C&D Roofing and Restoration
Company Overview
Specializing in Flat Roofs. Our company is a licensed contractors for commercial, industrial, and residential roofing focusing on flat roofs, domed roofs, and low-sloped roll out or tar and gravel. We focus on eco-friendly restoration and enveloping of flat roofs for businesses and commercial properties featuring cool roofing options for flat and low-slope roofs. Flat roof systems we offer are less expensive than replacing a roof, promote energy efficiency and environmental sustainability. We offer labor warranties for up to 20 years and materials warranties that can last up to 50 years. Cool roofing is endorsed by the US Department of Energy and surpasses nearly every roof available. The 100% silicone and acrylic elastomeric system we use cools indoor spaces by as much as 35%, resulting in lower utility costs and reduced strain on public utilities. We have significant experience applying silicone ""cool"" roof systems to various facilities, such as warehouses, hospitals, churches, schools, and commercial establishments. We proudly serve clients such as LA Public Works, Archdiocese of Los Angeles, Los Angeles World Airports, Clay Lacy Aviation facilities in Van Nuys, along with Don Bosco Tech, Aquinas High School, Notre Dame High School, and Flintridge Sacred Heart Academy.
C&D Inc. began in the early 1980s, founded by Dean and Cecilia Tweedy. We are now a family-operated roofing contractor serving all of Southern California. Our specialization includes business, commercial, and industrial flat roof systems, featuring silicone and elastomeric cool roofing. We are also recognized by the Catholic Archdiocese and have partnered with more than 150 churches and schools across Southern California.
Dean grew up in Arcadia, CA launched his business in high school, painting apartments for his father after school hours and has since expanded to manage large-scale projects all over Southern California. Dean is a devoted member of the Carmelite order, a Knight of Columbus, recognized as an Archdiocesan approved contractor, and a Gaco Qualified Applicator.
Business Services
- Roof inspection
- Roof replacement
- Reroofing
Business Location & Hours
Mon: | 7:00 AM - 5:00 PM |
Tue: | 7:00 AM - 5:00 PM |
Wed: | 7:00 AM - 5:00 PM |
Thu: | 7:00 AM - 5:00 PM |
Fri: | 7:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Great Mom & Pop company. They have done amazing work for a commercial building in Eagle Rock, Los Angeles. Their price wasn't the absolute lowest of the 5 quotes we received, but there were 3 other companies that charged higher than them (one was double in price!). They communicate well and reply swiftly. They value customer service and look out for the customer.

We were in Alhambra, CA visiting our son during all the rains in January. Our son has an older home and it had 2 small leaks but these rains were so strong several more leaks appeared. I looked under Yelp for a roofing company. I chose C&D Roofing in Alhambra. Sean Tweedy answered and was so very helpful. He used a satellite image of the roof and gave us a quote. Price was lower than my son had been quoted when he bought. A great deal but our son could not do it at that time. We called Sean back and Sean told my husband exactly what to do for a patch on a flat roof. Sean helped us so much. This company is professional and true to their word. I highly recommend C&D Roofing to anyone. Thank you Sean so much!! You are awesome. C&D Roofing is the ONE to call first.

C & D did a fantastic job! Both father and son, Dean and Sean, were a pleasure to work with. They went above and beyond to make sure the roof was cleared and patched. The new silicone coating system looks beautiful.

My tar and gravel flat roof was in need of replacement and I wanted to go with a silicone roof instead. A longer lifespan, improved leak and crack resistance, improved elasticity, efficiency and reflectivity, made silicone my first choice over other roofing coatings and materials. Despite it being a costlier investment, this was going to be the protective layer on the costliest investment I've made thus far in my life, my home.
Enter C&D Roofing and Restoration. They came in at a very reasonable cost and I watched as their team tore off the old roofing materials, fixed the areas that needed repair, washed everything down, and then created my new roof, layer by layer. In addition, I also had them replace my aging dome skylight while they were up there. True professionals, Sean, Dean, and the C&D team (led by Pablo) made the process easy. They showed up on schedule day after day until the work was complete.
I've always been fascinated with the study of weather, and always look forward to the rare rainstorms in Los Angeles. Thanks to the quality work of C&D Roofing and Restoration, my enjoyment and relaxation at home during a rainstorm is completely free of the worry associated with leaks. The new skylight looks great and lets in more natural light. Also, on those hot sunny days, my home stays far cooler inside than ever before, thanks to the reflectivity of my new silicone roof.

Older home Flat Roof Azusa 1927 had damage leaks fixed roof redone best service NO LEAKS! Thank you for great customer service and great work let it pour!

The price was very reasonable compared to a couple other quotes I received. They also have a very good warranty. I felt comfortable knowing that they have specialized in flat roof repair for 40 years I believe. They also did a sealant around the sky lights which is where we get the most leaks. They were very patient with all my questions and reassured me with a lot of information because I really didn't know anything about roof repair. They were very kind on the phone and always prompt to respond to texts and emails. They used a drone to send me footage of the repairs which was very cool! All their workers were nice and helpful and respectful. I definitely recommend this company.

Highly Recommended!!! Dean Tweedy, and his son, Sean Tweedy, and their specialty 'cool roof' and patio deck replacement team (led by Pablo) delivered our new 'cool roof' and three (3) patio decks with speed and certainty. They provided a crew of five (5) to multi-task and get the job done in 2 weeks. They removed furniture from the patio decks, provided new decks and were extremely careful when relocating the furniture back to its original locations. The 'cool roof' 3 material phase installation was impressive to watch be put down....and the water test turned up roses!!! The roof is water-tight and so are the patio decks. Evidence of Quality Control. Added benefit - we did not have to remove our Solar Panels from the roof to replace the roof system. A significant cost and schedule savings. Call C&D - for a water tight roof at a reasonable price.

I spoke with Sean via the messaging system and he responded quickly. I told him my situation and he was more than helpful assisting me. Although he was not able to help me with my particular situation, he recommended someone that possibly could. In terms of professionalism, he had that in spades. I hope to be able to have him help me at one point.