The Ultimate Guide to Replacing Your HVAC System 


Introduction: What are the Benefits of Replacing an Old HVAC System?

Replacing an old HVAC system can be a difficult decision to make. It requires a significant financial investment, and it can be hard to decide when the time is right. But there are many benefits associated with replacing your old HVAC system, including improved energy efficiency, increased comfort, and lower energy bills. If you’re considering replacing your old HVAC system, make sure to compare the costs over the life of your new system and consider how much energy it will save.


How to Tell if Your HVAC System Needs Replacement

Knowing when it is time to replace your HVAC system can be a difficult decision. It can be hard to tell if your HVAC system needs replacement or if it just needs some maintenance. There are a few signs that you should look for that will help you determine when it is time to replace your HVAC system. These include increased energy bills, strange noises coming from the unit, and age of the current unit. By understanding these signs, you can make an informed decision on whether it is time for a new air conditioner or heat pump.


Does your air conditioner run non-stop in the summer? During extreme heat, an HVAC system can struggle to cope. Old R-22 units from the 1980s can still work, but will cause your electricity bill to skyrocket; these older systems are less efficient. Newer refrigerant is more effective in the cooling process and will save you money in the long run.


Are you hearing any unusual sounds coming from your HVAC System? This could mean that the internal components of both inside and outside units have seen a lot of use, and noise can signify an issue with the system. HVAC systems are pretty reliable and most problems will show themselves as a noise, so if you experience something strange, we recommend contacting us ASAP to get either a specialist or an emergency service company out for repair!


How long has your HVAC system been around? Most systems come with a 10-year warranty and can last up to that period if they are regularly maintained. This is the average life expectancy of such systems. At H & H Mechanical, we want to ensure that you get the utmost benefit from your HVAC System, but we also strongly advise having a plan in place to anticipate future needs.


How Much Does it Cost to Replace an Old HVAC System?

Replacing an old HVAC system can be a costly endeavor, but it is also necessary to ensure that your home’s heating and cooling system is running efficiently. The average cost of the system will vary in every aspect; from the size of your home, the size of your system, and local/national requirements; a lot of information is needed to make a new system work for you correctly. Other factors such as location, age of the existing system, and energy efficiency ratings should also be taken into consideration.


Repair Versus Replacement

When it comes to HVAC repair versus replacement, the decision can be difficult. Depending on the age and condition of your unit, replacing it may be more cost-effective in the long run. An HVAC professional can help you assess your system's condition and determine if repairs or a new installation are best for your home. They can explain the pros and cons of each option to help you make an informed decision about what’s best for you. Give us a call if you would like to schedule a free estimate with one of our licensed professionals today.


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Why Too Much Humidity Is Bad for Your Home

By Loren Crabtree • July 15, 2025
When it comes to your home’s air quality, humidity plays a critical role in maintaining comfort and safety. However, while a certain level of humidity is essential, too much of it can wreak havoc on your living space—and your health. In this blog, we’ll explore why excessive moisture in the air is bad for your home and outline actionable steps to keep your indoor environment properly balanced. Why Too Much Humidity Is Bad for Your Home 1. Mold and Mildew Growth ๐Ÿ’ง When air becomes overly humid (above 60% relative humidity), it creates a perfect environment for mold and mildew to thrive. These fungi not only cause unpleasant odors but can also lead to structural damage, discoloration, and health issues such as allergies and respiratory problems. 2. Damage to Walls, Floors, and Furniture ๐Ÿ› ๏ธ Excess humidity can cause: Warping in wood floors and furniture Peeling paint and wallpaper Damage to drywall due to water absorption over time Not only is this unsightly, but expensive repairs may follow if the problem persists. 3. Dust Mites and Pests ๐Ÿœ Higher humidity often results in dust mites flourishing, which can trigger asthma and other allergies. Additionally, some pests like cockroaches and termites are attracted to moist environments. 4. Increased Energy Bills ๐Ÿ’ธ Humidity makes the air feel warmer, forcing your air conditioner to work harder to cool your home. As a result, your energy bills can skyrocket during summer months when cooling is already a priority. What Can You Do to Reduce Humidity? 1. Use a Dehumidifier ๐Ÿ› ๏ธ If humidity is a persistent problem, investing in a dehumidifier can help maintain optimal levels (between 30%-50%). These devices pull excess moisture from the air and improve overall air quality. 2. Improve Ventilation ๐ŸŒฌ๏ธ Good airflow is crucial for managing humidity. Use kitchen and bathroom fans when cooking or showering. Open windows to let fresh air circulate during cooler parts of the day. 3. Seal Leaks ๐Ÿก Check for leaks in your home’s foundation, roof, windows, and doors. Water intrusion from outside can contribute to excess humidity inside. Seal these areas using weather stripping or caulk. 4. Fix Plumbing Issues ๐Ÿšฐ Leaky faucets, pipes, or appliances can introduce more moisture into the air. Regularly inspect and repair plumbing to prevent this problem. 5. Use Air Conditioning Efficiently โ„๏ธ Your AC not only cools your home but also removes moisture from the air. Make sure it’s operating efficiently with regular maintenance, and clean/replace filters as needed. 6. Opt for Moisture-Absorbing Products ๐Ÿงด Place moisture absorbers like silica gel, activated charcoal, or specific products designed for closets and basements in areas prone to high humidity. Long-Term Tips for Humidity Management Landscaping Matters: Ensure proper drainage around your home’s foundation to minimize water buildup. Install a Vapor Barrier: In crawl spaces or basements, this can help prevent moisture from seeping into the air. Monitor Humidity Levels: Invest in a digital hygrometer to constantly keep an eye on humidity and act when levels start to rise. The Sweet Spot: Finding Balance While too much humidity is a problem, don’t forget—too little humidity can create its own issues, such as dry skin, respiratory discomfort, and even damage to wood furniture. Strive to maintain a balanced range of 30%-50% relative humidity year-round. Final Thoughts Excess humidity isn’t just annoying; it can cause long-term damage to your home and health. The good news? With the right tools and techniques, you can keep moisture in check and ensure your home remains a comfortable and safe space. Start taking these steps today, and say goodbye to sticky air, moldy walls, and skyrocketing energy bills!

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