Window Installation & Replacement in Port Orchard, Olympia & Aberdeen, WA
Professional Window Installation & Replacement Contractors Serving Port Orchard, Olympia, Aberdeen & Western Washington
Your windows do more than let in light. They insulate your home, protect against the elements, and play a significant role in how your home looks and feels from the inside out. At A-1 Roofing Inc., we bring over 50 years of experience to every window installation and replacement project across Western Washington. Our team handles every detail from precise measurement to final seal, so your new windows perform beautifully for years to come.
No Subcontractors. Ever.
At A-1 Roofing Inc., every window installation is completed by our own trained team — not hired-out labor.
That means consistent workmanship, clear accountability, and a finished product you can trust.
When we leave your home, your windows will be professionally measured, fitted, caulked, and sealed to manufacturer specifications.
What Are Replacement Windows?
Replacement windows are purpose-built to fit into your home’s existing window openings without requiring structural changes to surrounding walls or framing. Unlike new construction windows, replacement windows are installed directly into the existing frame, making them a practical, efficient choice for homeowners looking to upgrade without the disruption of a full renovation.
Modern window replacements have advanced considerably from the single-pane options found in older homes. Today’s products are engineered with double or triple-pane glass, low-emissivity (low-E) coatings, and insulated frames that dramatically reduce heat transfer and drafts. For homeowners in Western Washington’s wet, mild climate, these upgrades translate directly into improved comfort and lower energy bills year-round.
At A-1 Roofing Inc., we never subcontract our window work. Every installation is completed by our own trained crew — from measurement to final caulk and seal.
Benefits of New Windows
Upgrading your windows is one of the most impactful home improvements you can make.
- Lower Energy Bills
- Improved Comfort
- Noise Reduction
- Enhanced Curb Appeal
- Increased Home Value
- Reduced Maintenance
- Better Security
Double-Hung Windows
The most popular window style in American homes, double-hung windows feature two operable sashes that slide vertically. They’re versatile, easy to clean, and work well in virtually any room of the house.
Casement Windows
Casement windows open outward for maximum ventilation. They are hinged on one side and operated by a small crank. They create a tight seal when closed, making them one of the most energy-efficient window styles available.
Sliding Windows
Sliding windows move horizontally along a track and are an excellent choice for rooms where outward-opening windows aren’t practical, such as over a patio or deck. They’re easy to use and offer a clean, contemporary look.
Bay & Bow Windows
Multi-window units that project outward from the home’s exterior, bay and bow windows add architectural interest, natural light, and a sense of space to living areas and dining rooms. They’re among the most impactful upgrades available for a home’s interior and exterior appearance.
Skylights
Skylights bring natural light into spaces that standard windows can’t reach, from hallways and bathrooms to vaulted living rooms. We install and replace skylights from trusted manufacturers, including Western Skylights and VELUX — two of the industry’s most respected names.
Picture Windows
Large, fixed-pane picture windows are designed to frame a view and flood a room with light. They don’t open, which makes them extremely energy-efficient. Ideal for living spaces with scenic outdoor views.
Our Window Installation Services
A-1 Roofing Inc. handles the full scope of window work for Western Washington homeowners, from single-window replacements to whole-home installations.
New Window Installations
Whether you’re building new or adding windows to an existing space, our team manages the entire process from measurement and product selection to installation and finishing. We work with you to choose the right window style and material for each room, taking into account energy efficiency goals, ventilation needs, and your home’s architectural design.
Window Replacements
If your existing windows are drafty, damaged, difficult to operate, or simply outdated, a replacement can make an immediate difference in your home’s comfort and efficiency. Our team removes your old windows, prepares the opening, and installs your new units with precision, leaving your home cleaner than we found it, with every window properly sealed and finished.
Skylight Installation & Replacement
Skylights add natural light and visual openness to spaces that can’t be served by standard windows. We install and replace skylights using products from Western Skylights and VELUX, two of the most trusted names in the industry. Whether you’re replacing a leaking unit or adding a skylight to a new space, our team handles every aspect of the job. Skylights that have failed or are improperly sealed are among the leading causes of winter water leaks in Western Washington homes.
Free In-Home Window Estimate — No Obligation
Not sure what your windows need or what it might cost? Our team will come to you, assess your windows, walk you through your options, and provide a clear, itemized estimate before any work begins. No pressure, no surprises.
Contact A-1 Roofing Inc. today to schedule your free window inspection.
Signs It’s Time to Replace Your Windows
Not sure if your windows need replacing? Here are the most common indicators that it’s time to make the upgrade:
- Drafts or air leaks around your window, even when closed
- Condensation or fogging between panes is a sign that the seal has failed
- Difficulty opening, closing, or locking windows
- Visible damage, such as cracked glass, rotting frames, or warped sashes
- Rising energy bills without another clear explanation
- Excessive outside noise penetrating through closed windows
- Windows that are single-pane and more than 15–20 years old
If any of these apply to your home, a free inspection with our team is the best next step. If you’re also noticing issues with your roof, our guide on what to do when you have a leaky roof covers the immediate steps you should take before help arrives.
Why Choose A-1 Roofing For Your Window Installation?
Western Washington homeowners have trusted A-1 Roofing Inc. with their homes for over 50 years and our window installation services carry the same standard of quality and care as every other service we provide.
Over 50 Years in Business ~ Locally Owned & Operated ~ No Subcontractors
Trusted Window Manufacturers ~ Financing Available ~ Free Inspections
Average Cost of Window Installation in Western Washington
- Standard Windows (Double-Hung, Sliding, Casement) – Most homeowners in Western Washington can expect to pay between $600–$1,200 per window installed, for standard vinyl or fiberglass options. A typical whole-home project (10–15 windows) generally ranges from $8,000–$18,000, depending on scope and product selection.
- Bay & Bow Windows – These larger, more complex units typically run $2,500–$5,000+ per unit installed, reflecting the added materials and labor involved.
- Skylights – Skylight installation and replacement costs generally range from $1,500–$3,500 depending on the size, product, and complexity of the roof penetration.
These figures represent broad estimated market ranges. Your actual cost will depend on your specific home, the products selected, and the scope of the project. The best way to get an accurate number is a free in-home assessment from our team.
Window Installation FAQ
Does A-1 Roofing offer financing for window projects?
Yes. We've partnered with Twin Star Credit Union to offer financing options for qualifying customers. Contact us to learn more.
Do you replace single windows or do you require a whole-home project?
We handle both. Whether you need one window replaced or a complete whole-home installation, our team is equipped to take on projects of any size.
What window brands do you work with?
We work with trusted manufacturers, including Western Skylights and VELUX, for skylight products. We'll walk you through available product options during your free inspection.
How long does window installation take?
Most standard replacement projects can be completed in a single day. Larger, whole-home projects or more complex installations like bay windows or skylights may take longer. We'll provide a clear timeline during your consultation.
What types of warranties do you offer for your replacement windows?
We stand behind the quality of our replacement windows with comprehensive warranties that cover both the product and installation. Our warranties typically include coverage for defects in materials and workmanship, ensuring peace of mind for our customers.
What types of windows do you install?
We install double-hung, casement, sliding, bay and bow, picture windows, and skylights. We work with a range of frame materials, including vinyl and fiberglass to suit different budgets and performance needs.
Over 50 Years of Windows Installed Right
Window installation looks simple — until it isn’t.
An improperly installed window leaks air, lets in moisture, and can void your product warranty.
At A-1 Roofing Inc., we’ve spent over 50 years perfecting the details that make window installations last: precise measurement, proper flashing, correct sealing, and clean finishing.
That’s the difference experience makes.
Window Installation Services Across Western Washington
At A-1 Roofing Inc., we’re proud to serve the communities that have trusted us for over five decades. From the neighborhoods of Port Orchard and the heart of Olympia to the coastal homes of Aberdeen, our window installation teams are active throughout Western Washington.
We believe every home in our region deserves windows that are energy-efficient, properly installed, and built to last. When you work with A-1 Roofing Inc., you’re working with a team that takes that responsibility seriously. We show up prepared, communicate throughout the process, and don’t consider a job done until your windows are performing exactly as they should.
If you’re in Port Orchard, Olympia, Aberdeen, or anywhere across Western Washington, contact us today to schedule your free inspection and get started.
Olympia • Port Orchard • Aberdeen
Serving Western Washington Since 1967
Locally Owned & Operated
Ready to Upgrade Your Windows? Contact A-1 Roofing Inc. Today.
New windows make a real difference in how your home feels, how it looks, and what you pay to heat and cool it every month. Whether you’re replacing one drafty window or upgrading every window in the house, A-1 Roofing Inc. has the experience, the products, and the team to get it done right.
With over 50 years of service across Port Orchard, Olympia, Aberdeen, and Western Washington, we’re the trusted choice for homeowners who want quality workmanship and guaranteed results.
Contact us today to schedule your free, no-obligation window inspection — and take the first step toward a more comfortable, energy-efficient home. Get in touch with our team to get started.