How to Repair a Rotted Exterior Door in Coquitlam

November 19, 2025

Exterior doors take on a lot of weather in Coquitlam. Rain, moisture, and constant exposure can slowly break down the wood at the bottom of a door. Over time, rot forms and the surface becomes soft, damaged, or cracked. Many homeowners think this means the door needs replacing, but a proper epoxy repair can bring it back to full strength and extend its life for years.

This guide walks you through how an exterior door repair is done using epoxy. If you want to try it yourself, the steps below will help. If you prefer a professional touch, Microworks Handyman is always here to help Coquitlam homeowners restore their doors safely and properly.

Tools Needed

  1. Utility knife
  2. Chisel / scraper
  3. Sandpaper or sanding sponge
  4. Drill with small bit (optional)
  5. Paintbrush

Materials Needed

  1. Two part exterior wood epoxy
  2. Epoxy hardener
  3. Primer
  4. Exterior paint

Safety First

Before you start, protect yourself with basic PPE (Personal Protective Equipment).

  1. Safety glasses
  2. Work gloves
  3. Dust mask or respirator

Step 1: Remove the Damaged Wood

Start by scraping away the loose or soft wood at the damaged area. A chisel or sharp scraper works well. Remove everything that feels spongy or weak so the epoxy has a solid base to bond to. Be patient here, since the most common cause of repair failure is leaving some rot behind.


Step 2: Prep the Area for Epoxy

Once the rot is removed, sand the area to smooth out rough edges. If the cavity is deep, drill a few small holes inside the space to help the epoxy lock into the wood. Clean away dust and debris so the surface is ready for the filler.

   


Step 3: Mix and Apply the Epoxy

Follow the instructions on your epoxy kit. Most exterior repair epoxies require you to mix a resin and a hardener. Once mixed, the epoxy begins to set, so work steadily. Press the epoxy firmly into the opening and shape it to match the profile of the door as best as you can.


Step 4: Sand the Cured Epoxy

After the epoxy cures, sand it smooth and flush with the surrounding surface. This step helps the repair disappear once painted. Sand until the transition between wood and epoxy feels even and level.


Step 5: Prime and Paint

Apply a coat of exterior primer to seal the repair. Primer helps stop moisture from seeping in and ensures the paint bonds correctly. Once the primer dries, apply two coats of matching exterior paint. When the repair is sealed and painted, the door is ready for regular use again.

   


Why Coquitlam Homeowners Trust Microworks Handyman

Microworks Handyman specializes in exterior repairs that protect your home from moisture and weather damage. Our epoxy repair process strengthens your door, restores its appearance, and extends its lifespan. You get a solid, long-lasting fix completed with clean workmanship and attention to detail.

If you prefer a professional to repair your exterior door, our Coquitlam team is ready to help.


Before Hiring Any Handyman, Make Sure They Have:

  1. WorksafeBC coverage
  2. Valid business license
  3. Liability insurance
  4. Warranty offered on work

Need Help With Your Exterior Door Repair?

Contact Microworks Handyman to book your repair in Coquitlam. We provide reliable service, clear communication, and long-lasting results.