Best Window Replacement in Sammamish, WA
At J1 Construction, Inc. we specialize in professional window replacement services designed to improve your home’s energy efficiency, style, and value. Catering to King County, we bring extensive experience, premium materials, and expert craftsmanship to every project. We are committed to delivering King County homeowners with durable, energy-efficient windows that enhance comfort and curb appeal.




Request a free quote
Start Your Quote Now
Complete Range of Window Replacement Options in Sammamish, WA
JJ1 Construction offers a complete array of window replacement services, designed to suit the specific requirements of your home. Our services include: Window Replacement: Replace damaged windows with contemporary, energy-efficient options for greater comfort and energy savings. Custom Window Installation: Choose from a range of window styles to fit your home’s architecture, including casement, double-hung, picture, and other styles. Energy-Conserving Upgrades: Our sustainable windows help lower energy waste, improve insulation, and promote energy efficiency. Window Maintenance and Repair: In addition to replacement, we provide repair services and maintenance to extend the life of your existing windows. Our team is here to guide you in choosing the best options for your home, ensuring practicality and aesthetic appeal. for 7 seconds
J1 Construction provides an extensive range of window replacement services, customized to suit the unique requirements of your home.
We offer the following services:
Full Window Replacement: Upgrade old or damaged windows with contemporary, energy-saving alternatives to enhance comfort and reduce energy costs.
Custom Window Installation: Choose from a variety of window styles to match your home’s architecture, including casement, double-hung, and picture windows.
Energy-Efficient Upgrades: Our energy-efficient windows help reduce heat loss, improve insulation, and contribute to a more sustainable home.
Window Repairs and Maintenance: In addition to replacement, we provide window repairs and maintenance aimed at prolonging the lifespan of your current windows.
We’re dedicated to assisting you in picking the perfect choices for your home, balancing functionality and aesthetic appeal.
Choose From a Wide Variety of Window Styles and Materials for Your Sammamish, WA Home
Our Choose From a Wide Variety of Window Styles and Materials Our assortment of top-notch windows allows you to find the perfect match for your home’s style and performance needs. We offer: **Vinyl Windows:** Budget-friendly and maintenance-free, vinyl windows are strong and come in a variety of colors. **Fiberglass Windows:** Known for their strength and energy efficiency, fiberglass windows offer long-lasting performance. **Wood Windows:** For a traditional look, wood windows add warmth and charm while offering natural insulation. **Aluminum Windows:** Lightweight and sleek, aluminum windows fit beautifully with modern home designs. **Energy-Efficient Glass Options:** Select from double-pane or triple-pane glass to enhance insulation and cut energy costs. Our window options are designed to complement your home and boost energy efficiency, safety, and visual appeal. for 6 seconds
Discover a Broad Selection of Window Styles and Materials
Our selection of high-quality windows allows you to find the perfect match for your home’s style and performance needs. We offer:
Vinyl Windows: Low-maintenance and cost-effective, vinyl windows are durable and available in various colors.
Fiberglass Windows: Known for their strength and energy efficiency, fiberglass windows offer long-lasting performance.
Wood Windows: With a traditional appeal, wood windows enhance charm and provide the benefits of natural insulation.
Aluminum Windows: Featuring a sleek, lightweight design, aluminum windows are ideal for modern architectural trends.
Energy-Efficient Glass Options: Choose double-pane or triple-pane glass to improve insulation and reduce energy costs.
Our range of windows is crafted to suit any aesthetic while improving your home’s energy performance, safety, and look.
Dedicated to Homes King County
J1 Construction is proud to serve King County. We understand the specific climate challenges of King, Pierce, Snohomish, Kitsap, Thurston, and Mason counties, and we offer window replacement solutions designed to meet these needs. With our local expertise, you can trust us to deliver high-quality service and long-lasting results that protect and enhance your home.
Our Step-by-Step Process for Quality and Satisfaction
Our window replacement process is built around transparency, quality, and customer satisfaction:
- Free Consultation: We assess your current windows, discuss your goals, and recommend the best solutions for your home.
- Detailed Estimate: You’ll receive a clear, detailed estimate, so you know exactly what to expect from start to finish.
- Professional Installation: Our skilled technicians complete the installation with precision, ensuring a secure and seamless fit.
- Final Inspection and Clean-Up: We conduct a thorough inspection and leave your home clean and beautiful with new, high-performance windows.
With J1 Construction, you can feel confident that your window replacement project is in experienced hands from consultation to completion.
Enhance Comfort, Energy Efficiency, and Curb Appeal
Replacing your windows offers numerous benefits, including:
- Energy Savings: Energy-efficient windows help reduce heating and cooling costs, making your home more sustainable.
- Increased Comfort: New windows provide better insulation, helping maintain a consistent temperature and reducing drafts.
- Improved Curb Appeal: Fresh, modern windows enhance your home’s appearance and increase property value.
- Noise Reduction: Our high-quality windows help minimize outside noise, creating a quieter indoor environment.
- Enhanced Security: Modern windows are built with advanced locking mechanisms, improving your home’s security.


Some of the Areas We Serve

Things to See and Do in King County
Explore our full range of home improvement services, including siding, window installation, and HVAC repair and replacement.
Roof Replacement
Offering reliable and durable roof replacement services across the Puget Sound area, we ensure homes stay protected in all weather conditions.
Learn moreWindow Installation
Expert window installation in the Puget Sound area, enhancing energy efficiency, security, and style for every home.
Learn moreSiding and Cladding Installation
Expert siding and cladding installation in Puget Sound, enhancing curb appeal and lasting protection
Learn moreRoof Repair
Reliable roof repair services in Puget Sound, expertly restoring lasting protection, durability, energy efficiency, and peace of mind to your home’s structure.
Learn moreHVAC Repair and Replacement
Trusted HVAC repair and replacement services in Puget Sound, ensuring comfort, efficiency, and reliability all year-round.
Learn moreJames Hardie Installation
J1 Construction provides expert James Hardie siding installation, enhancing homes in Puget Sound with durable, weather-resistant, and beautifully crafted exteriors.
Learn more