Festus, MO · Jefferson County
Heat Pump Replacement Based on What Your Home Actually Needs
Exactly what's wrong. Exactly what it costs. In writing.
Replacing a heat pump is more than removing the old unit and installing another one. ExactAir evaluates the existing system, your home’s heating and cooling needs, airflow, and installation conditions before planning the replacement.
Veteran-Owned · Family-Owned · EPA Certified · Fully Insured · Est. 2025
Signs Your Heat Pump Ready for Replacement
When Does Heat Pump Replacement Make Sense?
An aging or unreliable heat pump can become harder to justify when repairs increase and comfort continues to decline. These are common reasons to evaluate replacement:
- Frequent repairs — Service calls are becoming more common or increasingly expensive.
- Poor heating performance — The system struggles to keep your home warm.
- Weak cooling — Summer comfort has declined even when the system runs.
- Rising energy costs — The heat pump takes more energy to deliver the same comfort.
- Uneven temperatures — Certain rooms consistently feel warmer or colder.
- Longer run times — The system runs for extended periods without keeping up.
- Aging equipment — Older equipment may be approaching the end of its practical service life.
- Major component failure — A significant repair can be a good time to compare replacement options.
What Actually Happens During a Heat Pump Replacement
A replacement should address more than the equipment itself. ExactAir looks at the existing setup and the home’s requirements before the new heat pump is selected and installed.
Evaluate the Existing System
The current heat pump, ductwork, airflow, controls, and installation conditions are reviewed to understand what is working and what is not.
Review the Home's Requirements
Heating and cooling needs are considered so the replacement is based on the home rather than simply matching the old equipment.
Check the Installation Conditions
The existing connections, equipment location, electrical requirements, airflow, and other installation factors are reviewed before work begins.
Compare Replacement Options
Appropriate heat pump options are considered based on the home's requirements, existing setup, and practical installation needs.
Install the New Heat Pump
The old equipment is removed and the replacement system is installed and connected according to the planned configuration and equipment requirements.
Start Up & Verify the System
The new heat pump is operated through its heating and cooling functions, with system performance and controls checked before the job is complete.
Why Jefferson County Homeowners Choose ExactAir for Heat Pump Replacement
Replacement Starts With the Home
The recommendation is based on the home's heating and cooling requirements, not simply the size of the old system.
The Existing System Gets Evaluated
Ductwork, airflow, equipment condition, and installation conditions are considered before replacement.
Heating and Cooling Are Both Considered
A heat pump has to perform in both seasons, so the replacement needs to work as a complete comfort system.
Installation Is Part of the Result
Proper setup, connections, controls, airflow, and startup all matter to how the new system performs.
Owner-Level Accountability
Brett Lahue, owner and lead technician, remains directly involved in the work and the final result.
Where "Exact" comes from
ExactAir Heating and Cooling was founded in 2025 by Brett Lahue — an Army veteran who learned the trade the old way, checked off job by job under his father, a by-the-book technician himself.
When a job was done right, the answer was always the same word: “Exactly.” The name, and the standard behind it, stuck.
Today ExactAir is a small, owner-operated company serving Festus and Jefferson County — background-checked, EPA certified for both Universal and A2L refrigerants, and insured through Federated Insurance.
— Brett Lahue, Owner & Lead Technician
Heat Pump Replacement in Festus & Jefferson County, MO
ExactAir provides heat pump replacement in Festus and surrounding Jefferson County communities, generally within about 45 minutes of Festus.
Note: A trip fee applies past the standard service radius. Service inside St. Louis city and St. Louis County is currently limited, pending additional licensing there.
What Customers Say About ExactAir's HVAC Service
Frequently Asked Questions
Heat Pump Replacement FAQs
How much does heat pump replacement cost?
The cost depends on the system required, installation conditions, equipment selection, and any changes needed to the existing setup. ExactAir can evaluate the home and explain the replacement options.
How do I know if I should repair or replace my heat pump?
The decision depends on the equipment’s condition, repair requirements, performance, age, and overall replacement needs. ExactAir can explain the findings so you can compare the available options.
Will the new heat pump be the same size as my old one?
Not necessarily. The replacement should be selected based on the home’s current heating and cooling requirements rather than automatically matching the old equipment.
Can you check my existing ductwork before replacement?
Yes. Existing airflow and ductwork conditions can be evaluated as part of planning the replacement.
Can I replace my heat pump with a different type of system?
Potential options depend on the home, existing system, electrical requirements, ductwork, and installation conditions. ExactAir can evaluate what makes sense for the property.
What happens after the new heat pump is installed?
The system is started and operated through its heating and cooling functions. Controls, airflow, temperatures, and overall operation are checked before the replacement is considered complete.
When Your Heat Pump Is Ready to Go, Replace It With a System That Fits Your Home.
From evaluating the old system to sizing, installation, and startup, ExactAir focuses on getting the replacement right from the beginning.
