J & J Roofing

★★★★☆ 4.4 / 5 (290)
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: 1485 Lincoln Ave, Pasadena, CA 91103
: (323) 913-4190
: http://www.jandjroofing.com

Company Overview

Our expertise lies in both residential and commercial roof installations, repairing existing roofs, providing roof coatings, ensuring preventive upkeep, customizing roofing solutions for various styles, including no-cost inspections and proposal estimates -- handled solely by our most skilled estimators and inspectors.

Our teams are highly skilled with years of expertise in various roofing systems - such as shingle, tile, slate, shake, TPO, coating systems, torch down, and Cool Roofing. We have also developed proven methods for sealing and strengthening roofs that withstand the test of time while maintaining the aesthetic of your roof and without costing a fortune. Our certifications reflect the quality of our materials and are eager to assist with your roofing requirements!

License number #761462 C-39 / Bonded / Manufacturer certified / YELP Verified / 30+ years Family Owned & Operated
J&J Roofing has proudly served the greater Los Angeles region as a family-owned and operated roofing company since we opened our doors.

Started by John Glass, and later joined by his sons, Matt and Mike, the company has grown into a reputable roofing company with a committed and knowledgeable staff. Our focus is on two main principles: transparency with our clients and ensuring quality craftsmanship without cutting corners. J&J Roofing aims to continue serving Los Angeles for as long as the sun shines and the rain pours.

Matt and Mike Glass are third-generation roofers with over 30 years of experience in the field. Their knowledge has made them recognized expert witnesses in roofing application matters. The day-to-day operations are run by the Glass family directly. If you don’t find them at the office, they are likely on-site at a roofing job or engaged with a client.

Business Services

  • Gutter installation
  • Gutter repair
  • Gutter replacement
  • Roof cleaning
  • Roof inspection
  • New roof installation
  • Roof repair
  • Roof replacement
  • Reroofing
  • Skylight installation
  • Skylight repair

Business Location & Hours



Mon:9:00 AM - 4:00 PM
Tue:9:00 AM - 4:00 PM
Wed:9:00 AM - 4:00 PM
Thu:9:00 AM - 4:00 PM
Fri:9:00 AM - 4:00 PM
Sat:Closed
Sun:Closed

Recommended Customer Reviews

Donald W.
★★★★★

Had a recent roof leak. J & J has helped us in the past and they came promptly when we called. They diagnosed the problem, and fixed it at a reasonable price.

D & D West LA

Andy H.
★★★★★

Good company, responsive by email and phone. Honest in their communications and they overcame unexpected problems on the roofing project. Most importantly, very happy with the final product.

Susan C.
★★★★☆

J & J does good work, and they are very nice. The primary issue is a very slow response time, but I understand that they are working on it.

Yvonne M.
★★★★★

Our experience with J&J has always been positive.
John Glass has a staff that is professional and efficient. We have found them to be honest and thorough. We have used them for 16 years to inspect and repair any areas fatigued from the high winds on our area.

Mike M.
★★★★★

Had the come out last week. Communication over the phone was a breeze. The guy was on time and polite. I highly recommend using J&J to anyone who needs roofing done. Will use them again! (Hopefully not too soon :D )

Tien Y.
★★★★★

J&J did a great job on my roof replacement. No fuss, answered my questions and as scheduled. I feel I got a great value for the workmanship, professionalism and friendliness I got for using them. They handled a sudden issue with their suppliers well and I have no reservations recommending J&J to friends and family who need roof work. I didn't get around to replacing the roof before the rainy season, so I expected the wait. It's a huge relief though not to worry about leaks whenever it rains.

Jeff F.
★★★★★

As an update I have them inspect our roof every year and they are not in a rush to do unneeded work. let us know in advance when things need to be replaced, do minor repairs when do inspection, etc. Class act. compared to most roofing companies they seem fair, trustworthy and honest

Jae C.
★☆☆☆☆

Do not recommend using their services at all.
Terrible and they don't take responsibility for their work.
Doesn't even look like they have knowledge in the roofing.
They connected my AC unit pipe angle wrong and caused a leak.
They denied it was their mistake but after I had to call a AC expert to check and confirm it was J&J's mistake and they agreed.
Below is the picture's and comments of the final work that J&J did from my new contractor.


roofing contractor had sealed, hot moped and roofed-in homeowners Gas/ Electric Rooftop Package Unit to its platform, completely against all building safety codes. This cased the unit to be unserviceable and unsafe to use Gas flex line sealed to roof, can cause fire. Unit not serviceable. Broken condensate pipe not able to be repaired due to roofing material.

12/7/17 1:08pm
I don't understand why you say we had damage.
Only the first building had the issue with the first roofer and they didn't even touch my unit side of the building.
I believe you guys already know what you guys did wrong and it shows on the comment from the new roofer i hired.
You guys also over sealed the AC and came back later (more then 6 month) to bring it down but already damaged a lot of AC unit's.
Also 3 experts come up and checked, they all said the same thing that the roofing you guys did was done improperly.
Any one will be able to tell how you guys work just looking at the 2 photo's.

Sassafras M.
★★★★★

These guys are totally professional and wonderful to work with. They fixed a leak in our roof two years ago and it never came back! Fair pricing, hard working, guarantees that make you feel totally safe, a fantastic company.

Yani G.
★★★★★

This is an awesome company. We used them back in 2011 to repair a significant part of our tile roof. Many companies suggested that we replace our original tile, but Mike said there was no reason to undertake a brand new roof (at a hefty price). He even told us that we could hold off on a small portion of the roof if we wanted to as it would hold up for another 5+ years and here we are 6 years later needing to replace that smaller portion...just as he said! Mike not only gave a truly reasonable estimate, but was also extremely knowledgeable and honest. Direct. Clear. No hidden agendas. We are huge fans of J & J Roofing!

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