At JDI Windows, we combine skill, reliability, and care to give every homeowner the best possible experience. More than just window installation, we deliver precision and durability you can count on.
JDI Windows has earned a reputation as a reliable window company that homeowners can trust. With decades of experience behind us, we manage everything from minor window issues to major replacement projects. Whether your windows are drafty, damaged, or simply outdated, our experts deliver solutions that last. We’re proud to help Fountain homeowners improve their homes with efficiency, beauty, and durability.
Proudly recognized as one of America’s top local businesses since 2020, JDI Windows has also received the Best of the Best award every year since 2015. These achievements showcase our dedication to reliability, craftsmanship, and exceptional service. As a trusted Fountain window company, we go beyond window installation—we deliver confidence and comfort.







At JDI Windows, we’ve designed a process that’s straightforward, honest, and stress-free. Ready to start your Fountain window project? Here’s how we do it:
Getting started is easy! Simply call us at 720-619-3121 or fill out our online contact form. Once we have your request, we’ll follow up with a call to go over your project. We’ll ask about the number of windows, the style you’re considering, and details about your home so we can recommend the best options.
After gathering information, we’ll send you a clear, accurate quote tailored to your project. You’ll have the chance to review everything before moving forward. With JDI Windows, you’ll always know the cost upfront — no hidden charges or unexpected fees.
Once the project terms are agreed upon, we’ll move forward to the next step. Our installation specialists will schedule a measuring appointment within 48 hours. During this visit, we’ll take precise measurements of your window spaces to ensure the replacement windows are a perfect fit, guaranteeing a seamless and professional installation.
As soon as your windows arrive, we’ll work with you to set a convenient installation date. After installation, our crew makes sure your home is left spotless and that you’re 100% satisfied. If any concerns come up, we’ll handle them right away. We’re dedicated to delivering a seamless window installation experience in Fountain, offering a wide range of product choices, precise custom-fit installations, and exceptional customer service.
Damaged, drafty, or outdated windows can make your home less comfortable and more costly to maintain. Replacing them boosts curb appeal, increases efficiency, and adds long-term value. At JDI Windows, we create custom solutions designed to fit your Fountain home perfectly.
Building a new home or upgrading an older one in Fountain? We’ve got you covered. As a top-rated window company in Colorado, we combines trusted expertise with high-quality products to deliver a final result you’ll love.


Noticing signs of damage, warping, or poor insulation? We’re here to help with our replacement window services. We’ll evaluate your current windows and recommend energy-efficient, stylish replacements that align with your home’s look and your budget.
Altius windows are our go-to choice because they deliver efficiency, comfort, and timeless appeal. With Energy Star certification and custom sizing for your home, you’ll notice the savings on your energy bills—while enjoying windows that perform beautifully for years.
With over two decades of proven results, JDI Windows continues to earn the trust of homeowners statewide. Our A+ Better Business Bureau rating and customer reviews showcase our commitment. Not sure which option is best? We offer free consultations in Fountain to walk you through styles, energy-efficient features, and pricing.
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When selecting a window company, it’s important to work with one that offers more than just a few standard options. Every home is unique, and your windows should reflect your style, budget, and performance needs. At JDI, we provide homeowners with access to over 300 different window styles, materials, and sizes. From modern designs to classic looks, our team helps you customize the perfect fit so your new windows enhance efficiency, comfort, and curb appeal.
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Instead of relying on national chains that treat customers like numbers, choose a local window company that understands your community and your home’s needs. JDI is family-owned and has over 50 years of combined experience serving Colorado neighborhoods. As a trusted window company in Fountain, we focus on delivering quality craftsmanship, personalized care, and results that last.
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When comparing one company to another, make sure you’re getting clear answers about pricing, installation, and warranties. At JDI, we believe in honesty and transparency from start to finish. Our quotes are straightforward with no hidden fees, and our warranties give you confidence that your investment is protected. Backed by unmatched service and skilled installers, we make window replacement simple and stress-free.
Typically, new window installations in Fountain take just a day or two. Larger projects may extend slightly, but our experienced team works diligently to ensure your new windows are installed properly, leaving your home neat and refreshed.
Of course! Our crews work year-round in Fountain, and winter is actually a smart time to replace drafty windows. You’ll notice immediate improvements in warmth and comfort, plus reduced heating bills. We take special steps to protect your home from the elements during installation.
We take pride in providing honest, upfront pricing. The initial quote you receive is designed to reflect the full cost of your project with no hidden charges. If adjustments are required after final measurements, we’ll discuss them with you in detail before moving forward. Our goal is to ensure you feel confident and informed every step of the way.
With so many options available, it can feel overwhelming to know where to start. That’s where we come in. Our team will walk you through all of your choices (styles, energy ratings, glass types, frames, and finishes) so you can make a decision that balances aesthetics, performance, and budget. We’ll recommend solutions that suit your Fountain home’s architecture and your family’s lifestyle.
There are several warning signs to look out for. Drafts, noticeable temperature fluctuations, condensation or fog between panes, difficulty opening or closing, and visible damage like cracks or warping all indicate it may be time for an upgrade. Rising energy bills can also be a clue that your current windows aren’t performing efficiently. Replacing them with modern, energy-efficient options can improve comfort and reduce costs.