Building construction and repair; Construction and renovation of buildings; Construction and repair of buildings; Construction of buildings; Construction, maintenance and renovation of property; Custom construction and building renovation; General contractor services, namely, plumbing, heating and air conditioning, carpentry, drywall, painting, electrical, building and framing contractor services; Heating contractor services; Heating equipment installation and repair; House and building demolition; Installation and maintenance of photovoltaic/solar thermal hybrid installations; Installation and maintenance of solar thermal installations; Installation of building insulation; Installation of insulating materials; Installation, repair and maintenance of heating equipment; Maintenance and repair of buildings; Refurbishment of buildings; Renovation and restoration of buildings; Repair and installation services, namely, the installation of heating, cooling and environmental control systems primarily using solar energy, renewable energy resources and rainwater; Self-perform construction skilled trades, namely, concrete work, carpentry and selective demolition services