Process piping in the field
California Infrastructure & Construction
Engineering, MEP, Welding & Construction
Single-source infrastructure solutions.
Total Trades Integrated bridges complex engineering design and high-precision field execution for commercial and industrial clients that need one accountable partner.
Engineering
Technical design, blueprinting, and project planning
MEP
Mechanical, electrical, and plumbing system delivery
Welding
Structural steel, fabrication, and high-pressure piping
Execution
Construction management, code compliance, and field oversight
TTI Advantage
One team, faster coordination, stronger execution
01
Communication Is Instant
Engineers, project leaders, and tradespeople work as one unit, reducing handoff delays and keeping decisions close to the work.
02
Costs Stay Controlled
A single-source model reduces subcontractor layering, lowers coordination overhead, and simplifies accountability.
03
Quality Is Engineered In
Every weld, route, and install decision is reinforced by technical planning and field-aware execution standards.
04
Delivery Stays Accountable
From design review through installation, clients work with one partner responsible for safety, sequencing, and results.
Reduce the gap
between plan and field.
About TTI
Engineering clarity.
Field-built results.
One integrated partner for engineering, MEP, welding, and construction.
Total Trades Integrated is a woman-owned, family-operated infrastructure and construction firm designed to bridge the gap between complex engineering design and high-precision field execution.
By consolidating Mechanical, Electrical, and Plumbing services, specialized welding, and professional engineering under one roof, TTI provides a seamless single-source solution for commercial and industrial clients.
The company is built around integrity, safety, and technical excellence so every project moves with clarity, coordination, and confidence from the first plan set to final delivery.
Underground coordination
Tight-access welding
Mechanical systems install
Mission Statement
To provide seamless, single-source infrastructure solutions by integrating expert engineering, precision welding, and comprehensive MEP services. We are dedicated to building with integrity, safety, and technical excellence to ensure every project is built to last.
Services
Integrated
services
TTI consolidates the scopes that usually get fragmented across multiple subcontractors, giving clients one coordinated team from planning and fabrication through install and closeout.
Structural Steel / High-Pressure Piping
Welding & Fabrication
Mechanical / Plumbing / Process
Piping & Plumbing Systems
Underground / Concrete / Site Logistics
Construction & Site Work
Engineering / BIM / Management
Design & Project Support
Commercial•Industrial•Infrastructure•Healthcare•Hospitality•Food Production•Water•Energy•Tenant Improvements•
Commercial•Industrial•Infrastructure•Healthcare•Hospitality•Food Production•Water•Energy•Tenant Improvements•
Design & Project Support
Bridge design intent
and field execution
Technical design, blueprint support, coordination workflows, and construction management are built into how TTI delivers projects. The goal is simple: cleaner handoffs, fewer surprises in the field, and systems that perform the way they were intended.
Technical Design
Engineering support focused on system efficiency, constructability, and the structural integrity the scope demands.
Blueprinting & Planning
Project planning and drawing support that help teams align early on scope, routing, access, and sequencing.
BIM Coordination
Digital coordination that resolves conflicts before crews mobilize and helps protect schedule performance in the field.
Construction Management
End-to-end oversight that keeps safety, code compliance, subcontractor coordination, and milestone delivery on track.
Delivery Workflow
Engineering ReviewBlueprint DevelopmentBIM CoordinationSubmittal PackagesSite SequencingCode Compliance
Our Legacy
From foundation
to fusion.
From P91 Construction in Washington State to Total Trades Integrated today.
Our story began in Washington State as P91 Construction in 2011. Built on grit, precision, and Washington-state reliability, we earned our reputation one project at a time, mastering the hard-hat industries where quality and safety are the only currencies that matter.
As our expertise expanded, so did our vision. The most complex industrial and commercial challenges require more than just a contractor; they require a seamless fusion of specialized disciplines. To reflect that growth, we evolved into Total Trades Integrated.
The word "Integrated" in our name is not a buzzword; it is our operational blueprint. By combining General Engineering (Class A) with full-scale MEP and structural welding under one roof, we deliver an ecosystem of services most companies have to outsource.
Our Promise
Whether you knew us as P91 or you are meeting us for the first time as TTI, our mission stays the same: deliver elite craftsmanship through a unified approach, so every project is built to last and engineered to excel.
Portfolio
Selected
work
Representative work across hospitality, healthcare, industrial production, petroleum infrastructure, and public works shows how TTI performs where precision, coordination, and uptime matter.
The Power of Integration
One operational blueprint. Every critical trade under one roof.
One Partner. Every Trade.
General Engineering, Class A
Heavy civil and structural solutions delivered to a Class A standard, from site development to complex structural footprints.
MEP & Plumbing Excellence
Integrated mechanical, electrical, and fluid systems engineered for seamless long-term facility operation.
Specialized Welding
Certified structural and industrial welding that holds up under the highest safety codes and field conditions.
Project Management
Single-point accountability that compresses timelines, reduces overhead, and keeps the field aligned with intent.
Licensed and Qualified
Active California contractor classifications.
Field Documentation
More of the work.
More of the conditions.
These added project photos help show the day-to-day environments TTI works in: trench work, fabrication, tight-access welding, structural coordination, and mechanical systems installation in real-world conditions.
Overhead fabrication
Tight-access fabrication and fit-up where layout accuracy and crew coordination are critical.
On-site welding
Field welding performed in active jobsite conditions with real access, safety, and logistics constraints.
Structural lift coordination
Site work that requires structural awareness, lift planning, and disciplined execution around heavy equipment.
Shop-side weld prep
Controlled fabrication and prep environments that support cleaner installs once crews hit the field.
Underground utilities
Field crews handling excavation, layout, and install where civil and mechanical scopes meet.
Industrial access
Heavy industrial environments that demand safe access, structural awareness, and disciplined execution.
Process vessel work
Technical interior work where planning, fit-up, and craft precision directly affect performance.
Specialty field welding
Precision welding support when installation access is tight and field conditions are unforgiving.
