Aftermarket Parts and Services


Extensive inventory of OEM replacement parts available for quick order, shipping and delivery. Sigma parts specialists can assist with part selection and with sourcing hard to find parts.

Inventory is updated continually to account for discontinued or modified components.



Maintenance & Service Plans
On-site technical service and help to troubleshoot complex operating issues.  We assist with upgrades and replacements.  Prescheduled, preventative maintenance service plans offered too.

Upgrades / Replacements
Providing replacement parts, upgrades for control panels and Boiler MACT compliance.

System Analysis & Energy Audits
Complete system analysis to help reduce wasted energy and bring your system into compliance with industry standards.



Retrofits services available to help optimize your heater or system performance. We can retrofit heating systems to repair damages and modernize equipment.

Let us analyze your system and recommend a custom solution that can offer cost savings over time.


close <> <>