His style avoids the hazy edges of Impressionism. Coindre used a firm brush and clear outlines to define stone and timber. He focused on the physical weight of buildings. His compositions often place the viewer at a distance to show the relationship between a building and its surroundings. In works like Church at Marast, the sky and earth remain secondary to the geometry of the architecture. He preferred a restrained use of colour to maintain clarity.

Collectors value Coindre for his technical honesty. His paintings provide a direct window into nineteenth-century provincial life in France. He avoided the use of sentimentality or romantic exaggeration. The muted palette and architectural focus suit modern interiors that favour clean lines. These prints offer a sense of permanence and historical continuity for a contemporary home.