A & D Construction Services in Lakeside operates from the Jennings Vista neighborhood near Lake Jennings, providing general construction services to residential properties in eastern Lakeside's 92040 zip code. Renovation scopes that include bathroom and kitchen remodels require plumbing rough-in coordination with contractors such as Lake Plumbing & Leak Detection on Winter Gardens Boulevard. The firm's proximity to the Lake Jennings Campground corridor positions it to serve the residential developments and rural properties along Lake Jennings Park Road and El Monte Road. HVAC system upgrades during whole-house renovations run concurrently with framing and insulation phases, tying into mechanical installations by Hi-Tech Air Conditioning, Inc on Riverside Drive. Highest-value residential scopes include load-bearing wall removals with engineered steel beam installations, requiring structural calculations per California Building Code Chapter 16.