HVAC Installation – The Expertise of HVAC Contractors

HVAC Installation – The Expertise of HVAC Contractors

When a new HVAC installation system is installed, it requires the expertise of many professionals. The process includes taking measurements to ensure that a replacement is the right size for the home; directing sheet metal fabrication experts, electricians, and pipefitters to execute work; and connecting the new equipment to the ductwork, evaporator coil, furnace, and outside unit.

Installation Process

When installing new HVAC equipment, it is important to follow the process correctly. An improperly installed system can cause respiratory problems and other health issues in a home. It can also damage the equipment.

The first step is to perform a thorough site evaluation. This allows the HVAC contractor to determine the specific needs of the space. It involves taking accurate measurements of the area, ceiling height, number of windows, and door types. This information is used to design an HVAC system that fits the space perfectly.

The next step is to repair or replace ductwork as needed. If the project is extensive, this may take a significant amount of time. Once the ductwork is ready, the crew can install the new equipment to the manufacturer’s specifications. This may include air handlers or evaporators inside the house, outdoor compressors or condensing units, and new refrigerant lines. They will also install a new service disconnect box, and upgrade the electrical wiring as necessary.


Ducts are the main channel through which warmed or cooled air flows from your HVAC equipment to the rooms of your home. They consist of a large trunk, called a duct take-off, and individual pipes that connect to it and branch out to each room. Other parts of the duct system include a supply-side plenum box, return plenum boxes, and a blower fan.

Ductwork is usually made from galvanized steel or aluminum, with insulation to control the temperature of forced air and prevent moisture build-up. It must be sealed to reduce leaks, which can waste energy and cause your system to run less efficiently.

Rough-in consists of installing the start collars, assembling the ducts according to the plan, and attaching them to vent covers and other parts of the system. It also involves sealing seams using aluminum tape and insulating the ducts in areas where they pass through walls and attics. It may also involve installing a dehumidifier if your system uses it to remove excess moisture from the air.


A furnace is a key component in HVAC installation. Furnaces create heat by burning a fuel source like natural gas or propane. This heat is then distributed throughout the home or building via ductwork.

A faulty furnace can cause a number of issues including safety sensors and switches that wear out or malfunction. A technician must be able to diagnose these problems to ensure the safety and proper operation of your new system.

A new air conditioner comes with an evaporator coil that can either be cased or uncased. A cased coil sits on top of the furnace and makes it easy to install, maintain, and repair. An uncased coil requires more complicated preparation to ensure it fits correctly. This may result in additional charges beyond your initial estimate. Your technician should keep you apprised of these additional costs as they arise.

Heat Pump

A good HVAC contractor should know how to properly install a heat pump in a home or business. They should also be able to answer questions about a customer’s specific heating needs and home comfort preferences.

It’s important for a technician to calculate a property’s heating load worth before installing an HVAC system. This ensures that the unit is the correct size for the home, reducing energy consumption and improving indoor air quality.

Leaky homes that aren’t well-insulated can wreak havoc on energy efficiency, even with the most cutting-edge systems. As such, many contractors offer to help homeowners with other improvements that will improve energy efficiency along with their new HVAC installation.

Manufacturers like Carrier, Daikin, LG HVAC, and Mitsubishi / Trane have programs that allow contractors to become certified installers for their products. This gives homeowners extra peace of mind and helps them get the best value for their money. Additionally, these manufacturers often offer warranties and rebates that can be beneficial for homeowners looking to save.

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