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Why Grandmark ROOFING

Proven Record

Grandmark Roofing is the company to call for all your roofing needs. We have over two decades of experience, and we’re dedicated to helping homeowners protect what matters most. We also handle solar panel installations, removal and reinstallation. Our workmanship is the best in the business, and we always use quality materials. So if the roof only needs to be repaired, our professionals have the expertise to solve the problem quickly and efficiently. Contact us today for a free estimate!

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Grandmark Roofing - Your Trusted Roofing Company

We’re licensed, insured, and have a proven track record of quality roofing installation and repair.

Roofing Repair

Roofing Repairs

Roofers Near

Roof Replacements

Metal Roofing

Metal Roofs

Roofing Installation

Existing Solar? No Problem

Roof Installation

Roofing & Gutters

Dry Rot & Framing

Dry Rot & Framing

Why Grandmark Roofing

Financing Available - No Credit Required Programs!

At Grandmark Roofing we’ve established ourselves as the local  contractors of choice for the areas around our five locations. Since we started in this business 25 years ago, we’ve constantly sought to bring the benefits of our service to as wide a clientele as possible. Today, we can say with pride that we offer superb roofing solutions to a large swath of the Golden State. Whether you need commercial or residential roofing work, gutter repair or installation, or attic insulation, we’re the trusted professionals you can count on.

Areas We Serve  | Browse By City

  • San Jose, CA
  • Bay Area, CA
  • Bay Area, CA
  • San Francisco, CA    

Professional Roofing Services

Every home is made of four primary walls, a strong foundation, and a reliable roof. The roof does not only shelter you, but it completes your home, and while living under it, you are trusting it with your lives. Everyone living under the one roof, you, your parents, your kids, and everyone is counting on the top to shelter you and keep you safe.

When it comes to a roof, you cannot compromise on the quality of the material used or anything else. It would be best if you always had everything perfect so your home can be the best and keep you safe, warm, and in good shape. Faulty material or faulty architecture can lead to some severe disasters and put everyone at risk.

Type or Roofs we install

  • Asphalt Shingles
  • Tile Roofs
  • Synthetic Composite
  • Slate Roofing
  • Flat Roofs
  • TPO Membranes
  • PVC Membranes

When repairs aren’t sufficient to fix your previous roofing system, it is time to get your home re-roofed. This ensures that your home is protected and proficient at guarding you against climatic adversities while making your home look beautiful.
Why Choose Grandmark Roofing as your Roofer?
Grandmark has been in the roofing business since 1995. That is beyond two decades of extensive experience, which you can harness to get your roof solutions designed according to your exact needs. Our experience has made us the ultimate pros in choosing the right materials, styles and providing superior craftsmanship to build your roofs that withstand climatic adversities with great endurance.

To determine if a roof is in good shape, Grandmark Roofing recommends an in-depth roof inspection.
The inspection can show the roofing membrane’s current estate and how to ensure the roof will perform correctly and for how long. Our roof inspection reports come with video. There is no better way to help our customers understand what is going on with their roof and how to fix it when needed.
Grandmark Roofing provides pricing to correct the problems within 24 hrs in most cases.

There are two ways to get a roofing permit in the state of California. A permit can be pulled as a homeowner or as a contractor. As a homeowner, you certify that you will perform the work yourself. Suppose the homeowner decides to hire someone to help. California law requires that the person providing employment comply with the employment laws. Workmen’s compensation insurance and payroll taxes are the most significant liabilities.
Contractors take all the liability and usually have all the required insurances to comply with the law.
A roofing permit must be issued on a roof when 50% of the roof needs to be replaced.


When replacing a roof or repairing a roof, it is the perfect time to update the gutter systems. Gutters are easier to install when the roof is removed, and it is evident where the attachment location will perform best.
Usually, installing a gutter on an existing roof causes roof damages. We have seen gutters installed lower than the channels need to be, causing water to cause dry rot to the fascia boards.

This are the average roofing cost in California:

  1. Roof Removal & Disposal $1.50 per ft
  2. Plywood installation $2.00 per ft
  3. Roof installation $3.25 per ft
  4. Roofing material 30 years $1.75 per ft
  5. Roofing material 50 years $ 2.75per ft
  6. Premium shingle roof materials $3.00 – $7.00 per ft

Note that quality installers’ prices differ from one roofing company to another. 

California has very extreme weather.
It is recommended to have roof maintenance every two years.
Collected debris can cause roofing material deterioration and cause roof leaks.

having a professional roofer check on your roof will ensure you prevent costly damages to your home or business. The roofing manufacturer require roof maintenance for them to endorse a warranty claim.

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Financing Available - No Credit Required Programs!