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Understanding Common Issues with Steel and Fiberglass Entry Doors and Signs for Replacement

Writer: bayhomeswd
bayhomeswd
Jun 5
3 min read

Entry doors play a crucial role in protecting your home, enhancing curb appeal, and providing energy efficiency. For homeowners in Oakville, Burlington, Milton, and Halton Hills, choosing between steel and fiberglass doors is common. Both materials offer durability, but they come with their own set of challenges. Knowing the common door problems and recognizing when to replace entry doors can save you money and improve your home's security and comfort.


Close-up view of a steel entry door with visible rust spots near the bottom
Rust spots on steel entry door near bottom

Common Problems with Steel Entry Doors


Steel doors are popular for their strength and security, but they are prone to specific issues:


  • Rust and Corrosion

Steel doors can develop rust, especially if the paint or protective coating is damaged. Rust weakens the door structure and can spread quickly if not addressed. This is a frequent problem in areas with high humidity or frequent rain.


  • Dents and Scratches

Steel doors dent more easily than fiberglass. Accidental impacts from bikes, balls, or moving furniture can leave marks that are difficult to repair without repainting.


  • Paint Peeling and Fading

Over time, exposure to sun and weather can cause paint to peel or fade. This not only affects appearance but also exposes the steel to moisture, increasing the risk of rust.


  • Warping and Misalignment

Though steel is sturdy, extreme temperature changes can cause slight warping. This may lead to doors that don’t close properly or gaps that let in drafts.


How to Fix Entry Door Issues with Steel Doors


  • Rust Treatment

Sand down rust spots, apply a rust-inhibiting primer, and repaint with weather-resistant paint. Regular inspections help catch rust early.


  • Dent Repair

Small dents can be filled with auto body filler and repainted. Larger dents may require professional help or door replacement.


  • Repainting

Use high-quality exterior paint designed for metal surfaces. Repaint every few years to maintain protection.


  • Adjust Hinges and Weatherstripping

Fix warping or misalignment by tightening or replacing hinges and installing new weatherstripping to seal gaps.


Common Problems with Fiberglass Entry Doors


Fiberglass doors are known for their resistance to dents and rust, but they have their own challenges:


  • Cracking and Splitting

Fiberglass can crack or split if exposed to extreme impacts or temperature fluctuations. Cracks can worsen over time and allow moisture inside.


  • Fading and Discoloration

Prolonged sun exposure can cause fiberglass doors to fade or yellow. This affects curb appeal and may require refinishing.


  • Swelling and Warping

Though rare, fiberglass doors can absorb moisture if the outer finish is damaged, leading to swelling or warping.


  • Hardware Issues

Locks, handles, and hinges on fiberglass doors may loosen or corrode, affecting door function.


How to Fix Entry Door Issues with Fiberglass Doors


  • Crack Repair

Small cracks can be repaired with fiberglass filler and paint. Larger damage might require door replacement.


  • Refinishing

Use a gel coat or paint designed for fiberglass to restore color and protect the surface.


  • Seal Damage

Inspect and repair any chips or scratches to prevent moisture absorption.


  • Hardware Maintenance

Regularly tighten and lubricate locks and hinges. Replace corroded hardware promptly.


Eye-level view of a fiberglass entry door with minor cracks and faded paint
Fiberglass entry door showing minor cracks and faded paint

When to Replace Entry Doors


Knowing when to replace entry doors is as important as fixing minor issues. Here are signs that replacement is the best option:


  • Extensive Rust or Corrosion on Steel Doors

If rust has eaten through the door or spread extensively, repairs won’t restore strength or appearance.


  • Large Cracks or Structural Damage on Fiberglass Doors

Deep cracks or splits that compromise insulation and security require replacement.


  • Persistent Warping or Misalignment

Doors that no longer close properly despite adjustments waste energy and reduce security.


  • Energy Inefficiency

Older doors that cause drafts or have damaged seals increase heating and cooling costs.


  • Outdated Appearance

If your door no longer matches your home’s style or has faded beyond repair, a new door can boost curb appeal.


  • Repeated Repairs

When you find yourself fixing the same problems frequently, investing in a new door is more cost-effective.


Tips for Choosing a New Entry Door


  • Match Material to Climate

Fiberglass performs well in wet or humid climates, while steel offers strong security but needs protection against rust.


  • Consider Energy Efficiency

Look for doors with good insulation ratings and weatherstripping.


  • Pick a Style That Fits Your Home

Choose colors and designs that complement your home’s architecture.


  • Professional Installation

Proper installation ensures your door functions well and lasts longer.


Final Thoughts


 
 
 

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