Top-rated flat, foam, or single ply roofing installers and replacers.

Get matched with top flat, foam, or single ply roofing installers and replacers in Watertown, WI

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Flat, foam, or single ply roofing installers and replacers in Watertown - Updated Nov 2026

Avatar for Ridge Top Exteriors, Inc.
Ridge Top Exteriors, Inc.
4.4(
443
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Watertown, WI and surrounding areas

Approved (Corporate)

In business since 2002

Free estimates

Warranties offered

"Roof replacement was done over two days - the crew was polite and professional, cleaned up everything, and the final product looks fantastic. My contact person at Ridge Top walked me through the process from the first meeting to project completion and managed my expectations, keeping me up to date on everything. I very much recommend this company for roofing!"
Before
After
Platinum Premier
30 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Weather Pro Exteriors Inc.
Weather Pro Exteriors Inc.
4.1(
33
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Watertown, WI and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"I saw their notice regarding free estimate for attic insulation at the  Home/Garden show.  I left my information and they contacted me about a week or two later.  We scheduled an appointment.   Jason came out and inspected everything, we discussed options and he gave me estimates for both.  I was going to be out of town for a while and he said he would extend the home show discount until after i got back.  I scheduled the installation with Tina - she checked back with me (both email and phone).   John and Nick showed up a little late on the install day, as their previous job ran longer than expected.  Both Nick and John were very professional and personable.  They explained what they were going to do and let me view the work in progress, as i was curious.  They answered all my questions and did a great job in cleanup - even vacuuming the grass :).   I am pleased with the work and am looking forward to the savings the added insulation will provide."
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 Diaz Roofing Co LLC
Diaz Roofing Co LLC
4.6(
45
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Watertown, WI and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Great crew came to job site as scheduled got the work completed extremely fast with a good group of guys one day turnover extremely pleased with the quality of work and high-quality materials they used and fair pricing. I will be recommending these guys to other people."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time10 mins
Response rate100%
5 neighbors recently requested a quote
Avatar for Windlickers, LLC
Windlickers, LLC
4.8(
25
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Watertown, WI and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Mike from Windlickers is one of the most honest people I have ever met. He helped me navigate the roof process and never once seemed annoyed or pushy when it came to signing the contract or on what I should install. Instead of bashing competitors like so many others do he kept it straight to the facts of what HE would be doing. All around great guy and I will be recommending him to everyone I possibly can that needs any work done. He went out of his way to help me submit my original roof for warranty because of defective shingles. The one guy who went on that roof and let me know what I had and that I should submit a claim, right there is shows me he actually cared. 100% RECOMMEND!"
Northgate Burnt Sienna
Three Tab full tear off
Brookfield Certainteed Flintlastic
brookfield Low Slope
Nashotah Cedar Conversion

+36

Response time10 mins
Response rate100%
1 neighbors recently requested a quote
Avatar for Bulldog Builders, LLC
Bulldog Builders, LLC
4.8(
69
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Watertown, WI and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"We had contacted Mark from Bulldog Builders for a quote on a roof replacement. Mark came out in a very reasonable amount of time, was very knowledgeable, helpful, professional. Took dimensions of roof and gave us a quote on job. We decided to go with Bulldog builders for this work and a are very pleaded we did. All Materials were ordered and the crew arrived on time and did a outstanding job. Mark then called to make sure we were happy with the work done, I would recommend Bulldog Builders to anyone!!! Great Job to all!!! Keep up the good Work!!! :)"
exterior
Master bath
Kitchen
Shower
Fireplace

+81

Response time2 days
379 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Infinity Exteriors
Infinity Exteriors
4.9(
21
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Watertown, WI and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

"I have requested couple of different quotes to replace the roof on my garage. I decided to go with Infinity Exteriors. Logan Rezash worked with me who gave me the best deal. He was very professional and easy to talk to and explained in full details what they will provide me with my project. The materials and the warranty on the project that works for my budget. They kept me informed of the status of the project from the start to the finish. Their team that worked on the job was very polite and fast. They did an excellent job. They cleaned the yard and twice doubled checked for any loose nails around the garage. If you have a project to be done, I would recommend Infinity for your project. Dragica Miladinovic"
LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide

+16

Response time5 days
Recommended by95%of homeowners
Avatar for Guardian Professional Contracting Services, Inc.
Guardian Professional Contracting Services, Inc.
3.3(
152
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Watertown, WI and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"I cannot say enough positive about Guardian. From the very beginning they treated us like we were family. Or even better, friends. They listened to our needs and answered any questions I had. We will absolutely recommend them."
Siding
Windows & Doors
Siding
Siding
Response time9 hrs
Response rate100%
279 neighbors recently requested a quote
...
Showing 1-10 of 74
FAQs for flat, foam, or single ply roofing installation and replacement projects in Watertown, WI

Many roofing pros point to PVC as the top performer on flat roofs thanks to its tough seams and long-term waterproofing. A properly installed PVC membrane can last 30 years or more, resisting ponding water and harsh weather with ease. You will pay more up front than you would for EPDM, but the added durability often translates into fewer repairs and a lower cost per year of service.

Yes, a rubber roof is an environmentally friendly choice. Most rubber membranes contain recycled content and can reflect heat, which helps trim cooling bills in hot weather. Manufacturing has a lighter footprint than many traditional materials, and the long lifespan means fewer tear-offs headed to the landfill. If sustainability is a priority, ask your roofer about brands that carry third-party eco-certifications and confirm they meet local environmental standards.

The Watertown, WI homeowners’ guide to flat, foam, or single ply roofing installations and replacements

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