5 Things You Should Check During Winter for HVAC Maintenance

San Rafael

(415) 942-6565

Santa Rosa

(707) 452-3464

Your HVAC system will function extra hard to keep you relaxed, warm, and comfortable during the winter season. And the last thing you would need is to have your heating system break down amid a cold, shivering night. It’s imperative that you take some time to ensure your HVAC system is properly maintained and safe to operate. Here are five things you can inspect during winter for HVAC maintenance to ensure that everything is operating correctly and efficiently and if any HVAC repairs are needed.

1. Air Filters

It’s crucial to check your air filters during the fall and winter since heating systems use more energy than cooling systems. Clean filters improve indoor air quality and help your HVAC unit run more efficiently. On the other hand, dirty filters can inhibit your furnace’s ability to warm your place, slow down airflow, and reduce efficiency by as much as 20 percent.

Spending a little bit of time checking the condition of your filter will help ensure that it does not cause damage to your system or disrupt your home or office environment. It is highly recommended to replace your air filters every three months.

2. Chimney Connection

Inspect for any cracks or holes in the connection between your furnace and chimney. During the winter, snow can fall on top of or melt onto your roof. And the presence of even a tiny crack can cause a significant problem then and there. In addition, cold air coming down the chimney can cause moisture to condense inside your furnace, preventing your furnace from dispersing hot air into your home. If this happens, contact a professional HVAC repair expert near you immediately for help.

3. Outside unit

When performing HVAC maintenance, examine your outside HVAC unit for any damage or signs of wear, frayed wires, cracks in the condenser/evaporator coil, and loose screws or bolts. Also, look for any indications of rodents or bees that have been nesting in your outdoor unit and remove them if necessary.

4. Condenser Coils

Condenser coils are also susceptible to problems during the winter months. You need to check the condenser coil for dirt, leaves, bugs, and corrosion. If your condenser coils are damaged or covered in corrosion, they will reduce their ability to transfer heat from inside to outside, leading to higher utility bills and decreased comfort.

If you notice any indication of a refrigerant leak like discoloration and blisters on the coil fins, contact an HVAC repair expert near you to avoid system damages.

5. Thermostat

It may seem like an obvious thing to do, but it’s essential to make sure your thermostat is set correctly. If your thermostat says 68 degrees and you’re still freezing, then there’s a problem with it. An HVAC maintenance and repair technician can reset it for you so that your place maintains the desired temperature.

An HVAC system is at the heart of your home. When they don’t work accurately, you’ll cringe as you settle in for an uncomfortable winter. John Owens Services offers high-quality, cost-effective HVAC repair services near you in Rohnert Park, ensuring that your system stays in top shape and continues to heat your home efficiently all winter long. You can reach us at 707-452-3464.

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Serving Marin & Sonoma Counties

Good plumbing, heating, and air conditioning systems are vital in every North California home. John Owens Services, Inc. is proud to be the expert plumbing company you can count on

The John Owens Way

Our philosophy is simple, we always want to maintain equipment to give it the longest life possible. Next, we want to focus on repairing when something goes wrong. Then only as the last choice, we replace equipment when needed. That’s the John Owens Way.

San Rafael
(415) 942-6565
Santa Rosa
(707) 452-3464



Regular maintenance keeps your home’s systems running well all year long. We’ll help you gain efficiency and save money.



When something breaks down, our team will get to you fast. We’ll find the problem and fix it to get you back to normal.



When it’s time to replace something in your home, we’ll help you get a top quality product that matches your specific needs.
San Rafael
(415) 942-6565
Santa Rosa
(707) 452-3464