About Us - Mainstream Home Improvement

In the summer of 2001, Jeff Wroblewski and Spencer Sierra, the partners and owners of Mainstream Home Improvement, Inc. began contemplating opening a home improvement business. With years of combined experience they came together to form and build a home improvement business based on satisfied customers. It is their goal to offer the finest home improvement products and the most affordable prices. Mainstream Home Improvement will focus on a relentless pursuit of customer satisfaction and trust. We are confident you will be happy with our work and your finished product.

From left, co-owners Jeff Wroblewski, Spencer Sierra, office manager Marci McMullen and production manager Dave Flores all work at Mainstream Home Improvement in Rock Island. The business, which installs windows, doors, vinyl siding and other home improvements recently won Score's Small Business of the Year award.

Mainstream Vision Statement

“At Mainstream Home Improvement we are a company that believes in building personal relationships with all of our past, present, and future customers. We will listen to our customer needs and provide them with the best possible service and products at the best possible price. We will treat each customer with respect. We will deliver an experience to our customer that is second to none and better than they could have ever imagined.”

Licensed, Bonded & Insured

We are a company that is licensed, bonded, and insured. We take pride in handling your home improvement project from start to finish. Because we are licensed and insured, we may purchase permits in any city we work, and we have adequate insurance in case of an accident. Our insurance agency is Cleaveland Insurance in Rock Island, IL. If you have any questions regarding our insurance policy, please contact them at 309-794-9700 ext 202.

Victory Lap

Our goal is your complete satisfaction and approval. With Dave Flores inspecting every job site daily, our high standards of job performance is constantly maintained. Each installation crew has a specific duty with Mainstream.

• Our window crews install windows, Siding crews install siding, and roofing crews install roofs. All crews are highly trained, skilled professionals who work year-round.

• At the time of completion, Dave will hand the customer a victory lap certificate to sign. We ask each customer to sign a copy of the victory lap after a complete and thorough job inspection has been done. Our job inspection includes cleaning up and hauling away all related debris; including cleaning all windows if purchased, cleaning all exterior walls on a siding project, and for new roofs; walking around the house with a nail magnet to make sure we leave a clean job site.

• We offer quality products, top-notch installation, and will service our product far after the sale. Customer referrals are a large part of our business and know that if you are happy we are happy.

Company Memberships

• Better Business Bureau
• Chamber of Commerce
• Quad Cities Homebuilder's Association

Charitable Contributions

• Children's Therapy Center of the Quad Cities
• Newspapers In Education
• Muscular Dystrophy
• Area Schools
• Area Churches
• Birdies for Charity
• Arrowhead Ranch
• Boy Scouts and Girls Scouts of the Quad Cities
• Area Sporting Teams
• Quad Cities Marathon

Call Today To Set Up Your Free Estimate

866 • 786 • 8500