Wilcox & Sons Heating and Air Conditioning LLC — Serving Maryland for Over 30 Years
For more than 30 years, Wilcox and Sons Heating and Air Conditioning LLC has been the trusted choice for professional HVAC installation, repair, maintenance, and construction services throughout Maryland.
We proudly serve both residential and commercial customers, delivering dependable heating and cooling solutions that keep your property comfortable in every season. Whether your air conditioner stops working on the hottest day of summer, your heating system fails during the winter, or you're planning a new construction or HVAC replacement project, our experienced technicians are ready to help.
Our greatest achievement isn't just installing or repairing HVAC systems — it's earning the trust of generations of Maryland homeowners and business owners who continue to rely on us year after year.
Federal NAICS Codes & Maryland State UNSPSC Commodity Codes
| NAICS Code | Description | Category |
|---|---|---|
| 238220 | Heating, Ventilation and Air-Conditioning (HVAC) Contractors | Specialty Trade Contractors |
| 238290 | Other Building Equipment Contractors — Boiler and Pipe Installation | Specialty Trade Contractors |
| 423730 | HVAC Equipment Merchant Wholesalers | Merchant Wholesalers — Durable Goods |
| Commodity Code | Description | Type |
|---|---|---|
| 72151000 | Boiler and Furnace Construction and Maintenance Services | Class |
| 72151200 | Heating and Cooling and Air Conditioning (HVAC) Construction and Maintenance Services | Class |
| 72151201 | HVAC Mechanical Construction Service | Commodity |
| 72151202 | HVAC Process Piping Construction Service | Commodity |
| 72151203 | HVAC Solar Energy Construction Service | Commodity |
| 72151204 | HVAC Ventilation and Ductwork Construction Service | Commodity |
| 72151205 | HVAC Refrigeration Construction Service | Commodity |
| 72151206 | HVAC Heating System Construction Service | Commodity |
| 72151207 | Heating and Cooling and Air Conditioning (HVAC) Installation and Maintenance Service | Commodity |
NAICS codes are used by Federal statistical agencies in classifying business establishments. Maryland State Commodity Codes follow the UNSPSC (United Nations Standard Products and Services Code) framework adopted for Maryland state procurement.
At Wilcox and Sons, we believe quality workmanship and exceptional customer service go hand in hand
Over three decades of HVAC expertise serving Maryland homes and businesses. Our reputation is built on honesty and results that last.
Licensed professionals committed to quality workmanship on every job — residential and commercial HVAC expertise at every scale.
Honest, upfront pricing with no unnecessary upselling. You'll always know what the job costs before we start.
We respond quickly, diagnose the problem accurately, and provide dependable solutions designed to restore comfort as soon as possible.
Preventive maintenance programs to extend the life of your HVAC system and reduce the risk of costly emergency repairs.
Emergency heating and air conditioning repair services available when you need them most — 24 hours a day.
Personalized recommendations with no unnecessary upselling. We tell you what your system actually needs — nothing more.
Our greatest achievement is earning the trust of generations of Maryland homeowners and business owners who keep coming back.
Factory-authorized installation and service for:
Representative completed projects across Maryland
| Project | Type | Scope | Year |
|---|---|---|---|
| Riverboat on the Potomac | Commercial | Rooftop packaged unit replacement via crane lift | 2023 |
| Residential New Construction — 50 Lots | Residential | Full HVAC installation on new builds | 2023 |
| Multi-Unit Apartment Complex | Residential Multi-Unit | 48-unit system replacement and ductwork | 2022 |
| Medical Office Building | Commercial | New rooftop unit, ductwork, and controls | 2022 |
| Food Service Facility | Commercial Refrigeration | Walk-in cooler and freezer installation | 2022 |
| Retail Strip Center | Commercial | Six-unit mini-split installation | 2021 |
Contact us for licensing documents, insurance certificates, references, and a complete capability package for contracting purposes.
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