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HVAC stands for heating, ventilating, and air conditioning. HVAC is usually used for controling the interior temperature of buildings.

There are a number of factors that can decide wheter or not to replace your unit. Depending on the age of the unit you may be able to save money by replacing it with a newer and more energy efficient unit.

There are many factors that can factor into the cost of a unit. These factors include the size of your home or office, the configuration of ductwork, and the energy source for your units. Our experienced professionals can help you determine which system is best for your needs

Many different manufacturers have different life expectancies for their products. With proper maintenance you can expect your unit to remain dependable for years to come.

There are a number of ways to ensure the best optimal operatioins and efficiency of your system:

  • The air filter in your furnace or fan coil should be expected at least once a month.  A dirty filter can cause your system to work harder than necessary and can decrease its effectiveness and increase energy cost.
  • Keep your outdoor condensing unit free of dirt and debris.  This can help the unit drain properly.
  • Make sure your outdoor unit is level.  An unlevel unit can result in incomplete draining and can cause havoc on the unit.
  • Humidifiers should be shut off and cleaned at the very beginning of the air conditioning season.


There might be nothing wrong with your heater. The actual issue can be with your faucets and shower heads. Older shower heads put out up to 5 gallons per minute. Newer shower heads only allow around 2.5 gallons per minute. Switching ot lower volume shower heads and faucets can sometimes solve the problem.

The problem here could be that your water heater's dip tube needs to be replaced.

It may be the result of a tripped high-temperature cutoff. This can be resolved by pushing the reset button. If it still does not work than it could be a faulty heating element and will need to be replaced.

There are a number of factors that can make your decision difficult. The number of people in your household, number of bathtubs/showers, or whether your water heater is a natural gas or electric unit. Our techinicians can help you determine which heater best suits your needs.

This may be due to the fact that your water lines are not properly isolated from the structural elements of your house. The simple solution could be to insert an insulating material between the pipes. If your pipes rattle when the water is turned on or off then you may need to install a water hammer arrester which will eliminate the rattling. This can be a tricky diagnosis so it's best to consult our technicians first.

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Hanna's Mechanical Contractors | 155 North Main Street Milltown, NJ, 08850 | (732) 249-4911
Service Area - Essex Mercer Middlesex Monmouth Morris Ocean Union Hunterdon