General Contractors

Your Building Envelope Construction Partner for Predictable, Inspection-Ready Results

Synapse Construction partners with General Contractors across the Puget Sound to deliver watertight, code-compliant envelope installations that stay on schedule and stand the test of time. From WRB integration to complex siding systems, we help GCs eliminate risk, reduce rework, and strengthen their reputation with owners and architects.

Modern new-build residence with Equitone fiber-cement panels, Hardie board-and-batten siding, and clear cedar accents installed by Synapse Construction as part of a full building envelope package in Black Diamond, WA. — High-performance new-build envelope featuring Equitone fiber-cement panels, Hardie board-and-batten siding, and clear tongue-and-groove cedar. Synapse Construction delivered full WRB integration, detailing, and exterior installation for this modern residence in Black Diamond.

Why General Contractors Choose Synapse Construction

Your schedule, your risk, and your reputation depend on how well your subcontractors perform. That’s why we’ve built a system that eliminates the most common GC challenges:

We Solve the Pain Points That Slow Projects Down

Inspection failures from improper WRB/flashing
Trade sequencing conflicts
Poor documentation or unclear scopes
Subcontractors who miss deadlines
Punch list items that drag into close-out
Envelope failures that create warranty exposure

When Synapse manages the envelope, you get reliable timelines, clean execution, and fewer surprises.

Our Envelope Process (Designed for GCs)

We’ve adapted our Synapse Project Success Plan specifically for GC-led projects.

1. Pre-Construction Alignment

Before a single board goes up, we ensure alignment with your field and project management teams.

Plan + spec review
Recommendations for constructability
Clarified scopes to avoid change orders
Submittals + product data
Scheduling integration with other trades

Outcome: Clear expectations, reduced risk, and full visibility from day one.

2. Jobsite Setup & Safety

Our crew arrives trained, briefed, and coordinated with your superintendent.

Site walk + staging plan
Safety onboarding + compliance documentation
Communication protocols (Procore, email, daily logs, Slack, etc.)
Material delivery planning

Outcome: A smooth start that prevents bottlenecks later.

3. Precision Envelope Installation

Your project gets a dedicated team of building-envelope professionals.

WRB + waterproofing installation
Flashing + window integration
Siding systems (fiber cement, metal, cedar, panel assemblies, custom builds)
Deck waterproofing and structural rebuilds
Custom exterior detailing + trim

Outcome: Inspection-ready work backed by expert craftsmanship and manufacturer standards.

4. Close-Out & Warranty

We make your close-out fast and frictionless.

Self-performed punch lists
Final walkthrough
Documentation package
Warranty + maintenance guidance for owner/HOA

Outcome: Owners and architects trust your work — and your schedule stays intact.

Building Envelope Services for GCs

Synapse Construction provides complete envelope support for residential, mixed-use, and commercial projects:

Siding installation (panel, lap, cedar, metal, custom systems)
WRB + flashing systems
Windows + door installation
Deck waterproofing + rebuilds
Full envelope remediation
New construction + multi-family + mixed-use

Featured GC Project: Black Diamond Modern Residence

High-Design Residential Build (Architect Partnered)
Complete building envelope installation for a complex, architect-driven home. Synapse delivered WRB, waterproofing, Equitone panels, Hardie board-and-batten siding, cedar soffits, and flawless transitions across glazing and stone systems—ensuring a watertight, inspection-ready exterior.

Modern lakeside residence with Equitone fiber-cement panels, Hardie board-and-batten siding, and clear cedar soffits installed by Synapse Construction as part of a complete building envelope system in Black Diamond, WA. — Side elevation of this modern Black Diamond home highlighting Equitone panels, Hardie board-and-batten siding, cedar soffits, and premium waterproofing around the pool terrace—installed by Synapse Construction as part of a full envelope package.

Architectural exterior featuring Equitone panels, stone façade, large glazing systems, and precision waterproofing details installed by Synapse Construction on a high-end custom home in Black Diamond, WA. — Corner façade showcasing Synapse Construction’s integration of stone veneer, expansive glazing, Equitone panels, and detailed waterproofing transitions throughout this custom Black Diamond residence

Whether you’re building new construction, multi-family units, mixed-use developments, or a design-driven custom home, Synapse brings the envelope expertise your project depends on.

Get Started

“I was given the name of Synapse Construction, with a very positive recommendation, from our neighbor’s contractor. Each individual was a pleasure to talk to and work with and the work done was exceptional. I highly recommend Synapse Construction and will definitely hire them, as needed, in the future.”
- Sue M.

“We have received exceptional service and results from Synapse, and have actually used them multiple times. Synapse consistently shows great value and high quality work. There is real project management and continual communication, so we felt clear at every step what was happening. Everything is well documented and they hire quality people. ”
- Dan M.

“I just wanted to express my gratitude for the excellent work Synapse did for my home. The finished product exceeded my expectations. The constant professionalism, attention to detail, overall thoroughness, and willingness to accommodate unusual issues, on the fly, was a sigh of relief. Many companies would have ignored what Synapse proudly and willfully faced head on, and accomplished. I look forward to working with them on the next project! ”
- Ben D.

“Synapse were the only folks we found able to provide the level of quality and specialized expertise necessary for a fairly complicated project. The Synapse team completed the job in a manner that was both professional and efficient. From start to finish, I was impressed with their level of organization. I would strongly recommend Synapse Construction for any exterior or siding project.”
- Samuel R.

“They are knowledgeable, dependable, honest, and effectively communicated throughout the project. They helped guide the project through appropriate detailing and technical challenges while finely crafting a crisp and refined building enclosure. Without hesitation I have the highest recommendation for Synapse Construction.”
- D. Rusler

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