Compare the highest-rated windows professionals in Sullivan, Wisconsin. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, family-owned contractor specializing in full-window replacement and installation for residential properties. They are known for their focus on energy-efficient solutions and strong customer service, making them a top choice in the Lake Country area.
This provider has built a strong reputation for window repair, replacement, and custom projects. They offer a wide selection of brands and focus on both aesthetic upgrades and functional improvements like storm windows.
A local, established company that provides a comprehensive range of glass and window services. They are particularly noted for their responsive repair service and ability to handle custom-sized and historic window projects.
The window service market in and around Sullivan, WI, is characterized by a mix of small, local contractors and a few larger regional companies that serve the broader Jefferson and Waukesha County area. Due to Sullivan's rural nature, many providers are based in nearby hubs like Oconomowoc, Watertown, and Jefferson. Competition is moderate, which helps maintain high standards for service quality and customer care. The market strongly emphasizes energy efficiency due to Wisconsin's climate, with vinyl windows being the most common replacement choice. Typical pricing for a full window replacement on a standard home generally ranges from $7,500 to $20,000, depending on the number of windows, the materials selected (e.g., vinyl, wood, fiberglass), and the complexity of the installation. Homeowners in the area show a high preference for established, local businesses with proven track records over large national chains.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Sullivan regulations and climate
Get answers to common questions about windows services in Sullivan, Wisconsin.
For a standard single-story home in Sullivan, a full window replacement typically ranges from $8,000 to $20,000, depending on the number and size of windows. Key cost factors include the window material (vinyl, wood, or composite), the type of glass (double or triple-pane for our Wisconsin climate), and the complexity of the installation, such as dealing with older home framing or exterior trim. Local material and labor costs also play a role, and we recommend getting at least three detailed, in-home estimates from licensed local contractors for an accurate comparison.
The ideal installation windows are during the late spring, summer, and early fall (May through October). This avoids the extreme cold, snow, and ice of Wisconsin winters, which can complicate sealing and curing processes for caulks and sealants. Scheduling well in advance for these popular months is crucial, as reputable local installers' calendars fill up quickly. Off-season installations in late fall or winter are possible but may come with scheduling challenges and require extra precautions from the crew.
Absolutely. Given Sullivan's cold winters and variable seasons, prioritize windows with a low U-factor (for insulation) and a low Solar Heat Gain Coefficient (SHGC) to retain heat in winter. Look for the ENERGY STAR® certification specific to the "North/Central" climate zone, which Wisconsin is in. Triple-pane glass is an excellent investment for superior energy efficiency and noise reduction, and durable, low-maintenance frames like vinyl or fiberglass perform well against our freeze-thaw cycles and humidity.
Start by verifying the contractor is licensed, insured, and has a physical local address. Check for membership in local associations like the Wisconsin Builders Association. Ask for references from recent projects in Sullivan or nearby towns like Rome or Oconomowoc, and actually contact them. A trustworthy installer will provide a detailed, written contract that includes the specific product details, scope of work, timeline, warranty information (both product and labor), and a clear payment schedule—never just a verbal estimate.
For standard window replacements where the opening size is not being altered, a permit from the Village of Sullivan is generally not required. However, if you are changing the window size or altering the structural opening, a permit is necessary—always confirm with the Village Building Inspector. The installation will cause some disruption, but a professional crew will work to contain dust with drop cloths, remove all old materials, and typically complete the exterior and interior work for a standard home within 1-3 days, minimizing your inconvenience.