Precision Custom Window Treatments for Northern California
Expert measurement and installation of shutters, shades, blinds, and drapery for homes and businesses. Serving Sacramento, Roseville, Walnut Creek, and beyond.
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Expertise Rooted in Three Generations
Custom Window Coverings with Precision and Integrity
Choosing the right window coverings is about more than just style. At SEI Window Coverings, we bring a third-generation legacy to every project, ensuring your custom window treatments are measured to the sixteenth of an inch and installed with the care only a family business can provide. Our mobile showroom brings real material samples and design advice directly to your home or business, so you can see how each product looks in your space and lighting. From wood shutters in Victorian homes near downtown Sacramento to cellular shades for energy savings in Roseville and solar shades for offices in Walnut Creek, we handle every detail from design consultation to precision installation. Our commitment means you work with the same expert from start to finish, eliminating miscommunication and guesswork. Whether you have uniquely shaped windows, intricate tile, or need advanced automation, we provide solutions built to last.
Why Choose SEI for Custom Window Solutions
Accountability, Quality, and Local Service You Can Trust
SEI Window Coverings stands apart from big-box retailers and online outlets by combining technical expertise with direct accountability. Our owner, Trevor Smith, has over 20 years of exclusive industry experience and personally oversees every measurement and installation. We are licensed, bonded, and insured (CSLB #1118434), and proud to be a 2025 Executive Level Dealer for both Graber and Norman, two of the most respected brands in the business. This status allows us to offer direct manufacturer pricing and warranty support you won't find at chain stores. We back every shutter installation with a lifetime warranty, and provide ongoing service for SEI-installed products. Whether you are outfitting a high-rise in downtown San Jose, a dental office in Napa, or your family home in Folsom, you get the security of working with a company deeply invested in the communities of Northern California, supported by a library of 300+ original project photos and verified client reviews.
How Our Custom Window Treatment Process Works
From Consultation to Precision Installation, Every Step Matters
Our process eliminates the headaches and errors common with outsourced installers. It starts with a mobile showroom visit to your location, where you view real samples in your actual lighting. Next, we take meticulous measurements, down to the sixteenth of an inch, to ensure a perfect fit even for tricky window shapes or surfaces like tile and masonry. Once you select your product, we order directly from Graber or Norman, bypassing middlemen to save you time and cost. Installation is always performed by our owner, not a subcontractor, ensuring your project is handled with technical expertise and care. After installation, we provide full warranty support and are available for any service needs on SEI-installed products. We specialize in solutions for energy efficiency, smart home automation, and challenging architectural conditions found throughout Sacramento, the Bay Area, and beyond.
Your Satisfaction and Peace of Mind, Guaranteed
Warrantied Work, Honest Advice, and Long-Term Support
With SEI Window Coverings, your investment is protected. Every shutter installation includes a lifetime warranty on both workmanship and materials. For shades, blinds, and drapery, we provide strong manufacturer warranties through Graber and Norman, plus our own support for any installation-related concerns. We prioritize replacing old or failing window treatments with high-quality, warrantied systems instead of temporary repairs. Our honest approach means you receive clear recommendations without sales pressure, and our office manager, Aurora, ensures smooth scheduling and communication throughout your project. From the first call to final walkthrough, our goal is to deliver a stress-free experience and window coverings you’ll love for years to come, whether you’re in Colusa, Elk Grove, Walnut Creek, or anywhere in our 12-county service area.
Frequently Asked Questions About Custom Window Treatments
Get Answers About Our Process, Products, and Local Service
Get Answers About Our Process, Products, and Local Service
We provide mobile showroom consultations and expert installation throughout Northern California, including Sacramento, Roseville, Walnut Creek, San Jose, Napa, Redding, and dozens of surrounding cities in 12 counties.
How accurate are your measurements?
All window measurements are performed down to the sixteenth of an inch by our owner, ensuring a precision fit even for challenging window shapes or surfaces like tile and masonry.
What brands and materials do you offer?
We are an Executive Level Dealer for Graber and Norman, offering wood, faux wood, composite, vinyl, solar shades, roller shades, drapery, and more. All products are shown in person through our mobile showroom.
Do you repair window coverings installed by others?
We focus on replacing failing or outdated window coverings with our warrantied solutions. Service work is provided primarily for SEI-installed products. We do not perform repairs on third-party installations.
What kind of warranty do you provide?
What kind of warranty do you provide?

Client Experiences Across Northern California













