Siding & Window Replacement in Hillsboro, OR

FONZ Construction is Hillsboro’s local siding and window contractor. We’re Washington County-based, permit-familiar, and we’ve worked on Hillsboro homes across the price spectrum from established neighborhoods near downtown to newer construction in South Hillsboro and Orenco Station. We know what Hillsboro homes need. We know what Washington County permitting requires. And we show up and do the work the right way

Siding in Hillsboro

Hillsboro's climate is wet and humid for seven months of the year, and that puts real pressure on home exteriors. We install siding designed for Pacific Northwest conditions.

James Hardie Fiber Cement

Our top recommendation for Hillsboro homes. Moisture resistant, rot-resistant, low-maintenance, and warrantied for 30 years when installed to spec. HardiePlank lap siding is the right aesthetic fit for most Hillsboro housing stock, and HardiePanel vertical siding works beautifully on more contemporary homes.

Vinyl Siding

For homeowners who want a clean, cost-effective exterior upgrade, quality vinyl is a solid choice. We install it properly — no skipped flashing, no blocked drainage, no shortcuts that create problems later.

Cedar Siding

If you want natural wood character, we source quality cedar and install it correctly. We'll be honest with you about the maintenance commitment so you go in with clear expectations.

Window Replacement in Hillsboro

Hillsboro’s combination of cold winters and warm summers makes window performance genuinely impactful. If you have single-pane windows or failed double-pane (the fogged, condensation-between-panes kind), you’re losing significant energy every day and your home is less comfortable than it should be. We replace windows throughout Hillsboro with energy-efficient double-pane units featuring low-E coatings and argon fills. We install them correctly with proper flashing, sill pans, shimming, and sealing so you get the performance the manufacturer promises.

Permits in Hillsboro

Washington County’s building department is one we know well. We pull permits, coordinate
inspections, and handle the process you don’t have to navigate it. Permitted work protects your home’s value at resale and ensures the work is done to code.