Our warranty is valid for up to one year after the work has begun and only includes adjustments or repairs to mechanisms, units, or systems that the work was performed on. The warranty does not include a repair to systems that have been tampered with after the work has been completed. Flow-Right Plumbing & Heating Corp. reserves the right to inspect any warranty claims for evidence of tampering with relevant parts, units, systems, etc. Flow-Right Corp. reserves the right to deny a warranty claim for parts and systems not included in the originally requested service.