COMMON HVAC QUESTIONS

How often should my HVAC system be serviced?

It’s recommended to have your HVAC system professionally serviced at least once a year, ideally in the spring for AC and fall for heating. Regular maintenance keeps your system efficient, prevents breakdowns, and extends its lifespan.

What are the signs that my HVAC system needs repair?

Common signs include uneven heating or cooling, strange noises, foul odors, increased energy bills, and frequent cycling. If you notice any of these, scheduling a professional inspection can prevent costly damage.

How long does a typical HVAC system last?

Most HVAC systems last 10–20 years depending on usage, maintenance, and model quality. Regular maintenance can extend the life of your system and improve energy efficiency.

Why is my air conditioner blowing warm air?

Warm air can be caused by low refrigerant, a dirty filter, blocked vents, or a failing compressor. A licensed HVAC technician can quickly diagnose and fix the problem.

What size HVAC system do I need for my home?

The right size depends on square footage, insulation, ceiling height, and local climate. An oversized or undersized system can lead to inefficiency and higher energy bills, so professional sizing is essential.

How much does HVAC repair cost on average?

Repair costs vary based on the issue. Minor repairs like thermostat replacement or refrigerant recharge can cost $100–$400, while major repairs like compressor replacement may cost $1,000 or more.

Is it better to repair or replace my HVAC system?

If your system is over 10–15 years old, requires frequent repairs, or is inefficient, replacement may save money long-term. For newer systems with minor issues, professional repairs are usually sufficient.

Why is my HVAC system making strange noises?

Rattling, banging, or squealing can indicate loose parts, debris in the unit, or motor issues. Ignoring these sounds can lead to larger, more expensive problems.

How can I lower my heating and cooling bills?

Simple steps include regular HVAC maintenance, changing filters, sealing ductwork, installing a smart thermostat, and improving home insulation. Even small adjustments can reduce energy costs significantly.

What temperature should I set my thermostat to save energy?

For summer, aim for 78°F when home and higher when away. For winter, 68°F while home and lower when away. Adjusting your thermostat by just a few degrees can save up to 10% on energy bills.

Why does my home have uneven heating or cooling?

Uneven temperatures may result from blocked vents, leaky ducts, or improper system sizing. A professional HVAC technician can balance airflow to ensure every room stays comfortable.

How often should I change my HVAC air filter?

Filters should be checked monthly and replaced every 1–3 months, depending on the type and household conditions. Clean filters improve airflow, indoor air quality, and system efficiency.

What causes poor indoor air quality in a home?

Common causes include dirty filters, mold growth, dust, pet dander, and inadequate ventilation. An HVAC system with proper maintenance and filtration can significantly improve indoor air quality.

Are smart thermostats worth it for HVAC efficiency?

Yes! Smart thermostats allow remote control, scheduling, and energy monitoring, which can reduce energy costs while keeping your home comfortable. They also extend the life of your HVAC system by reducing unnecessary strain.

What is included in an HVAC tune-up?

A professional tune-up typically includes cleaning coils and filters, checking refrigerant levels, inspecting electrical components, lubricating moving parts, and testing system efficiency. Annual tune-ups prevent costly repairs and extend system life.

How long does HVAC installation take?

Installation usually takes 1–2 days for a standard residential system, depending on complexity. Custom ductwork or system upgrades may require additional time.

Why is my HVAC system short cycling?

Short cycling (when the system turns on and off frequently) can be caused by improperly sized equipment, clogged filters, or thermostat issues. It reduces efficiency and can damage components if not addressed.

Can HVAC problems affect indoor humidity levels?

Yes. AC systems that aren’t cooling properly or have airflow issues can leave your home too humid or dry, creating discomfort and potential mold growth. Proper maintenance keeps humidity balanced.

What should I do if my HVAC system won’t turn on?

First, check the thermostat, circuit breaker, and power supply. If everything looks normal but the system still won’t start, call a licensed HVAC technician to diagnose the problem safely.

Do HVAC systems improve home resale value?

Absolutely. A well-maintained, energy-efficient HVAC system is a major selling point for buyers, as it lowers future maintenance costs and ensures comfortable living conditions.

If you have additional questions, call (757) 286-4402 or email bstogsdill.dms@gmail.com.