We Protect Homes & Businesses, Keep Them Comfortable & Save Our Customers Money!


  • McKay is great.

    thumb Kathy Kaiser
    October 6, 2022

    This company is a very good company I would approve it at any time for anyone to use them. The team that will do your roof is very qualified dependable hard working experienced young men. This company will go over and beyond to make sure your expectations are granted in all ways possible. Thank you very much for doing my roof and gutters Grand Mark service is the way to go.

    thumb Rodney Bryant
    October 6, 2022
  • He did fixed what the Amazon techs ruined’ he saved the day! And was professional and quick! I appreciated all his help. Thank you Tony!

    thumb Isabella Cast
    September 20, 2022

    The company was very professional and the crew was on time. They repaired a roof leak. I'll know if the leak has been fixed upon the next rainfall. The only con was there is a 3% credit/debit card fee that wasn't verbally explained until I received the invoice.

    thumb Elton Brown
    September 20, 2022



Our roofing company is family owned and operated, and we have been in this business for over 25 years. Our roofing services are second to none, and we are proud to be one of the most reputable roofing companies in Sacramento area. We offer roof installation, roof repair, roof inspection, and roof maintenance services, and our team of experienced Sacramento roofers are committed to providing the highest quality service possible. We always operate with integrity and service, and we are dedicated to providing our customers with the best possible experience. If you need any roofing, air conditioning and solar services, please don't hesitate to contact us. We would be happy to help you with all of your Sacramento roofing needs.

Commercial Roof Installation Fresno CA


At Grandmark Service Company, we understand that your roof is one of the most important parts of your home or business. That's why we take roof installation seriously, and we only use the best materials and workmanship to ensure that your roof will stand the test of time. Whether you need a new asphalt shingle roof or a flat commercial roof, we can help. We'll work with you to choose the right roof for your needs and budget, and then we'll install it quickly and professionally. So if you're in the market for a new roof, give us a call today. We'll be happy to answer any questions you have and get started on your project right away.


roofing repairs are one of the most commonly requested services in the Sacramento area. We are experienced in repairing all types of roofs, and we also offer emergency roofing services. If your roof has been damaged by a storm or other event, we can provide tarping services to prevent further damage. We understand that roofing problems can be stressful, and we will work quickly and efficiently to get your roof repaired as soon as possible. Contact us today to schedule a roofing repair consultation.


At Grandmark Service Company, we provide commercial roofing services to all the business owners in the area. We are experts in flat roofs that are usually very large. We also understand that the business must go on and we have procedures to handle any unforeseen roofing issue that may arise. We have a team of experienced and certified roofers who are always ready to handle any roofing problem you may have. We also offer a wide range of roofing products and services that are designed to meet the specific needs of your business. Contact us today to learn more about our commercial roofing services and how we can help you protect your investment.


Roofing materials are an important consideration when selecting a roof for your home or business. There are many different types of roofing materials available, each with its own benefits and drawbacks. Asphalt shingles are one of the most popular roofing materials, but they are not suitable for all applications. Wood shakes and clay tiles are two other popular choices, but they are not as durable as asphalt shingles. Metal roofs are also an option, but they can be very expensive. When selecting a roofing material, it is important to consider the climate, the type of structure, and the budget.

commercial roofing Fresno
Asphalt SHingles


Asphalt shingles are a very popular roofing option, particularly in Sacramento due to their durability and resistance to the elements. Asphalt shingles are made from a fiberglass or organic mat that is covered with asphalt and then coated with mineral granules. This type of roofing material is very economical and can last up to 50 years with proper maintenance. Asphalt shingles are available in a variety of colors and styles to suit any home's exterior, making them a popular choice for homeowners. If you are considering asphalt shingles for your roof, be sure to consult with a professional roofer to ensure that they are the best option for your home.


Single ply roofing membranes are a popular choice for commercial buildings, thanks to their durability and energy efficiency. When properly installed, these membranes can last for up to 35 years. However, flat roofs are very delicate, and improper drainage can lead to serious damage. That's why it's so important to work with a professional roofing contractor who understands the challenges of flat roofs. At our company, we specialize in the installation of single ply roofing membranes. We use heat-welded seams to create a watertight seal, and we take care to properly drain the roof to prevent any damage. Whether you're building a new commercial property or retrofitting an existing one, we can help you choose the right roofing solution for your needs. Give us a call today to learn more about our Single Ply Roofing Membranes.


Metal roofs are a great option for Sacramento homeowners because they offer many benefits over traditional composition shingles. Metal roofs are more durable and last longer, meaning you won't have to replace your roof as often. They're also fire resistant and reflect heat, helping to keep your home cooler in the summer. Metal roofs also hold up better in areas with high winds and snow loads, making them a great choice for homes in the mountains. While metal roofs may have a higher initial cost than composition shingles, their long-term durability and energy savings make them a wise investment. If you're thinking about replacing your roof, be sure to consider a metal roof from Grandmark Service Company.


When choosing a licensed roofing contractor in Sacramento, CA, it's important to consider the scope of your project. Are you looking for a simple repair, or are you planning a complete roof replacement? Once you've determined the scope of work, you can begin researching licensed roofing contractors in Sacramento. The City of Sacramento requires all roofing contractors to be licensed and insured, so you can be confident that your chosen contractor will meet all city requirements. When meeting with potential contractors, be sure to ask about their experience with similar projects. Once you've found a licensed roofing contractor that you feel comfortable with, you can begin discussing your project in detail. Your chosen contractor will be able to provide you with a written estimate of the cost of your project, as well as an estimated timeline for completion. With a licensed and experienced roofing contractor on your side, you can rest assured that your roofing project will be completed in a professional manner.


Cool Roofs are roofs that have been specifically designed to reflect more sunlight and absorb less heat than a standard roof. This helps to keep your building cooler in the summer, which can save you money on air conditioning costs. Cool Roofs also help to reduce the "urban heat island" effect, where cities are significantly warmer than the surrounding countryside. This is because dark surfaces like asphalt and concrete absorb heat from the sun, while light-colored surfaces reflect it. By installing a Cool Roof, you can help make your home a little bit cooler and more comfortable for everyone.


Roof financing is a type of loan that allows homeowners to borrowing money to pay for roofing repairs or replacement. The interest rate on a roof financing loan is typically higher than a traditional home equity loan, but the terms are usually much shorter. This means that you will have to make higher monthly payments, but you will not be paying interest on the loan for as long of a period of time. There are several factors that can influence the interest rate on a roof financing loan, including the type of roofing material you choose, the size of the project, and your credit score. You can also choose to finance your roofing project through a home equity line of credit (HELOC). With a HELOC, you will only be required to pay interest on the amount of money you actually borrow, making it a more affordable option. However, roof financing through a HELOC can be more difficult to qualify for if you have poor credit. Contact your local roofing contractor to learn more about your roof financing options.


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Serving Fresno & Surrounding areas.