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For specialty contractors, the systems that run the back office rarely get much attention until something forces the issue. Payroll runs, invoices go out, and job costs get tracked — until a disruption exposes how much of the business depends on infrastructure that was never built for today’s risks.
That was the wake-up call for K&S Air Conditioning, a 125-person HVAC contractor based in Orange, California. The company had long run its accounting on a server-based system. When a ransomware attack hit, the limitations of that setup — and the importance of security and reliable access — came into sharp focus.
The questions that followed are ones many growing contractors eventually ask. How do we protect our data? How do we make sure the team can reach the system when they need it? And how do we move to a platform built for the way the business operates now?
THE CHALLENGE
When a Ransomware Attack Exposes the Limits of a Server-Based System
K&S Air Conditioning ran its financial operations on Sage 100 Contractor, a server-based system. It handled the day-to-day, but a ransomware attack brought its vulnerabilities into the open and turned two priorities into urgent ones: stronger security and more reliable access to the system.
A server-bound setup made both harder to guarantee. Data sat concentrated in one environment, and access depended on that same on-site infrastructure. For a 125-person contractor that needed its back office running dependably, continuing on the same footing carried a level of risk the team was no longer willing to accept.
THE SOLUTION
A Cloud Platform Built for Security and Access
K&S Air Conditioning chose Sage Intacct and partnered with Alliance Solutions Group to guide the transition. Moving from a server-based system to a cloud-based platform spoke directly to the two priorities the ransomware attack had surfaced — reducing security exposure and making the system reliably accessible.
Sage Intacct also anchors the broader toolset the team relies on:
- Cloud-based security and data protection — reducing the exposure that came with a server-based environment.
- Reliable access — to the system without dependence on on-site infrastructure.
- A connected foundation — linking payroll through Miter, reporting through Velixo, and field service through Sage Field Operations.
Alongside Sage Intacct, K&S is bringing field service into the same ecosystem with Sage Field Operations, with payroll handled in Miter and reporting supported by Velixo.
As with any first move to a new ERP, getting oriented to the platform took effort. Through that transition, Alliance stayed engaged and supportive, helping the team work through implementation and establish Sage Intacct as the foundation for what comes next.
THE RESULTS
A More Secure Foundation, With More to Come
K&S Air Conditioning is still early in its Sage Intacct journey, and the team is actively getting up to speed. The clearest, immediate change is structural: moving off a vulnerable server-based system onto a cloud platform directly addresses the security and access concerns that prompted the search in the first place.
The larger operational gains are still ahead, by design. The team is preparing to bring its service technicians onto Sage Field Operations, and its integration with Sage Intacct is expected to streamline field service and tighten the connection between work in the field and the back office.
“We’re hoping to see a big improvement once Sage Field Operations is integrated with Sage Intacct.”
— Elaine Ellis, Office Manager, K&S Air Conditioning
For now, K&S has what it set out to secure: a modern, cloud-based foundation that lowers risk today and is positioned to deliver efficiency as the team brings more of its operation onto the platform.
THE PARTNERSHIP
Support That Carried the Implementation
For K&S Air Conditioning, moving to a new ERP was a significant undertaking — and it followed a security incident that raised the stakes. What stood out to the team through that period was Alliance’s support.
“Alliance was very supportive during our implementation. Thank you!”
— Elaine Ellis, Office Manager, K&S Air Conditioning
For a company navigating its first major platform change, that steady, responsive guidance helped turn a difficult moment into a step forward.
THE TAKEAWAY
A Smarter, More Secure Path for HVAC Contractors
K&S Air Conditioning’s experience reflects a reality many contractors face: security and access can feel abstract until an event makes them urgent. Addressing that takes more than replacing software — it takes a cloud platform built for scale and a partner to guide the transition.
By moving to Sage Intacct with Alliance, K&S turned a disruptive moment into a more secure, cloud-based foundation — one ready to connect field and office as the team brings more of its operation onto the platform.
For HVAC and specialty contractors weighing a similar move, the takeaway is clear. The right technology reduces risk and creates room to grow. The right partner makes the transition manageable.
