Business Details
35 Years
experience
Trusted Window and Door Installation in Cedarburg, WI
Custom View Windows is a family-owned business established in 1991, dedicated to providing high-quality window and door solutions. Founded by John Zellmer and his wife Heidi, our company prioritizes personalized service, treating every client's home with the care and attention we would our own. With over 20 years of experience, we specialize in the sale and installation of energy-efficient vinyl and wood windows, entry doors, storm doors, and patio doors, serving Ozaukee County and surrounding areas. Our commitment to quality is reflected in our selection of premium products from trusted brands like Sunrise Vinyl Windows and Pella Wood Windows, all backed by lifetime warranties. John Zellmer, a craftsman with old-world skills, oversees every project from start to finish, ensuring precision and customer satisfaction.We pride ourselves on transparency, offering free in-home estimates and maintaining open communication throughout the process. Our team's expertise in problem-solving and attention to detail have earned us a reputation for excellence, as evidenced by numerous testimonials from satisfied homeowners. By operating from our home office in Cedarburg, we minimize overhead costs to provide competitive pricing without compromising on craftsmanship. Our dedication to energy efficiency, durability, and aesthetic appeal ensures that every installation enhances both the functionality and value of your home. Whether you seek a classic bay window or a modern patio door, we deliver tailored solutions that meet your unique needs and preferences.
Services
Vinyl Windows
Wood Windows
Entry Doors
Storm Doors
Patio Doors
Custom Window Solutions
Energy-Efficient Installations
Free In-Home Estimates
Details
- Year established: 1991
Highlights and features
- We have over 30 years of experience in window and door installation.
- Our team offers personalized, on-site craftsmanship for every project.
- We use only premium products with lifetime warranties from trusted brands.
- We provide free, no-obligation in-home estimates to all clients.
- Our local expertise ensures tailored solutions for Wisconsin homeowners.
What people say
Old world craftsmanship skills
Attention to detail
Quality work
First class service
Problem-solving expertise
Services
Vinyl Windows
Custom View Windows installs Sunrise Vinyl Windows, featuring energy-efficient PVC construction with polyurethane foam insulation. These windows offer 15 color combinations, decorative glass options, and triple weather-stripping seals to reduce energy costs. Designed for durability and ease of maintenance, they include tilt-in sashes for simple cleaning and a stylish frame that ensures long-term airtight performance.
Wood Windows
We offer Pella Designer Series Wood Windows with triple-pane glass and Low-E coatings for superior insulation. Available in custom shapes and sizes, these windows include optional between-the-glass blinds, multiple grille patterns, and durable aluminum-clad exteriors. Each installation is backed by Pella's national service network and our craftsmanship warranty.
Entry Doors
Custom steel entry doors combine security and energy efficiency with reinforced lockset areas, triple-contact bottom sweeps, and high-density polyurethane cores. Available in smooth or textured finishes, these doors feature decorative glass options and corrosion-resistant hardware to enhance curb appeal while reducing heating and cooling costs.
Storm Doors
Our custom storm doors provide ventilation and protection with fullview, midview, and highview frame styles. Constructed with heavy-duty frames and rigid foam insulation, they come in multiple glass and color options to complement your home's exterior while improving energy efficiency.
Patio Doors
Pella Designer Series Patio Doors include contemporary, French, and French hinged styles with argon-filled Low-E glass and three-point locking systems. These doors feature durable EnduraClad exteriors, cordless between-the-glass blinds, and self-closing screens for enhanced security, energy efficiency, and aesthetic appeal.
People
John Zellmer
President
John Zellmer, founder of Custom View Windows, brings over 30 years of carpentry expertise to every project. Known for his old-world craftsmanship and attention to detail, he personally oversees installations to ensure quality and customer satisfaction.
Heidi Zellmer
Office Manager
Heidi Zellmer manages client communications and scheduling for Custom View Windows. Her organizational skills ensure seamless coordination between clients and on-site teams, supporting the company's commitment to personalized service.
Questions
What types of windows do you install?
We install vinyl and wood windows, including bay, bow, double-hung, picture, slider, awning, and casement styles from brands like Sunrise and Pella.
Do you offer free estimates?
Yes, we provide free in-home estimates for all window and door installations in Ozaukee County and surrounding areas.
Are your products energy-efficient?
Yes, our vinyl and wood windows feature energy-saving designs with Low-E glass, argon fill, and foam insulation to reduce utility bills.
What areas do you serve?
We serve Cedarburg, Grafton, Mequon, Thiensville, Port Washington, West Bend, and nearby Wisconsin communities.
Do you install doors as well?
Yes, we offer entry doors, storm doors, and patio doors with customizable options for security, energy efficiency, and style.
What warranties are available?
Our products come with lifetime warranties from manufacturers like Sunrise and Pella, plus our own craftsmanship warranty on installations.
