Siding Repair & Installation Services
Top-Rated Siding Contractor in Beaverton
Don’t juggle multiple contractors. Sister Siding is your trusted partner for all your exterior needs. We offer a seamless experience from consultation to installation for siding, windows, doors, and roofing in Beaverton, OR.
Complete Exterior Services for Beaverton Homes & Businesses
Siding Challenges Across Beaverton’s Neighborhoods & Valley Climate
Beaverton covers everything from 1960s ranches near Lombard Avenue to three-story builds on Cooper Mountain. Between nine months of valley drizzle and heavy neighborhood tree canopies, walls on shaded elevations rarely dry out. How your exterior holds up comes down to your home’s construction era, surrounding shade, and how well the wall envelope vents trapped water.
Typical Home Value: $520,000
Why We’re Beaverton’s Top Choice
for Siding Services
Licensed & Insured
You can relax knowing your project is in the hands of qualified and accountable professionals. Our crew will meet all safety regulations to protect your investment.
Honest Assessments
We understand that home improvement projects are a big decision. That’s why we offer honest assessments and upfront pricing. We’ll work with you to identify the best solutions for your needs and budget, without any pressure.
Warranties
Sister Siding offers industry-leading warranties on materials and installation, ensuring your investment is protected for years to come. Ask our team for more information!
What It Takes to Side & Protect a Home in Beaverton
Beaverton’s wet valley floor, dense tree canopies, and windy hills put constant moisture pressure on exterior walls. Stopping leaks here takes neighborhood-specific fixes, proper wall ventilation, and heavy-duty metal flashings where original builders cut corners.
Lingering Moisture & Trapped Dampness Along Fanno Creek & Greenway
Homes bordering Fanno Creek, Greenway Park, and Denney Whitford sit in low-lying fog zones under heavy tree shade. Exterior walls stay wet for days, trapping water behind siding nailed flat against old paper and rotting the plywood sheathing underneath.
The Fix: We strip failing siding to the studs, replace rotted sheathing, and add a 3/8-inch rainscreen gap behind fiber cement siding. This air gap lets moisture drain straight down and allows damp air to vent out before reaching your framing.
Wind-Driven Rain & Missing Kickouts on Cooper Mountain & Murrayhill
Homes on the slopes of Cooper Mountain face sideways, wind-driven winter storms. In Murrayhill, steep 1980s and 1990s rooflines channel heavy runoff directly into vertical walls because original tract builders routinely skipped metal kickout flashings.
The Fix: We install custom-bent metal kickout flashings at every roof-wall intersection to divert runoff into gutters. Around windows, we install rigid metal sill pans and butyl tape to stop high-pressure wind from forcing rain past the trim.
Ground Clearance Rot in Highland, Central Beaverton & Vose
Older ranches and split-levels in Highland, Vose, and Central Beaverton often have cedar or LP composite siding buried under decades of built-up bark dust and flowerbeds. Wet soil wicks water into bottom boards, rotting the underlying rim joists and sill plates.
The Fix: We cut out decayed framing, sister in new treated lumber, and re-establish a six-inch clearance between your siding and the soil. We then install rot-proof fiber cement capped with galvanized metal Z-flashing.
Our 4-Step Installation Process
1. Inspection & Quote
We measure your exterior, test suspect spots with moisture meters, check your roof-to-wall flashings, and give you a written estimate with no hidden costs.
2. Tear-Off & Repair
We pull off the old cladding down to the plywood. If we find soft framing, rotted corner posts, or insect damage, we document it with photos, show you the issue, and rebuild the damaged framing.
3. Moisture Barriers
We wrap the exterior in breathable weather barrier, install metal flashing pans under window sills, and attach rainscreen strips to create a dedicated drainage path.
4. Installation & Cleanup
We nail on your new siding using hot-dipped galvanized fasteners, apply high-grade sealants, sweep your lawn with magnetic rollers to catch every stray nail, and walk the finished job with you.
Why Trust Sister Siding With Your Home?
Sister Siding is committed to an excellent customer experience from start to finish. From the first phone call to the final walk-through, we want our customers to know they are getting a great product and a hassel-free experience working with our team. We understand that trusting your home or business with a contractor is a big decision, and it is our job to make sure you are satisfied, not only when the project is completed, but throughout the entire process. With years of combined experience in the siding industry, a 5-year labor warranty on all our services, and financing options to help you achieve your goals, we are confident we will earn another happy customer when you choose to work with our team.
Our Company Values:
Beaverton Neighborhoods We Serve
Every corner of Beaverton features different architecture, topography, and microclimates.
We tailor our recommendations to the specific conditions of your street.
Murrayhill
Filled with large 1980s and 1990s two-story custom builds featuring high rooflines, dormers, and cedar lap siding. Many original installations are reaching the end of their lifespan. We work directly with the Murrayhill Owners Association to ensure replacement materials match architectural guidelines.
Sexton Mountain
Features a mix of 1990s tri-levels and large two-story suburban homes. Because these properties sit on higher ground, they take the brunt of wind-driven rain pushing up from the south and west, making rainscreen systems and secure flashing critical here.
Central Beaverton
Home to classic 1950s single-story ranches, mid-century homes, and post-war cottages. Siding replacement here often requires updating original uninsulated wall cavities, repairing decayed wood sheathing, and safely managing old lead paint.
Highland
Dominated by 1960s and 1970s daylight ranches and split-levels built into sloped lots. These homes often feature a mix of original cedar lap, vertical T1-11 plywood, and lower-level brick. We frequently replace failing siding along shaded, moss-heavy rear walls facing mature fir trees.
Vose
A working neighborhood of mid-century ranches, duplexes, and 1970s rental properties. Many properties have weathered T1-11 siding that is soft near the foundation line. We install low-maintenance fiber cement lap siding to keep future exterior upkeep minimal.
Progress Ridge & South Beaverton
Features newer, tight-lot subdivisions and three-story craftsmans with narrow side setbacks (sometimes just six feet between buildings). We use specialized staging and compact scaffolding to work safely in tight property lines without damaging neighboring yards.
Beaverton Property Maintenance & Resources
Permitting and Local Jurisdiction
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City of Beaverton: Siding replacement that involves repairing structural wall sheathing requires a permit under the City of Beaverton Building Division. We pull these permits and coordinate building inspections directly.
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Unincorporated Areas: Pockets around Aloha, Bethany, and Cooper Mountain carry Beaverton addresses but fall under the jurisdiction of the Washington County Department of Land Use & Transportation. We confirm your exact tax lot jurisdiction before any work starts.
Working with Beaverton HOAs
Neighborhoods like Murrayhill, 4100, and Sexton Mountain have strict design standards regarding trim profiles, siding exposure width, and exterior paint palettes. We provide the product cut sheets, color samples, and project descriptions you need for your architectural review committee application.
Seasonal Exterior Care Tips
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Clear Tree Branches (Spring): Beaverton yards have dense tree cover. Trim tree branches back at least three feet from your siding to let sunlight hit the wall and stop moss from taking hold.
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Avoid Pressure Washers on Lap Siding: High-pressure streams blow right under the laps, soak the weather barrier, and drive water into your walls. Use a soft garden hose, a car-wash brush, and mild soap instead.
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Clean Fall Gutters Twice (November & December): When maple leaves and pine needles clog your gutters, water spills down the back of your fascia and runs behind the siding. Keep gutters clear and make sure downspouts carry water away from your foundation.
Safe Waste Disposal & Recycling
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Pre-1978 Homes: If your house was built before 1978, the existing siding may carry lead paint. We follow EPA Lead-Safe guidelines to catch paint chips on plastic ground drop cloths and seal old materials safely for transport.
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Disposal: We haul construction debris directly to licensed local transfer sites like the Metro Central Transfer Station, sorting clean scrap lumber and cardboard for recycling instead of sending everything into a landfill.
