• NATE Quality Circle Contractor
• NATE Certified Heat Pump Installer and Service
• NATE Certified Gas Furnace Installer and Service
• Master HVAC License #2710 027443
• EPA, Universal Type I, II and III Certified
• R410A Refrigerant Certified
• Advanced Comfort Consultant Certified

• North American Technician Excellence
• Better Business Bureau of Middle Tennessee
• American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE)
• Air Conditioning Contractors of America (ACCA)
• American Society of Mechanical Engineers (ASME)
• Lawrence County, Tennessee Chamber of Commerce
• Lawrenceburg Tennessee Rotary

Flat Rate Pricing
For our customers' convenience, we are a flat rate company. Simply put, flat rate pricing provides a repair for a predetermined price. The price of the repair is based on a national average of the cost of the part and how long it should take to make the repair. This price is printed in each technician's flat rate pricing book that they will share with you BEFORE the repair is made. No matter how long the repair takes, your price remains the same.

Our Preferred Customer Agreement
Tennessee Valley Mechanical, LLC offers an array of service agreements to our clients. Service agreements include: 1) one complete 40-point cooling or 32-point heating cleanout/safety inspection on your heating or air conditioning system 2) Entitles customer to Preferred status which includes a 15% discount on future repairs as well as no overtime charges on emergency repairs; 3) Preferred customers also receive priority service over customers who do not have a service agreement (we will handle the preferred customer calls first).

Unlike our competitors the time it takes us to perform our complete spring and fall tuneup takes on average 1.5 hours.

Our 32-Point Fall & 40-Point Spring Service Checklist
Tennessee Valley Mechanical, LLC uses a 32-Point Heating Checklist and a 40-Point Cooling Checklist which is double that of most companies. When doing a tune-up, our service technicians will spend more time in your home than other companies - sometimes twice as long - but the job will be done right. Our high standards are designed to keep your equipment functioning at peak performance!

40 Point Spring Tune-Up/Check-Up
The complete description of the 40 point check-up/tune-up for a cooling/Heat pump system and the benefits that accrue are: 

	Work Performed	Benefits	Technical Comments
1.	Check thermostat	Improperly calibrated thermostat affects comfort and operating costs.
2.	Start unit	Verify unit is operational before tune-up takes place.
3.	Check return air filter	Restricted filter causes unit to waste energy and shorten compressor life.
4.	Routine cleaning of evaporator coil**	Dirty evaporator coil decreases efficiency and can lead to compressor failure.
5.	Check condensate drain**	A plugged condensate drain can cause expensive water damage.
6.	Check condensate pan and fittings for leaks	A cracked pan or loose fittings can cause expensive water damage.
7.	Check blower wheel	Dirty blowers reduce air flow; increases operating costs and can lead to compressor failure.
8.	Check blower motor stability	Dirty motors are less efficient and will fail sooner.
9.	Check blower motor amp draw	Ensures optimum performance; protects equipment.
10.	Lube motors & bearings	Improperly lubricated rotating equipment will eventually fail.
11.	Check belt, pulleys and alignment	Avoids costly service calls, saves money on utility costs.
12.	Check total electrical consumption	Ensures optimum performance; protects equipment.
13.	Examine parts for visible wear	Avoids costly service calls.
14.	Check and secure all panels	New systems have a blower door safety and will not operate if door is not properly in place.
15.	Examine all electrical connections	Extends life of system; ensures safety.
16.	Check unit disconnect switch	Worn, overheated disconnect blows fuses; potentially dangerous.
17.	Check temperature difference across coil	Temperature difference indicates production and capacity of unit. Also affects comfort level.
18.	Remove debris around outside unit	Promotes Efficiency. Prevents damage to equipment.
19.	Routine cleaning of condenser coil	Dirty condenser coils raises refrigerant pressures increasing electrical costs.
20.	Check condenser fan motor stability	Prevents costly service calls.
21.	Check condenser fan motor amp draw	Ensures optimum performance; protects equipment.
22.	Check condenser fan blades for vibration	Prevents damage to unit and costly service calls.
23.	Check reversing valve	Improperly operating reversing valve wastes energy.
24.	Check crankcase heater	Crankcase heaters that do not work lead to compressor failure.
25.	Check relays & contactors	Worn contactors and loose connections can lead to motor and compressor failure.
26.	Check capacitors	Bad capacitors lead to compressor and motor failure.
27.	Check all safety devices	Keeps unit in safe operating condition.
28.	Test time delay	Prevents unit from starting under load when power has been temporary interrupted.
29.	Check defrost assembly	A defrost timer that does not work correctly causes loss of heat and can shorten life of compressor.
30.	Check all controls	Extends the life, saves money, prevents failure.
31.	Test refrigeration metering device	Blockage or improper operations of metering device reduces cooling capacity, increases fuel costs, shortens system life.
32.	Measure operating pressures with gauges	Improper refrigerant charge can cause compressor shut down.
33.	Check noise and vibration levels	Increases comfort & extends life of equipment.
34.	Check compressor amp draw	Ensures optimum performance; protects equipment.
35.	Make final operations test	To ensure optimum performance.
36.	Wax outdoor unit**	For weather protection and extended life.
37.	Record system operation	For Home owner's information and records.
38.	Explanation of tune-up results	Explanation of work performed in tune-up and results.
39.	Advise improvements as needed	To allow you to gauge effectiveness, efficiency and potential need for repair or replacement.
40.	Conclude Transaction	Answer questions, collect for work performed, signature(s) on invoice, leave customer copy of tune-up, make appointment for any additional work required.

32 Point Fall Tune-Up/Check-Up
The complete description of a 32 point check-up/tune-up is for a gas heating system and the benefits that accrue. (Similar benefits accrue for other fuels).

	Work Performed	Benefits	Technical Comments
1.	Start unit	Essential to check operating efficiencies and comfort conditions.
2.	Inspect flue and diverter	Ensures safe operation. Flue pipe corrosion or leaks are dangerous.
3.	Clean interior of vestibule	Provides safety.
4.	Clean pilot assembly	Saves money.
5.	Adjust pilot	Saves unnecessary & costly service calls.
6.	Check thermocouple	Provides safety and helps prevent costly emergency service calls.
7.	Clean burners	Dirty burners prevent gas from being burned properly & efficiently.
8.	Adjust burners	Increased efficiency & fuel savings.
9.	Set gas manifold gas pressure	Provides safety, helps prevent costly repairs .
10.	Set burner air adjustment	It is important to have a properly adjusted furnace for fuel economy and system effectiveness otherwise useful heat that you have paid for goes up the flue.
11.	Check gas valve operation	Provides safety and prevents costly emergency service calls.
12.	Test for gas leaks	Safety check.
13.	Check thermostat	Defective or improperly calibrated thermostat affects comfort and operating costs.
14.	Check heat anticipator	Promotes comfort in home; helps prevent costly service calls.
15.	Check thermostat contacts	Saves money; increases comfort.
16.	Check safety devices	Inoperative safety controls can cause dangerous problems.
17.	Check fan control	When properly set, avoids wasting heat and improves comfort conditions.
18.	Check limit control	Keeps unit in safe operating condition.
19.	Inspect heat exchanger for leaks	Safety check for possibility of creating carbon monoxide
20.	Inspect combustion chamber	Saves money on fuel bills and promote safety and helps eliminate expensive repair.
21.	Check blower wheel	A clean blower lengthens motor life.
22.