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Business ProfileRoofers in Roseville, California

Bob Jahn's Roofing LLC

Bob Jahn's Roofing LLC

Bob Jahn's Roofing is a Roseville roofing contractor serving residential and commercial projects across Greater Sacramento. Its commercial work includes apartments, churches and strip malls.

Last Updated October 2, 2026.

Business Highlights
  • Family-owned and operated.
  • It says it has a certified in-house roofing installation team and uses no subcontractors.
  • It lists roofing certifications with Owens Corning, CertainTeed and GAF.
  • It identifies itself as an Owens Corning Roofing Platinum Preferred Contractor in Roseville.
  • It offers a 10-year workmanship and labor warranty for roofing projects.
  • It says all of its shingle options are backed by a 50-year warranty.
  • It says it is YGrene Certified and fully licensed with the California State License Board.

Service Area

Roseville, Rocklin, Lincoln, Loomis, Granite Bay, Sacramento, Rancho Cordova, Citrus Heights, Carmichael, Folsom, El Dorado Hills, Placerville, Auburn and Colfax.

Active Business Listing

Bob Jahn's Roofing LLC is one of 8 roofers ProsGrade lists in Roseville, California.

Active
Public local listing
Listing details

7 services listed, including Residential roofing, Commercial roofing and New roofs, re-roofing and replacements. Open 24 hours, 7 days a week. Rated 4.5 from 115 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Bob Jahn's Roofing LLC compares with the other 7 roofers on ProsGrade in Roseville, using public Google ratings and review counts.

  • One of 8 Roseville roofers on ProsGrade.

Services Covered

7 services
  • Residential roofingsteel and composite materials; textures and color combinations
  • Commercial roofingPVC and TPO single-ply membranes; standing-seam metal
  • New roofs, re-roofing and replacements
  • Roof repairsleaking-roof and dry-rot repairs
  • Roof inspectionshome-buying inspections
  • Roof maintenance plans
  • Slate and tile roofing

Reviews

What customers say

Customers describe clear communication and straightforward guidance during roofing work. They also praise professional, tidy crews; one customer notes Randy's morning check-ins and the team's cleanup.

Customer Reviews

Keeley O'Farrell

Simply AMAZING from start to finish. Randy and his team are the best! He was very informative and answered all our questions during our first meeting. He was very straightforward and cared about our needs, which was refreshing after dealing with other roofing companies. He took the time to walk around the house and explain what the process entailed and what might need a little extra work. He came out every morning to check in, and his team did great work and took the time to clean up properly. Great communication through the whole process! We are very happy with our new roof and our overall experience.
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Nick Lofas

Extremely happy with the re-roof and dry rot repair done by Randy and his team. My 100 year old house looks so good. Price was very fair compared to other contractors in the area. Went out of there way to make my wife and I happy, we ended up replacing all of facia boards and so happy we did so. Randy and his team are great at there jobs and made the whole process seamless and easy.
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Tom Yager

Bob Jahn's Roofing did an excellent job on our new roof from start to finish. The initial meeting with Ryan allowed us to get an understanding of current product offerings and insights along with discussions about what may best suit our needs. No high- pressure sales, just a frank discussion about our needs and things we should consider. After deciding on the specific roofing material Ryan was able to provide locations where the product was installed that allowed us to see the different styles and colors that helped inform our final decision. Communications from the office for scheduling tear-off, installation, and inspections was great. The crews were very professional, on time and kept the job site clean. After installation support was excellent as well. I highly recommend Jahn's Roofing to anyone needing roofing services at competitive pricing. They are professional in every respect, and a pleasure to work with.
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Max Salz

I can highly recommend Bob Jahn’s roofing. We had to replace our decomposed wood shingle roof and it was quite a complicated project since it’s a halfplex and the neighbor did not want to replace her roof even though it is in the same bad condition. Nevertheless, Ryan came out to provide a very competitive quote and we discussed several options how to handle the challenge! He was handling everything from discussing the quote, being there during the re-roofing and doing the final walkthrough. I love the ”one face to the customer” approach from Bob’s team, it gives you a very good feeling. The re-roofing itself went very fast and Abraham’s team did an amazing job! In just two days they installed the OSB boards and high quality shingles on our 4500 sqft roof. They did not leave one piece of trash/debris afterwards. All in all a very good experience, competitive pricing, 10 year labor warranty and good communication (thanks to Melissa and Tiffany from the office!). I hope that we will never ever have to replace our roof – but if so, I’d contact Bob Jahn again.
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Kevin C

Roof and gutter project went perfect! From day one everyone at Bob Jahn's that I interacted with was very professional and able to answer any questions I had, the lead on my project Ryan was great. Their knowledge and straightforward way made it an easy choice. I had 2 roofing companies no-show their appointment to give me an estimate. 1 who came in at double what I had in mind for a roof and 1 who walked the roof took notes but wanted me to wait almost 3 weeks to hear back from their specialist to walk me through materials and warranties and starting a quote. Easy choice, Bob Jahn's didn't come with any gimmicks or sales pitch. Just a straight-up here's what we can do for you and here's how we'd do it plus references. Communication on scheduling and rain delays was great. The crew showed up early worked fast and clean from the teardown to the install. Now to fix up the siding/trim, paint and complete the refresh on my exterior.
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Frequently Asked Questions

What happens when Bob Jahn's Roofing replaces a roof?

The old roof is removed and checked for wood rot, while nearby plants and shrubs are protected.

Does Bob Jahn's Roofing offer financing?

Financing options are available through several partner institutions.