HVAC Replacement

Top HVAC Replacement Mistakes to Avoid

Replacing an HVAC system can be a major expense, but it is a necessary investment to keep a home comfortable and energy-efficient. However, homeowners make common mistakes when doing an HVAC replacement, which can be costly in the long run. By avoiding these mistakes, homeowners can ensure that their new HVAC system runs smoothly, efficiently, and without unexpected expenses.

In this article, we will discuss the top HVAC replacement mistakes to avoid to help homeowners make informed decisions and ensure their investment pays off. We will cover topics such as choosing the wrong size HVAC unit, ignoring energy efficiency ratings, skipping regular maintenance, not considering ductwork upgrades, and choosing an inexperienced HVAC contractor. Additionally, we will answer common questions about HVAC replacement to help homeowners know what to expect.

Choosing the Wrong Size HVAC Unit

Choosing the wrong size HVAC unit for your home can lead to various issues regarding comfort and efficiency. This mistake is one of the most common by homeowners, and it can result in costly repairs or even a premature replacement of the entire system.

When selecting an HVAC unit, it is essential to consider the size and layout of your home, its insulation levels, and the number of windows. If you choose a unit that is too small for your home, it will have to work harder to maintain the desired temperature, leading to increased energy bills and decreased system longevity. On the other hand, an oversized unit will cycle on and off too frequently, leading to inconsistent temperatures and excess wear and tear on the system.

Working with a professional HVAC contractor is important to ensure you choose the right size HVAC unit for your home. They will calculate the load to determine the correct unit size that suits your home’s needs. Furthermore, they can recommend upgrades or adjustments to your home’s insulation or ductwork to optimize the system’s efficiency and performance.

Choosing the Right Size HVAC Unit: Key Takeaways

  • Choosing the wrong size HVAC unit can lead to decreased efficiency, increased energy bills, and premature system failure.
  • Important factors to consider when selecting the right size unit include the size and layout of your home, insulation levels, and number of windows.
  • A professional HVAC contractor can calculate load to determine the correct unit size for your home’s needs and recommend beneficial upgrades to improve overall efficiency.

Ignoring Energy Efficiency Ratings

Regarding HVAC replacement, energy efficiency is one of the most important factors to consider. Ignoring energy efficiency ratings in your new HVAC unit can ultimately lead to higher energy bills and less efficiency in your home’s heating and cooling system.

It’s important to look for an HVAC unit with a high Seasonal Energy Efficiency Ratio (SEER) rating. The SEER rating measures how efficiently the HVAC unit operates throughout a cooling season. The higher the SEER rating, the more energy-efficient the system will be. An HVAC unit with a higher SEER rating may cost more upfront, but it will save you money in the long run on energy bills.

Additionally, an HVAC unit with a high AFUE (Annual Fuel Utilization Efficiency) rating will be more efficient at heating your home. The AFUE rating measures the efficiency of the heating portion of your HVAC unit. A higher AFUE rating means that your HVAC unit will require less fuel to operate, which ultimately means lower bills for you.

Ignoring energy efficiency ratings can also have an impact on the environment. A less efficient HVAC unit will require more energy, which means more emissions and a greater carbon footprint. By investing in a higher-efficiency HVAC unit, you can save money on energy bills while also reducing your impact on the environment.

Skipping Regular Maintenance

Regular maintenance for an HVAC system is crucial to keep it running efficiently and avoid costly repairs or replacements down the line. Unfortunately, many homeowners skip this important step, leading to many issues.

Without regular maintenance, dirt, dust, and other debris can build up in the system, reducing airflow and causing strain on the unit. This can lead to decreased efficiency, higher energy bills, and even system failure. Additionally, regular maintenance can catch small problems before they become bigger, expensive issues.

It’s important to schedule regular maintenance with a professional HVAC specialist to ensure your HVAC system runs smoothly and efficiently. They can identify and fix any problems, perform necessary cleaning and inspections, and provide guidance on how to keep your system running at peak performance.

Not Considering Ductwork Upgrades

When replacing an HVAC system, it’s crucial to assess the condition of the ductwork to ensure optimal efficiency and comfort levels in your home. Old or damaged ductwork can increase energy bills and decrease air quality. Upgrading your ductwork during an HVAC replacement can save you money in the long run and improve your home’s overall indoor air quality.

Professional HVAC contractors can assess your ductwork and recommend upgrades or replacements based on your needs. This may include sealing leaks, insulating exposed ducts, or installing new ductwork. Investing in ductwork upgrades during your HVAC replacement ensures your new system operates at peak efficiency and maintains optimal comfort levels throughout your home.

Choosing an Inexperienced HVAC Contractor

Replacing an HVAC system is a significant investment, and choosing the right contractor is crucial to getting the most out of your new unit. Choosing a contractor based solely on price can be tempting, but this can lead to costly mistakes in the long run.

Here are some reasons why choosing an inexperienced HVAC contractor can be a big mistake:

Issue Potential Consequence
Improper Installation An inexperienced contractor may not install the new unit correctly, leading to inefficiencies, frequent breakdowns, and costly repairs down the line.
Missed Opportunities An experienced contractor can help you identify upgrades or cost savings opportunities, such as adding programmable thermostats or improving insulation. An inexperienced contractor may lack the knowledge or expertise to make these recommendations.
Lack of Follow-Up Support An experienced contractor typically offers follow-up support to ensure your new HVAC unit works properly and efficiently. With an inexperienced contractor, there may be no support after the installation is complete, leaving you alone if any issues arise.

When choosing an HVAC contractor, it’s important to do your research. Look for a company with a good reputation, positive reviews from past customers, and plenty of experience in HVAC replacement. Ask for references, and don’t be afraid to ask questions about the contractor’s experience and approach to HVAC replacement.

By working with an experienced and reputable HVAC contractor, you can ensure that your new unit is installed correctly and efficiently and that you’re getting the most out of your investment.


After much research and deliberation, you’ve finally decided on your HVAC replacement. Here are the key factors you considered before making your choice:

-The cost of the replacement: You looked at the cost of the unit itself, as well as the cost of installation. You also considered the long-term cost of ownership, including energy efficiency and maintenance costs.

-The size of the unit: You considered the square footage of your home and the climate in your area to determine the unit size you need.

-The unit type: You considered the different types of units available and chose the one that best meets your needs.

-The warranty: You looked at the warranty coverage offered by the different manufacturers and chose the one that offers the best protection.

Now that you’ve decided, it’s time to install your new unit. Be sure to hire a qualified HVAC contractor to do the job so you can be sure it’s done right.

Frequently Asked Questions

Replacing an HVAC system can be daunting, but it doesn’t have to be. Here are some of the most common questions homeowners have about HVAC replacement:

What is the cost of HVAC replacement?

The cost of HVAC replacement can vary depending on several factors, such as the size of the home, the type of system being installed, and the contractor hired for the job. On average, homeowners can expect to pay between $4,000 and $8,000 for a complete HVAC replacement.

How long does it take to install a new HVAC system?

The timeline for HVAC replacement can vary depending on the complexity of the installation and any necessary upgrades or repairs to the existing system. On average, homeowners expect the installation process to take one to three days.

What are the benefits of upgrading to a new HVAC system?

Upgrading to a new HVAC system can provide several benefits, such as increased energy efficiency, indoor air quality, and comfort levels. Newer systems also have advanced features and technology that can help homeowners save money on energy bills in the long run.

Can I install the new HVAC system myself?

Installing a new HVAC system yourself is not recommended, as it can be a complex and potentially dangerous task. Hiring a professional HVAC contractor with experience in replacement services is best to ensure the job is done safely and correctly.

Do I need to replace my ductwork when replacing my HVAC system?

While it’s not always necessary to replace ductwork when replacing an HVAC system, it’s important to have it assessed by a professional contractor. Old or damaged ductwork can reduce efficiency and cause issues with airflow, leading to higher energy bills and reduced comfort levels.

How often should I have my new HVAC system serviced?

Regular maintenance of a new HVAC system is important to keep it running efficiently and prevent costly repairs or premature replacement.

How do I choose the right HVAC replacement contractor?

Choosing the right HVAC replacement contractor is crucial to ensure the job is done safely and correctly. Look for a contractor with experience in HVAC replacement services, positive reviews, and proper licensing and insurance.

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