Your heating systems should deliver consistent comfort without disruption. With MacDonald-Miller’s certified boiler technicians, you get proactive maintenance that minimizes downtime, maximizes energy savings, and ensures your systems always stay safe and compliant.
Boiler

Commercial Boiler Services
Annual Maintenance
Ensure your boiler runs safely and efficiently year-round with our Certified Boiler Technicians. We follow manufacturer-recommended protocols for both safety and performance, helping you avoid costly breakdowns and maintain optimal energy usage.
Operational Inspections
Our annual inspections cover all critical safety components, including: crack detection, safety control checks, low water cutoff valve gaskets, and waterside & fireside access. If deficiencies are found, we provide a detailed condition report and a clear proposal for repairs, so you’re never left guessing.
Combustion Analysis & Tuning
Maximize your boiler’s efficiency with precision air & gas tuning by our trained technicians. This service ensures cleaner combustion, lower energy costs, and reduced emissions.