WINDOW RESTORATION

Preserve the character and craftsmanship of your original windows. We repair, rebuild, and weatherize historic wood windows to improve efficiency and extend their life—all while maintaining their authentic architectural detail.

❈ Preserve history – Maintain the craftsmanship and character of original architecture

⛅︎ Improve efficiency – Weatherstripping, reglazing, and repairs boost performance without replacement

♺ Sustainability – Restoration reduces waste and supports eco-friendly building practices

☻ Cost-effective – Skilled repairs often cost less than full replacement over time

Delaware, New Jersey, Pennsylvania, old home, ap lohmann, sustainable design, restoration, historic restoration, family business, window restoration, wood windows, wood doors, carpentry

Why Restore?

Delaware, New Jersey, Pennsylvania, old home, ap lohmann, sustainable design, restoration, historic restoration, family business, window restoration, wood windows, wood doors, carpentry
Delaware, New Jersey, Pennsylvania, old home, ap lohmann, sustainable design, restoration, historic restoration, family business, window restoration, wood windows, wood doors, carpentry

WINDOW RESTORATION 

Services

  • We repair and reinforce deteriorated wood, strip old paint, and refinish with weather-resistant coatings.

  • Cracked, foggy, or inefficient glass? We replace it while preserving the original frame structure.

  • Sticking hinges, broken latches, or missing handles—we restore or source authentic replacements to keep your doors and windows functional and secure.

  • Restore smooth functionality to double-hung windows with new cords, counterweights, and tune-ups.

Custom Storm Windows

Preserve. Protect. Perform.

Our custom storm windows are designed to fit historic windows perfectly—preserving their original look while adding modern energy efficiency, weather protection, and noise reduction. With low-profile frames and multiple finish options, they blend seamlessly with any period-style home.
old home, ap lohmann, sustainable design, restoration, historic restoration, family business, window restoration, wood windows, wood doors, carpentry

Paint Services Offered

  • Window restoration and preservation, wood repairs, wood windows, historic

    Conventional Paint

    Modern paints—like acrylic latex or alkyd enamels—are more common today, and they offer a different type of protection. eals the surface to create a strong barrier against rain and UV rays, offers a wide range of colors to match any design, and requires less upkeep in the short term.

  • Woodworking workspace with paint cans, brushes, wooden pieces, and color samples.

    Linseed Oil

    Linseed oil is a traditional, plant-based finish that penetrates deep into the wood fibers, nourishing and strengthening the material from within. We source ours from Earth + Flax, a company known for crafting high-quality, sustainable, and historically accurate finishes.

    Visit Earth + Flax website

Check out our recent

Restored Windows

Check Out Our Recent Restored Windows

Expert window restoration for historic homes and buildings. AP Lohmann preserves original craftsmanship using traditional tools and lead-safe practices.
Expert window restoration for historic homes and buildings. AP Lohmann preserves original craftsmanship using traditional tools and lead-safe practices.
Expert window restoration for historic homes and buildings. AP Lohmann preserves original craftsmanship using traditional tools and lead-safe practices.
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation MD
Historic preservation carpentry window restoration architecture preservation maryland
Historic preservation carpentry window restoration architecture preservation PA
Historic preservation carpentry window restoration architecture preservation PA west chester
Historic preservation carpentry window restoration architecture preservation west chester pa
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation maryland
Historic preservation carpentry window restoration architecture preservation
Historic preservation carpentry window restoration architecture preservation
Expert window restoration for historic homes and buildings. AP Lohmann preserves original craftsmanship using traditional tools and lead-safe practices.
Expert window restoration for historic homes and buildings. AP Lohmann preserves original craftsmanship using traditional tools and lead-safe practices.