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Poured Concrete FoundationsPoured concrete foundations are our specialty. Our highly experienced contractors can produce a quality concrete foundation, leaving the work site ready for your framing contractor.More About Poured Concrete FoundationsPoured Concrete Floors & SlabsWhether your concrete floors are for residential or commercial use, our expert contractors will ensure the proper base, placement, and curing to ensure a high quality product.More About Concrete Floors & SlabsBoston Metro Excavation ServiceOur full-service specialization in both excavation and poured foundations allows you to use one company to efficiently complete your concrete construction projects.HomeYour Boston Concrete Foundations Specialists Serving the Boston Metro AreaFor over 25 years, the experts at D. A. Welch Construction have provided concrete foundations to the Boston metro area.