Mainstream Home Improvement
1554 52nd Ave.
Moline, IL 61265 Map
Phone: (309) 762-6244

Mainstream Home Improvement Banner

Year After Year, Our Customers Vote

Mainstream Home Improvement As 

The Best In The Quad Cities Area

We Love Our Customers

Mainstream Home Improvement opened its doors July 31, 2001. Jeff Wroblewski and Spencer Sierra, the two owners of the company, had a vision of creating a home improvement contractor in the Quad Cities that would build lasting relationships with its customers. They believed word of mouth advertising was the key for a small business to succeed. Keeping your customers happy will lead to referrals and additional work to your customer's home.
Mainstream's success would come from believing in 4 key components:
  1. Customer Service
  2. Quality Products
  3. Quality Installation
  4. Teamwork

Mainstream successfully followed the plan in the years to come. We've won many awards and have built many great relationships with our customers.

Expect Excellence When Choosing Mainstream!
We believe once a homeowner joins our growing family of customers, it's our responsibility to make them feel important throughout the entire process. We truly want them to have a great experience with our company. Each homeowner will receive a nightly phone call from our office manager, Marci Boswell, to answer any question they may have about their project. We want to make sure our customers are happy with us on a daily basis. We also visit each jobsite daily. We will make sure everything is running smoothly and each homeowner is aware of everything going on with their project.
Once a job is completed, we will perform our Victory Lap with the homeowner. The Victory Lap consists of an overall inspection of the job. The inspection includes such things as checking the operation of the windows, making sure the windows are cleaned (inside and out), all exterior walls on a siding project are cleaned, and a final walk around the house to make sure the jobsite is clean. We want to make sure our customers are 100% satisfied. We always appreciate feedback from our customers. We are not a perfect company and are always listening to our customers to find ways to improve as a home improvement contractor in the Quad Cities.
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
Mainstream Home Improvement has property, general liability, automobile and workers compensation insurance. Companies need to have proper insurance or they run the risk of going out of business. Homeowners will be held responsible for any accident on their property if the company does not have proper insurance.
Awards & Achievements
  • Better Business Bureau Integrity Award 
  • Keeping Rock Island Beautiful Award - Recycling Shingles Program 
  • SCORE's Small Business of the Year Award 
  • Owens Corning Preferred Contractor 
  • Featured in Quad City Business Journal Top 40 
  • Thousands of references 
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