RON AIR INC

HVAC contractor in Howard County

133
Permits observed
Aug 2026
Most recent permit
1
County worked
12
Towns worked

Permits are pulled before work begins and then inspected by the county. A contractor who files them is working inside a system with an inspector in it, which is what unpermitted work avoids.

What the permits show

Of the permits we observed, 98% are HVAC work.

HVAC 131
Accessory Structure 1
Electrical 1

Typical job observed: 3 ton systems, 15 kW, 15 amp service.

Licensed as
Howard County Restricted Electrician, Maryland HVACR Contractor
Observed working in
Ellicott City, Clarksville, Columbia and 9 more
License numbers
ER 01137, 05010009509

Recent work

  • Electrical install
    August 2026 · Howard County

    Install 2 mini-split systems in existing home

  • HVAC install
    August 2026 · Howard County

    Single family dwelling / install ductless mini split system

  • Furnace install 4 tons
    July 2026 · Howard County

    Install 80K btu 90% natural gas furnace and 4 ton air conditioner

  • Furnace install
    July 2026 · Howard County

    Install 80K btu 80% LP gas furnace in attic with 4-ton heat pump

  • Heat pump install 15 kW
    May 2026 · Howard County

    Remove existing heat pump system and install new 3.5 ton heat pump and air handler with 15kw auxiliary heater.

  • Furnace install 2 tons
    May 2026 · Howard County

    Install 40k btu natural gas furnace and 2 ton air conditioner in mechanical room.

  • Furnace install 20 kW
    April 2026 · Howard County

    Remove oil furnace and install 3.5 ton heat pump and air handler system with 20kw auxiliary heater

  • Furnace install 3 tons
    April 2026 · Howard County

    Install 80K btu 90% natural gas furnace and 3 ton air conditioner

  • Heat pump install 3 tons
    April 2026 · Howard County

    Install 3 ton heat pump system in attic space

  • HVAC addition
    March 2026 · Howard County

    SINGLE FAMILY DWELLING /INSTALL HVAC SYSTEM IN ADDITION / ENERGY METHOD = Prescriptive Method

Licensing

  • Howard County Restricted Electrician Issued by Howard County.
  • Maryland HVACR Contractor Issued by Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration. Verify

Towns we observed them working in

Ellicott CityClarksvilleColumbiaDaytonGlenwoodHighlandWoodbineGlenelgLaurelWoodstockWest FriendshipMarriottsville

We hold permit records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC. Work anywhere else is not missing from this contractor's record, it is outside what we cover.

Permits by year

2023 14
2024 48
2025 45
2026 26

Our records for this contractor's counties begin August 2021. Years before that are not shown because we hold nothing for them, not because nothing happened.

What this page is, and is not

  • Howard County: 133 permits observed, from records beginning August 2021.

This page shows permits we observed in county records. Our observation is not complete: work done before those dates, in counties we do not cover, or on filings that name no contractor does not appear here. A contractor's real work is almost always greater than what we observed, and absence of a permit on this page does not mean the work was not done or not permitted. We currently hold records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC; see permit coverage for what that includes.

Common questions

Does a permit record mean this contractor is licensed?
County permit records list RON AIR INC under Howard County Restricted Electrician, Maryland HVACR Contractor. Check current standing with the issuing body before hiring.
Why do some contractors show more permits than others?
Counties began publishing at different times and describe contractors differently, so the number reflects what we observed as much as what the contractor did. It is not a ranking.
What should I still ask for?
Proof of insurance, a written contract, and the license number for the trade being performed. A permit record is a starting point, not a substitute for either.

Other HVAC contractors in Howard County

CONSTELLATION HOME
5316 permits observed
HORIZON SERVICES MD LLC
1046 permits observed
AMERICAN RESIDENTIAL SERVICES
871 permits observed
DAVE'S ELECTRIC
710 permits observed