Business Details
50+ Years
experience
Trusted Roofing Services in Concord, CA
Mortensen Roofing has been serving residential clients in the San Francisco East Bay area since 1962. Founded by Bill Mortensen and now operated by his son John, our company specializes in cedar shakes, composition shingles, and concrete tile roofing solutions. With over five decades of combined experience, we prioritize customer satisfaction through transparent communication and quality craftsmanship. Our team of 4-7 professionals completes most roof installations within 3-5 days while maintaining strict attention to detail during every project phase.From initial inspections to final clean-up, we ensure minimal disruption to homeowners while delivering durable roofing systems that protect against extreme weather conditions. Our commitment to excellence extends to gutter installations, skylight replacements, and comprehensive roof maintenance services tailored to local climate challenges.
Services
Roof Installations
Gutter Installation
Roof Inspections
Roof Repairs
Skylight Installation
Details
- Year established: 1962
Highlights and features
- Family-owned business with 60+ years of combined industry experience
- Free pre-roofing consultations and detailed project estimates
- Licensed and insured roofing professionals with proven expertise
- Complete job cleanup including magnetic nail sweeping services
- Specialized in cedar shakes, composition shingles, and concrete tiles
Services
Roof Installations
Our professional roof installations combine quality materials with expert craftsmanship to protect homes from weather damage. We complete most residential projects within 3-5 days using 4-7 person crews. The process includes old roof removal, decking inspection, ice shield installation, and premium shingle application with proper ventilation systems.
Gutter Installation
We install durable gutter systems that protect foundations from water damage using seamless aluminum materials. Our installations include on-site gutter forming to eliminate unnecessary seams and proper sizing with 6-inch gutters and 4-inch downspouts. We ensure proper slope and drainage while maintaining aesthetic integration with existing architecture.
Roof Inspections
Our comprehensive roof inspections identify potential issues before they become major problems. We examine shingle condition, flashing integrity, and ventilation systems to detect early signs of wear or damage. Regular inspections help prevent costly repairs by addressing issues like missing shingles, ice dam formation, and flashing deterioration proactively.
Roof Repairs
We provide timely repairs for all roofing materials including shingles, tiles, and cedar shakes. Our services address leaks, storm damage, and general wear while maintaining roof system integrity. We use matching materials and proper sealing techniques to ensure watertight repairs that extend roof lifespan and maintain structural protection.
Skylight Installation
Our skylight installations enhance natural lighting while maintaining roof waterproofing. We install both traditional skylights and modern sun tunnels with proper flashing and sealing systems. The process includes precise roof cutting, waterproof membrane installation, and secure unit mounting to prevent leaks while maximizing light transmission.
People
Bill Mortensen
Founder
Bill Mortensen established the company in 1962, building a reputation for fair business practices and quality craftsmanship. He operated the company for 35 years before passing leadership to his son John. His commitment to customer satisfaction and professional integrity remains the foundation of our company values.
John Mortensen
Owner/Operator
John Mortensen has worked in the roofing industry for over 40 years, learning from his father Bill. He has continued the family tradition of quality service since taking over in 1997. His hands-on experience with cedar shakes, composition shingles, and concrete tiles ensures expert guidance for every roofing project.
Questions
What areas do you service?
We serve all of Contra Costa County and the San Francisco East Bay area.
How long does a typical roof installation take?
Most residential roof installations are completed within 3-5 days by our professional crews.
Do you offer free estimates?
Yes, we provide free pre-roofing consultations and detailed project estimates.
What materials do you work with?
We specialize in cedar shakes, composition shingles, and concrete tile roofing systems.
Are you licensed and insured?
Yes, we are a fully licensed and insured roofing contractor.
What additional services do you offer?
We provide gutter installations, roof inspections, skylight replacements, and repair services.
Reviews (2)
Michael Anon
Jun 23, 2021
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From the estimate forward, I found working with the owner, John Mortensen, to be easy and professional. His bid was clearly the best I received. His crew, especially the supervisor, Humberto were skilled, professional, friendly, and helpful. Humbertos entire attitude was we will make it right. The crew thoroughly cleaned the premises at the end of each day. The roof looks great, and the repair work they had to do (replacing a 35 year old roof) was done quickly and, again, professionally. Im not prone to writing glowing reviews, but I was, quite frankly, thoroughly impressed. Roof replacement
William Patterson
May 12, 2012
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Mortensen Roofing has repaired my old flat top roof and installed new gutters. He is prompt and very friendly. Will work with any schedule you have and is always able to fix problems. We had a drain problem with the roof and his idea to correct the problem has worked great...especially with some of these heavy rains. John is the best!!!
