Mainstream Home Improvement
Who voted for Mainstream Home Improvement
1 Location
1554 52nd Ave.
Moline, IL 61265 Map
Phone: (309) 762-6244
Year After Year, Our Customers Vote
Mainstream Home Improvement As
The Best In The Quad Cities Area
We Love Our Customers
When this company was founded in 2001, little did Spencer Sierra, the owner of the company, know the adventure that lay ahead. The drive to start was born out of sheer frustration- it was incredibly challenging to find a reliable contractor who delivered on their promises. The industry was rife with games, broken promises, and a baffling lack of professionalism, such as not showing up or even bothering to call. That's the reason Mainstream was born.
We specialize in Replacement Windows, Siding, Roofing, Gutters, and Gutter Covers, and we excel in these areas. What truly sets us apart is our lifetime workmanship guarantee. We're not only committed to quality but also hold a strong reputation with the BBB, backed by hundreds of 5-star Google Reviews from genuine customers.
Living right here in the Quad Cities, we're your neighbors- honest, straightforward, and always here for you. We'd love the opportunity to prove just how different we are.
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.
Mission: We enrich the lives of our homeowners, team members, and community by acting with the utmost care and efficiency. We pay close attention to details and needs, always working with pleasure, humility, and care.
Vision: We are a company that consistently delivers an experience that is beyond 5 stars.
Clear & Open Communication, Others First, Up-Tempo, Prepared For Tomorrow, Done with Pleasure, Making Change Be Stress Free
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
- Exclusive Sunrise Restorations Window Dealer
- Malarkey Emerald Pro Contractor
- Malarkey Certified Residential Contractor
Company Memberships
- Better Business Bureau
- Chamber of Commerce
- Quad Cities Homebuilder's Association
Charitable Contributions
- Sacred Heart Food Pantry
- St. Anthony's McAnthony Window
- Holy Family Davenport
- L'Arche Clinton
- Area Sports Teams
- Area Schools