Window RESTORATION

Over time, even the most well-crafted windows and doors can suffer from wear, damage, and exposure to the elements. At AP Lohmann General Contracting, we specialize in expert window and door restoration that revives original charm while improving energy efficiency, functionality, and structural integrity.

restore with us

windows, window preservation, historic preservation, historic

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

windows, window restoration, 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.

Choose The Right Paint for you!

AP Lohmann General Contracting / Fine Carpentry, historic preservation, window restoration, restore, preserve, sustainable windows

Linseed Oil

Linseed oil is a traditional, plant-based finish that’s been used for centuries to protect wood. Unlike modern acrylic or latex paints, linseed oil penetrates deep into the fibers, feeding and strengthening the wood from within.

We source our linseed oil from Earth + Flax, a company known for producing high-quality, sustainably made, and historically accurate finishes.

  • Breathable protection – allows moisture to escape, preventing trapped water and rot.

  • Long-lasting – with simple periodic maintenance, windows can last generations.

  • Eco-friendly – made from flax seeds, free from synthetic solvents.

  • Authentic look – enhances the natural beauty and grain of the wood.

AP Lohmann General Contracting / Fine Carpentry, historic preservation, window restoration, restore, preserve, sustainable windows

Modern paints—like acrylic latex or alkyd enamels—are more common today, and they offer a different type of protection.

  • Seals the surface – creates a strong barrier against rain and UV rays.

  • Wider color selection – easily matches existing décor or design schemes.

  • Lower upkeep initially – requires less frequent touch-ups in the short term.

  • Durability – resists peeling and fading when properly applied over a sound substrate.

Conventional Paint

Check out our recent portfolio