# Gorilla Works

> Gorilla Works (also known as Gorilla Works Exteriors) is a family-owned exterior contractor in Portland, Oregon, a family business since 2002. It installs fences, Milgard windows and James Hardie siding for homeowners in the Portland metro area and Southwest Washington. Licensed in Oregon (CCB #198186) and registered in Washington (L&I EXTERDC884PP).

- Phone: (971) 343-4964
- Email: info@gorillaworksexteriors.com
- Address: 19140 NE Portal Way, Portland, OR 97230
- Hours: 8:30 AM to 8:30 PM, 7 days a week
- Service area: Portland, Beaverton, Hillsboro, Gresham, Tigard, Lake Oswego, Oregon City, Tualatin, Milwaukie, Happy Valley, West Linn, Wilsonville, Sherwood and Clackamas in Oregon; Vancouver, Camas, Battle Ground and Ridgefield in Washington
- We also serve Salem, the Oregon coast and Longview, with no extra travel charge.
- Free quotes: https://gorillaworksexteriors.com/contact

## Company

- [Window Installation, Siding & Fencing, Portland](https://gorillaworksexteriors.com/): Milgard window installation and replacement in Portland, plus James Hardie siding and fence installation. Licensed in Oregon, registered in Washington. Free quote.
- [About Gorilla Works | Family-Owned Since 2002](https://gorillaworksexteriors.com/about): Meet the Tishenko family team behind Gorilla Works: licensed in Oregon since 2002, 200+ fences and 100+ window projects a year, 4.9 on Google across 86 reviews.
- [Our Projects in Portland & Vancouver](https://gorillaworksexteriors.com/projects): See recent cedar and privacy fence installations completed across Portland, OR and Vancouver, WA by the Gorilla Works team.
- [Fence, Window & Siding Warranty](https://gorillaworksexteriors.com/warranty): What the Gorilla Works warranty covers: up to limited lifetime on windows, 5-year siding and fence workmanship terms, and the manufacturer product warranties.
- [Fence, Window & Siding Financing Portland](https://gorillaworksexteriors.com/financing): Gorilla Works financing through Service Finance: 12 months same as cash or low monthly plans. All financing is subject to credit approval. Rates, terms and payments may vary based on credit. All financing is subject to credit approval. Rates, terms and payments may vary based on credit.
- [Fence, Siding & Window Tips](https://gorillaworksexteriors.com/blog): Expert advice for Portland and Vancouver homeowners on choosing fence materials, siding, windows, and keeping your home exterior in great shape.
- [Contact Gorilla Works | Free Quote in Portland, OR](https://gorillaworksexteriors.com/contact): Get a free quote for your fence, siding, or window project in Portland or Vancouver WA. Call (971) 343-4964 or send us a message.

## Fencing

- [Portland Fence Installation & Contractors](https://gorillaworksexteriors.com/fencing): Portland fence contractors installing cedar, vinyl, chain-link and steel fencing in Portland, Vancouver WA, Gresham and Camas. Licensed, insured, free quotes.
- [Fence Replacement in Portland, OR | Old Fence Hauled Away](https://gorillaworksexteriors.com/fence-replacement): Fence replacement in Portland and Vancouver WA. We tear out and haul away the old fence, then build cedar, vinyl, chain link, steel or hog wire. Free quote.
- [Fence Company & Installation, Vancouver WA](https://gorillaworksexteriors.com/fence-installation-vancouver-wa): Vancouver and Camas fence company, registered in Washington. We install cedar, vinyl, chain-link and steel fences to Clark County rules. Free quote.
- [Portland Fence Guide: Cost, Materials, Rules](https://gorillaworksexteriors.com/fencing-guide): The Portland and Vancouver fence guide: what fencing costs, which material lasts in the rain, property-line and permit rules, and how to make a fence last.
- [Fence Installation in Beaverton, OR](https://gorillaworksexteriors.com/fence-installation-beaverton-or): Fence installation in Beaverton, OR, built to code 60.50.20 height rules. Grade 1 cedar, vinyl, chain-link and Colorbond steel, steel-post option. Free quote.
- [Fence Installation in Hillsboro, OR](https://gorillaworksexteriors.com/fence-installation-hillsboro-or): Fence installation in Hillsboro, OR with the city fence permit filed for you. Grade 1 cedar, vinyl, chain-link and steel, posts set for wet soil. Free quote.
- [Fence Installation in Tigard, OR](https://gorillaworksexteriors.com/fence-installation-tigard-or): Fence installation in Tigard, OR: up to 8 ft privacy in back, 3 ft in front, per city rules. Cedar, vinyl, chain-link, steel; Bull Mountain slopes. Free quote.
- [Fence Installation in Lake Oswego, OR](https://gorillaworksexteriors.com/fence-installation-lake-oswego-or): Fence installation in Lake Oswego, OR, built to the city's 6 ft / 4 ft street rules, tree code and Mountain Park HOA approval. Cedar, vinyl, steel. Free quote.
- [Fence Installation in Oregon City, OR](https://gorillaworksexteriors.com/fence-installation-oregon-city-or): Fence installation in Oregon City, OR built to code 17.54.100: 3.5 ft front, 6 ft side and back, historic review flagged. Cedar, vinyl, steel. Free quote.
- [Gresham Fence Company & Installation](https://gorillaworksexteriors.com/fence-installation-gresham-or): Gresham fence company with a shop inside city limits. Cedar, steel-post and Colorbond fences for Gresham homes, built to city rules. Free quote.
- [Cedar Wood Fence Installation, Portland OR](https://gorillaworksexteriors.com/wood-fencing): Cedar fence installation in Portland and Vancouver WA. Grade 1 cedar on every fence, stainless fasteners, five styles and a written warranty. Free quotes.
- [Vinyl Fence Installation in Portland, OR](https://gorillaworksexteriors.com/vinyl-fence): Vinyl privacy fences in Portland and Vancouver WA that never need paint or stain and last 20 to 30 years. Posts set in concrete. Free quotes.
- [Chain Link Fence Installation, Portland OR](https://gorillaworksexteriors.com/chain-link): Chain link fence in Portland and Vancouver WA: galvanized, black or green, 9 or 11 gauge, privacy slats, top and bottom rails. Free written quote.
- [Colorbond Steel Fence in Portland, OR](https://gorillaworksexteriors.com/steel-fence): Colorbond steel privacy fences in Portland and Vancouver WA. Factory-baked colour, nothing to stain, built on a cedar kickboard, 10-year materials warranty.
- [Hog Wire Fence Installation in Portland, OR](https://gorillaworksexteriors.com/hog-wire-fence-portland): Hog wire fence installation in Portland and Vancouver WA. Grade 1 cedar frames around welded wire panels, stainless fasteners, and a workmanship warranty.
- [Board on Board Fence Installation in Portland, OR](https://gorillaworksexteriors.com/board-on-board-fence-portland): Board on board fence installation in Portland and Vancouver WA. Two layers of Grade 1 cedar leave no sightline gaps, plus a real workmanship warranty.

## Windows

- [Portland Window Replacement & Contractor](https://gorillaworksexteriors.com/window-installation): Portland window contractor installing Milgard replacement windows across Portland, Vancouver WA, Gresham and Camas. Licensed and insured, free estimates.
- [Home Window Replacement in Vancouver, WA](https://gorillaworksexteriors.com/window-replacement-vancouver-wa): Home window replacement in Vancouver and Camas, WA. Washington-registered Milgard window installers, windows that meet the 0.30 U-factor code. Free quote.
- [Window Replacement in Beaverton, OR](https://gorillaworksexteriors.com/window-replacement-beaverton-or): Window replacement in Beaverton, OR. Milgard vinyl and fiberglass, full-frame installs, City of Beaverton or Washington County permit checked. Free quote.
- [Window Replacement in Hillsboro, OR](https://gorillaworksexteriors.com/window-replacement-hillsboro-or): Window replacement in Hillsboro, OR for 1990s-2000s homes and houses near the airport. Milgard Trinsic vinyl, full-frame tear-out and new trim. Free quote.
- [Milgard Windows in Portland, OR | Installed by Gorilla Works](https://gorillaworksexteriors.com/milgard-windows-portland): Milgard window installer in Portland, OR. Vinyl (V250, V300 Trinsic, V400 Tuscany) and fiberglass (C700) windows, lifetime warranty. Free quote.
- [Vinyl Windows in Portland, OR | Milgard](https://gorillaworksexteriors.com/vinyl-windows-portland): Milgard vinyl windows (V250 Style Line, V300 Trinsic, V400 Tuscany) installed in Portland and Vancouver WA. Low-E glass to code, lifetime warranty, free quote.
- [Fiberglass Windows in Portland, OR](https://gorillaworksexteriors.com/fiberglass-windows-portland): Milgard C700 fiberglass windows installed in Portland and Vancouver WA. Low-E glass to Oregon and Washington code, lifetime warranty, free in-home quote.
- [Casement Windows in Portland, OR](https://gorillaworksexteriors.com/casement-windows-portland): Milgard casement windows installed in Portland and Vancouver WA. Crank-out casements with the tightest seal of any window, Low-E glass to code. Free quote.
- [Sliding Windows in Portland, OR](https://gorillaworksexteriors.com/sliding-windows-portland): Milgard sliding windows installed in Portland and Vancouver WA. Two-panel and three-panel end-vent sliders, Low-E glass to code, lifetime warranty, free quote.
- [Double Hung Windows in Portland, OR](https://gorillaworksexteriors.com/double-hung-windows-portland): Milgard V400 Tuscany double hung windows installed in Portland and Vancouver WA. Tilt-in sashes, Low-E glass, honest restore-vs-replace advice. Free quote.
- [Bay and Bow Windows in Portland, OR](https://gorillaworksexteriors.com/bay-bow-windows-portland): Milgard bay and bow windows installed in Portland and Vancouver WA, with engineered support, an insulated seat and a flashed roof. Free quote.
- [Picture Windows in Portland, OR](https://gorillaworksexteriors.com/picture-windows-portland): Milgard picture windows installed in Portland and Vancouver WA. Fixed windows with the tightest seal of any style, glass that resists stress cracks. Free quote.
- [Awning Windows in Portland, OR](https://gorillaworksexteriors.com/awning-windows-portland): Milgard awning windows installed in Portland and Vancouver WA. Top-hinged, so they can stay open in the rain. Low-E glass, Milgard product warranty, free quote.
- [Window Replacement in Tigard, OR](https://gorillaworksexteriors.com/window-replacement-tigard-or): Window replacement in Tigard, OR, from Bull Mountain to homes along 99W and Hall Blvd. Milgard windows, City of Tigard permit rules checked. Free quote.
- [Window Replacement in Lake Oswego, OR](https://gorillaworksexteriors.com/window-replacement-lake-oswego-or): Window replacement in Lake Oswego, OR. Milgard windows for lake-view and 1970s homes, with landmark and Mountain Park HOA rules checked first. Free quote.
- [Window Replacement in Oregon City, OR](https://gorillaworksexteriors.com/window-replacement-oregon-city-or): Window replacement in Oregon City, OR. Milgard windows, plus straight answers on McLoughlin and Canemah historic window rules. Free written quote.
- [Portland Window Guide: Cost, Types, Install](https://gorillaworksexteriors.com/window-guide): The Portland and Vancouver window replacement guide: cost, vinyl vs fiberglass, double vs triple pane, and full-frame vs insert for older Northwest homes.
- [Window Replacement in Gresham, OR](https://gorillaworksexteriors.com/window-replacement-gresham-or): Window replacement in Gresham, OR, from a shop inside city limits. Milgard vinyl and fiberglass, full-frame installs, Gresham permit rules checked. Free quote.

## Siding

- [Siding Installation & Replacement in Portland, OR](https://gorillaworksexteriors.com/siding-installation): Professional James Hardie and fiber-cement siding installation in Portland and Vancouver WA. Durable, low-maintenance siding built for Northwest weather.
- [Portland Siding Guide: Fiber Cement vs Vinyl](https://gorillaworksexteriors.com/siding-guide): The Portland and Vancouver siding guide: what fails first in a wet climate, fiber cement vs vinyl, signs it is time to replace, and how siding goes on right.
- [Siding Contractor in Vancouver, WA](https://gorillaworksexteriors.com/siding-installation-vancouver-wa): Siding contractor in Vancouver, WA, registered in Washington. James Hardie fiber cement over a full moisture barrier, old siding hauled away. Free written quote.
- [James Hardie Siding: Products, Warranty and HZ5 Explained](https://gorillaworksexteriors.com/james-hardie-siding): James Hardie siding in Portland and Vancouver WA: the HZ5 climate board, the 30-year product and 15-year ColorPlus warranties, and how it is installed right.
- [How Much Does Siding Cost in Portland? (2026)](https://gorillaworksexteriors.com/siding-cost-portland): What siding costs in Portland and Vancouver in 2026: fiber cement and James Hardie price ranges by home size, and what moves your quote. Sourced market data.
- [Siding Contractor in Beaverton, OR](https://gorillaworksexteriors.com/siding-installation-beaverton-or): Siding installation in Beaverton, OR. James Hardie fiber cement over a full moisture barrier, with tear-out and haul-away. Free written quote.
- [Siding Contractor in Hillsboro, OR](https://gorillaworksexteriors.com/siding-installation-hillsboro-or): Siding installation in Hillsboro, OR. James Hardie fiber cement over a full moisture barrier, built for Tualatin Valley freeze-thaw. Free written quote.
- [Siding Contractor in Gresham, OR](https://gorillaworksexteriors.com/siding-installation-gresham-or): Siding installation in Gresham, OR, from a shop inside city limits. James Hardie fiber cement, built for the Gorge east wind. Free written quote.

## Guides

- [Fence Line Landscaping Ideas (PNW Guide)](https://gorillaworksexteriors.com/fence-line-landscaping): How to landscape along a fence so it looks great and the fence still lasts. Four-season planning, sun and water, and the one spacing rule most people
- [How Long Does a Wood Fence Last? Cedar vs Pine, by the Numbers](https://gorillaworksexteriors.com/how-long-does-a-wood-fence-last): A cedar fence lasts 15 to 30 years, up to 40 with regular staining. Pressure-treated pine lasts about 10 to 20. In wet Portland soil the posts usually
- [How to Clean a Wood Fence Without Damaging It](https://gorillaworksexteriors.com/how-to-clean-wood-fence): Wet the fence, apply an oxygen bleach cleaner, scrub, and rinse at low pressure (about 500 to 800 PSI on cedar, 12 inches off). Skip chlorine bleach. Let
- [Chain Link Fence With Wood Posts: Pros, Cons and Lifespan](https://gorillaworksexteriors.com/chain-link-fence-with-wood-posts): Yes, chain link can be hung on wood posts with staples or screw-on brackets. It looks warmer than all-steel, but in wet soil a treated post lasts about 10
- [Fence Ideas: 5 Styles With Real Portland Job Photos](https://gorillaworksexteriors.com/fence-ideas): Fence ideas from real Portland yards: cedar privacy, capped cedar, a darker cedar look, Colorbond steel and hog wire fences, with photos, what each is
- [Kickboard, Rot Board or Mow Strip: Which Your Fence Needs](https://gorillaworksexteriors.com/fence-kickboard-rot-board): What a kickboard and rot board actually do, when a concrete mow strip is worth it, and the build details that keep a cedar fence bottom dry in Portland.
- [Can You Paint a Vinyl Fence? Yes, With 3 Rules](https://gorillaworksexteriors.com/can-you-paint-a-vinyl-fence): Yes, a vinyl fence can be painted with a 100% acrylic exterior paint in the same shade or lighter. But painting usually voids the fence warranty, so check
- [Chain Link Fence Privacy: Slats, Screens and Options](https://gorillaworksexteriors.com/chain-link-fence-privacy): Privacy slats turn a chain link fence into a screen: about 75 percent privacy for standard slats and about 90 to 95 percent for winged and hedge slats.
- [Cedar Fence Styles: 5 Privacy Fence Types Compared](https://gorillaworksexteriors.com/cedar-privacy-fence): The 5 main cedar fence styles: standard vertical, board on board, good neighbor, horizontal and hog wire. See how private each one is, which yard it
- [Fence Gate Ideas: 8 Designs That Hold Up](https://gorillaworksexteriors.com/fence-gate-ideas): Eight fence gate designs that look good and stay square, from matching cedar and board on board to hog wire and double drive gates, plus the bracing,
- [Dog Fence Guide: Height, Material and Digging](https://gorillaworksexteriors.com/dog-fence): A dog fence should be at least 6 feet for most medium and large dogs, with a smooth face and a kickboard or buried wire at the base to stop digging. Here
- [How to Stain a Fence: 7 Steps and the Timing That Matters](https://gorillaworksexteriors.com/how-to-stain-a-fence): Wait 4 to 6 weeks on new cedar, clean and brighten, let it dry 48 hours to under 12 percent moisture, spray and back-brush a thin coat of oil-based
- [Fence Post Spacing and Depth: The Portland Clay Rules](https://gorillaworksexteriors.com/how-far-apart-should-fence-posts-be): 8 feet apart is the standard, but tall, horizontal and windy runs change it, and Portland's wet clay changes the depth. The spacing, depth and concrete
- [Privacy Fence Cost Per Foot (2026): $50 to $85 Installed](https://gorillaworksexteriors.com/privacy-fence-cost-per-foot-portland): A cedar privacy fence in Portland and Vancouver WA runs $50 to $85 per linear foot installed. What moves the number: height, cedar grade, fence style, and
- [Corrugated Metal Fence: Panels, Styles, and What Lasts](https://gorillaworksexteriors.com/corrugated-metal-fence): A corrugated metal fence is steel panels set in a frame. No staining, no rot, and a panel life commonly cited at 40 to 60 years. Styles, panel types, and
- [Automatic Gate Installation: Portland Guide](https://gorillaworksexteriors.com/automatic-gate-installation): Automatic gates in Portland: who may do the electrical work, what the code requires, how swing and slide gates differ, and what a safe install includes.
- [Stain Dry Time Before Rain: Portland Month-by-Month Answer](https://gorillaworksexteriors.com/how-long-does-stain-need-to-dry-before-rain-portland): Most stains need 24 dry hours, Thompson's wants 48 and 50 degrees. The month-by-month Portland staining calendar, and the splash test that says the wood
- [Wood Fence With Metal Posts | Portland Guide](https://gorillaworksexteriors.com/wood-fence-with-metal-posts-portland): A wood fence with metal posts means cedar boards on posts that never rot. How it is built in Portland, what you give up in looks, and when it is worth it.
- [Good Neighbor Fence Styles: Photos From Real Portland Yards](https://gorillaworksexteriors.com/good-neighbor-fence-styles-portland): Both sides look finished, but the styles differ more than people think. Real photos of the good neighbor fences we build around Portland, and how to pick
- [Fence Installation Cost in Portland: 2026 Price Guide](https://gorillaworksexteriors.com/fence-cost-portland): Real 2026 fence prices from our own Portland jobs: chain link $40 to $80 per foot installed, cedar privacy $50 to $85, Colorbond steel $95 to $115. What
- [Types of Fences: Every Style We Build in Portland](https://gorillaworksexteriors.com/types-of-fences-portland): Cedar standard, horizontal, good neighbor and board on board, chain link and steel: what each looks like, who it fits, and how to choose for a Portland
- [Can Skunks Climb Fences? What Actually Keeps Them Out](https://gorillaworksexteriors.com/can-skunks-climb-fences-portland): Striped skunks cannot climb a smooth fence, spotted ones can, and most get into Portland yards UNDER the fence, not over it. What stops them at the fence
- [Horizontal Fence Ideas: Modern Wood Fence Designs (2026)](https://gorillaworksexteriors.com/horizontal-fence-ideas): Horizontal fence ideas that last: modern wood and cedar designs, board spacing, and the mistakes that cause sagging. From a Portland fence contractor.
- [Choosing the Right Fencing Material for Your Home](https://gorillaworksexteriors.com/choosing-the-right-fencing-material-for-your-home): Cedar, vinyl, chain link or steel? How the main fencing materials really compare on privacy, lifespan and upkeep in the Portland and Vancouver climate.
- [Wood Fence vs Chain Link Fence: Which Is Better?](https://gorillaworksexteriors.com/wood-fence-vs-chain-link-fence-which-is-better): Wood fence vs chain link fence: which is better for a Portland yard? A local cedar fence builder compares privacy, looks, durability, and which to choose.
- [Who Owns the Fence? How to Tell Which Side Is Yours](https://gorillaworksexteriors.com/who-owns-the-fence): Who owns the fence comes down to whose side of the property line it sits on and who paid for it. How to tell which side is yours, plus Oregon
- [Fence on the Property Line? Oregon and WA Rules + Who Owns It](https://gorillaworksexteriors.com/fence-property-line-portland): You can usually build right on the line in Oregon and Washington. The city height and permit rules that trip people up, and how fence ownership really
- [Sliding Glass Door Replacement in Portland, OR](https://gorillaworksexteriors.com/sliding-glass-door-replacement-portland): Sliding glass door replacement in Portland: when to replace, Milgard Tuscany, Trinsic and Ultra options, safety glass rules, permits, warranty and how the
- [Do You Need a Permit to Replace Windows in Portland?](https://gorillaworksexteriors.com/window-replacement-permit-portland): We checked the official rules in 19 Portland-area and Clark County jurisdictions. Same-size windows usually need no permit in Oregon. Here is where that
- [Window Rebates Portland and Vancouver 2026: 29 Programs](https://gorillaworksexteriors.com/window-rebates-portland-vancouver): We checked 29 federal, state, utility and county programs. In 2026, none pays a typical Portland homeowner for new windows. In Clark County, two still do.
- [How to Choose a Window Replacement Company in Portland](https://gorillaworksexteriors.com/how-to-choose-a-window-replacement-company-portland): We read 313 one- and two-star Google reviews of 30 Portland-area window companies. Here is what went wrong most, and the questions that catch it before
- [Full Frame vs Insert Windows in Portland: How to Tell](https://gorillaworksexteriors.com/full-frame-vs-insert-windows-portland): Full frame or insert window replacement in Portland? A local installer shows a simple DIY test to tell which your home needs, with real job numbers.
- [Best Windows for the Pacific Northwest (Portland Installer)](https://gorillaworksexteriors.com/best-windows-pacific-northwest-portland): The honest answer on the best windows for our wet Oregon climate. Why triple pane is usually oversold here, and what actually matters for a Portland home.
- [Double Pane vs Triple Pane Windows: Worth It in Portland?](https://gorillaworksexteriors.com/double-pane-vs-triple-pane-windows-portland): Double pane vs triple pane windows from a Portland Milgard installer. The honest verdict for our mild climate, when triple pane is worth it, and what
- [Single Hung vs Double Hung Windows: Which to Pick (Portland)](https://gorillaworksexteriors.com/single-hung-vs-double-hung-windows-portland): Single hung vs double hung windows from a Portland Milgard installer: sealing, cleaning, kid safety, egress rules, and which goes where.
- [How to Measure for Replacement Windows: 5 Steps](https://gorillaworksexteriors.com/how-to-measure-for-replacement-windows): Measure width jamb to jamb at the top, middle, and bottom, height sill to head at left, center, and right, keep the smallest of each, round down to 1/8
- [Window Replacement Cost Portland (2026): $1,200 to $3,700](https://gorillaworksexteriors.com/window-replacement-cost-portland): Milgard replacement windows run $1,200 to $3,700 per window installed in Portland and Vancouver WA. What moves the price: window type, frame, glass, and
- [Energy Efficient Windows Portland: What Lowers Your Bill](https://gorillaworksexteriors.com/energy-efficient-windows-portland): What actually lowers a Portland power bill: Low-E glass, gas fill, and U-factor, plus what rebates really exist in 2026.
- [Are Fiberglass Windows Worth It? Vinyl vs Fiberglass](https://gorillaworksexteriors.com/vinyl-vs-fiberglass-windows-portland): Fiberglass lasts 30 to 50+ years vs 20 to 40 for vinyl and barely expands. Worth it if you stay long term; vinyl is the better value for most homes.
- [How Long Do Windows Last? By Type, and the Signs Yours Are Done](https://gorillaworksexteriors.com/how-long-do-windows-last-portland): Vinyl, fiberglass and wood windows age very differently in Portland rain, and the seals go first. How long each type really lasts, and the signs yours are

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