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Top-Rated Natural slate roofing repairers in Trevor - Updated Nov 2026

Avatar for Celeste Builders
Celeste Builders
5.0(
15
)
Natural Slate Roofing - Repair

Serving Trevor, WI and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"My roof was started leaking after the snow wad mounted, I called him on Friday and he came out Saturday and identified the problem then today (02/21) he and his crew came out to my house. They tore up the old roof, they reconstructed a portion in the front of my house and then they put a whole new roof. They did a beautiful job, they left my yard immaculate, they have a reasonable price but I will not post it here, and they were very professional."
New roof install
New roof
Rubber job
New roof
New roof install

+67

6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Weather Pro Exteriors Inc.
Weather Pro Exteriors Inc.
4.1(
33
)
Natural Slate Roofing - Repair

Serving Trevor, WI and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"Matt, the owner of WeatherPro Exteriors is always professional. He provided a quote and scope of delivery and followed through as promised. His installers did a wonderful job and were finished in no time. They too, were professional, respectful and polite. The site was all clean when they left. The installation work was of the highest quality. No issues there. My only problem is with the storm windows themselves. The latches on the windows and screens didn't operate properly, a manufacturer's defect. I informed Matt's lead installer, John, who came out immediately to see for himself, what the problem was. He agreed that there indeed was an issue and advised me that he would need to contact the distributor, which he did. After a couple of weeks, the distributor's service man stopped by, and I showed him the problem. He said that he would contact the manufacturer, because it was a manufacturer's defect. That was a month ago. Today I finally received a call from the manufacturer (ProVia) and the service manager said one of his service guys would stop by when he was in the area. He expected that to happen within another four weeks. The average cost per storm window was appx. $306 installed. Kind of expensive when you consider what a brand new complete window costs and the defect resolution that I am chasing. Ironically, I ordered just one storm window to begin with to verify color and quality. It was perfect, so I went ahead with the balance of the order (nine more windows). After they were all installed, I discovered that the nine subsequent windows were all defective. Only the first (sample) storm window, works perfect. Trying to get this resolved is taking quite some time. Seems like everyone says it's someone else's responsibility.
"
Additional Photos
Additional Photos
Unlike other companies in town, we use our own in-house roofing crews to install your roof. Ensuring you get the best install with he best warranties every time.
James Hardie Siding Replacement
Additional Photos

+3

Response time1 day
Response rate100%
20 neighbors recently requested a quote
Avatar for Guardian Professional Contracting Services, Inc.
Guardian Professional Contracting Services, Inc.
3.3(
152
)
Natural Slate Roofing - Repair

Serving Trevor, WI and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"Came out and repaired the roof where the shingles had been blown upwards. Included pictures of the roof and actually found another spot potentially bad and patched that also. Was fixed in a matter of hours from when I first called."
Siding
Windows & Doors
Siding
Siding
Response time9 hrs
Response rate100%
261 neighbors recently requested a quote
Avatar for Ridge Top Exteriors, Inc.
Ridge Top Exteriors, Inc.
3.7(
71
)
Natural Slate Roofing - Repair

Serving Trevor, WI and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

"I booked the roof repair job, and they were prompt to come out to first do a survey, provided a quote, and we were able to quickly schedule a time for repair. Repairs were done quickly, and there was great communication with the office."
Before
After
43 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Custom Installations
Custom Installations
4.3(
6
)
Natural Slate Roofing - Repair

Serving Trevor, WI and surrounding areas

Approved (Corporate)

In business since 1969

Free estimates

Warranties offered

At Custom Installations, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote!

Brava Roof Installment
Brava
Cedar Shake Roof
Cedar Shake Roof
Copper Valley

+8

Response time3 days
12 neighbors recently requested a quote
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FAQs for natural slate roofing repair projects in Trevor, WI

If more than 30% of your slate roof is damaged, it's time to consider a full replacement. This will prevent further deterioration and avoid costly recurring repairs. A professional slate inspection (costing between $130 and $360) can confirm whether repairs are sufficient or if a full roof replacement is the better option.

A slate roof can last anywhere from 60 to 150 years, depending on factors like installation quality, regular maintenance and repairs, and local weather conditions. Compared to materials like clay and concrete, which often last around 50 years, a well-maintained slate roof offers superior longevity, durability, and long-lasting aesthetic appeal.

Yes, you can use temporary patch solutions, such as roofing cement or patchwork, to provide immediate relief for minor leaks or underlayment issues observed from inside your home. However, these provisional fixes do not replace the need for a permanent, professional exterior repair, which is necessary to ensure the long-term integrity and weather resistance of your slate roof.

The Trevor, WI homeowners’ guide to natural slate roofing repairs

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