Intercom System Permit Requirements in Delaware

Does Delaware require permits for intercom installation? Here's what contractors need to know about licensing, permits, and exemptions for intercom systems in the First State.

State Licensing Requirements

Delaware regulates security-related work through the Delaware State Police, Professional Licensing Section. Basic intercom work has different requirements than security-integrated systems.

When SSPSA Licensing Applies

Delaware State Police SSPSA licensing is required when:

• Intercom is integrated with burglar alarm system
• System includes access control functionality
• Work is performed as part of a security system installation

When No State License is Required

Most basic intercom work does NOT require state licensing:

• Standalone audio/video intercom systems
• Residential video doorbells
• Commercial PA and intercom systems (not security-integrated)
• Nurse call and patient communication systems

Exemptions

The following intercom work is exempt from any licensing requirements:

• Homeowners installing in their own residence
• Wireless/plug-in intercom devices
• Employees installing only for their employer
• Licensed electrical contractors (for electrical portions)

When Permits ARE Required

Delaware permit requirements vary by county and municipality:

Scenario	State License?	Local Permit?	Notes
Residential video doorbell	No	No	Wireless devices exempt
Residential hardwired intercom	No	Usually No	Low voltage exempt most areas
Apartment building intercom	Maybe	Check local	If security-integrated, SSPSA applies
Commercial building	Maybe	Often Yes	Depends on security integration
New construction	Maybe	Yes	Part of overall building permit

Delaware's Three Counties

Delaware has only three counties, each with different approaches:

New Castle County

Delaware's most populous county includes Wilmington. The New Castle County Department of Land Use handles permits. Commercial low voltage work may require permits depending on scope. Wilmington has its own licensing and permit requirements. The county follows ICC codes with local amendments.

Kent County

Kent County includes Dover, the state capital. The Kent County Department of Planning Services handles permits. Requirements are generally less stringent than New Castle County. Dover may have additional city requirements. State government buildings have their own requirements.

Sussex County

The southernmost and largest county by area. Sussex County Building Code Department handles permits. Beach communities (Rehoboth, Lewes) may have local requirements. Generally less regulation than northern Delaware. Growing commercial development in coastal areas.

Major Cities in Delaware

Wilmington

Delaware's largest city has its own licensing requirements. The Department of Licenses and Inspections handles permits and contractor licensing. Commercial work typically requires permits. Wilmington Business License required for contractors working in the city. The city follows its own building code amendments.

Dover

The state capital has moderate permit requirements. Dover Building Inspections handles permits. State government buildings have specific requirements. Legislative Hall and state facilities may require coordination with Delaware facilities management.

Newark

Home to University of Delaware. The City of Newark Building Department handles permits. University projects have institutional requirements. Commercial projects may require permits.

Commercial vs Residential

Residential Intercom

• No state license required for standalone systems
• Local permits rarely required
• Homeowners can install their own systems
• New construction includes in building permit
• Security-integrated systems may require SSPSA license

Commercial Intercom

• State license may be required if security-integrated
• Local permits often required in urban areas
• Wilmington requires contractor licensing
• Hospital and healthcare intercoms have specific requirements
• School buildings may have additional requirements

SSPSA Licensing (If Required)

If your intercom work involves security system integration, you need SSPSA licensing:

Alarm Agency License Requirements

• Submit application to Delaware State Police
• Background checks for all principals
• Insurance requirements
• License valid for 2 years

Employee Requirements

• Alarm Employee ID Card required
• Must be at least 18 years old
• No felony convictions
• ID Card valid for 5 years

Installation Best Practices

1. Determine if security-integrated: This drives licensing requirements
2. Check local requirements: Contact county or city building department
3. Wilmington special: Get city contractor license if working in Wilmington
4. Document everything: Keep records for warranty and liability
5. Follow NEC: All installations should comply with Article 725
6. Consider climate: Delaware's coastal humidity can affect outdoor components

Business Requirements

Even without specific licensing, you need:

• Delaware business license: Division of Revenue
• Local business licenses: Required in most cities
• Wilmington contractor license: If working in Wilmington
• Insurance: General liability recommended
• Workers' comp: Required if you have employees

Related Permits You May Need

Intercom installations often overlap with other systems:

• Access Control Permits in Delaware
• Security Camera Permits in Delaware
• Burglar Alarm Permits in Delaware
• Fire Alarm Permits in Delaware

Frequently Asked Questions

Do I need a license to install intercoms in Delaware?

For standalone intercoms, generally no. Delaware does not have a state low voltage license for basic intercom work. However, if the intercom is integrated with security systems (access control, alarms), SSPSA licensing may be required.

Do I need permits in Wilmington?

For commercial work, likely yes. Wilmington has its own contractor licensing requirements. Contact the Department of Licenses and Inspections for specific project requirements.

Can a homeowner install their own intercom in Delaware?

Yes. Homeowners can install intercom systems in their own residence without licensing. This applies statewide.

What if my intercom connects to a door access system?

If the intercom is integrated with access control or security systems, Delaware State Police SSPSA licensing may apply. Contact DSP Professional Licensing for clarification on specific systems.

Find Intercom Projects in Delaware

Looking for intercom installation opportunities in Delaware? LVN Signal tracks construction permits and bids across Delaware, alerting you to projects the moment they're filed.

Explore Signal

Last updated: February 2026. Requirements may change. Always verify with local building departments before beginning work.