We provide the highest quality heating, ventilation, and air conditioning (HVAC) service and repair in the Lamar area. At Jeffries Plumbing, Heating & AC, we aim to educate and inform our Missouri customers about their heating and cooling options. You can be sure our experts are ready to provide you with maximum comfort at a great value. We service all brands and models, so call us or request service online today.

Air Conditioning

If you need a new air conditioner or replacement installed, or if your system requires repairs or maintenance, our Jeffries Plumbing, Heating & AC HVAC team is the qualified and professional crew for the job. We are ready to provide the service, repair, and maintenance you need to stay comfortable during the higher temperatures here in Lamar.

Ductless Systems

Ductless systems, also known as mini splits, offer more flexibility than traditional HVAC systems in that ductless systems do not use ductwork. They are also smaller than traditional heating and cooling systems, which means they typically use less power. Ask us about this economical and versatile HVAC solution.

Gas Furnaces

Do not get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of Jeffries Plumbing, Heating & AC professionals is here to keep your Lamar home warm and cozy. Our heating professionals repair all makes and models.

Heat Pumps

For Lamar homes with no access to natural gas, heat pumps offer an efficient, reliable solution for heating and cooling. Additionally, they provide high energy efficiency, saving you in energy costs. Ask us how a heat pump can help keep you both warm and cool.

Indoor Air Quality

Turn to your indoor air quality experts at Jeffries Plumbing, Heating & AC to help make your Lamar home healthier and more comfortable. Our team can provide a variety of indoor air quality products and solutions to help keep your home’s air clean, so you can breathe a little easier.


Hiring a qualified, experienced, and honest plumber is an important step for a Lamar homeowner. It is important to find a plumber who knows what they are doing. A plumber is responsible for parts of your house that are crucial to your daily life. We hold our plumbers to the highest standard by requiring ongoing training, education, and testing.


Many HVAC maintenance services require the knowledge, skills, and tools of a professional. In addition to changing your air filter, our Jeffries Plumbing, Heating & AC maintenance expert will perform a thorough cleaning, make any necessary adjustments, and alert you to possible concerns. Schedule regular maintenance to help keep your heating and cooling systems performing at their peak levels.

Commercial Cooling & Plumbing

When it comes to your company, keeping your commercial cooling system and plumbing in optimal working condition is imperative. Whether you are keeping your customers, patients, or employees comfortable or you have technology requiring a particular temperature, your air conditioning and plumbing needs is a priority for a successful business.

Need HVAC Service?

Contact the experts at Jeffries Plumbing, Heating & AC.

Call us at 417-682-5727!