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Window Replacement

Window Replacement That Tightens Your Home Against Northwest Weather

Drafts, fogging glass, and failed seals are more than comfort issues. They're costing you money. Left Coast Exteriors installs ProVia windows with precision measurement and in-house installation from start to finish.

ProVia ProVia Authorized Dealer
ProVia Authorized Dealer
Custom Measurement
Energy-Efficient Glass
Licensed & Insured
Lifetime Warranty Options
Know the Warning Signs

Signs Your Windows Need Replacing

  • Drafts around frames even with windows closed: air infiltration around the frame or sash means the weatherstripping has failed or the frame itself has warped. In a Pacific Northwest winter, those drafts translate directly into heating costs.
  • Fogging or condensation between panes: this is a failed seal, not a cleaning problem. Once the argon fill between the panes escapes and moisture gets in, the insulating value of the glass unit is gone. The window looks bad and performs worse.
  • Noticeably higher heating and cooling bills: windows account for a significant share of a home's thermal loss. If your HVAC system is working harder than it used to and nothing else has changed, aging windows with degraded glass coatings or failed seals are a likely culprit.
  • Difficulty operating, sticking, warping, or won't lock properly: wood windows swell and rot in Northwest humidity. Vinyl windows can warp if they were low quality or improperly installed. A window that won't lock securely is a security issue on top of a comfort one.

What Window Replacement Actually Delivers

New windows do more than stop drafts. Modern high-performance windows like ProVia's product lines use multi-chamber frames, warm-edge spacers, Low-E glass coatings, and argon fill to dramatically reduce thermal transfer in both directions, keeping heat in during Clark County winters and keeping it out during the warm, dry summers that hit the Portland Metro. The difference is measurable on your utility bill within the first year.

Comfort improvements go beyond temperature. Quality windows significantly reduce the transmission of outside noise, a meaningful benefit for homes near SR-14, I-205, or busy arterials in Vancouver and Portland. The low-frequency hum of traffic, barking dogs, and neighborhood noise that bleeds through aging single-pane or failed-seal double-pane glass drops substantially with modern laminated insulating glass units.

From a long-term value standpoint, window replacement is one of the exterior projects with the strongest return. Updated, energy-efficient windows are a selling point with buyers, and homes with documented ProVia installations with transferable warranties carry that credibility through a sale. For homeowners who plan to stay, the combination of lower utility costs, better daily comfort, and reduced maintenance over a 20–30 year window lifespan makes the math compelling.

ProVia replacement windows installed in a Clark County home by Left Coast Exteriors
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No obligation. Usually within 1 business day.
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360-605-0250
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Licensed & Insured in WA & OR
Manufacturer-Certified Installer
Itemized Written Estimates
Local Crews, No Subcontractors
What window replacement delivers — energy savings, noise reduction, and home value infographic
Making the Right Call

Repair or Replace? Here's the Honest Answer.

Not every window problem requires a full replacement. We'll tell you which option actually makes sense for your home.

When Repair Makes Sense

Window Repair

  • Failed seal on one or two units (fogged glass between panes)
  • Broken hardware: latch, operator, or balance
  • Minor frame rot limited to the sill or stool on an otherwise sound unit
  • Windows are less than 10–12 years old and thermally intact
  • Issue is cosmetic rather than performance-related
When Replacement Is the Right Move

Full Window Replacement

  • Multiple units failing, seal failures, fogging, or drafts on more than 3–4 windows
  • Single-pane glass: no amount of repair improves thermal performance
  • Windows are 20+ years old and heating bills reflect it
  • Frame rot has spread beyond surface level into the rough opening
  • You're planning to sell within 5–7 years, window upgrades have strong ROI
Products We Install

ProVia Windows: Precision-Built for Pacific Northwest Homes

ProVia manufactures every window to order. There's no warehouse full of standard-size units. Each window is built to the exact measurements we take from your home. That's how you get a proper fit, a proper seal, and performance that lasts.

Fiberglass Composite Frames

ProVia Aspect Series

The Aspect Series uses fiberglass composite frames that are eight times stronger than vinyl and won't warp, swell, or contract with Pacific Northwest humidity and temperature swings. Fiberglass also insulates better than aluminum and holds paint indefinitely, unlike wood, there's no refinishing cycle. If you have wood windows that are failing and want a like-for-like aesthetic without the maintenance, the Aspect is the right answer. Available in a wide range of colors and configurations including single-hung, double-hung, casement, and picture windows.

Most Popular · Premium Vinyl

ProVia Aeris Series

The Aeris Series is ProVia's premium vinyl line with reinforced corner construction and a multi-chamber frame profile engineered for strong wind-load performance. It's particularly well-suited for homes in the Gorge corridor east of Vancouver where wind events are a regular occurrence. The Aeris includes triple-point locking hardware, fusion-welded corners, and is available with a range of Low-E glass packages. It delivers outstanding thermal performance at a price point that works for full-house window replacements without compromise.

Entry Door Upgrade Option

ProVia Heritage Entry Doors

For homeowners who are already going through the disruption of window replacement, it's often the right time to evaluate the entry door as well. ProVia's Heritage Entry Door system delivers an exceptionally tight weatherseal. We regularly see clients move from a drafty old door to a Heritage unit and immediately notice the difference in air infiltration and street noise. Available in steel and fiberglass with a wide range of glass insert configurations. If your entry door is original to the home, combining it with a window replacement project keeps the job site efficient and the timing consolidated.

ProVia Design Center

Know What You Want Before the Estimate Visit

ProVia's Design Center lets you explore window styles, frame colors, and glass packages before we arrive. Homeowners who come into the estimate with preferences already formed get a faster, more accurate quote, because we're confirming a direction rather than building from scratch.

1
Explore ProVia Window Styles

Browse ProVia's window lineup: casement, double-hung, picture, slider, and specialty shapes. Compare frame materials, glass packages, and exterior colors. The Design Center gives you a clearer sense of the difference between product lines than any spec sheet or catalog can.

2
Note Your Preferences

Save or screenshot the styles and configurations that resonate with you. No account required. Just keep track of the product series, frame material, and color options you're drawn to. Bring that shortlist to the estimate, or email it to us in advance.

3
We Measure, Quote, and Order

During the estimate visit we take precision measurements of every opening, confirm which configurations fit your home, and provide a line-item written quote. Once you approve it, we place the custom order directly with ProVia. Every window built to your exact specifications, installed to manufacturer spec so your warranty is fully intact.

Opens in a new tab. No account required to explore. Left Coast Exteriors orders and installs directly from ProVia as an Authorized Dealer.

Why Left Coast Exteriors

Why Southwest Washington Homeowners Choose Us for Windows

ProVia Authorized Dealer

As a ProVia Authorized Dealer, we have access to their full Endure and Aeris window lines with Energy Star certification. Authorization means we're trained to install to manufacturer spec, which is what keeps your warranty valid and your thermal performance numbers accurate.

We Address Dry Rot, Not Just Glass

Pacific Northwest homes frequently have moisture damage around window frames that most contractors ignore or quote separately to inflate the total. We assess every rough opening before installation and address structural issues as part of the project, not as surprise add-ons.

Itemized Estimates, No Bait-and-Switch

Every window replacement quote lists each unit, its size, and its price, along with labor, any framing work, and disposal. You see the full scope before signing. What we quote is what you pay. No mystery upcharges at invoice time.

How It Works

Our Window Replacement Process

Custom windows take time to build right. Here's how we take you from your first call to finished installation with no surprises along the way.

01

Free Consultation & Measurement

We come to your home, review all the windows you're looking to replace, and take precision measurements of every opening. We discuss product options and help you identify the right series and glass package for your home's orientation, exposure, and energy goals.

02

Window Selection & Custom Order

You receive a detailed written estimate. Once you approve it, we place the order directly with ProVia. Because every window is built to your exact specifications, lead time is typically 4–6 weeks from order date. We'll give you the specific timeline when we place your order.

03

Scheduled Installation Date

When your windows arrive, we schedule your installation. Most whole-house window replacements are completed in one to two days. We confirm the date in advance and show up when we say we will.

04

Professional Installation

Our in-house crew handles complete removal of the old windows, any needed framing adjustments, and full installation of the new units including flashing, insulation, and interior and exterior trim work. We don't use subcontractors. The same team that sold you the job installs it.

05

Trim, Seal & Final Walkthrough

Every window gets a complete interior and exterior seal, casing, and trim finish before we're done. We walk through each window with you to demonstrate operation and confirm you're satisfied with the installation. No window is marked complete until you've inspected it.

Common Questions

Window Replacement FAQs

What Homeowners Say

Real Results from Window Replacement Projects

Google Review

"We replaced all 14 windows in our Vancouver home. Original aluminum windows from 1987. The difference was immediate. The house is noticeably quieter and we've already seen lower heating bills two months in. Left Coast's crew finished the whole job in a day and a half. Everything was cleaned up and they walked us through every window before they left. The ProVia Aeris units look exactly right on our home."

Christine & Paul M.
Vancouver, WA Full-House Window Replacement
Google Review

"I live on a fairly busy street in Lake Oswego and the road noise through our old windows was constant. After Left Coast installed ProVia Aspect fiberglass windows throughout the main floor, the change in sound reduction was remarkable. It genuinely feels like a different house. The crew was professional, the installation quality is excellent, and the project came in exactly at the estimate. No surprises."

Robert A.
Lake Oswego, OR Window Replacement
Google Review

"We had significant frame rot on four of our windows and were worried it would be a much bigger job than we hoped. Left Coast assessed each one during the estimate, explained exactly which needed full-frame replacement and which could use inserts, and gave us a clear breakdown. They handled the framing repairs as part of the job. Everything was done right and the ProVia units they recommended fit the character of our older Craftsman perfectly."

Financing Available

Upgrade Your Windows Now. Pay Over Time.

Energy-efficient windows pay for themselves in lower heating and cooling bills. We offer flexible financing so you can start capturing those savings immediately instead of waiting to save up the full project cost.

0% Intro APR Options
$0 Down for Qualified Buyers
12–84 Month Terms
Ask About Financing

Many homeowners offset monthly payments with energy savings within the first year.

Financing offered through third-party lenders. Subject to credit approval. Ask your project consultant for current terms and available programs.

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Other Services

Window Replacement Across Clark County & Portland Metro

We serve homeowners throughout Southwest Washington and the greater Portland area. View full service area →

Vancouver, WA Camas, WA Battle Ground, WA Washougal, WA Ridgefield, WA Salmon Creek, WA Hazel Dell, WA Portland, OR Beaverton, OR Lake Oswego, OR Tigard, OR Happy Valley, OR

Ready for Windows That Actually Keep the Pacific Northwest Outside?

Free estimate. Itemized quote. ProVia products with the full manufacturer warranty. Same-business-day response for most Clark County homeowners.