Festus, MO · Jefferson County

Propane Heating Systems Sized and Serviced for Your Home

Exactly what's wrong. Exactly what it costs. In writing.

Propane heating can be a practical option for homes without access to natural gas, but the system needs the right equipment, fuel supply, airflow, and controls to perform properly.

Veteran-Owned · Family-Owned · EPA Certified · Fully Insured · Est. 2025

Signs Your Propane Heating System Needs Attention

Has your propane system started behaving differently?

Changes in heating performance can come from the equipment itself, the fuel side of the system, airflow, or controls. Recognizing those changes early gives you a chance to investigate the problem before heating becomes unreliable.

The system struggles to maintain temperature — Your home stays colder even though the thermostat is calling for heat.
The furnace starts and stops unexpectedly — Frequent cycling can indicate an operating or control problem.
The burner has trouble starting — Ignition or fuel-related issues can affect how reliably the system begins a heating cycle.
Heating takes longer than it used to — Longer run times may indicate declining performance or an airflow issue.
You notice unusual sounds — New banging, buzzing, rattling, or other noises should be investigated.
Rooms heat unevenly — Persistent cold areas can point to airflow or system performance concerns.
Fuel usage seems higher — A noticeable change in propane consumption may be a reason to evaluate system operation.
The system has become unreliable — Repeated service issues can be a sign that the equipment needs a closer evaluation.

What Happens During a Propane Heating Service Visit

We evaluate the heating system and the conditions that affect how it operates

A propane heating system has more to consider than the thermostat and indoor equipment. ExactAir looks at the relevant fuel, heating, airflow, electrical, and control components to understand what is affecting performance.

Start With the Heating Problem

We discuss the symptoms you're experiencing and operate the system to see how it responds under normal heating demand.

Review the Fuel Side

Where applicable, we inspect the relevant fuel-supply connections and system conditions that can affect proper equipment operation.

Check Ignition Operation

The burner and ignition sequence are evaluated to determine whether the furnace is starting and operating as expected.

Evaluate Airflow

We check blower operation and airflow conditions because producing heat is only part of delivering comfortable temperatures throughout the home.

Measure System Performance

Relevant temperature, electrical, control, and operating conditions are checked based on the equipment and reported issue.

Explain the Next Step

We walk you through what was found and whether the system needs routine maintenance, a specific repair, or a larger replacement evaluation.

Why Jefferson County Homeowners Choose ExactAir for Propane Heating

We look at the complete setup

Propane equipment, fuel supply, airflow, controls, and distribution all contribute to how the system performs.

Service starts with the actual symptoms

Instead of assuming the problem is with one particular component, we investigate how the system is behaving.

Comfort problems get traced back to the system

Uneven rooms, long run times, and inconsistent heating can have different causes, so we look at the conditions behind the symptom.

You get a clear explanation

We explain what was found and what options make sense before moving forward with additional work.

Local, owner-led service

ExactAir is veteran-owned and family-owned, serving homeowners throughout Festus and the surrounding Jefferson County area.

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

Propane Heating Service in Festus & Jefferson County, MO

ExactAir is based in Festus and serves homeowners throughout Jefferson County and the surrounding St. Louis Metro area, generally within about 45 minutes of Festus. If your propane heating system is struggling to keep up, operating inconsistently, or showing signs of a developing problem, we can evaluate the system and explain the available service options.

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 Heating Service

    
 
 
         
   KEITH CROWDEN 
 
 
 
 Trustindex verifies that the original source of the review is Google. Exactair did a great job installing my new Air Conditioner. Best price exceptional service I highly recommend Exact Air
  
 
        
   james blehm 
 
 
 
 Trustindex verifies that the original source of the review is Google. The technician  found what others couldn't.  He was timely and professional.  Pricing was easily affordable!  I will definitely be using them again for a new split system install. And would recommend to everyone!!
  
 
        
   Carole Kronmueller 
 
 
 
 Trustindex verifies that the original source of the review is Google. Exact AIR Is a wonderful HVAC business They are very efficient , reliable , affordable, and the best part is Brett Will give you personalized attention and make it a point if you have an emergency or not , to make it out and get you up and running. I highly recommend them, and I have shared their contact with several of my family members and friends that have asked. One other  note, it is a veteran owned company🇺🇸🇺🇸🇺🇸🇺🇸
  
 
        
   Guadalupe Rios 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a great experience with ExactAir Heating and Cooling from start to finish. Mr. Lahue  was  very knowledgeable, efficient, and made sure everything was working properly before leaving. The pricing was fair, and I appreciated the honest recommendations without any pressure to purchase unnecessary services. It's refreshing to work with a company that values quality and customer service. I would definitely recommend them to anyone looking for reliable AC repair or maintenance.  Promote Ahead of Peers.

Frequently Asked Questions

Propane Heating FAQs

Is propane a good heating option for a home?

Propane can be used for residential heating where a propane supply is available. Whether it makes sense for a particular home depends on the existing system, fuel availability, heating needs, and installation conditions.

How do I know if my propane furnace needs repair?

Poor heating, repeated cycling, startup problems, unusual noises, inconsistent comfort, or noticeable changes in operation can all be reasons to have the system evaluated.

Can a propane furnace replace an older heating system?

A propane furnace may be an option depending on the home’s existing infrastructure, fuel availability, ductwork, and installation requirements. The property should be evaluated before selecting replacement equipment.

Does a propane heating system need regular maintenance?

Yes. Regular maintenance allows the heating equipment and relevant operating components to be inspected before the system enters periods of heavier use.

Why is my propane furnace using more fuel than usual?

Higher fuel usage can have several causes, including changes in system performance, longer run times, airflow problems, equipment condition, or changes in how the home is being heated.

Can ExactAir service propane heating systems?

ExactAir can evaluate propane-powered heating equipment and determine the appropriate service needs based on the equipment and the problem being reported.

Get a clear look at your propane heating system before the next cold stretch

Monday–Friday, 7am–7pm · 24/7 emergency service available