Your Trusted Northern Colorado Supplier for Vinyl and Wood Windows
Builders Supply in Fort Collins, Colorado, has been proudly serving Northern Colorado with high-quality vinyl and wood windows for over 35 years. Finding the right windows and doors that meet your style, performance, and budget requirements can be challenging. Many homeowners and builders face obstacles such as limited inventory, slow service response, or confusing product options that delay construction or renovation projects.
At Builders Supply, we solve these problems with a large catalog of top-quality windows and doors, fast and friendly service, and knowledgeable support. Whether you need a single replacement window or supplies for a large development, our trusted brand partnerships and experienced team make your project simple and successful.
Full Range of Window and Door Services

Window and Door Takeoffs
Accurate measurements and estimates to streamline ordering and installation.

Product Selection and Consultation
Expert guidance to help you choose the best products for your home or business.

Showroom Appointments
Visit our Fort Collins showroom to see samples, ask questions, and make confident choices.
Free Quotes
Receive detailed and transparent quotes to fit your budget.

Order Management and Delivery Coordination
We handle ordering, tracking, and delivery for a stress-free process.

Service and Warranty Support
Ongoing support, including repairs, replacements, and warranty claims.

Screen and Hardware Service
Repairs and replacements for window screens and hardware components.

Builder and Contractor Support
Dedicated services designed for professionals managing multiple projects.

Replacement and Small Order Sales
We accommodate individual homeowners and small businesses needing single or limited items.
Our full-service approach means you do not need to worry about supply delays or incomplete orders. We are your dependable partner throughout every stage of your project.
Why Choose Builders Supply?
Choosing the right supplier is crucial to the success of your windows and doors project. Here is why Builders Supply stands out in Northern Colorado:
- Local, Family-Owned Business: With roots in Fort Collins since 1985, we have built a reputation for trust and reliability.
- Premium Brands: Partnering with Andersen, Amsco, Therma-Tru, and others to ensure durable and energy-efficient products.
- Skilled and Experienced Team: Knowledgeable experts provide personalized advice and support tailored to your needs.
- Transparent Pricing: Free quotes with no hidden fees. We help you plan your budget with confidence.
- Excellent Customer Service: From your initial inquiry through installation and beyond, we offer responsive and friendly service.
- Warranty and Service Handling: We handle all warranty claims and provide quality repairs to protect your investment.
- Support for Builders and Contractors: We understand the demands of large construction projects and deliver dependable service to meet schedules.
Builders Supply is committed to making your buying experience smooth and your project successful.
What to Expect When You Work With Us
We know that choosing new windows and doors is a significant decision. Here is the step-by-step experience you can expect at Builders Supply:
Step 1
Initial Consultation and Assessment
Call
(970) 482-1320 or visit our showroom to discuss your project. Our experts will listen to your goals, help identify suitable products, and provide initial pricing estimates.
Step 2
Precise Takeoffs and Measurements
We conduct careful takeoffs to ensure every window and door is sized perfectly, avoiding costly mistakes.
Step 3
Product Selection
Explore our showroom or catalog for options that match your style preferences and performance needs. We guide you through materials, finishes, and features.
Step 4
Free Quote and Order Confirmation
Receive a transparent quote and approve your order once all details are confirmed.
Step 5
Efficient Order Processing and Delivery
We coordinate with suppliers and manage delivery schedules, keeping you informed every step of the way.
Step 6
Installation and After-Sales Support
Although we do not install, we support your installers with any technical questions and provide ongoing warranty and repair services post-installation.
About Builders Supply
Builders Supply, Inc. has been a leading window and door supplier serving Fort Collins and all of Northern Colorado since 1985. Locally owned and operated by the Kraxberger family, we specialize in providing builders, contractors, and homeowners with reliable, high-quality products from trusted manufacturers.
Our commitment is to exceptional customer service, expert advice, and dependable delivery. We carry an extensive variety of vinyl and wood windows, exterior doors, skylights, and block windows. Our knowledgeable team assists with takeoffs, consultations, and managing orders to make every project simple and efficient.
At Builders Supply, we believe in building lasting relationships based on trust, quality, and support.
Visit Our Fort Collins Showroom
We encourage you to come see our products in person and meet our friendly team. Our showroom is located at 801 Smithfield Drive, Fort Collins, Colorado 80524, and is open Monday through Friday from 7:30 a.m. to 4:30 p.m.
Experiencing window and door samples up close can make all the difference when choosing the right solutions for your home or project. Our experts are ready to answer your questions and help you make confident selections.

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Great prices. Great service. I’m a satisfied customer and would definitely recommend them to others! - Courtney M.
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Great service and availability for replacement parts. In my case.. AMSCO windows. - Rich B.
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Friendly people! Definitely check this place out for your windows and doors needs! - Jose F.
Contact Builders Supply Today
Get started on your windows and doors project with Northern Colorado’s trusted supplier. Call Builders Supply at (970) 482-1320 for a free estimate, showroom appointment, or consultation. Our team is ready to provide the quality products and personalized service your project deserves.






