Business Details
Trusted Chicago Roofing & General Contractors Since 1885
Founded in 1885 by Philip Allendorfer, our company has grown into a fifth-generation family-owned business dedicated to excellence in roofing and construction. We specialize in residential and commercial roof repair, installation, and maintenance while offering comprehensive general contracting services. With over 130 years of experience, we maintain an A+ rating with the Better Business Bureau and are proud members of the National Roofing Contractors Association and Chicago Roofing Contractors Association. Our team of professionals uses only the highest-quality materials and stays current with the latest industry techniques. We are committed to delivering exceptional service, as evidenced by our numerous long-term client relationships and testimonials praising our work ethic and results.As a veteran-owned business, we uphold the values of integrity, reliability, and accountability in every project we undertake. Our track record includes historic restorations, luxury home renovations, and commercial construction across Chicago and the surrounding areas. We stand behind our work with comprehensive warranties and a promise to complete every job correctly the first time. Our dedication to community extends to charitable contributions and pro bono work for local organizations. This legacy of trust and craftsmanship continues to define our approach to every client interaction.
Services
Roof Repair
Roof Installation
General Contracting
Chimney Repairs
Rooftop Patios
Highlights and features
- We offer 130+ years of combined family expertise in roofing and construction
- Our team maintains an A+ rating with the Better Business Bureau
- We use only highest-quality materials with comprehensive warranties
- Our crews provide daily cleanup exceeding industry standards
- We are veteran-owned with demonstrated community commitment
Associations and certifications
- Better Business Bureau
- National Roofing Contractors Association
- Chicago Roofing Contractors Association
What people say
Excellent work
Professional crews
Kept premises cleaner
Quality materials
Timely completion
Services
Roof Repair
Our roof repair services address all types of roofing issues for residential and commercial properties. We specialize in emergency leak repairs, shingle replacement, flashing restoration, and ventilation system improvements. Using premium materials and modern techniques, our certified technicians ensure lasting solutions that prevent water damage and extend roof lifespan while maintaining daily cleanup standards exceeding industry norms.
Roof Installation
We provide complete roof replacement and new installation services for all property types. Our offerings include asphalt shingles, metal roofing, slate systems, and custom sheet metal work. Each project receives a thorough structural assessment and personalized material selection guidance. Our team ensures proper installation of underlayment, flashing, and drainage systems to meet current building codes and manufacturer specifications.
General Contracting
Our full-service general contracting covers residential and commercial construction projects of all scales. From kitchen renovations to new building construction, we manage masonry, tuckpointing, window replacement, and outdoor living spaces. Our experienced project managers coordinate all phases while maintaining strict quality control and adherence to timelines and budgets.
Chimney Repairs
We offer comprehensive chimney restoration and repair solutions including brickwork, crown replacement, and flashing system upgrades. Our specialists address water infiltration issues, structural damage, and code compliance concerns using traditional masonry techniques combined with modern waterproofing technologies to ensure lasting performance and aesthetic appeal.
Rooftop Patios
Our rooftop patio construction creates functional outdoor living areas with durable hardscaping materials and proper drainage systems. We handle structural assessments, waterproofing membrane installation, and custom design elements while ensuring compliance with local building regulations and maintaining seamless integration with existing roof systems.
People
Brian L. Allendorfer Jr.
President
Fifth-generation leader with over 30 years in the construction industry, maintaining family legacy of quality. Holds Illinois Unlimited Roofing License #104-015740, focusing on client satisfaction and technical innovation while preserving traditional craftsmanship values through modern projects.
Questions
What areas do you service?
We serve Chicago, North Shore communities, Chicagoland suburbs, and select Milwaukee projects for both residential and commercial clients.
Do you offer free estimates?
Yes, we provide no-obligation free estimates for all roofing and construction projects through our online form or phone consultation.
Are you licensed and insured?
We maintain Illinois Unlimited Roofing License #104-015740 and carry full liability insurance with bonding for all projects.
What roof issues require replacement?
Signs include curling shingles, missing granules, sagging sections, and persistent leaks. Our experts assess whether repairs suffice or replacement is needed.
Do you handle insurance claims?
Yes, we assist with insurance documentation and claims processing for storm damage and other covered roofing issues.
What warranties do you offer?
We provide comprehensive warranties covering both materials and workmanship, with specific terms detailed in your project estimate.
Reviews (7)
Dave R.
Jan 28, 2022
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This company did a demo/buildout for me and my ex wife. A new master bedroom with all the extras, walk in shower with seating for 3, toilet, a bidet, double sinks, mirrors everywhere, and even a urinal. The room turned out awesome! Unfortunately the marriage went to shit. Now I enjoy the room with whoever I please, whenever I please. Thanks for the great room, it's pretty much all I have left. I love women and they seem to love me and my master bedroom!
Noah J.
Oct 21, 2021
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Great company. They got my budget down perfectly and had excellent service. Thanks to your team, glad I found you guys!
Jessica S.
Oct 01, 2021
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I used Brian Allendorfer Company to replace two HVAC units in my business. I went with them after receiving quotes from two other companies. Brian Allendorfer Company's quote was the most reasonable and the staff, in my experience was the most professional. My contact was Scott who was knowledgeable, polite, and always available to answer questions and concerns. He made the experience comfortable from start to finish. I am very happy with the work that Brian Allendorfer Company provided and plan to use them again for future needs.
Stephen P.
May 25, 2021
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As a Landscape Architect, I have been working with Brian Allendorfer Company, Inc. for over 5 years on a variety of high-end custom projects including roof decks, pergolas, decks, privacy screens and more. Not only do I recommend them to my clients, I have also hired them for my own home. Brian's extensive expertise in everything roofing blended with Scott's highly skilled craftsmanship in construction makes for a perfect combination.
Kristin Boszhardt
May 24, 2021
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We were very pleased with all the outdoor construction work that was done by the team at Brian Allendorfer Company! Everyone was very professional and the attention to detail was especially wonderful! We had a back cedar deck built along with a pergola and it looks great! We receive so may compliments! They also installed our new windows and siding! All looks great! We would absolutely recommend!
Charlie R.
May 12, 2021
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I have worked with Brian Allendorfwr for 20 years. He put a new flat roof on a Bldg downtown for me. He rebuilt the entire inside of a new hone which was falling apart after the builder went bankrupt and every day the home was immaculate. Just replaced 11 Pella windows amd everything is perfect. And again, immaculate Yoo their departure. Thank you Brian! Charlie
Diane Thomas
May 07, 2021
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Brian Allendorfer is a great company. We used them several times at our condo for projects including maintaining our roof, waterproofing the outside of our building & fixing leaking pipes. Brian is very knowledgeable & I highly recommend them to anyone who wants a good job done on time, with polite, clean & a hardworking team.
