Small-duct, central air conditioning systems.
Assessing and abating hazardous building materials.
With uses that range from utilitarian to decorative, concrete has been the building material of choice for centuries.
Bronze has been used as ornament for centuries in our built environment.
We have the latest word on alternative building materials when it comes to roofing, siding, and decks.
Some replacement materials will work in historic buildings; others will not. However, it's important to repair before replacing.