Levelset is the most construction-specific vendor on this list and the one HVAC contractors reach for when residential and commercial jobs start including builders, GCs, and property owners whose payment practices are uncertain. The platform automates preliminary notices, generates and tracks conditional and unconditional lien waivers, files mechanic's liens, and provides a research database of state-by-state lien deadlines.
A typical HVAC use case: a shop sends preliminary notices automatically on every commercial job above a threshold, which signals to the GC and owner that payment is being tracked. If an invoice goes past due, the shop escalates to an intent-to-lien notice, and finally to a mechanic's lien filing through Levelset's attorney network.
Since being acquired by Procore in 2021 for around $500 million, Levelset has deepened its integration with Procore's project management tools.