What makes you different?

Faith Mechanical is a local, family-owned HVAC company that focuses on clear communication, honest recommendations, and long-term system care. We take the time to understand each situation so we can come prepared, explain what we’re seeing, and help customers make informed decisions without pressure.

Our approach is centered on:

Repairing and maintaining systems whenever it makes sense, rather than pushing replacements

Transparent pricing and clear expectations before any work is done

Thoughtful scheduling and preparation to respect your time and home

Building long-term relationships through consistent, reliable service

Our goal is simple: dependable service, no surprises, and HVAC solutions that truly fit your needs.

Are financing or payment options available?

Financing is available for repairs over $500 and for system replacements with approved credit. We also offer monthly payment options for our maintenance plans that are not credit-based.

Why is my energy bill higher than usual?

Higher bills can be caused by system age, failing internal components, weather extremes, and lack of maintenance. We can help identify potential causes during a service or maintenance visit.

Do you offer free estimates?

Yes! We offer free estimates for heating and cooling system replacements. We take the time to walk through your options and answer questions so you can make an informed decision that best fits your needs.

Is there a diagnostic or service call fee?

Yes, there is a diagnostic fee for service visits. This covers travel and full diagnosis of your issue. We’ll always review findings and options as well as present all pricing before moving forward with any repairs.

How long do HVAC systems typically last in Missouri?

Most furnaces, air conditioners and heat pumps last around 10–15 years, though this can vary depending on the quality of the equipment, usage, maintenance, and environmental conditions.

How can I improve comfort and air quality in my home?

Options may include minor repairs, maintenance, upgraded filtration, humidity control, or air quality products. We’ll help you understand what might be beneficial for your home.

How often should I replace my HVAC filter?

Most standard HVAC filters should be replaced every 1–3 months, depending on the type of filter, system usage, and conditions in the home. Homes with pets, allergies, or higher system run time may need more frequent changes.

Replacing your filter regularly helps maintain airflow, efficiency, and system performance, and can reduce unnecessary strain on your equipment.

How often should my HVAC system be serviced?

We recommend having your system serviced twice a year (once for heating and once for cooling) to help keep it running safely and efficiently.

Regular maintenance can also help protect manufacturer warranties, which often require documented annual service to remain valid.

Maintenance is affordable with plans starting as low as $15 per month. It also helps prevent many costly repairs throughout the life of the equipment.

Should I repair my system or replace it?

That depends on the age, cost of repairs, safety and performance of your system. We’ll explain what we’re seeing and talk through all options.

Even if we believe replacement may be the better long-term solution, we will always present every available repair option as well. Our goal is to give you all the information (including costs, pros, and potential risks) so you can make the decision that makes the most sense for your home and your budget.

Is it better to replace one unit or the full system?

It depends on your system’s age, condition, and how the components work together. Sometimes replacing one part makes sense. Other times, a full system replacement offers better efficiency and fewer compatibility issues.

With newer refrigerants now in use, older equipment isn’t always compatible. During an estimate, we’ll explain your options, including how refrigerant changes may impact repairs, efficiency, and long-term costs, so you can make an informed decision.

How much does a new HVAC system cost?

The cost of a new HVAC system can vary depending on several factors specific to your home. During your free in-home estimate, we take the time to properly evaluate your house so the options we present are based on what your home actually needs, not just what was installed before.

We perform a full load calculation to ensure the system is sized correctly for efficiency, comfort, and long-term reliability. This helps prevent issues like uneven temperatures, high energy bills, or premature equipment failure.

After our evaluation, we provide multiple equipment options at different price and efficiency levels so you can choose the solution that best fits your comfort goals and budget.