Secure Your House: Are Fiberglass Doors Really Safe?

Photo of author

Door Vigilant

Fiberglass doors are highly secure, offering both durability and resistance to weather conditions and intruders. Fiberglass doors are one of the most popular choices for many homeowners due to their sturdiness and durability, especially in places with extreme weather conditions.

Often lauded for their resistance to dings, dents, scratches, rust, and rot, these doors provide a practical and low-maintenance solution to those who want both functionality and aesthetics in their homes.

But what about security? Are fiberglass doors a reliable choice?

In this article, we’ll take a closer look at how fiberglass doors fare when it comes to security and what features to look out for to ensure that your home and family remain safe.

Are Fiberglass Doors Secure

What Fiberglass Doors Made Of?

Fiberglass doors are becoming increasingly popular as a home security option. But the question remains: are fiberglass doors really secure? Let’s examine the materials that build fiberglass doors to understand their strength.

Fiberglass doors are a composite material made from glass fibers and resin. This combination creates a strong, durable material that is resistant to warping, cracking, and splitting.

In terms of security, the fiberglass material is strong enough to withstand forced entry attempts, making it a popular choice for exterior doors.

Additionally, fiberglass doors are installed with sturdy locking mechanisms that provide an added layer of security.

how is a fiberglass door made?

Fiberglass doors are typically made through a process called pultrusion. Here’s a brief overview:

  • Materials: The process starts with raw materials, usually glass fibers and resins. The glass fibers provide strength, while the resins, often polyester or epoxy, act as binding agents.
  • Pultrusion: The materials are pulled through a heated steel die in a continuous process known as pultrusion. This process shapes and cures the fiberglass composite into the desired door profile.
  • Molding: The pultruded material is then molded into the specific design of the door, including panels, patterns, and any desired textures.
  • Curing: The molded doors go through a curing process to ensure the materials harden and achieve the desired strength.
  • Finishing: Once cured, the doors undergo finishing processes, which may include painting, staining, or applying a protective coating to enhance aesthetics and durability.

The result is a strong, lightweight, and versatile door that can be customized for various styles and applications.

how is a fiberglass door made

Fiberglass Doors Advantages And Disadvantages

Fiberglass doors come with their own set of advantages and disadvantages. Let’s break it down.


  • Durability: Fiberglass doors are known for their strength and resistance to dents, cracks, and warping.
  • Low Maintenance: They require minimal maintenance, as they don’t rot, corrode, or rust like some other materials.
  • Energy Efficiency: Fiberglass doors often have good insulation properties, helping with energy efficiency and reducing heating or cooling costs.
  • Versatility: They can be molded to resemble various materials, providing flexibility in design choices.
  • Weather Resistance: Fiberglass doors can withstand harsh weather conditions, making them suitable for various climates.


  • Cost: Fiberglass doors can be more expensive upfront compared to some other materials.
  • Painting Challenges: While they can be painted, it might be trickier than with wood, and the finish may not be as customizable.
  • Not as Heavy as Wood: Some people prefer the weightiness of solid wood doors, and fiberglass might not provide the same feel.
  • Limited Repair Options: If damaged, fiberglass doors may be more challenging to repair compared to wood.

In the end, the choice between fiberglass and other materials depends on your specific needs and preferences.

Comparison Of Fiberglass Doors To Wooden Doors In Terms Of Safety

Wooden doors, while aesthetically pleasing, are not as secure as fiberglass doors. Wood is a natural material that is prone to warping, expanding, and contracting due to changes in weather and humidity. This makes them vulnerable to forced entry attempts, especially if the locks are weak.

On the other hand, fiberglass doors are designed to be weather-resistant and are less affected by changes in temperature and humidity. This means that fiberglass doors are less likely to warp, sag, or crack over time, ensuring the locks remain secure and providing optimal protection.

Comparison Of Fiberglass Doors To Metal Doors In Terms Of Safety

While metal doors may seem like a secure option, they have their drawbacks. Metal doors can dent easily, leaving them vulnerable to forced entry attempts while also being vulnerable to rust and corrosion, which can compromise their structure.

Fiberglass doors, on the other hand, are much more resistant to dents, corrosion, and rust than metal doors.

Additionally, fiberglass has insulation properties that make them energy-efficient, while metal doors can conduct hot or cold temperatures, making them less efficient.

Fiberglass doors are a secure option for homeowners when compared to wooden and metal doors. The combination of their sturdy materials, sturdy locking mechanisms, and resistance to warping and weather damage makes them a reliable and top-quality option for home security.

What Makes Fiberglass Doors Safe For Your House?

Are fiberglass doors secure? What makes fiberglass doors safe for your house?

Fiberglass doors are a popular choice among homeowners due to their durability, strength, and security features. Highly resilient, these doors can withstand harsh weather conditions, including extreme temperatures, and are resistant to denting, cracking, and warping.

What Makes Fiberglass Doors Safe For Your House

Here’s what makes fiberglass doors a safe option for your house:

The Durability And Resilience Of Fiberglass Doors

Fiberglass doors are engineered to last longer than traditional doors. They are highly resistant to weather conditions, including rain, snow, and humidity. Due to their non-porous surface, they are less susceptible to denting, warping, and cracking. Additionally, fiberglass doors are not affected by insect damage and do not rot or rust.

  • They have a long lifespan and require minimal maintenance, making them a cost-effective choice for homeowners.
  • Fiberglass doors are also energy-efficient, as they prevent air leakage and help reduce heating and cooling costs.

The Strength And Resistance Of Fiberglass Doors

Fiberglass doors are designed to be strong and withstand external pressure compared to regular doors. They have a stiff exterior skin that can handle heavy-duty impacts without breaking. Fiberglass doors also have superior soundproofing properties that provide homeowners with a sense of quiet and privacy.

  • They are highly resistant to forced entry due to their solid and robust construction.
  • Fiberglass doors are also fire-resistant and have excellent insulation properties, making them ideal for areas prone to wildfires.

The Security Features Of Fiberglass Doors

Fiberglass doors are equipped with advanced locking systems and security hardware that prevent break-ins. They have strong hinges and reinforced frames that make it difficult for intruders to pry them open. Additionally, they come with a variety of customization options, including peepholes, door knockers, and digital locks, which enhance their security features.

  • Fiberglass doors have anti-crowbar edges that prevent intruders from using tools to pry open the door.
  • They also have multi-point locking systems that secure the door at multiple points along its length, providing added strength and security.

Fiberglass doors are a safe and secure option for homeowners looking to enhance their home security. They are durable, strong, and equipped with advanced security features that make it difficult for intruders to gain access to your home.

With their superior insulation and soundproofing properties, fiberglass doors are also energy-efficient, providing homeowners with added savings on their heating and cooling costs.

Are Fiberglass Doors Really Worth The Cost?

While shopping for a new door, you may realize that the cost of fiberglass doors is higher than that of wooden or metal doors. However, before making any hasty decisions based on price alone, it’s important to look at the benefits of fiberglass doors and determine whether the cost is worth it in the long run.

The Cost Of Fiberglass Doors

  • Fiberglass doors are made from reinforced plastic, which is incredibly durable and resistant to damage from the weather, scratches, and dents.
  • The cost of fiberglass doors is higher compared to wooden doors and metal doors because the manufacturing process is more complex and requires a higher level of engineering, raw materials, and technology.
  • The cost of fiberglass doors also accounts for the increase in energy efficiency and the additional security features that come with them.

Comparison Of The Value Of Fiberglass Doors To Wooden Doors

  • Wooden doors are less expensive but don’t compare with fiberglass doors in terms of durability, energy efficiency, and resistance to weather.
  • Wooden doors require more maintenance over time, including painting and sealing to keep them looking great.
  • Fiberglass doors, on the other hand, are more energy-efficient, resistant to moisture, warping, and delamination, and are generally easier to maintain.

Comparison Of The Value Of Fiberglass Doors To Metal Doors

  • Metal doors are more affordable than fiberglass doors, but they can also be less durable and less energy-efficient.
  • Metal doors can be prone to rust and denting and can cause issues with your home’s energy efficiency and insulation.
  • Fiberglass doors offer better energy efficiency and have higher insulation ratings, which can translate into energy savings in the long run.

While fiberglass doors cost more upfront, they provide far better value in terms of durability, energy efficiency, and reduced maintenance costs. If you’re looking for a secure, long-lasting, and energy-efficient option for your home’s entrance, fiberglass doors are an excellent investment.

Fiberglass Door Price

The price of fiberglass doors can vary widely based on factors such as brand, design, size, and additional features. On average, fiberglass doors can range from a few hundred to over a thousand dollars. High-end or custom-designed fiberglass doors may cost more.

It’s recommended to obtain quotes from different suppliers or retailers and consider the specific features and warranty offered with each door. Installation costs should also be factored into the overall expense.

Installation And Maintenance Of Fiberglass Doors

Fiberglass doors have gained a reputation as being more durable and secure than their traditional wooden counterparts. While the material itself lends itself to being more robust, proper installation and maintenance are essential to ensuring your home is secure.

We’ll look at the importance of proper installation and maintenance of fiberglass doors, common issues that can arise, and how to address them.

The Importance Of Proper Installation For Security Purposes

A fiberglass door is only as secure as its installation. Whether it is a new door or a replacement, ensuring the door is fitted correctly is essential. Here are some key points to keep in mind:

  • Ensure that the frame is plumb, level, and square before installing the door. This will ensure that the door is not warped, which could compromise its security.
  • Use sturdy hardware, including heavy-duty hinges, deadbolts, and a robust strike plate.
  • Seal the gaps between the frame and the wall with weatherstripping to prevent drafts and water seepage.

The Essential Maintenance Required For Fiberglass Doors

Regular maintenance is essential for keeping your fiberglass door in good condition and secure. Here are some things to keep in mind:

  • Clean the door regularly to prevent dirt and grime buildup. Use a mild detergent and a soft-bristled brush to scrub away any dirt.
  • Inspect the weatherstripping at least twice a year, and replace it if it’s damaged or worn.
  • Lubricate the hinges and locks with a silicone-based lubricant to ensure smooth operation.

The Common Issues With Fiberglass Doors And How To Address Them

No matter how well-maintained your fiberglass door is, some issues can still arise. Here are some common problems and how to address them:

  • Cracking: if you notice any cracks on the door’s surface, fill them in with an epoxy filler or auto-fill glaze.
  • Warping: if the door is warped, you may need to sand it down or replace it entirely.
  • Dents and scratches: You can fix minor dents and scratches by using a fiberglass repair kit or by filling in the damaged area with auto-body filler.

Fiberglass doors are an excellent choice for homeowners looking for a durable and secure option. By taking care of the installation and maintenance and addressing any issues, you can ensure that your fiberglass door will provide the security and aesthetic appeal you desire for many years to come.

Can Fiberglass Doors Be Painted?

Absolutely, fiberglass doors can be painted. In fact, they offer a paintable surface that allows for customization to match your preferred aesthetic. However, there are a few considerations to keep in mind:

  • Surface Preparation: Before painting, it’s crucial to prepare the surface properly. Clean the door thoroughly to remove any dirt or contaminants.
  • Type of Paint: Choose a high-quality exterior-grade paint suitable for fiberglass. Acrylic latex paints tend to work well for this purpose.
  • Priming: Applying a primer designed for use on fiberglass is recommended. This helps the paint adhere better and ensures a more durable finish.
  • Temperature and Humidity: Ideal painting conditions involve moderate temperatures and low humidity to allow for proper drying and curing.

By following these steps, you can give your fiberglass door a fresh and personalized look.

Can A Fiberglass Door Be Kicked In?

While fiberglass doors are generally durable and resistant to impacts, like any material, they are not completely impervious. The extent to which a fiberglass door can withstand a kick-in attempt depends on various factors, including the door’s construction, the quality of the installation, and additional security features.

Fiberglass doors with a solid core or reinforced construction tend to offer better resistance to forceful impacts. Additionally, installing high-quality deadbolt locks, strike plates, and hinges can enhance the overall security of the door.

It’s important to note that no door material is entirely immune to forced entry, and the overall security of your entryway involves a combination of the door, frame, and lock system. If security is a top concern, considering a professional assessment or consulting with a security expert can provide personalized recommendations based on your specific needs.

Are fiberglass doors burglar proof?

Fiberglass doors are not entirely burglar-proof, but their durability and resistance to impacts can be enhanced with solid construction and additional security features like high-quality locks and reinforcements.

Are fiberglass doors better than steel for cold weather?

Fiberglass doors generally perform well in cold weather. They have good insulation properties and are less prone to conducting temperature, making them a suitable choice for cold climates.

However, steel doors with proper insulation can also be effective in cold weather.

The choice between fiberglass and steel often depends on specific preferences and requirements.

Are Fiberglass Doors Stronger Than Wood Doors?

Fiberglass doors are 3 times stronger than wood doors and more durable.

Are Fiberglass Doors Resistant To Weather?

Fiberglass doors are highly resistant to weather, including extreme heat and cold.

Are Fiberglass Doors Energy-Efficient?

Yes, fiberglass doors are often considered energy-efficient. They provide good insulation, helping to maintain indoor temperatures and reduce energy consumption for heating or cooling. This insulation property contributes to energy efficiency, making fiberglass doors a favorable choice for many homeowners.


Overall, fiberglass doors make for a highly secure option for any home or building. While they may not be the only option available, fiberglass has shown time and time again to stand up to even the toughest break-in attempts.

With their durable structure, resistance to damage from the weather, and customizable options, it’s no wonder why fiberglass doors are becoming more and more popular among homeowners.

So, whether you’re looking to replace your current door or simply want to increase your home’s security, fiberglass doors are certainly worth considering.

5/5 - (1 vote)