California's TrustedInstallation Specialists
Professional installation services for Gazebos, Pergolas, Sheds, Saunas, Playsets, and Gym Equipment across California & Reno.
Vacaville chose us 3 years in a row3×
Proudly recognized as a Nextdoor Neighborhood Fave in 2023, 2024, and 2025 for professionalism, quality workmanship, and trusted service.
"Thank you to our community for trusting Xavier Assembler year after year."
Premium Installation Services
From Costco gazebos to Yardistry pergolas, we handle every outdoor structure with precision and care.
Gazebo Installation
Costco, Yardistry & custom gazebos assembled to factory spec.
Pergola Installation
Wood, aluminum and modern louvered pergolas built to last.
Shed Assembly
Storage, garden and workshop sheds — leveled and weather-sealed.
Sauna Installation
Outdoor barrel and cabin saunas wired and finished correctly.
Playground Assembly
Safe, code-compliant playsets installed for backyards & HOAs.
Gym Equipment Installation
Home gyms, racks, cable machines and outdoor fitness setups.
Built On Craft. Backed By Trust.
We don't just assemble — we install with the discipline of a contractor and the eye of a craftsman.
CA & NV
Professionalism
Insured crews, clean uniforms, on-time arrival, every job.
Precision
Laser-leveled foundations, torque-spec hardware, factory-grade results.
Safety
OSHA-aware installs, anchored structures, code-compliant playsets.
Clean Finish
Site cleaned, packaging removed, ready to enjoy day one.
Reliable Communication
Real-time updates from quote to final walkthrough.
Experienced Team
15+ years installing outdoor structures across California.
Selected Installations
A glimpse at recent gazebos, pergolas, saunas, gym setups and playgrounds delivered across California & Reno.
Yardistry Gazebo
Walnut Creek, CA
Modern Aluminum Pergola
San Jose, CA
Outdoor Barrel Sauna
Reno, NV
Home Gym Setup
Sacramento, CA
Backyard Playset
Fremont, CA
Premium Outdoor Lounge
Concord, CA
117+ Five-Star Recommendations
"Outstanding job assembling my Costco gazebo. Level, square, and rock solid."
"Professional, punctual, and detail-oriented. Best contractor experience I've had."
"Highly recommend Xavier for outdoor projects. Pergola looks better than the showroom photo."
"They installed our outdoor sauna and home gym in two days. Flawless work."
"Great communication start to finish. Cleaned up everything. Worth every dollar."
"Falaram português comigo e instalaram um playground enorme com perfeição."
Ready to transform your outdoor space?
Free quotes. Fully insured. Serving California & Reno.