The Best Window Installers in Ontario, WI

Compare the highest-rated windows professionals in Ontario, Wisconsin. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

H & H Window and Door LLC

4.8
(95 reviews)
Verified

A highly reputable, locally-owned and operated company specializing in high-quality window and door replacement for residential properties. They are known for their expert installation, attention to detail, and strong focus on customer service. They work with leading brands to provide energy-efficient solutions.

106 South Rock Ave, Viroqua, WI 54665

Specialties & Features

Residential window replacement
Energy-efficient windows
New construction installation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

K&K Siding & Window Company of Sparta

4.7
(80 reviews)
Verified

A well-established contractor serving the Coulee Region, including Monroe County and Ontario. They offer a comprehensive range of exterior services with a strong specialization in window installation and replacement. They are recognized for their professional crews and use of durable, quality products.

201 W Montgomery St, Sparta, WI 54656

Specialties & Features

Window replacement services
Custom window solutions
Storm and security windows

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Brennan's Home Improvement

4.6
(70 reviews)
Verified

A trusted family-owned business known for reliability and quality workmanship in the Viroqua area and throughout Vernon County. They provide a personal touch and are experienced in both window repair and full-window replacement projects, offering consultations for energy efficiency upgrades.

219 N Main St, Viroqua, WI 54665

Specialties & Features

Window repair services
Custom window solutions
Residential window installation

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Windows Contractors in Ontario

The windows market for Ontario, Wisconsin, and the broader Vernon/Monroe County area is characterized by a handful of high-quality, regional contractors rather than a high volume of national chains. Competition is moderate but healthy, driving a strong focus on customer service and craftsmanship to maintain reputation. The average quality of service is high, as these local businesses rely on word-of-mouth and long-term community relationships. Typical pricing is competitive with regional averages, with costs varying significantly based on the scope of the project, window brand (e.g., Andersen, Pella, Marvin), and the level of energy efficiency desired. Homeowners in Ontario can expect to engage with providers who offer personalized service and are adept at handling both modern replacements and repairs for older homes common in the region. Due to the climate, there is a consistent demand for energy-efficient upgrades and storm window solutions.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Ontario regulations and climate

Frequently Asked Questions About Windows in Ontario

Get answers to common questions about windows services in Ontario, Wisconsin.

1What is the typical cost range for a full home window replacement in Ontario, WI?

For a standard-sized home in Ontario, window replacement costs typically range from $8,000 to $20,000, depending on the number of windows, materials (vinyl, wood, fiberglass), and energy efficiency features. Wisconsin's climate makes high-performance, double or triple-pane Low-E windows a crucial investment for managing heating costs in winter and cooling in summer, which can influence the upfront price but offer long-term savings. Always get itemized quotes from local installers that include removal, installation, and disposal.

2When is the best time of year to schedule window installation in our Wisconsin climate?

The ideal installation windows in Ontario are during the late spring (May-June) and early fall (September-October) when temperatures are mild, allowing for proper sealing of caulks and adhesives. While professional installers work year-round, avoiding the deep cold of January or February is wise for both comfort and material performance. Scheduling several months in advance for these peak seasons is recommended, as local contractors' calendars fill up quickly.

3Are there specific building codes or permits required for window replacement in Ontario?

Yes, Ontario follows Wisconsin's Uniform Dwelling Code (UDC) and local municipal codes. While a simple like-for-like window replacement often doesn't require a permit, any change to the window's structural opening size or egress requirements (especially for bedrooms) will. It's crucial to hire a licensed contractor familiar with Vernon County and Ontario's specific regulations who will handle any necessary permits, ensuring your installation is compliant and safe.

4How do I choose a reliable window installation contractor in the Ontario area?

Prioritize local, established contractors with verifiable physical addresses and strong references from within Vernon County or nearby communities like Viroqua. Check for proper Wisconsin licensing and insurance, and look for certifications from major window manufacturers (e.g., Andersen, Pella, Marvin), which indicate trained installation crews. Always review local online feedback and ask for proof of recent work to assess their experience with our region's older home styles and weather challenges.

5What are the most important energy efficiency features for windows in Ontario's climate?

Given Ontario's cold winters and humid summers, look for windows with a low U-factor (for insulation against heat loss) and a low Solar Heat Gain Coefficient (SHGC) to manage summer sun. Double-pane windows with argon gas fill and Low-E coatings are the effective standard, but triple-pane is an excellent upgrade for maximum comfort and energy savings. Ensure the installer uses proper air-sealing techniques to prevent drafts, a common issue in Wisconsin's windy conditions.