Boulder Valley Siding

Business Details

39 Years

experience

Expert Home Siding & Window Installation in Longmont, CO

Boulder Valley Siding has served Boulder County and surrounding areas for over 25 years, specializing in high-quality home improvement solutions. Founded in 1987 by Patrick Cordes and now operated alongside his son Clayton, our family-owned business prioritizes integrity, craftsmanship, and customer satisfaction. We exclusively offer locally built Amerimax vinyl windows designed for Colorado's climate, ensuring durability and energy efficiency. Our expertise extends to premium vinyl siding from Mastic Home Exteriors and James Hardie fiber cement siding, both engineered for longevity and aesthetic appeal.

We provide Diamond Kote Smartside and RigidStack siding options with industry-leading warranties, backed by our own professional installation crews. With thousands of completed projects, we guarantee all installations and emphasize transparent pricing, no hidden fees, and senior discounts. Our commitment to excellence is reflected in our Angie's List recognition and extensive local references, ensuring clients receive reliable, tailored solutions for their homes.

Services

Replacement Windows Vinyl Siding James Hardie Siding Diamond Kote Smartside Siding RigidStack Siding Patio Doors Entry Door Installation Trim and Fascia Work Energy Efficiency Upgrades Home Insulation

Details

Year established: 1987

Highlights and features

We have over 25 years of experience in local home improvement projects.
Our team installs only locally built Amerimax windows designed for Colorado's climate.
We guarantee all installations with transparent pricing and no hidden fees.
Our product warranties include 30-year no-fade coverage for siding finishes.
We offer senior discounts and have thousands of satisfied local customers.

Associations and certifications

James Hardie Associate Contractor
Amerimax Certified Installer

What people say

Professional installers 20% less than others No hidden costs Excellent job Spotless finish

Website

Update Listing

Services

Replacement Windows

Boulder Valley Siding installs Amerimax vinyl windows built specifically for Colorado's altitude, ensuring durability and energy efficiency. These windows resist failure from extreme weather and stimulate the local economy. Our team offers custom designs, including bay windows and patio doors, with lifetime warranties and easy maintenance.

Vinyl Siding

We provide Mastic Home Exteriors vinyl siding solutions that eliminate the need for painting while offering energy efficiency and low maintenance. Available in diverse textures and colors, our siding resists mold, dents, and fading, enhancing curb appeal and home value with coordinated trim and gutter options.

James Hardie Siding

As a James Hardie Associate Contractor, we install fiber cement siding designed to withstand hail, termites, and extreme weather for up to 50 years. This noncombustible, fade-resistant product adds insulation value and can be repainted, offering long-term durability and aesthetic flexibility.

Diamond Kote Smartside Siding

Diamond Kote Smartside siding combines LP SmartSide engineered wood with a 30-year no-fade finish. Treated to resist moisture, termites, and decay, it features a hidden fastener system for straighter walls and fewer seams, backed by a 5/50-year limited warranty.

RigidStack Siding

RigidStack siding uses a patented hidden fastener system for wind resistance and a flawless appearance. Built on LP SmartSide, it offers 33% fewer seams, multiple width options, and a 30-year warranty, ensuring strength and low maintenance for modern homes.

People

Patrick Cordes

Owner

Patrick Cordes founded Boulder Valley Siding in 1987, bringing decades of construction expertise. He prioritizes ethical business practices and quality craftsmanship, ensuring every project meets strict standards while supporting local economic growth.

Clayton Cordes

Installer

Clayton Cordes, Patrick's son, leads installation teams with meticulous attention to detail. His hands-on approach ensures precise window and siding installations, reflecting the family's commitment to customer satisfaction and long-term home durability.

Questions

What services does Boulder Valley Siding offer?

We specialize in replacement windows, vinyl siding, James Hardie fiber cement siding, Diamond Kote Smartside, and RigidStack siding installations for residential properties.

Why should I choose BVS for my home improvement project?

With 25+ years of local experience, we use high-quality, Colorado-built products, offer transparent pricing, and guarantee all installations with no hidden fees.

Do you serve areas outside Boulder County?

Yes, we serve Boulder, Broomfield, Larimer, Adams, and Weld Counties, including cities like Longmont, Lafayette, and Erie.

Are financing options available?

Currently, we do not offer in-house financing but can discuss payment plans or manufacturer rebates to accommodate your budget.

What warranties do your products carry?

Our siding products include 30-year no-fade warranties, and Amerimax windows come with lifetime warranties, covering both materials and labor.

How does BVS comply with Boulder's SmartRegs energy standards?

We help rental property owners meet SmartRegs requirements through energy-efficient window and siding upgrades that improve insulation and reduce utility costs.

Reviews (6)

Write a Review

Nicole Mendez

Jan 19, 2021 Report

Clayton and Josh were amazing. Attention to detail, personable, and professional and they got along with our dogs which is great haha. Didn't leave a mess, and did super clean work. We have had our windows and siding done by Boulder valley siding and windows and we couldn't be happier! My house went from 80's to modern and it's beautiful. Thank you so much for everything!

Laura

Jun 02, 2019 Report

Amerimax windows make the rooms more solid, and definitely warmer. Work done in timely fashion, no mess left behind. I recommend this local, family owned business.

Sara Avery

Feb 25, 2019 Report

I'm so happy I chose them to replace all the windows in my house. Clay is so pleasant to work with, and Clay and Josh made what seemed like it could be a miserable couple of days much easier than I could have expected. They're very detail oriented and made sure that every aspect of the job was done in a way I was happy with. Plus, they carefully looked out for my dog the whole time. If they did other work my house needed, they'd be at the top of my list to call!

Gretchen Klein

Feb 10, 2019 Report

Clayton did a great job and was very flexible with the installation timing of our new windows throughout the house. We are very happy with the quality and service!

Garry Shaw

Jun 27, 2017 Report

We are very pleased with Boulder Valley Siding. They did a very good job and were very particular with their work. We love our LP Smartside siding with shake trim. They were always prompt, pleasant and easy to deal with. We highly recommend this company.

Katherine Velasco

May 19, 2017 Report

The Alcoa siding on the house I purchased is starting to peel badly. The siding has a lifetime warranty. I contacted Boulder Valley Siding in July, 2016 as they were the installer in 1996. They confirmed the installation but told me rather rudely that they can't be bothered with looking at this. I have since tried to work with the manufacturer of the siding product, who is denying responsibility.

What is the point of having a lifetime warranty when no one will help? I have called Boulder Valley Siding to at least get a statement from them on the product and their installation to forward to Alcoa. still waiting.