Custom Home Remodeling & Structural Additions in Diamond Bar, CA
Diamond Bar features beautiful residential hillsides and classic Southern California custom homes. Hammertime 24/7 is the premier contractor for homeowners looking to open up layouts, build custom extensions, or construct accessory dwelling units (ADUs).
We coordinate engineering reviews and building permits with the City of Diamond Bar Building Safety Department, ensuring that retaining walls, structural foundations, and framing match all local seismic codes.
Our hands-on design-to-completion management guarantees that structural changes, premium cabinet layouts, and custom stone installations are executed to the highest industry standards.

Remodeling Services Available in Diamond Bar
Every project is managed in-house, from structural framing to custom cabinetry and high-end pool finishes.

ADUs (Accessory Dwelling Units)
Maximize your property value with custom detached or attached ADUs — fully designed, permitted, and turnkey from architectural plans to key handover.

Open Concept Framing
Transform cramped, walled-off rooms into open, flowing floor plans. We safely remove load-bearing walls, install structural beams, and reconfigure your entire layout.

Whole Home Renovations
Completely transform your entire home under a single contract — structural layout changes, open concept conversions, utility updates, and luxury finishes throughout.

Custom Pools & Hardscape
Design and build custom gunite pools, elevated spas, concrete decks, outdoor kitchens, and complete backyard environments tailored to your lifestyle.

Outdoor Living
Expand your usable living space with custom outdoor kitchens, concrete decks, fire features, pergolas, and full landscape integration.

Bathroom Remodels
Create your personal spa oasis with walk-in wetroom showers, dual vanities, soaking tubs, custom tile patterns, and heated flooring.
