About Bosteter Windows & Siding

Bosteter Windows & Siding, Inc. is your source for all your exterior home improvements. They specialize in windows, siding, doors of all kinds, soffit, fascia, and custom made aluminum trim. They are a fully licensed general contractor in the states of Minnesota and Wisconsin. They even build garages, small decks, and light remodeling. Bosteter Windows & Siding, Inc., has been providing premium products and installation in the Winona area and surrounding communities since 1993.

We provide high-performance products that offer immediate benefits like lower energy bills, higher resale value, improved safety, added convenience, and greater curb appeal -among many others. Just as importantly, we expertly install those products for assured performance. Unfortunately, different companies installing the same products can result in significantly different levels of comfort, performance, and appearance. At Bosteter Windows & Siding, Inc., we continually train our installation crews (employees, not sub-contractors) to keep up with new product specifics and advanced installation techniques.

What’s more, we believe in “service after the sale” so we only select product manufacturers with exceptional product guarantees and we offer OUR OWN INSTALLATION WARRANTY. Few, if any, of our competitors have made this same level of commitment – most are not willing to stand behind their work. Our Goal – To exceed our customers expectations! “We are with you every step of the way”, making your home improvement project a stress-free and satisfying experience from start to finish. Service is an integral part of our business! Our trained installers have consideration for your property and will carefully remove and recycle or dispose of old materials at no extra charge. They will completely clean up the site after the installation.

Bosteter Windows & Siding, Inc., has been providing the very best in home improvement products and installation for many years. Our dedication to quality, our expertise and our energy efficient and cost effective product lines make Bosteter Windows & Siding, Inc., your best choice for all your window, siding and home beautification needs. No high pressure sales here. At Bosteter Windows & Siding, Inc., the quality and value of our products sell themselves.

Derek Bosteter, president and owner of Bosteter Windows & Siding, Inc., has dedicated more than 32 years to gaining the experience and knowledge of siding and window installation, remodeling and new construction necessary to provide homeowners first-rate service.

Derek Bosteter has gone through the vigorous process of becoming a Vinyl Siding Institute (VSI) Certified Installer.  Through the VSI Certified Installer Program, experienced professionals receive thorough training on proper, industry-approved vinyl siding installation techniques. VSI’s certification process involves classroom training and a written examination given by a VSI Certified Trainer.

Each VSI Certified Installer must demonstrate the knowledge and skills to properly install vinyl siding and accessories, based on the industry standard, ASTM D4756. When you hire an installer certified through VSI’s program, you can be confident that he or she knows how to:

• Correctly fasten the siding to allow for vinyl’s normal expansion and contraction properties and keep it straight and secure on the wall.
• Properly prepare the area around doors, windows, and other openings to prevent water infiltration.
• Pay attention to the details that will give your home a beautiful appearance that will last over time.

To become a VSI Certified Installer, candidates must have a minimum of two years of installation experience, attend VSI’s rigorous course, and pass the VSI Certified Installer examination. All VSI Certified Installers must apply for recertification every three years, to ensure that they stay abreast of the latest application techniques.

Bosteter Windows and Siding is a Certified Lead Safe Company with the EPA, Minnesota Department of Health. If you’re concerned that lead may be present during your next home improvement project rest assured that all appropriate lead safe practices will be followed. At Bosteter Windows and Siding we treat all pre-1978 homes as if lead is in fact present. We take this extra step to assure the safety of our valued customers.