01
Complete Home Remodeling
Whole-home renovations planned and managed from start to finish: layout changes, flooring, finishes and every detail in between.
Licensed General Contractor · Greater Los Angeles
Full-Service Construction & Remodeling in Los Angeles.
Home remodeling, kitchens and bathrooms, home additions, ADUs, interior and exterior renovations, and balcony and deck restoration, managed by an experienced team from the first estimate to the final walkthrough.
Built on Trust. Crafted with Precision.
Illustrative photo
- CSLB #1111931Class B – General Building Contractor
- Licensed, Bonded & InsuredIn the State of California
- Project ManagementClear scopes, schedules and progress updates
- Greater Los AngelesFrom the Westside to the Valley and Pasadena
Services
General contracting & remodeling services.
One licensed team for your whole project, from complete remodels, additions and ADUs to kitchens, bathrooms, renovations and balcony restoration across Greater Los Angeles.
02
Kitchen Remodeling
Custom cabinetry, countertops, lighting and layout improvements, built around the way you cook, gather and live.
03
Bathroom Remodeling
Walk-in showers, freestanding tubs, custom tile and vanities, with proper waterproofing behind every finish.
04
Home Additions
Room additions and second-story expansions that add space and blend with your home, from plans and permits to the final finish.
05
ADU Construction
Detached backyard ADUs and garage conversions, coordinated from planning and permits through construction.
06
Interior & Exterior Renovations
Interior updates, flooring and finishes, plus exterior upgrades: stucco, siding, windows, doors and outdoor living spaces.
07
Balcony & Deck Waterproofing and Restoration
Leak repairs, waterproofing, dry-rot and framing repairs, and complete deck restoration for homes and multi-unit buildings.
08
SB 721 Balcony Repairs
Repairs for balconies, decks and other elevated exterior elements identified in SB 721 inspection reports.
Not sure where your project fits? The 60-second Project Advisor will point you in the right direction.
Balcony & Deck
Balcony & deck waterproofing and SB 721 repairs.
Water damage on balconies and decks often starts out of sight. We find the cause, repair the damage and restore a durable, watertight surface, with clear recommendations at every step.
- Leak repair & waterproofingStop active leaks and protect the structure below with a properly installed waterproofing system.
- Dry rot & framing repairsRepair or replace damaged joists, beams and supports before the new surface goes on.
- Deck resurfacing & restorationNew decking, coatings, railings and finishes, built to last.
- SB 721 report repairsRepairs identified in SB 721 inspection reports for buildings with three or more units.
Before & After
Balcony & Deck Restoration
Weathered & water-damagedWorn decking, open joints and water reaching the framing below.
Structure & waterproofingDamaged wood repaired and a new waterproofing system installed.
Restored & protectedA finished deck, built to shed water and ready to enjoy.
Illustrative sequence. Photos of completed Construction By River projects will be shown here.
Portfolio
Our Projects
Kitchens, bathrooms, complete remodels, ADUs and additions, balcony and deck restoration, and exterior renovations. Illustrative photos are shown until our own project photography is added.
About Us
A licensed general contractor built on trust.
Construction By River is a California-licensed general building contractor serving homeowners and property owners across Greater Los Angeles.
We run every project with a clear written scope, an organized schedule and steady communication, supported by experienced construction teams and trusted trade partners. Our focus is quality craftsmanship, reliable execution and lasting relationships with our clients.
The company is led by founder River Mashiah, whose commitment to integrity and attention to detail sets the standard for every job.
- Professional project management
- Quality craftsmanship
- Experienced construction teams
- Clear communication
- Reliability & accountability
- Attention to detail
CSLB License #1111931 · Class B – General Building ContractorRiver M Construction & Consulting, doing business as Construction By River · Licensed, Bonded & Insured
Verify on CSLB ↗How we work
Our Process
Four clear steps, from the first conversation to the final walkthrough.
- 1
Consultation
We discuss your goals, priorities, property and budget.
- 2
Planning & Proposal
A clear written scope, schedule and proposal before any work begins.
- 3
Construction
Experienced crews, professional project management and regular progress updates.
- 4
Final Walkthrough
We review the completed work with you and take care of the final details.
Service Areas
Serving Greater Los Angeles & surrounding communities.
Based in Woodland Hills, we build and remodel homes and buildings across Los Angeles, from the Westside and Hollywood to the San Fernando Valley, Burbank, Glendale and Pasadena.
Westside
- Santa Monica
- Brentwood
- Pacific Palisades
- Bel Air
- Beverly Hills
- West Hollywood
Central Los Angeles
- Los Angeles
- Hollywood
San Fernando Valley
- Sherman Oaks
- Studio City
- Encino
- Tarzana
- Woodland Hills
- Calabasas
- Hidden Hills
- Chatsworth
- Northridge
- North Hollywood
Burbank to Pasadena
- Burbank
- Glendale
- Pasadena
…and surrounding communities across Greater Los Angeles.
Not sure we cover your area? Just ask.Request a Consultation
Contact
Request a consultation.
Tell us about your project and we’ll contact you to schedule a consultation. Prefer to talk now? Call, text or WhatsApp us.
Not sure where to start?Answer a few quick questions in our 60-second Project Advisor.
- Service area
- Greater Los Angeles · Based in Woodland Hills, CA
- License
- CSLB #1111931 · Class B · Verify ↗