TL;DR for Knox County
- Start with 217 public ProFix profiles mapped to Knox County, then narrow by trade, Trust Score, license evidence, and permit signal.
- Permit questions route through Knox County Building Inspection; address and hours should be confirmed before visiting if the county source record is incomplete.
- Utility coordination matters when a job touches gas, electric service, meters, shutoffs, or outage response.
- Ohio trade licensing is state-level, but permits and final inspections are local to the city, township, or county where the work happens.
Verified contractors in Knox County
Each trade panel shows up to 10 contractors ranked by ProFix Trust Score. The score weighs license evidence, published profile details, review signals, verification freshness, and permit evidence where county feeds exist.
Plumbers18
- All In One Plumbing LLCCenterburg, OH55
- Bci Mechanical Contracting Inc.Gahanna, OH55
- Beckett Plumbing & ConstructionHoward, OH55
- Brian Stafford PlumbingMount Vernon, OH55
- Gray Mechanical IncorporatedCenterburg, OH55
- Mickley Plumbing & HeatingDanville, OH55
- Monogram Homes LLCHebron, OH55
- Radiant Heat Systems LLCMount Vernon, OH55
- Rogar Plumbing Group LLCMount Vernon, OH55
- Rogar Plumbing Group LLCMount Vernon, OH55
HVAC Technicians21
- Advantage Air Heating & Cooling LLCDanville, OH55
- Ariel CorporationColumbus, OH55
- Arrow Heating & Cooling Mechanical Inc.Columbus, OH55
- Cosby Heating & Air Conditioning LLCMount Vernon, OH55
- Lapp Heating & CoolingMount Vernon, OH55
- Mac Heating And CoolingMount Vernon, OH55
- Mickley Plumbing & HeatingDanville, OH55
- Modern Comfort, LLCMount Vernon, OH55
- Radiant Heat Systems LLCMount Vernon, OH55
- Right Way Heating And Cooling LLCColumbus, OH55
Electricians20
- Arlee Capital Asset Management LLCHoward, OH55
- Chapin Electric LLCMount Vernon, OH55
- Charlies ElectricMount Vernon, OH55
- Coffing Electric LLCMount Vernon, OH55
- Comprehensive Electric LLCMount Vernon, OH55
- Heights Tower Service Inc.Bellville, OH55
- J & J Clement Electric Co. LLCBlacklick, OH55
- Kokosing Construction Co. Inc.Fredericktown, OH55
- McBRIDE-STAFFORD ELECTRIC INCMount Vernon, OH55
- Mickley Plumbing & HeatingDanville, OH55
Appliance Repair2
Gas Technicians2
Concrete Contractors3
Roofers9
- Revere Roofing CompanyFredericktown, OH20
- Shoemaker RoofingMt Vernon, OH20
- Superior Roof SystemsHoward, OH20
- Whitt Roofing & RestorationMt Vernon, OH20
- Working Class Roofing And SidingFredericktown, OH20
- Hernandez Metal RoofMt Vernon, OH15
- Kaizen Contracting & Roofing LLCMt Vernon, OH15
- Michael's Roofing & Gutter CompanyCenterburg, OH15
- Ohio Metal RoofingHoward, OH15
Tree Service68
- Skyline Tree ServiceDanville, OH20
- The Tree GuyMarion, OH20
- Native LandscapesBlacklick, OH15
- BCA Express and Bowers FarmsGenoa, OH10
- Bird Dog Forestry ConsultingSomerdale, OH10
- Blue Denim Tree ServicesMt Vernon, OH10
- Conservation Contracting, LLCGreenfield, OH10
- Davey Resource Group, IncKent, OH10
- Enviro Construction Company LLCAlexandria, OH10
- Game Plan Land ManagementKillbuck, OH10
Water/Fire/Mold Restoration0
ProFix has not mapped live water/fire/mold restoration directly to Knox County yet. Use the statewide trade hub while coverage builds.
Lead Abatement Contractors0
ProFix has not mapped live lead abatement contractors directly to Knox County yet. Use the statewide trade hub while coverage builds.
Fire Protection Contractors11
- Buckingham Electric LLCMount Vernon, OH55
- Centerburg Technology CenterCenterburg, OH55
- Certified Burglar Alarm SystemCenterburg, OH55
- Custom Wired LLC DBA Custom Wired SolutionsMount Vernon, OH55
- Freedom Fire Protection LLCHoward, OH55
- Kn Excavation LLCMartinsburg, OH55
- Pillar Fire Protection Inc.Centerburg, OH55
- Rdl Backflow & Fire LLCCenterburg, OH55
- Stellar 1 Communications Inc.Centerburg, OH55
- T & T Excavating Ltd.Centerburg, OH55
Water Well Contractors6
Septic System Contractors65
- A-1 Septic Tank Cleaning LLCWooster, OH10
- A&B Sanitation Inc.Sunbury, OH10
- Active Wastewater Systems LLCSunbury, OH10
- Advanced Septic SolutionsMillersburg, OH10
- ASC Excavating LLCLucas, OH10
- Austin's Septic LLCJohnstown, OH10
- B Young Excavating LLCMount Gilead, OH10
- Bank Sanitation LLCMount Vernon, OH10
- Beagle Hill Services LLCFrazeysburg, OH10
- Benchmark Environmental Labs Inc.Columbus, OH10
Computer & Electronics Repair1
Pest Control Services0
ProFix has not mapped live pest control services directly to Knox County yet. Use the statewide trade hub while coverage builds.
Landscapers0
ProFix has not mapped live landscapers directly to Knox County yet. Use the statewide trade hub while coverage builds.
Painters0
ProFix has not mapped live painters directly to Knox County yet. Use the statewide trade hub while coverage builds.
Foundation Repair Contractors0
ProFix has not mapped live foundation repair contractors directly to Knox County yet. Use the statewide trade hub while coverage builds.
Garage Door Companies0
ProFix has not mapped live garage door companies directly to Knox County yet. Use the statewide trade hub while coverage builds.
Permit-pull leaderboard for Knox County
ProFix ranks permit pullers where a county feed is live and matched to contractor profiles. The stat band above counts recent permits that can be assigned to this county over a rolling 365-day window.
Knox County does not have a county-specific permit-feed leaderboard yet. Use the statewide permit leaderboard while ProFix expands county crawlers.
See statewide leaderboardCounty permit office
Confirm the exact jurisdiction before work starts. Inside city limits, a city office may own the permit even when the county office is listed here.
- Address
- Address not published in the county data record; verify on the official office page before visiting.
- Hours
- Call the office before visiting; county hours can change around holidays and board meetings.
- Phone
- (740) 393-6792
- Source
- www.co.knox.oh.us
County-level contact from the ProFix county source table. For a canonical office list, start at /permits.
Open permit quick-referenceLocal utilities
These matches come from the five ProFix utility pages. Always confirm address-level service territory before a disconnect, reconnect, rebate, or emergency call.
Licensing for this county
Ohio licensing does not change county by county: OCILB covers regulated plumbing, HVAC, electrical, hydronics, and gas-related contractor scopes; Ohio Department of Health covers lead abatement, private water systems, and many sewage-system registrations; the State Fire Marshal licenses fire-protection companies; and the Ohio Department of Agriculture licenses commercial pesticide applicators. Knox County still controls local permits, inspections, and which office signs off on the address.
Population + demographics
Mount Vernon's pre-1900 brick downtown is a National Register district. Kenyon College in Gambier (north of Mt. Vernon) drives a small student-rental market.
What homeowners search for in Knox County
Who are the top plumbers in Knox County?
Start with All In One Plumbing LLC, Bci Mechanical Contracting Inc., Beckett Plumbing & Construction and compare Trust Score evidence before calling.
Open referenceHow much does a new water heater cost in Knox County?
Standard 50-gallon gas water heaters install for $1,099–$1,599 in Knox County. Tankless gas units run $2,800–$3,800. Heat-pump (hybrid) electric units $2,500–$3,500.
Open referenceHow much does a furnace tune-up cost in Knox County?
Most Knox County HVAC pros charge $89–$129 for a fall furnace tune-up. Typical price is $99. Several offer early-bird pricing in August–September that drops to $69.
Open referenceDo I need a permit for home work in Knox County?
For plumbing, HVAC, electrical, gas, roofing, lead, well, septic, and fire-protection work, assume a permit or inspection may apply until Knox County Building Inspection or the city office says otherwise.
Open referenceHow do I verify a contractor license in Knox County?
Use the Ohio eLicense Center through ProFix /verify for state-licensed trades, then confirm the local permit office for the project address.
Open referenceFAQ
What is the best way to find a contractor in Knox County?
Start with the trade panel on this page, compare Trust Score, confirm license evidence where Ohio requires it, and ask whether the contractor regularly pulls permits in Knox County or the city where the home sits.
Does Knox County license contractors?
Ohio handles most trade licensing at the state level, while counties and cities handle permits and inspections. Some local registrations can still apply, especially for roofing, right-of-way, or specialty work.
Who pulls the permit in Knox County?
For regulated trades, the contractor should normally pull the permit and schedule inspection. Homeowners should keep the permit number, scope, inspection result, invoice, and warranty in the home file.
Why do some trades have few Knox County pros?
County pages use public ProFix records. Smaller counties may have fewer direct profiles, so the page emphasizes countywide records first and routes sparse trades to statewide or nearby metro hubs.
Are permit leaderboards available for Knox County?
Knox County is not in the current county-specific permit-feed set. Use the statewide leaderboard while ProFix expands permit crawlers.
Is there a Spanish version of this Knox County page?
Yes. The Spanish county hub is available at /es/condado/knox, with the same county slug and bilingual alternates in metadata.
Cross-references
Nearest metro context, utilities, and market-level hiring notes.
All ProFix trade hubs with buyer guides, license framing, and pricing references.
Check Ohio license status before a contractor opens walls or pulls a permit.
Compare permit-pull evidence where county feeds are live.
La misma guía de condado en español para propietarios bilingües.
Public ProFix feeds for agents, researchers, and local partners.
Open data for this county
These public endpoints are designed for researchers, AI agents, and local partners. Query strings carry the county slug so consumers can request county-specific slices as feeds evolve.