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Top-Rated Heating and air conditioning pros in Spencer - Updated Nov 2026

Avatar for Shield Mechanical LLC
Shield Mechanical LLC
5.0(
5
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+16 more

Serving Spencer, TN and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

\nShield Mechanical is a family-owned and operated HVAC contractor offering a true one-stop shop for all your heating and cooling needs. From reliable service and repairs to complete system replacements, new installations, and full new-construction HVAC projects, we deliver quality workmanship you can depend on. At Shield Mechanical, we’re committed to solutions that keep your business or home running at its best — because our mission is simple: Protect Your Comfort.\n\n

HVAC System Replacements
HVAC System Replacements
New Duct System
New Unit
Condenser 1

+21

23 neighbors recently requested a quote
Avatar for Efficiency Air
Efficiency Air
5.0(
2
)
Central A/C - Service or RepairDuctless Mini-split Heating System - Install or ReplaceGas Furnace / Forced Air Heating System - Install+3 more

Serving Spencer, TN and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"Cameron was quite knowledgeable and super skilled. This young man was absolutely professional in every way. I was impressed by his ability and willingness to go above and beyond expectations. Exceptional service. I have already recommended him for installation services. I would highly recommend him for any repair or installation services needed in the future."
Dodge Dealership
Rooftop Maintenance
Corrective Actions
Attic Corrections
After Corrections

+2

4 neighbors recently requested a quote
Devon Frazier
New to Angi
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Service or Repair+9 more

Serving Spencer, TN and surrounding areas

Approved

Hello, My name is Devon Frazier, I live in Crossville TN, I'm a soldier with the Tennessee Army National Guard. I'm also a Father and a Husband. I'm looking to make some extra money. I work Full time as a Commercial HVAC Forman. With a background in Residential HVAC. I am very adept in everything from \nPlumbing \nElectrical \nLight Carpentry \nMetal working\nProject planning \nCost coordination \nHVAC\nConcrete \nGeneral construction\nAnd roof Penetrations and sealing\nJust to name a few

Frias Construction and Remodeling
New to Angi
Central A/C - Install

Serving Spencer, TN and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Frias Construction and Remodeling, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Response time1 day
Hickman Heating & Air
5.0(
6
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install

Serving Spencer, TN and surrounding areas

In business since 2023

Free estimates

Warranties offered

"They are very courteous, prompt and very efficient. This is a company you can completely rely on to get the job done on time and they left the area neat and clean. Overall very pleased with their quality of work and could not be happier with service I received. Highly recommend Hickman Heating & Air!"
Changeout
Changeout
Install
Changeout
Install

+2

Response time10 mins
Recommended by100%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

No, you don’t need a ductless unit in every room. Ductless AC units don't work the way that window units do, where the air doesn't travel outside that room. The indoor air handlers all attach to the outdoor condenser. While the air doesn't travel the way that traditional ductwork would, the ductless AC units create zones so that one part of the home can be cooler than another. They can spread effectively enough that indoor units only need to be placed in main living areas.

Yes, HVAC zoning is generally considered worth the investment by both experts and homeowners. Zoned systems offer significant benefits in convenience, efficiency, and comfort by allowing you to set different temperatures for various rooms or 'zones' in your house. This ability to heat and cool only the spaces you're using leads to energy savings and lower utility bills. Zoned systems are especially effective in multi-level homes that experience temperature fluctuations, but even smaller homes can benefit from the ability to adjust temperatures more quickly. While the up-front installation cost can be high, many find it's a worthwhile long-term investment, particularly for those who plan to stay in their home for a while.

As a general rule, you should have your HVAC system professionally serviced at least once a year, though it's best to follow the manufacturer's specific recommendations. Many experts suggest twice-yearly maintenance: once in the spring for the cooling system and once in the fall for the heating system. This is especially recommended for older units, systems with recurring issues, or heat pumps that provide both heating and cooling. Regular service, which can cost between $100 and $550, keeps the system running efficiently, helps prevent costly future repairs, and saves money on utility bills.

When your HVAC technician mentions recharging your home AC unit, they’re referring to the process of topping off the unit with refrigerant, so the levels are properly maintained and pressurized. Normally, a properly functioning AC unit doesn’t need additional refrigerant, but AC units can develop leaks or other problems that decrease the amount of refrigerant needed.

The Spencer, TN homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.