Replacement Windows, Vinyl Siding & James Hardie Siding
Call Us: 303-772-5352 or 303-447-9822



John G. in Boulder

Very good work. Installer was conscientious and professional. Would not hesitate to recommend both the products and the installation.”

Bob & Betty in Louisville

We’re very happy! BVS was 20% less than other contractors after comparing apples to apples. I can’t say enough about this company. They had all the insurance, references, licenses, etc… It was No Money Down , no lein waivers, great warranties and labor guarantees. Their salesman designed our windows and siding with beautiful results and we got a discount! Now we have the best looking house in town. (No Joke) They did an excellent job.”

Jerry in Boulder

Boulder Valley Siding provided us with a detailed quote and the lowest price. The designed our siding to fit our neighborhood and our budget. Their workers were always on time and did great work. They finished on schedule and there was no hidden cost.  Everthing Looks Great.


Evelyn W. in Louisville

We are very pleased with the way the installation was done. Each area was cleaned as the work was completed, so it didn’t feel like our house was torn apart. The installer was very friendly, polite and respectful. Thanks!”

Ruth K. in Boulder

Upon completion of the job, I am very satisfied. The installer has been exceptional. His consciousness has never ceased to amaze me! Everyone should be so lucky to have him assigned to their job. I am looking forward to many years of carefree outer home maintenance.”

Orville L. in Longmont

Clayton was professional and made sure the windows were installed correctly. Clayton was meticulous with the finish work, polite and friendly answering virtually all of our questions.

Katherine in Longmont

They did an outstanding job! I highly recommend this company. They’re installers were professional. They worked hard, not even breaking for lunch. They listened to all our request and were quick to accommodate us.”

Bill in Lafayette

We called Boulder Valley Siding for a Window Inspection. Their salesperson was great, he had local products which we liked. Appeared to have more knowledge of windows and doors than the big box stores. Plus we liked keeping our $$ local. It was a pleasure working with Boulder Valley Siding, Very professional from beginning to end. The house was spotless when they were finished. Overall they did a fine job.”

Judy in Longmont

What I liked about this company was no high pressure. They gave us a fair bid and encouraged us to check around. We ended up paying less than we budgeted for. We have talked up this company to our neighbors. The new siding brightened up my house, No More Painting!

Jack in North Boulder

Never has my house looked so good! I love the khaki brown James Hardie color of my house. Better yet, I don’t have to worry about paint bids every 4-5 years. I had several estimates from other companies, but they had few references. BVS Showed me work they had done near me so i didn’t have to go far to check out their work. Just like I’m proud of my house and the insulation they used really works!”