembly. MERV 8 or better, with relative humidity held between 30–60% to stop biological re-fouling.
- Liner decision. A fibreglass liner that sheds under light pressure is encapsulated or replaced, never brushed.
Reading a Duct System Before Quoting It
A survey settles what a walk-through cannot. A borescope on a rod shows the interior of runs beyond arm's reach; a swab sample weighed against the NADCA figure turns "looks dusty" into a number; and pressing a lined run tells you whether the liner will survive brushing or has already begun to delaminate. From there the method follows: rotary brushes agitate bare metal, compressed-air whips work lined runs more gently, and everything dislodged is extracted through the negative-air unit rather than left to settle. Coil fins are straightened back to plane, and the air-handler plenum, drain pan and fan housing are opened — those foul faster than the duct they feed and are the components most often skipped.
Frequently Asked Questions
What does commercial air duct cleaning cost in Columbus?
Commercial air duct cleaning starts at $1,375, with the project total driven by system size and duct footage, access, contamination level, and liner type. Industrial and process-exhaust scopes are quoted after a free site assessment. Travel is factored in — no separate surcharge.
Why do commercial quotes cost more than the $299 residential deals I see?
Because they're different services. Residential deals cover one furnace and a few hundred feet of duct with portable equipment. A commercial project covers multiple air handlers, risers, and VAV zones with negative-pressure containment, mechanical source removal per NADCA ACR, night/weekend phasing, and photo-documented verification. A $299 operator in a commercial building either raises the price or shrinks the scope.
Can you clean school ductwork over summer break?
Yes — summer and break windows are how most of our school and university projects run. The building is empty enough for efficient crew work, containment is simpler, and the photo-documented closeout report gives your district a stakeholder-ready answer to IAQ questions before the school year starts.
Do you work in occupied office and government buildings?
Yes. Zones are isolated under negative pressure with HEPA-filtered collection, and work is phased by floor and after-hours so tenants and staff never share space with the dust. Public-sector buyers get the defined scope and verifiable deliverables their procurement process requires.
What documentation comes with the project?
A post-clean inspection report with photo documentation, organized by system and zone — evidence you can hand a school board, an agency, an infection-control committee, or a tenant. Access doors installed during the project are documented for your maintenance records.
Do you clean the ductwork in warehouses and plants around Columbus?
Yes — RTU, general-exhaust, and process-exhaust systems in the metro's logistics and manufacturing stock are regular work for our Gahanna crews, often bundled with high-bay structure cleaning so the building and its air systems come clean in one mobilization.