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Revitalize Your External Bay Windows: A Guide to Repainting and Restoration

Updated: Apr 5

In these unprecedented times, when home improvement projects take center stage, revitalizing your external bay window becomes a prime opportunity to enhance both the aesthetics and structural integrity of your home's exterior. If your bay window, adorned with intricate stone mullions and historic charm, is showing signs of wear and tear, fret not. With the right approach and attention to detail, you can transform your bay window into a stunning focal point that stands the test of time.







Assessing the Surface: Sanding vs. Stripping for Bay Window Repair

Before delving into the repainting process, it's essential to assess the condition of your bay window's surface. For bay windows adorned with ornate Georgian, Victorian, or Edwardian features, such as intricate mullions, window sills, and lintels, a meticulous inspection is crucial. Determine whether the existing paint is cracked, peeling, or flaking, and assess the extent of any underlying damage to the window sills, frame, jamb, or mullion bases.

For minor surface imperfections, a thorough sanding down to remove flaky bits and create a smooth canvas may suffice. However, if the damage is extensive, involving multiple layers of old paint or structural issues such as deteriorating lintels or mullion bases, a more comprehensive approach, including complete stripping and repair, may be necessary.


Choosing the Right Primer and Paint for Bay Window Restoration

Given the unique characteristics of bay windows, particularly those adorned with sandstone mullions and historic detailing, selecting the appropriate primer and paint is paramount. Opt for high-quality products specifically formulated for masonry surfaces, including alkali-resisting primers designed to create a stable foundation on alkaline surfaces like sandstone.

When choosing paint, prioritize durability and weather resistance. Look for exterior paints labeled as "masonry paint" or "exterior paint for stone," ensuring they offer long-lasting protection against the elements while enhancing the natural beauty of your bay window. Additionally, consider the color scheme in harmony with your home's architectural style, whether it be Georgian elegance, Victorian opulence, or Edwardian sophistication.





Expertise in Bay Window Repair and Restoration

At Lepage Builders, we specialize in bay window repair and restoration, catering to bay and stone mullion windows from all periods, including Georgian, Victorian, and Edwardian. Our team of skilled craftsmen possesses the expertise and precision required to address a myriad of challenges, from window sill and frame repair to lintel restoration and mullion base reinforcement.


We restore each bay window to its former glory, preserving its architectural heritage while enhancing its structural integrity and visual appeal. Whether your bay window requires minor touch-ups or extensive repairs, trust us to deliver exceptional results.


Preparation and Application Tips for Bay Window Refurbishment


  • Thoroughly clean the surface of your bay window, removing any dirt, debris, or loose paint using a stiff brush or pressure washer.

  • Protect surrounding areas, including glass panes and adjacent walls, with painter's tape to prevent accidental paint splatters.

  • Apply primer evenly to the prepared surface, ensuring thorough coverage of window sills, frames, jambs, and mullion bases.

  • Allow the primer to dry completely before applying paint in thin, even coats, following the manufacturer's instructions regarding drying times and application techniques.

  • Consider applying a second coat of paint for added durability and a flawless finish that enhances the timeless elegance of your bay window.


Questions and Answers: Bay Window Repainting and Restoration


1. Do I need to completely strip the old paint from my bay window before repainting?


  • It depends on the extent of damage and the condition of the existing paint. Thorough sanding may suffice for minor imperfections, but extensive damage may require complete stripping for optimal results.

2. What type of primer should I use for my sandstone bay window?


  • An alkali-resisting primer is recommended for sandstone surfaces, as it creates a stable foundation and prevents adverse reactions with minerals present in the stone.

3. What kind of paint is suitable for masonry surfaces like bay windows?


  • Look for exterior paints labeled as "masonry paint" or "exterior paint for stone." These paints are formulated to withstand the elements and adhere well to porous surfaces like sandstone.

4. How should I prepare the surface of my bay window before painting?


  • Clean the surface thoroughly to remove dirt, debris, and loose paint. Protect surrounding areas with painter's tape, and ensure the surface is dry before applying primer and paint.

5. What is the estimated cost of repainting and restoring my bay window, including materials?


  • The cost typically ranges from £1200 to £2200, including materials. However, the final cost may vary depending on factors such as the size of the bay windows, extent of repairs needed, the amount of masonary and choice of paint and primer. The job pictured above was extensive masonary crack repairs, primed and painted for £1900 including materials in south east london.



By entrusting your external bay window repair and restoration project to Lepage builder, you're investing in craftsmanship, quality, and attention to detail that stand the test of time. Contact us today to schedule a consultation and embark on a journey to revitalize your bay window.


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