Heat Pump Service | Oakland & Macomb County

The short answer

Start with the complete system and the evidence

Heat-pump service and replacement planning must cover both cooling and Michigan winter heating demand. Sandison reviews low-temperature output, backup heat, controls, air distribution, and electrical needs to define the appropriate system and service scope.

What Sandison evaluates

A practical path from symptoms to the right scope

Clear diagnostic process
Licensed multi-trade coordination
Repair and replacement options
Residential and commercial support

Scope and system boundary

Heat Pump Service begins with the installed system and the specific failure

Heat-pump planning considers heating and cooling load, low-temperature capacity, supplemental or dual-fuel operation, defrost, controls, ductwork, electrical demand, equipment balance point, and Michigan winter operation. Heating diagnosis follows the operating sequence through thermostat demand, power, controls, safeties, ignition or heat production, combustion and venting where applicable, blower or hydronic circulation, temperature change, distribution, and the point at which operation stops. The purpose is to identify the failed function, its effect on the property, and the accessible evidence—not to force every symptom into the same repair menu. Sandison records conditions that belong to another trade, utility, manufacturer, restoration provider, or design professional instead of hiding them inside an equipment recommendation.

Decision and verification

The heat pump service recommendation should show why the next step fits

Repair, airflow or hydronic correction, control work, maintenance, and replacement are compared using failure history, safety, measured performance, parts, age, distribution limits, and whether new equipment would inherit the same problem. Useful evidence includes fault history, temperature rise or hydronic delta, static pressure or flow observations, combustion and vent condition as applicable, electrical readings, control sequence, and verified operation after correction. The written scope separates included work, permit or inspection questions, concealed conditions, owner responsibilities, exclusions, and the verification expected after completion. Availability, exact pricing, warranty coverage, and project duration are confirmed for the actual property rather than promised by a general service page.

Primary references

Verify the local and credential information.

U.S. Department of Energy — home heating systems

Common questions

What property owners ask

What makes a heat pump suitable for Michigan winters?

The equipment's capacity at low outdoor temperatures needs to be compared with the home's heating load. Ductwork, controls, and any supplemental heat are part of that evaluation.

Can a heat pump be paired with a furnace?

A dual-fuel arrangement can combine heat-pump operation with a compatible furnace. Planning needs to address equipment compatibility, the controls that select the heat source, and how each system meets the building's demand.

Why should heating and cooling be considered together?

The same heat-pump installation serves two seasonal loads that may differ. Equipment selection, airflow, controls, and backup-heat planning should account for both rather than matching only the old air conditioner's capacity.

Evidence and review

Why this page can be trusted

Service information based on Sandison’s documented trade scope and the technical references below. Contact the office to discuss the conditions at your property.

Technical lead: James Sandison, B.S. Mechanical Engineering, Oakland University. Michigan Mechanical License 7115733 · Michigan Master Plumber 8112263 · Michigan Plumbing Contractor 800-3618. Service information record: 2026-08-28.