Specifications include, but are not limited to: General Licensed Contractor - General construction, i.e., drywall, doors, walls, windows, siding, roofing, painting, and flooring, etc. Specialized construction areas, i.e., HVAC, plumbing, electrical, refrigeration, etc. Additional specialized areas, i.e., concrete, asphalt, excavating, ground penetration, well services, sewer, etc. General Restoration & Repair - Carpentry. Overhead doors; repair and/or replacement. Roofing & siding. Concrete & asphalt. Ground penetration and excavating. Lathing, plastering and masonry. Solar contracting. Drilling wells, installing and/or repairing/replacing pumps, pressure tanks, and storage tanks. HVAC Services - Heating and air conditioning components. Heating and cooling vents and conduits; repair and/or replacement. Heating and cooling controls and wiring. Insulation of pipes, ducts, and vents. Installing heaters. Plumbing & Sewer Services Plumbing & sewer components and drains. Water heaters. Filtration and purification systems. Installing equipment to treat water. Insulation of pipes and ducts. Pipes and vents for gas. Boilers. Electrical & Lighting Services - Electrical wiring. Integrated ceilings. Low voltage. Lines to transmit electricity. Residential wiring. Photovoltaics. Interior Decorating & Remodeling Painting and decorating. Flooring and baseboards; repair and/or replacement. Drywall; repair and/or replacement. Carpentry & cabinetry; repair and/or replacement. Tile; repair and/or replacement. Doors; repair and/or replacement. Exterior Decorating & Remodeling Fencing and equipping playgrounds. Landscape contracting. Metal doors & windows. Prefabricated steel structures. Awnings & louvres. Exterior painting and trim. Erecting scaffolding and bleachers. Erection of temporary or semi-permanent exterior buildings, i.e., greenhouses, storage buildings, garages, pump houses, etc. Key & Lock Services - ey duplication. Repairing/replacing broken locks. Rekeying or replacing locks including master keys. Rekeying locked furniture, i.e., desks, filing cabinets, etc. Installation or repair of digital security locks.