Frequently Asked Questions

Most HVAC systems should be serviced at least once per year, ideally before heavy use seasons. Regular maintenance helps extend equipment lifespan and ensures optimal performance. At Roberts Mechanical, we recommend scheduling heating checks in fall and cooling checks in spring to prevent unexpected breakdowns.

Common warning signs include unusual noises, inconsistent heating, increased energy bills, frequent cycling, and yellow pilot light flames instead of blue. These issues often indicate problems with igniters, blowers, or heat exchangers. Addressing furnace issues early prevents more costly repairs and ensures safe operation during Utah's cold winters.

Proper AC sizing requires calculating your home's square footage, insulation quality, window placement, and local climate conditions. An undersized unit won't cool effectively, while an oversized system cycles too frequently and wastes energy. At Roberts Mechanical, we perform detailed load calculations to ensure correct sizing for Orem-area homes.

Common causes include refrigerant leaks, dirty air filters, frozen evaporator coils, faulty compressors, or thermostat issues. Low refrigerant is especially problematic and requires professional repair. Regular filter changes and annual maintenance help prevent many cooling failures, especially during Utah's hot summer months.

Consider replacement if your furnace is over 15-20 years old, requires frequent repairs, or has lost significant efficiency. If repair costs exceed half the price of a new system, replacement is usually more economical. Modern heating systems also offer better energy efficiency, which can lower utility bills substantially.

Boilers heat water to provide warmth through radiators or radiant floor systems, while furnaces heat air distributed through ductwork. Boiler repairs often involve pumps, valves, and pressure issues, whereas furnace repairs focus on blowers, igniters, and heat exchangers. Both require specialized knowledge for safe and effective service.

Most residential AC installations are completed in one day, typically 4-8 hours depending on system complexity and existing infrastructure. Commercial installations may require multiple days based on building size and equipment specifications. At Roberts Mechanical, we ensure proper setup with thorough testing before completing any installation.

True emergencies include complete heating failure in freezing weather, no cooling during extreme heat for vulnerable individuals, gas leaks, electrical issues, or unusual burning smells. These situations pose safety risks or health concerns and require immediate professional attention. Roberts Mechanical provides 24-hour emergency service for urgent HVAC failures.

Yes, preventive maintenance can extend system life by 5-10 years on average. Regular service prevents minor issues from becoming major failures, maintains efficiency, and ensures all components operate as designed. Neglected systems experience more breakdowns and typically need replacement sooner, making maintenance a cost-effective investment.

Key cost factors include system size, equipment age, part availability, labor complexity, and whether repairs can happen during business hours. Commercial systems are typically larger and more complex than residential units, requiring specialized expertise. Emergency after-hours service and hard-to-source parts for older equipment also increase repair expenses.

Utah's temperature extremes—cold winters and hot, dry summers—put significant stress on HVAC equipment year-round. Low humidity can cause static and dry air issues, while temperature swings demand reliable performance from both heating and cooling systems. At Roberts Mechanical, we service equipment designed to handle Orem's specific climate challenges.

Neglecting air filter changes is the most common and damaging mistake. Dirty filters restrict airflow, force systems to work harder, increase energy costs, and can cause compressor failure. Filters should be checked monthly and replaced every 1-3 months depending on usage, pets, and air quality to maintain efficiency.