Buying a Home With an Old HVAC System: What You Should Check

Professional Services
July 30, 2022

When looking for a new home, you want safety and comfort. Touring one house after another gets exhausting and confusing. A house may look beautiful and spacious, but if you don’t know how to inspect a property correctly, you may find yourself dealing with some expensive problems.

 

If you’re buying a home with old HVAC setups, there is much to consider. When people go house hunting, they scrutinize each home’s flooring, plumbing, and structural integrity. However, they often overlook the HVAC system in their initial inspection.

 

Professional Services, Grafton’s professional HVAC contractor, is here to help you navigate your questions and concerns regarding buying a home with an old HVAC system.

 

Vent Airflow

While you’re touring a house, pay attention to the air vents. Do some vents seem to have better airflow than others? Doall the vents seem to have poor airflow? There are a few reasons this could be happening:

 

  • Dirty air filters: If the air filters are old, the dust and dirt they collect are blocking airflow. This is not good for the HVAC system.
  • Dirty air ducts: If the air ducts don’t get routine cleanings, dust and debris collect and block the airflow.
  • Air duct leaks: If the HVAC system doesn’t receive routine maintenance, the air ducts can rust or crack at the seams. The air escapes through these cracks, decreasing flow to the vents.
  • Vents are too small/ducts are too big: If the HVAC system needs bigger vents, it will compromise the airflow. Similarly, if the ducts are too big, the air won’t travel to the vents as it should.
  • Wrong HVAC filter: The wrong HVAC filter may be restricting airflow to the ductwork.

 

Temperature Changes

Take note of temperature changes as you leave one room to enter another. You may notice that different rooms are dramatically hotter or colder. You may also notice varying levels of moisture in different rooms. Uneven temperatures throughout a house are the result of:

 

  • Blockage to vents
  • Weak insulation
  • Blockage or leak in air ducts
  • The furnace being the wrong size
  • The air conditioner being the wrong size
  • The HVAC system being too old

 

HVAC Age

When buying a home with an old HVAC system, one of the most important questions is, “How old is the HVAC system?” It’s imperative to find out how long it’s been since the unit’s installation and whether it’s still energy efficient. Be sure to get the exact model so you can research the length of time it should last.

 

An HVAC system can seem old but still have a few years left. Most air conditioners are good for 15 years, while furnaces usually last up to 20 years. Finding the information on your system will give you a better understanding of how long it should run.

 

The refrigerant in the AC unit is a factor to consider, along with the system’s age. Many older AC units use a refrigerant called R-22. The EPA banned this refrigerant in 2020. If the air conditioner in your HVAC system runs on R-22, a professional will have to modify the unit or replace it.

 

HVAC History

The house’s owner should be able to give you information about maintenance services and the repair history of the HVAC system. If they haven’t maintained the system, it should be a major consideration when deciding whether or not to buy the home. If the previous owner did not maintain the HVAC system properly, it will need repairs more frequently, and you will have to replace it sooner.

 

Insulation

If the home you’re looking to buy has old or poor insulation, the HVAC system works harder than it should to maintain the proper temperature. You will have to replace the HVAC system sooner and make repairs along the way.

 

Ask the seller or real estate agent about the house’s insulation. Old insulation doesn’t work as well once it settles. This can cause your energy bills to skyrocket.

 

Manuals and Warranties

Ask the homeowner for any manuals or warranties for the HVAC system. If the HVAC has an active warranty, it can cut back on repairs and replacement. Make sure the service contract is transferable to you and has not expired.

 

Manuals are great for ensuring that you’re properly maintaining the HVAC equipment. Be sure to get the exact model and any necessary serial numbers for the HVAC system before trying to find digital copies of any manuals. If the homeowner can’t locate the original manuals, you can usually find and download them online.

 

Inspect the HVAC Components

Check the furnace and air conditioner for rust and leaks. Turn them on and check for strange sounds or vibrations. Let them run for a while so that you can witness them working correctly.

 

Check the ducts and vents for rust, cracks, and moisture. Rust or cracks in the ventilation system can divert the airflow, causing the furnace or air conditioner to overheat, while moisture buildup in your ducts can breed mold and mildew and pose a health hazard.

 

Once you’ve looked over the HVAC system, you’ll have to decide whether the setup is worth keeping or whether you’ll need to replace it. HVAC repairs can get expensive, let alone replacing the system outright. Calling a professional HVAC technician to inspect the system may be your best bet.

 

Conclusion

Know what you’re paying for if you’re considering buying a home with an old HVAC setup. If you need to replace the whole HVAC system once you purchase the home, negotiate subtracting that from the cost of the house. Otherwise, see whether the current owner will replace the HVAC system before purchasing the home.



If you have concerns about an HVAC system, contact Professional Services in Port Washington, WI. We proudly serve Port Washington and the surrounding communities. Get to know what an air handler is in the link and call us at 262-218-2636 or email us at customerservice@professionalservicetoday.com for all your HVAC needs!

You might also like

Key Signs Your Heating System Needs Repair in Port Washington, WA

October 3, 2025
Imagine your heating system as a car engine; when it starts making strange noises or sputtering, it's a clear sign something's off. If you've noticed unusual sounds, inconsistent warmth, or rising energy bills, your heating system might be signaling for help. Ignoring these signs could lead to bigger issues down the line. So, what should you watch for to guarantee your home stays warm and comfortable? Unusual Noises From Your Heating System When you hear unusual noises coming from your heating system, it's a sign that something might be off. You might notice clanking, rattling, or hissing sounds that disrupt the usual hum of your heater. These noises can indicate loose or damaged components, or even airflow issues. Ignoring them could lead to more significant problems down the line. If you hear a high-pitched whine, it could signal a motor issue, while banging noises might mean parts are hitting each other. These sounds aren't just annoying; they often point to potential breakdowns that could leave you without heat when you need it most. Professional Services can help ensure your heating system is in top working condition. Don't hesitate to contact Professional Services for a thorough inspection. Our certified professionals can diagnose the source of those unsettling sounds and guarantee your heating system operates smoothly. Trust us to keep your home warm and comfortable all season long. Inconsistent Heating Throughout Your Home If you've noticed that some rooms in your home feel warmer than others, it might be time to investigate inconsistent heating. This issue can lead to uncomfortable living conditions and may indicate a problem with your heating system. Several factors could be causing this uneven warmth, and identifying them early can save you from more significant repairs down the line. Blocked vents or registers Ductwork leaks or damage Thermostat placement issues Insufficient insulation in certain areas Age or inefficiency of your heating unit Don't ignore these signs. If you find yourself constantly adjusting the thermostat or dealing with chilly corners, it's crucial to consult with a professional. They can pinpoint the issue and help restore your home's comfort, ensuring every room feels just right. Regular maintenance ensures safety and functionality of the furnace, which is essential for preventing such issues. Increased Energy Bills Noticing inconsistent heating throughout your home might lead to another alarming sign: increased energy bills. If you've seen a sudden spike in your monthly expenses, it's time to investigate. When your heating system struggles to maintain a comfortable temperature, it works harder, consuming more energy and driving up costs. You mightn't realize that a poorly functioning system can cause your bills to soar, but it happens more often than you think. Pay attention to your energy usage patterns. If your bills are consistently higher despite normal usage, it's a clear indicator something's off. Ignoring this issue can lead to even larger expenses down the road. Regular heating system maintenance can prevent these issues and help avoid costly repairs . Don't let increased energy bills become the norm for you. Reach out to a qualified HVAC technician to assess your heating system. They can identify problems and recommend repairs to restore efficiency, helping you save money in the long run. Frequent Cycling On and Off As your heating system struggles to maintain a consistent temperature, you might notice it cycling on and off more frequently than usual. This frequent cycling can indicate underlying issues that need attention. It can lead to increased wear and tear on your unit, ultimately shortening its lifespan. Here are some reasons why this might be happening: Thermostat issues : A faulty thermostat may not accurately sense temperature, causing erratic cycling. Dirty filters : Clogged filters restrict airflow, making your system work harder and cycle more. Duct leaks : Leaky ducts can lead to heat loss, forcing the system to compensate by cycling frequently. Oversized system : If your unit is too large for your space, it can lead to short-cycling. Refrigerant problems : Low refrigerant levels can affect the system's ability to heat efficiently. If you notice this issue, it's time to call a professional for a thorough inspection. Regular boiler maintenance programs can help prevent such problems and ensure efficient operation of your heating system. Poor Air Quality or Odors Frequent cycling can often lead to issues beyond just temperature regulation; poor air quality and unpleasant odors may also surface in your home. If you notice musty smells, dust buildup, or stale air, it's a clear sign your heating system might need attention. These odors can indicate mold, mildew, or even burnt dust collecting on your heating elements, which can affect your health. Additionally, if you experience increased allergy symptoms or respiratory issues, your system's filters may be clogged or ineffective. A simple filter replacement might help, but persistent problems could mean it's time to call in the experts. Professional Services offers air quality improvements with filtration and purification solutions, ensuring your home remains a comfortable and healthy environment. Don't ignore these signs; addressing them promptly can enhance your overall comfort and well-being.  Schedule an inspection today to maintain the air quality you deserve.

Top 5 Heating Maintenance Tips for Thiensville, WA Homes

October 3, 2025
Many homeowners overlook the impact of simple maintenance on their heating systems. Proper upkeep can not only enhance efficiency but also extend the lifespan of your unit. By adopting a few straightforward practices, you can guarantee your home stays warm and comfortable all winter long. Curious about the top five maintenance tips that can make a real difference? Let's explore how you can keep your heating system in peak condition. Change Your Air Filters Regularly Changing your air filters regularly is one of the simplest yet most effective ways to maintain your heating system. This will guarantee that your furnace runs efficiently, which can greatly reduce energy costs. Clogged filters restrict airflow, forcing your system to work harder, leading to potential breakdowns. Aim to check your filters monthly and replace them every 1 to 3 months, depending on your usage and filter type. Using high-quality filters can further improve your indoor air quality, trapping dust, allergens, and other pollutants. When your air filters are clean, your heating system won't have to struggle, enhancing its lifespan. Plus, a well-maintained system heats your home more evenly, keeping you comfortable during chilly months. Regular maintenance improves system efficiency , so set a reminder to change those filters and enjoy the benefits of a well-functioning heating system! Schedule Annual Professional Inspections Scheduling annual professional inspections is essential for keeping your heating system in top shape. These inspections help identify potential issues before they become major problems, saving you time and money in the long run. During an inspection, a qualified technician will thoroughly assess your system, ensuring everything operates efficiently and safely. They'll check for wear and tear, clean components, and verify that your system meets current safety standards. This proactive approach is critical as heating systems often fail during the coldest winter months , leaving you uncomfortable. This proactive approach not only enhances your system's performance but also prolongs its lifespan. Plus, having a professional on hand gives you peace of mind, knowing your home is warm and comfortable when you need it most. Don't wait until the cold weather hits—schedule your annual inspection today with Professional Services. Our certified professionals are ready to provide a thorough check-up, helping you maintain a reliable heating system and ensuring your home stays cozy all winter long. Keep Vents and Radiators Clear To guarantee your heating system operates efficiently, keeping vents and radiators clear of obstructions is crucial. When airflow is restricted, your system has to work harder, leading to higher energy bills and potential breakdowns. Here are three simple steps to verify your heating components remain unobstructed: Regularly Inspect : Check vents and radiators for any furniture, curtains, or other items blocking airflow. Move obstacles to maximize efficiency. Dust and Clean : Accumulated dust can impede performance. Wipe down vents and radiators monthly to keep them clean and operational. Schedule Maintenance : Consider scheduling professional cleaning and inspections to confirm everything's working effectively and to catch any issues early. Regular maintenance ensures safety and functionality of the furnace and can help prevent hazardous situations. Test Your Thermostat Functionality How often do you check your thermostat's functionality? It's essential to guarantee your heating system operates efficiently. Start by setting your thermostat to your desired temperature and listen for the heating system to kick in. If it doesn't respond, try adjusting the temperature again. If your thermostat is battery-operated, you should also check the battery; a simple battery change can make a big difference. Additionally, clean any dust or debris from the thermostat to guarantee accurate readings. If you have a programmable thermostat, review the settings to confirm they're correctly programmed for your schedule. Don't hesitate to consult a professional if you notice any inconsistencies or malfunctions. Regular maintenance is key to avoiding common problems , ensuring your heating system runs smoothly. Regularly testing your thermostat helps avoid unexpected heating issues, guaranteeing your home stays warm and comfortable throughout the winter months. Keeping everything in check can save you money and headaches down the line!  Insulate Your Home Properly Properly insulating your home is essential for maintaining a comfortable temperature and reducing energy costs. Good insulation keeps the warmth inside during the winter and blocks heat in the summer, making your HVAC system work more efficiently. Here are three key areas to focus on: Attic Insulation : Make sure your attic is well-insulated to prevent heat loss. Use fiberglass batts or spray foam for ideal results. Wall Insulation : Check your walls for gaps or insufficient insulation. Adding insulation can greatly improve your home's energy efficiency. Windows and Doors : Seal any drafts around windows and doors with weatherstripping or caulk. This simple step can help maintain your home's temperature.

Furnace Trouble? How to Decide Between Repair or Replacement in Port Washington, WA

October 3, 2025
When your furnace struggles to heat your home, it can feel like a battle between comfort and frustration. You might wonder if a simple repair could do the trick or if it's time to invest in a new unit altogether. Factors like age, efficiency, and odd noises can all play a role in your decision. So, how do you determine the best course of action? Let's explore the signs and considerations that can guide you. Signs Your Furnace Needs Repair Sometimes, your furnace gives off subtle hints that it needs repair before it completely breaks down. If you notice strange noises like banging or rattling, it's a sign something's off. You might also see uneven heating in your home; some rooms feel warm while others remain chilly. Pay attention to any unusual smells, particularly a burning odor, which could indicate dust buildup or a more serious issue. Frequent cycling on and off, known as short cycling, can also suggest that your furnace is struggling. Additionally, if your energy bills suddenly spike without explanation, your furnace may be working harder than it should. Finally, if you see an increase in humidity or dust levels in your home, it's time to call for help. Addressing these signs early can help prevent a total breakdown and guarantee your furnace runs efficiently. Regular maintenance and timely service from professionals can further enhance your furnace's performance. Factors to Consider for Replacement When should you seriously consider replacing your furnace instead of just repairing it? First, think about its age. If your furnace is over 15 years old, it might be time for a replacement, as newer models are more efficient. Next, consider the repair frequency. If you're calling for repairs frequently, those costs can add up, indicating a systemic issue. Pay attention to efficiency as well; if you notice rising energy bills that don't correlate with usage, your furnace may no longer be performing effectively. Additionally, think about safety. If your furnace is leaking carbon monoxide or has other safety concerns, replacement is vital. Finally, evaluate your comfort level. If your home isn't heating evenly or you're dealing with inconsistent temperatures, a new furnace could provide the comfort you need. Regular maintenance is essential for maintaining a comfortable indoor environment , and ignoring it could lead to further issues down the line. These factors can guide you in making an informed decision about whether to repair or replace your furnace. Cost Analysis: Repair vs. Replacement As you weigh the costs of repairing versus replacing your furnace, it's essential to evaluate both immediate expenses and long-term savings. Repairing your furnace may seem cheaper upfront, but consider how often you've had to call for repairs lately. If you're spending a significant amount on frequent fixes, a replacement might save you money in the long run. On the other hand, a new furnace comes with a higher initial cost but offers improved efficiency, which can lower your energy bills. Additionally, natural gas boilers can provide an environmentally friendly heating solution that may be worth considering. Factor in the potential for manufacturer warranties and lower maintenance costs over time. Additionally, consider financing options available through Professional Services to make a new unit more affordable. Age and Efficiency of Your Furnace The age and efficiency of your furnace play an essential role in deciding whether to repair or replace it. If your furnace is over 15 years old, it's likely less efficient and more prone to breakdowns. You'll want to evaluate the following factors: Energy Bills : An older furnace may cause your energy bills to rise due to decreased efficiency. Frequent Repairs : If you find yourself calling for repairs often, it might be a sign that replacement is more cost-effective. Performance Issues : Inconsistent heating or strange noises can indicate that your furnace isn't functioning properly. Assessing these aspects can help you determine if it's time for a new unit. Additionally, regular professional maintenance can help prolong the life of your heating system and improve efficiency. The Importance of Professional Consultation Understanding the nuances of your furnace's condition can be challenging, so consulting a professional is crucial. When you're faced with repair or replacement decisions, their expertise can guide you through the process. They'll accurately assess your furnace's performance and efficiency, helping you weigh the costs and benefits of each option. Professional technicians at Professional Services know the latest technologies and trends in HVAC systems. They can offer tailored recommendations based on your home's specific needs. Plus, their experience guarantees that you won't overlook any critical issues that could lead to further problems down the line.

Book a Service Today