James HardieĀ® Siding Installation in Portland & Vancouver
Protect your home with premium fiber cement siding built for the Pacific Northwest, professionally installed with full weatherproofing, custom flashing, and commercial-grade precision.
- New Siding Installation & Full Replacement
- Certified James HardieĀ® Specialists
- In-House Custom Flashing & Weatherproofing Systems
Gorilla Built. Gorilla Strong
Commercial-grade materials and expert installation designed for Northwest weather.
Family-Owned & Local
A local team that treats every home like their own, honest, friendly, and reliable.
Built Right the First Time
Precision craftsmanship that uses only the highest-quality materials and eliminates costly future repairs.
Backed by 5-star reviews, licensed & insured
Built to Protect Your Home, Not Just Improve Its Look
Siding is your homeās first line of defense against moisture, wind, and long-term structural damage. In the Pacific Northwest, constant rain and seasonal changes demand materials and installation methods that go beyond surface-level appearance.
At Gorilla Works, we donāt just install siding. We build complete exterior protection systems. From moisture barriers and custom flashing to precision trim work, every layer is installed with long-term durability in mind.
Our Siding Services
Whether youāre building new or upgrading aging materials, Gorilla Works provides complete siding solutions designed for long-term durability and protection.
New Siding Installation
Building a new home or adding an extension? We install premium fiber cement siding systems with full moisture control, precise alignment, and clean architectural finishes.
- Proper sheathing preparation
- Full WRB installation (Tyvek / WeatherSmart)
- Custom flashing integration
- Clean trim and corner detailing
Best for: New builds, additions, full exterior upgrades
Siding Replacement
Old siding can lead to moisture damage, rising energy costs, and structural problems. We remove failing materials safely and replace them with durable, modern siding systems built for Northwest conditions.
- Removal of old siding
- Repair if needed
- Inspection of underlying structure
- Complete weatherproofing + new installation
Best for: Complete weatherproofing + new installation
Why We Install James HardieĀ® Fiber Cement Siding
Not all siding performs the same, especially in the Pacific Northwest. James Hardie fiber cement siding is engineered specifically for moisture-heavy and seasonal climates, built to resist warping, cracking, rotting, and swelling.
Engineered for Northwest Weather
Designed to handle rain, humidity, and temperature shifts without losing structural integrity.
Long-Lasting Color Technology
Factory-applied finishes resist fading and maintain their look for years with minimal maintenance.
Fire-Resistant Material
Fiber cement wonāt ignite when exposed to direct flame, offering an added layer of protection.
Low Maintenance, High Durability
No frequent repainting, no rotting boards, and no constant upkeep.
More than 10 million homes nationwide feature James HardieĀ® products, trusted for performance, protection, and long-term value.
Built on a Complete Weather Protection System
Siding is only as strong as the system beneath it. Every Gorilla Works siding project includes full moisture management, not just surface installation, designed specifically for Pacific Northwest conditions.
TyvekĀ® WRB & WeatherSmart Protection
We install high-performance house wrap systems, including Tyvek WRB and WeatherSmart barriers, to create a protective layer between your homeās structure and exterior siding. This helps:
- Prevent moisture intrusion
- Improve air sealing
- Reduce long-term structural damage risk
- Support long-term siding performance
Custom In-House Flashing Fabrication
Unlike most contractors, Gorilla Works has an in-house flashing shop. We fabricate custom flashings for every project, ensuring precise fit and faster turnaround times.
- Cleaner integration around windows and doors
- Proper water redirection
- Reduced installation delays
- Lower overall project costs
Installed Like a Commercial Project
Our installation methods reflect the same standards used on commercial buildings, because moisture control, flashing, and detail work determine how well your siding performs over time. We donāt cut corners on what you canāt see.
Get a Free QuoteWhy Homeowners Choose Gorilla Works for Siding Installation
Installing siding isnāt just about attaching boards. Itās about protecting your home properly for decades. Homeowners across Portland and Vancouver trust Gorilla Works for precision, durability, and professional standards.
Commercial-Quality
Our crews apply the same installation standards used on large commercial projects, ensuring structural integrity, alignment, and moisture protection are done correctly the first time.
Precision in Every Detail
From layout planning to trim alignment and flashing integration, we focus on clean lines and tight tolerances that elevate both performance and appearance.
Full-System Approach
We donāt treat siding as a surface upgrade. Every project includes weather barriers, custom flashing, and moisture control to protect whatās underneath.
Honest Guidance & Clear Pricing
We provide straightforward estimates and help you understand your options without upselling or pressure tactics.
Long-Term Durability
We install premium fiber cement siding systems built to resist moisture, cracking, warping, and long-term weather exposure.
Limited Lifetime Warranty
All qualifying siding installations are backed by a Limited Lifetime Warranty, giving you confidence in both materials and workmanship.
Commercial-Level Experience Brought to Residential Homes
Gorilla Works isnāt just another siding contractor. Through our sister company, Exteriors Design, our teams have completed large-scale commercial siding installations on skyscrapers and mid-rise buildings across Portland, Seattle, and throughout California.
Commercial projects demand strict standards for moisture control, structural detailing, flashing precision, and long-term performance. The same discipline and technical expertise are brought to every residential siding project we complete.
- Large-Scale Commercial Projects
- Advanced Moisture & Structural Detailing
- Elevated Quality Standards
A Structured, Professional Siding Installation Process
Siding installation is a layered system, not just surface work. Our process ensures every step is handled with precision, from preparation to final detailing.
Consultation & Inspection
We begin with a detailed consultation and exterior inspection, evaluating existing siding, structural conditions, and moisture risk areas before planning your project.
Preparation & Weatherproofing
We prepare the exterior by installing house wrap systems such as Tyvek WRB or WeatherSmart barriers. Custom flashings are fabricated in-house for proper water management.
Precision Siding Installation
James HardieĀ® fiber cement siding is installed using proper fastening patterns, spacing, and alignment to meet manufacturer and commercial-grade standards.
Final Walkthrough
We complete all trim detailing, sealing, and finishing touches, followed by a final quality check to ensure proper integration and clean architectural lines.
Ready to Upgrade Your Homeās Siding the Right Way?
Whether youāre replacing aging materials or installing brand-new fiber cement siding, our team ensures every layer, from weatherproofing to final trim, is installed with precision and long-term durability in mind.
Get a Free QuoteSee Our Recent Siding Installation Projects
Here are a few examples of siding projects weāve completed for homeowners across Portland and Vancouver. Every installation is built with proper weatherproofing, custom flashing, and clean architectural finishes.
Proudly Serving Portland, Vancouver & Nearby Communities
Gorilla Works is proudly rooted in the Pacific Northwest. Weāre a local, family-owned team delivering reliable exterior services, from fencing to window and siding installation, for homeowners across Portland, Vancouver, and surrounding communities.
Oregon
- Portland
- Gresham
- Beaverton
- Hillsboro
- Tigard
- Lake Oswego
- Happy Valley
- Milwaukie
- Troutdale
Washington
- Vancouver
- Camas
Area not listed? Give us a call!
Trusted by Families Across Portland & Vancouver
From clean installations to long-lasting quality, homeowners choose Gorilla Works because we do things the right way, with honesty, care, and craftsmanship that speaks for itself. Hereās what people are saying about working with our team.
ā ā ā ā ā Ā Excellent 5.0 Ā Ā·Ā 35 Google reviews
Excellent craftsmanship, professional, fast and very respectful of your property. The crew was awesome.
5 star experience! Highly recommend to anyone looking for a fencing or window contractor. Love their lifetime window warranty program.
David was well informed and got us the best deal on our fence!
Frequently Asked Questions
Have questions about materials, pricing, or installation? Here are the answers homeowners ask us most.
Ready to Upgrade Your Homeās Exterior?
Strong materials. Clean installations. Honest communication. It all starts with a quick quote.
Get a Free Quote