Book a free site visit Full building envelope expertise
Building Envelope Contractors in Southern California
One contractor for every exterior system on your building — roofing, waterproofing, sealants, coatings, and concrete restoration. If it protects your building from the outside in, Syntech handles it.
Full-service expertise
Full Building Envelope Services Across Southern California
Most contractors specialize in one piece of the building envelope. Syntech covers all of it. That means no gaps in coverage, no subcontractor handoffs, and no one pointing fingers when systems interact. Here's what we handle:
Roof Restoration & Maintenance
Your roof is the first line of defense in the building envelope. Syntech's proprietary roof coating system installations reduce HVAC load by up to 40%, extend roof life, and protect your property from Southern California's sun, wind, and seasonal rain. Backed by a 20-year no-dollar-limit warranty on labor and materials.
Learn moreSealants & Coatings
Building envelope integrity depends on more than just the roof. Syntech seals and coats every vulnerable surface — windows, walls, balconies, planters, plazas, and parking garage traffic decks. With certified swing stage and access equipment operators, if there's a leak anywhere on your building's exterior, we can fix it.
Learn moreConcrete & Masonry Waterproofing
Cracks, spalls, and failing masonry are not just cosmetic — they are entry points for water into your building envelope. Syntech's concrete and masonry team handles everything from surface repairs to structural restoration, keeping your building watertight and compliant.
Learn moreBelow Grade & Injection Specialty Waterproofing
Some building envelope failures don't have a straightforward fix. Syntech's specialty waterproofing team handles the complex cases — below-grade foundations, buried plazas, and structural cracks that require injection technology rather than surface treatment.
Learn moreYour exterior partner
Your Exterior Building Envelope Partner in Southern California
The building envelope is every system that separates the interior of your property from the outside: the roof, walls, windows, joints, waterproofing layers, and everything in between. When any one of these systems fails, the consequences are rarely contained. Syntech brings hospitality to construction: one experienced team, one point of contact, and a comprehensive approach to keeping your entire building envelope intact.
“Bringing Hospitality to Construction”
Property Managers
Fast quotes, minimal disruption, and a responsive single point of contact from first call to project close.
Building Owners & Investors
Protect your asset value with preventative maintenance plans, coating systems, and full restoration scopes.
General Contractors, Architects & Engineers
A trusted subcontractor and specification-grade partner for commercial roofing, waterproofing, SB-721 compliance, and building envelope work on new builds and renovations.
Warehouse & Industrial Operators
Tilt-up joints, window wet seals, roof coatings, below-grade waterproofing, and penetrating sealers for SoCal's industrial corridors.
Not just a roofer.
Not just a waterproofer.
A contractor who sees the full picture and fixes the right problem.
Bringing Hospitality
to Construction.
Why Syntech
What Sets Syntech Apart as a Building Envelope Contractor
One contractor, every exterior system
Roof, walls, windows, joints, decks, foundations: it's all connected. We evaluate the building envelope as a system, find the true source, and fix it. No finger-pointing between subs.
We pick up the phone
Call us and reach a person. Not AI. In building envelope emergencies, that's the difference between a minor repair and a major repair.
We fix what’s broken—nothing more
You get honest, tiered options (Good, Better, Best) and you decide what fits your budget. No inflated scopes. No unnecessary work.
Notable projects
Building Envelope Projects Across Southern California
Every building envelope is different. Here's a look at how Syntech approaches complex, real-world scopes — and why property managers, GCs, and building owners come back to us.
01Full Building Envelope Reseal
CSU San Bernardino
Overcoming Challenges — Compressed schedule, 24/7 occupied campus, and no existing rooftop infrastructure for swing stage access. Syntech engineered custom tieback and lifeline systems and maintained real-time communication with university engineering staff throughout.
02Full Window System Sealant Repair
Chino Hills City Hall
Leak Free: 15 Years in the Making — Custom metal eyebrows on the second-floor windows had been causing leaks for years. By treating the window as part of the building envelope system — not an isolated component — Syntech identified the root cause and delivered a permanent fix with proper transitions.
03Window Wet Seal & Window Perimeter
Pelican Hills Mansion
Down to the Millimeter — Windows spanning over 20 feet required sealant lines accurate to 1/32 of an inch. Only a master craftsman could accomplish the symmetry and precision this scope demanded. The result: a flawless seal that matched the design intent of a world-class property.
04Deck & Wall Waterproof Coating
Toyota Arena VIP Section
Out of Sight, Out of Mind — Toyota Arena, with its chaotic event schedule, needed something aesthetic, waterproof, durable, and with a fast cure to work around its busy schedule without disrupting operations. Windows to work were as low as just a couple of days. Syntech installed a 10-year-warrantied custom Tremco pedestrian deck and wall coating system. Paint and standard epoxy coatings need to be touched up every few years, but with just a rinse after events, these Tremco systems will look brand new for years to come.
05Roof Restoration
Camino Nuevo School District
Ten More Years Under the Dome — The school needed a practical, budget-conscious way to extend the life of its distinctive domed roof for roughly a decade before a planned sale — and they needed it done in just two weeks. Syntech installed Tremco Ice Roof liquid-applied coating, delivering the required performance without over-engineering the system. The curved geometry, the highly slippery surface that developed after application, and the compressed schedule all demanded heightened safety protocols and precise sequencing. The result was a clean, durable, ten-year solution completed on time that protected the building and kept costs aligned with the owner’s timeline.
06Full Building Envelope Reseal
One Wilshire
Zero Tolerance at the Digital Crossroads — One Wilshire is one of the world’s most critical telecommunications hubs, routing traffic across the globe. The aging envelope — stone and marble joints combined with a decades-old 2-inch lock-strip gasket window system — could no longer be left to chance. Syntech executed a complete building envelope reseal that included precision stone and marble sealant work plus a full overlay of the lock-strip system. The result is a continuous, high-performance weather barrier that protects both the structure and the mission-critical infrastructure it houses.
07Façade Restoration & Targeted Window Sealant Repair
Northrop Grumman
Test First, Spend Less — On a secure Northrop Grumman campus with classified buildings, any façade work had to be executed without disrupting operations. Initial assumptions pointed to a large-scale restoration that could have run into the hundreds of thousands. Syntech performed systematic leak testing and isolated the water intrusion to window perimeters only. What began as a major façade project was reduced to a precise, limited window sealant repair — delivering the necessary protection at a fraction of the expected cost while maintaining full operational continuity.
08Full Building Envelope Reseal
UCI Air-b Building
Access Built Against the Clock — The Air-b Building required a complete envelope reseal before the rainy season, yet no swing-stage infrastructure was in place. With time running short, Syntech partnered with specialty access teams to design and fabricate custom swing-stage equipment capable of reaching every window and eyebrow. The result was a fully resealed building envelope delivered on an accelerated schedule — protecting the structure just ahead of the weather.
Service area
Building Envelope Contractors Serving All of Southern California
Syntech is headquartered in Riverside, CA and serves commercial, industrial, multifamily, and institutional building envelope clients throughout Southern California.
Core cities served
Building envelope FAQs
Know what protects your property.
What is a building envelope contractor?+
A building envelope contractor addresses the connected exterior systems that keep water, air, and weather out of a property—not only the roof.
What does a building envelope include?+
Roofs, walls, windows, doors, joints, decks, foundations, below-grade systems, coatings, sealants, and waterproofing layers.
Where does Syntech provide services?+
Across Los Angeles, Riverside, San Bernardino, Orange, and Ventura counties in Southern California.
Free site visits across SoCal
Get a Fast, Honest Proposal for Your Building Envelope
Whether you're managing a leaking commercial building, dealing with failed sealants on a parking structure, or planning a full building envelope restoration, Syntech offers free site visits throughout Southern California. We'll assess your property, identify what needs attention across every system, and deliver a clear, no-pressure cost proposal.
Every project has a unique scope of work. Not every leak is straightforward. We take pride in solving your problem by taking the full building envelope into consideration — and providing solutions that fit your goals and budget.
