JASP Construction & Design Diamond Bar CA
Business Overview
JASP Construction & Design Diamond Bar CA is a local general contractor and plumbing service serving Diamond Bar and nearby communities. The company handles both residential and commercial work, from kitchen remodels to new single-family home construction. A small team of licensed contractors, plumbers, and designers works on projects day-to-day.
Emergency plumbing service is available for urgent leaks and stoppages. Regular hours are Monday–Saturday, 8:00 AM–6:00 PM; closed on Sunday. The team responds quickly in the San Gabriel Valley and the nearby parts of Orange County and the Inland Empire.
Key Services
Services are grouped to make it easy to find what homeowners and business owners commonly need:
- Additions & New Construction: balcony addition, garage addition, new room and new story design, guest house/ADU, modular and manufactured home construction.
- Remodeling & Design: kitchen remodeling, bathroom remodeling, bedroom and laundry room additions, garage remodeling, patio and deck construction.
- Commercial & Structural Work: common area additions, structural repair, landscaping building construction, building additions.
- Plumbing & Inspections: general plumbing, plumbing inspection, emergency plumbing response during business hours.
Areas Served
JASP Construction & Design serves homes and businesses across the region, including:
- Diamond Bar, CA
- East Irvine, CA
- Rowland Heights, CA
- Walnut, CA
- Wrightwood, CA
- Avalon, CA
The company also takes projects throughout Los Angeles County, the San Gabriel Valley, Orange County, and parts of the Inland Empire.
Company History
Founded more than 12 years ago, JASP Construction & Design began as a small remodeling crew focused on local homes. Over time the firm added licensed plumbers, designers, and project managers to handle larger work, including ADUs and commercial renovations.
Growth came from repeat clients and neighborhood referrals. The business maintains a practical approach: clear estimates, visible timelines, and teams who stay on site until the job milestones are met.
Leadership
Leadership is composed of contractors who live and work in the region. They bring hands-on experience in construction trades and plumbing inspections. Team members attend local permitting meetings when needed and coordinate with inspectors to keep projects moving.
The leadership keeps ties to the community by working on neighborhood projects and supporting local housing needs, such as ADU conversions that fit Southern California lot patterns and climate concerns.
Specialties & Highlights
- Over 12 years serving residential, commercial, and ADU projects across the San Gabriel Valley and nearby counties.
- Licensed plumbing and construction crews for combined remodel-and-plumbing scopes.
- Experienced in new story design, structural repair, and building-code coordination.
- Practical scheduling that considers California weather and regional permitting timelines.
Why Locals Choose JASP Construction & Design
Residents of Diamond Bar and neighboring towns hire JASP Construction & Design Diamond Bar CA for steady communication, reliable crews, and a clear process from design to finish. The company focuses on realistic timelines and practical solutions suited to Southern California homes — whether a hillside property, a ranch-style house, or a compact lot for an ADU.
For homeowners and businesses seeking a working contractor and plumbing team with local experience, JASP offers a straight-forward, fact-based approach and years of real project work in the region.
Contact Information
JASP Construction & Design
: 20653 Lycoming St Unit A-06, Diamond Bar, CA 91789
Business Services
- Balcony addition
- Bathroom remodeling
- Bedroom remodeling
- Building additions
- Construction design services
- Deck construction
- Garage remodeling
- Patio, porch, or terrace construction or installation
- Kitchen remodeling
- Landscaping building construction
- Guest house or ADU construction
- Manufactured home construction
- Modular home construction
- Single-family home construction
- New structure construction
- Plumbing inspection
- Remodeling
- New room addition
- Bathroom addition
- Bedroom addition
- Common area addition
- New room design
- Garage addition
- Kitchen addition
- Laundry room addition
- New story addition
- New story design
- Structural repair
Business Location & Hours
| Mon: | 8:00 AM - 6:00 PM |
| Tue: | 8:00 AM - 6:00 PM |
| Wed: | 8:00 AM - 6:00 PM |
| Thu: | 8:00 AM - 6:00 PM |
| Fri: | 8:00 AM - 6:00 PM |
| Sat: | 8:00 AM - 6:00 PM |
| Sun: | Closed |

















