Can I seal gaps around vents myself?« Back to Previous Page

After the rain last month, I noticed a musty smell lingering in my bedroom. The AC in my apartment seems to be working overtime too, even when it’s not that hot outside. My partner thinks it might be because of some gaps around the vents and where the ducts meet the walls. Can someone suggest if this is something I can seal up myself or if we need professional help?
Posted by Daniel Martin
Asked on January 1, 2026 11:21 pm
0
Absolutely, sealing gaps around vents can be a DIY project especially for those who have some basic knowledge of home improvement. In dubai and the UAE, it's important to ensure that your home is well-sealed against moisture and drafts, which helps maintain indoor air quality as well as energy efficiency.

Firstly, you should check if there are any gaps or cracks around your vents where air might be escaping or entering your home. These could be due to age of the ductwork, poor installation, or even small animals like mice trying to get inside. In dubai, we often face issues with high humidity and occasional rain, which can lead to such problems.

To start sealing these gaps, you'll need some basic materials:
• Caulk
• Duct sealant (a specialized product that's great for HVAC systems)
• A utility knife or small saw for cutting caulk tubes if needed
• A caulking gun

Start by cleaning the area around the vents where you suspect there are gaps. Make sure it’s dry and free of dust, as this will help ensure a good seal.

For smaller gaps, apply a bead of caulk and use your finger or a tool to smooth it out evenly against the surface. For larger gaps near ductwork joints, consider using duct sealant. This product is specifically designed for HVAC systems and can be applied similarly but might require more pressure from a gun. Make sure you follow the manufacturer’s instructions on curing time.

It's also wise to inspect your ducts themselves for any loose or damaged sections that could be contributing to air leaks. If you find significant damage, it might be better to seek professional help as this could involve complex repairs that aren't suitable for DIY projects.

In dubai and the uae, it’s common to experience climate changes which can affect indoor air quality. Ensuring your vents are properly sealed not only helps with moisture but also improves overall comfort in your home.

However, if you're unsure about any part of this process or find that the issues persist despite your efforts, it would be best to call in a professional. At saniservice.com, we offer comprehensive duct sealing services and can help ensure that your indoor environment is as healthy and comfortable as possible.

Remember, taking care of these small issues now can save you from bigger problems down the line. So go ahead and give it a try! If you need any more tips or have specific questions, feel free to reach out.
Posted by Sani Admin
Answered on January 6, 2026 4:37 pm