In-House IT vs. Managed IT: Real Cost Comparison for Johns Creek Businesses (2026)

In-House IT vs. Managed IT Cost in Johns Creek: What Local Businesses Actually Pay

Johns Creek businesses running payroll on a single in-house IT generalist are paying more than they realize. A mid-level IT administrator in Fulton County earns $65,000 to $85,000 annually before benefits, payroll tax, and PTO. That headcount covers roughly 40 hours per week, leaves gaps on nights and weekends, and provides zero redundancy when that employee is sick or quits. COMNEXIA, headquartered in Roswell, GA since 1991, delivers managed IT services to Johns Creek-area businesses at a per-device monthly cost that replaces that single point of failure with a documented, security-first service stack.

What the Real Cost Comparison Looks Like for a Johns Creek Business

The honest comparison is not salary versus managed IT invoice. It is total cost of IT ownership versus a fixed monthly contract. In-house IT means the business absorbs recruiting, hardware for the employee, training, licensing, and coverage gaps. A managed IT engagement with COMNEXIA bundles remote monitoring and management through NinjaOne (which provides continuous endpoint health visibility, automated patch deployment, and alert-based ticketing), Microsoft Entra ID conditional access configuration, SentinelOne EDR on every managed endpoint, and a help desk with tracked, documented tickets. Those components purchased separately and staffed internally cost significantly more than a co-managed or fully managed monthly contract covering the same scope.

What COMNEXIA Actually Delivers: The Service Stack

Every managed IT engagement starts with a documented onboarding process. COMNEXIA inventories every device on the network, assigns asset records in NinjaOne, baselines the patch state of Windows and third-party applications, and documents network topology before a single support ticket is opened. This step takes three to four weeks for a typical Johns Creek SMB and produces a written runbook the business owns regardless of what happens later.

• RMM and patch management: NinjaOne policies enforce monthly Windows cumulative updates and push critical patches within 72 hours of release. Third-party patching covers Chrome, Adobe Acrobat, and other high-risk application vectors on the same automated schedule.
• Endpoint protection: SentinelOne EDR deploys to every managed workstation and server, providing behavioral threat detection that goes beyond signature-based antivirus. Detections feed into a centralized alert queue reviewed by COMNEXIA's team.
• Identity and access: Microsoft Entra ID conditional access policies enforce MFA on all cloud application sign-ins and block authentication attempts from non-compliant or unmanaged devices, a control that directly addresses credential-based intrusions.
• Help desk with ticketing: Users submit tickets by email or phone to (877) 600-6550. Every ticket is logged, assigned a priority, and tracked to resolution. Monthly reports show ticket volume, categories, and resolution times so management can see where recurring problems live.
• Monthly reporting: A written monthly report covers patch compliance percentage, endpoint health summary, open versus closed tickets, and any security events detected by SentinelOne. This report is the deliverable that in-house generalists rarely produce.

Why This Matters Specifically for Johns Creek Auto Dealerships

Johns Creek and the surrounding Alpharetta and Duluth corridor are home to several franchise automotive dealerships that run CDK Global, Reynolds and Reynolds, or Dealertrack as their dealer management system. Each of those DMS platforms requires persistent network connectivity, controlled user access, and endpoint configurations that must stay within the vendor's supported parameters. A generalist in-house IT employee managing a DMS alongside general helpdesk work is stretched thin, and a misconfigured workstation can take a service lane offline during peak hours.

Dealerships also face a regulatory deadline that in-house IT is poorly positioned to document: the FTC Safeguards Rule, which requires automotive retailers that qualify as financial institutions to maintain a written information security program, conduct risk assessments, implement access controls, and provide annual employee training. COMNEXIA's managed IT service produces the patch reports, access control logs from Microsoft Entra ID, and endpoint protection records that feed directly into Safeguards Rule documentation. An in-house employee does the work but rarely produces the audit trail in the format the rule requires.

Co-Managed IT: The Middle Path for Johns Creek Businesses With Existing Staff

Some Johns Creek businesses have one internal IT person who handles projects and vendor relationships but cannot realistically manage patching, monitoring, and security response simultaneously. COMNEXIA offers co-managed IT where NinjaOne RMM access is shared, SentinelOne alerts flow to both teams, and the help desk handles tier-one tickets while the internal resource handles escalations and strategic work. This model keeps the internal hire, adds coverage, and produces documentation that survives staff turnover.

Talk to COMNEXIA Before You Renew That IT Employment Contract

If your Johns Creek business is evaluating whether to hire, replace, or supplement in-house IT, COMNEXIA can walk through a line-by-line comparison of your current IT costs against a managed services scope built around your actual device count and risk profile. Call (877) 600-6550 to schedule a no-commitment assessment with a team that has been serving Roswell, Johns Creek, and the broader Atlanta north metro since 1991.