A bathroom addition is one of the most valuable upgrades you can make to your home. At Addition Los Angeles, we design and build modern, comfortable, and fully functional bathrooms that enhance daily living and significantly increase property value.
From expanding small bathrooms to adding a brand-new luxury suite, our team handles waterproofing, plumbing, framing, electrical, ventilation, tile installation, and all finishing details with precision and care.
Why choose our bathroom addition services?
Bathroom additions require precision — from plumbing layouts to waterproofing and ventilation. Our experts ensure your new bathroom is durable, efficient, and beautifully designed.
Precision Plumbing & Waterproofing
We handle all plumbing relocations, drainage, waterproofing, and sealing to prevent leaks and ensure long-term durability.
Clear & Transparent Communication
We keep you informed at every stage — from design, rough-in, and inspections to tile installation and final detailing.
Custom Designed Spaces
Walk-in showers, soaking tubs, vanities, skylights, storage niches — your new bathroom is built exactly to your lifestyle needs.
Full-Service Construction
We manage everything — demolition, framing, plumbing, electrical, tile work, fixtures, and final finishes.
What we offer
Our bathroom addition services include all phases from rough framing to luxury finishing. We ensure your new bathroom is functional, efficient, and visually stunning.
- Full bathroom additions from scratch
- New plumbing lines, drains, vents, and fixtures
- Shower, tub, and tile installation
- Lighting & ventilation upgrades
- Waterproofing, insulation, and code compliance
Before Construction
We prepare framing, rough plumbing, waterproofing, and insulation to build a safe and long-lasting bathroom foundation.
After Completion
Your new bathroom features premium finishes, elegant tilework, modern fixtures, and a fully optimized layout.
Service process
Our bathroom addition process is designed for clarity, efficiency, and reliable craftsmanship from the first measurement to the final silicone seal.
Design & Layout Planning
We map out plumbing locations, lighting, tile layouts, fixture placement, and overall flow.
Construction & Installation
Framing, waterproofing, plumbing, electrical, tile, and fixtures are completed with precision and quality control.
Final Detailing
We complete caulking, painting, lighting, hardware installation, and final clean-up.
Everything You Need to Know
Most bathroom additions take 4–10 weeks depending on plumbing complexity, tile work, and permitting.
Yes. Plumbing, electrical, and structural work require permits. We manage all city approvals for you.
Yes — we evaluate plumbing access, drainage, vents, and structural feasibility to determine the best location.
Costs vary depending on size, fixtures, tile selection, and plumbing complexity. We provide detailed estimates.
Absolutely — we align your new bathroom with your home's architecture and interior design for a seamless look.