

How to Treat External Wood Doors: A Comprehensive Guide
External wood doors are not just functional elements of a home; they are also significant aesthetic contributors that can define the character of your property. To ensure they remain both visually appealing and structurally sound, proper treatment and maintenance are crucial. Below is a detailed guide on how to treat external wood doors to prolong their life and maintain their beauty.
Understanding the Importance of Door Treatment
Why Treat Wood Doors?
External wood doors are continuously exposed to varying weather conditions—sun, rain, wind, and fluctuations in temperature and humidity. These factors can lead to wear, colour fading, warping, and rotting. Treating your wood door not only protects it from these elements but also enhances its natural grain, boosting curb appeal.
Choosing the Right Treatment
Types of Treatments for Wood Doors
When selecting a treatment for external wood doors, consider the finish you desire and the level of protection needed:
- Varnish: Provides a glossy or satin finish while offering UV protection and water resistance.
- Oil: Penetrates deep into the wood, enhancing its natural beauty and providing protection without creating a surface film.
- Paint: Offers protection by sealing the wood from moisture and providing a wide range of colour options.
We Highly recommend that you always Oil your external doors
Benefits of Oiling Over Painting or Varnishing
Choosing to oil external wooden doors rather than painting or varnishing them offers several significant advantages:
- Oils penetrate deep into the wood, nourishing it from within, which helps prevent drying, cracking, splitting, or warping.
- Unlike surface coatings like paint or varnish, oil allows the wood to breathe, accommodating natural expansion and contraction without the finish cracking or peeling.
- Oiling enhances the natural grain and color of the wood, providing a warm, rich appearance that paint, which obscures the grain, cannot match.
- Minor damage on oiled doors can be easily touched up in specific spots, whereas painted or varnished doors might require complete re-coating.
- Oils also offer excellent water repellency and UV protection, keeping the wood from graying or deteriorating under sun exposure.
- Additionally, many exterior oils include mold and mildew inhibitors to protect the door further.
For those looking to treat their external doors, we recommend considering our Impranol Oils. This product is specifically formulated to enhance and protect the natural beauty of wood doors.


Considerations for Choosing a Treatment:
- Aesthetic Preference: Do you prefer a natural look or a specific colour?
- Maintenance Level: How often are you willing to reapply the treatment?
- Climate Conditions: Is the door exposed to extreme weather?
Treatment Application: Step-by-Step Guide
Treating your wood door is a task that can be undertaken as a DIY project or by professionals. Here’s how to do it yourself:
- Prepare the Door: Remove any hardware, and clean the door thoroughly. Sand the surface lightly to remove old finishes and provide a key for the new treatment.
- Apply Primer (if painting): Use a wood primer to ensure an even and long-lasting finish. Allow it to dry as per the manufacturer's instructions.
- Apply the Treatment:
- For varnish and oil, apply with a brush along the grain.
- For paint, start with a brush for the edges and hard-to-reach areas and finish with a roller for a smooth surface.
- Allow to Dry: Follow the manufacturer's instructions for drying times before reapplying coats or reattaching hardware.


Maintaining Your Treated Wood Door
Regular Maintenance Tips
To keep your treated wood door in top condition, regular maintenance is essential. Here are some practical tips:
- Regular Cleaning: Gently clean the door with soapy water and a soft cloth to remove dirt and grime.
- Annual Inspections: Check for signs of wear or damage and address them promptly.
- Reapplication: Depending on the treatment type and exposure, reapply finishes every few years to maintain protection and appearance.
Seasonal Care for External Wood Doors:
Season | Care Tips |
---|---|
Spring | Inspect for winter damage and apply a light coat of oil or varnish if necessary. |
Summer | Check for sun damage and fading, particularly if the door is south-facing. |
Autumn | Prepare the door for winter by ensuring it is clean and well-coated. |
Winter | Regularly remove any debris or snow that may sit against the door and cause moisture damage. |
Conclusion
Treating external wood doors is a critical aspect of home maintenance that extends the life of the doors and enhances your home’s aesthetic. By selecting the right type of treatment and following a regular maintenance schedule, your wood doors can remain beautiful and functional for many years.