When choosing between PVC and aluminum windows and doors, customers should first consider their climate—PVC is better for colder regions due to its excellent thermal insulation, while aluminum (with thermal break) performs well in hot or coastal climates. Next, assess the building type and style: PVC suits traditional or residential homes, while aluminum fits modern or commercial designs with large glass areas. Budget is also important—PVC is more cost-effective, while aluminum is more durable and stylish but higher priced. Finally, consider maintenance and lifespan—both materials are low maintenance, but aluminum offers greater structural strength and a longer lifespan for demanding environments.