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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon29
    Verified roofing services reviews

Top-Rated Roofers in Ontario - Updated Nov 2026

Avatar for Heritage Home Services, LLC
Heritage Home Services, LLC
5.0(
5
)
Metal Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - Repair+1 more

Serving Ontario, WI and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"I reached out to Brad to do a roof inspection and give a quote to a buyer. He was there the next day and was very thorough. My clients and myself were very satisfied - he is able to do everything necessary to do the needed repairs. Amazing work! Highly recommend Brad!"
Before
During
Standing Seam
Standing Seam
After

+2

Response time1 day
Response rate100%
9 neighbors recently requested a quote
Avatar for Jerry's Painting
Jerry's Painting
4.9(
6
)
Sealant for Roof - Apply- For Business

Serving Ontario, WI and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"Quality professional work at a fair price. I would recommend him to anyone and hire him again. Our old faded silver/gray roof looks like brand new now."
Painting photos
Painting photos
Painting photos
Painting photos
Painting photos

+21

Response time4 days
8 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Driftless Exteriors
Driftless Exteriors
4.5(
17
)
Roof - Clean

Serving Ontario, WI and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Blake is very professional and did a excellent job spray washing the whole exterior (vinyl and brick) of my house and roof. He also flushed the gutters and down spouts. I wouldn't hesitate to call him again."
Cleaning and Staining
Cleaning and Staining
Deck After
Cleaning and Staining
Cleaning and Staining

+2

Response time3 days
9 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for RW Solutions, LLC
RW Solutions, LLC
5.0(
2
)
Flat, Foam or Single Ply Roofing - Repair- For BusinessFlat, Foam, or Single Ply Roofing - Install or Replace- For Business

Serving Ontario, WI and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

RW Solutions LLC is a bonded and fully insured roofing contractor specializing in flat roofing systems, including EPDM and TPO. Flat roofs require experienced installers, and that?s where we focus our expertise. \n \nWe handle new installations, leak repairs, and maintenance, and we also provide repairs on all roofing systems. Our approach is straightforward?honest recommendations, quality workmanship, and clear communication from start to finish. \n \nWhether it?s a small repair or a full roof replacement, RW Solutions delivers reliable, professional roofing you can trust.

TPO
TPO
TPO
EPDM Roofing
EPDM Roofing

+2

Avatar for Affordable Home Remodeling
Affordable Home Remodeling
4.0(
82
)
Asphalt Shingle Roofing - Install or ReplaceMetal Roofing - Install or ReplaceAsphalt Shingle Roofing - Repair+3 more

Serving Ontario, WI and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I was impressed from the very beginning from the presentation and how our questions were answered. Oscar and his crew did a beautiful job of installing our roof and cleared up the site before they left excellently. Extremely polite and efficient. Job was done in one day and were so happy with the results"
Response time1 day
Response rate97%
201 neighbors recently requested a quote
Riverview Builders
New to Angi
Asphalt Shingle Roofing - Install or Replace

Serving Ontario, WI and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

contractor, we treat every project as if we were working on our own family home. \n \nFully licensed and insured in both Minnesota and Wisconsin, we specialize in residential construction, remodeling, and custom building. We pride ourselves on prompt project timelines, transparent communication, and top-tier craftsmanship. Should any detail fall short along the way, we take full accountability and correct it immediately. When you work with Riverview Builders, you're partnering with local builders who stand behind their word and their work.

1 neighbors recently requested a quote
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Roofing FAQs, answered by experts

A roof replacement will usually include removal of your old roof, shingle replacement, and a new roof underlayment, but it may only include adding new shingles if you’re layering new shingles over the old shingles. If you have signs of roof leaks or your roofer finds water damage to the roof decking underneath your old roof, it can also include replacement of the OSB or plywood decking that lays over your rafters and supports the roofing material above.

A standard roof can hold a live load of about 20 pounds per square foot. However, gable roofs often have steeper-than-average slopes, so calculating their weight capacity can be challenging. If the slope of your gable roof is greater than 4:12, the live load needs to be decreased to allow for a larger dead load. Ask your roofer exactly how much weight your roof can support.

Complete house winterization goes above and beyond the list we created above. In addition to everything listed, full house winterization also includes:

  • Performing a home energy audit.

  • Preparing your deck and patio for winter.

  • Learning how to start a snowblower.

  • Replacing smoke detector batteries.

  • Installing outlet gaskets.

  • Installing storm doors.  

The number of roof vents necessary for a 2,000-square-foot house depends on several factors. The calculation depends on the net free area within the attic and whether your municipality requires a 1/150 or a 1/300 ratio of venting square feet to attic square feet. If you install vents with a square-foot opening of one, you'll need either 14 or seven exhaust vents and an equal square-foot amount of intake vents.

Roof sheathing can buckle from moisture damage, too much weight from roofing materials, or too much space in between rafters without thicker sheathing to compensate for the added distance. Bucking roof sheathing is a serious problem that can lead to a collapsed roof, so have a qualified roofer near you come to identify the problem as soon as possible. 

The Ontario, WI homeowners’ guide to roofing services

From average costs to expert advice, get all the answers you need to get your job done.