About Us

R.F. MacDonald Co. has been in business since 1956. We are a company of 270 employees. We service and sell boilers, pumps, composites and accessories for commercial and industrial applications.

Our employees are full-time mechanical engineers, sales engineers, long-time parts salespeople and field service personnel. Allow us to assist you in your equipment selections, installation planning, layout, permitting and project supervision.

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Recent Posts

Total System Efficiency with Condensing Boilers

In condensing boilers, there is a direct correlation

Gas Technology: Condensing Hydronic Boilers

The key to 99% efficiency is having incoming

Contact Info

25920 Eden Landing Rd.
Hayward, California 94545