TESTIMONIALS

5 star review  Could not be happier with the professional, sharp-looking job and clear expectations. McKay evaluated the area where we needed guttering, an area another company had said couldn’t be remedied because... read more

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5 star review  Dealt with Carlos. He was very informative and friendly from day 1. He was able to see me right away and I loved that he came prepared with a slide... read more

thumb Anna Pimentel

5 star review  I want to state I did not know anyone at Grandmark before I started the process. Justin was communicative during the whole process of the roof installation. His crew was... read more

thumb Lloyd Pratt

We have provided excellent services to thousands of customers, and we’d love for you to be able to experience the quality of our technicians!

Professionals

Our team has extensive professional training and a solid skill set to handle your project.

Locally Owned

We are a local, family owned business and serve the greater Central and Northern California area.

100% Satisfaction

We are professionals and proud of our work. If you aren’t satisfied, let us know and we will make it right!

20,000+ Satisfied Customers

We have provided excellent services to thousands of customers, and we’d love for you to be able to experience the quality of our technicians!

Professionals

Our team has extensive professional training and a solid skill set to handle your project.

Locally Owned

We are a local, family owned business and serve the greater Central and Northern California area.

100% Satisfaction

We are professionals and proud of our work. If you aren’t satisfied, let us know and we will make it right!

Financing Available – No Credit Required Programs!