Von Euw Backhoe

JMJ Construction

JMJ Construction operates from Benton Road in Winchester as a general contractor focused on residential remodels and room additions across the southern valley — kitchen and bathroom work leads the list, with primary-bath upgrades and kitchen overhauls the bread-and-butter scope for the aging tract housing stock built through the 1990s and 2000s. The shop also handles ADU projects, garage conversions, and ground-level room additions, the kind of incremental-expansion work that's become routine as California's ADU regulations opened options for homeowners seeking rental income or guest space. Build-only rather than design-build is the standard model here, meaning homeowners or architects bring plans and JMJ executes the work. Winchester's unincorporated location matters for timelines — county permitting moves differently than city departments in Temecula or Murrieta, and slab construction common to the area shifts how crews approach foundations and plumbing rough-ins. The contractor suits homeowners who've already settled on scope and drawings, have existing relationships with designers or architects, and need a crew experienced in the specific regional conditions that govern Winchester renovation work.