Rated 5-Stars on Google and Yelp out of 150+ Reviews

Trusted Residential Roofer in Hillsborough, CA
Expert Roof Installation & Repairs

Reliable, Energy-Efficient, and Durable Roofing Solutions for Hillsborough Property Owners.

Reliable Roofing Solutions for Hillsborough Homeowners

Your roof is your home’s first line of defense against the elements. Whether you need roof repairs, a full replacement, or energy-efficient roofing solutions, Simmitri Inc. delivers top-quality craftsmanship with the latest roofing innovations.

✔️ 30+ Years of Experience in the roofing industry
✔️ GAF Master Elite® & Owens Corning Platinum Preferred Contractor
✔️ Tesla Solar Roof Certified Installer
✔️ 5-Star Rated on Google, Yelp, and BBB A+ Accredited
✔️ Energy-Efficient Roofing Solutions to Reduce Your Utility Bills

🔹 Limited-Time Offer: FREE Roof Inspection & Energy Audit 🔹

Residential Roofer Services in Hillsborough

Get Comprehensive Solutions Custom-Tailored For Your Home

At Simmitri Inc., we’re proud to power the future of Hillsborough by bringing solar energy directly to its residents. With a legacy spanning three generations, we’re dedicated to helping homeowners harness the abundant sunshine to create a greener, more sustainable community. Together, we can make a shining example of renewable energy adoption and eco-conscious living.

30-Year

Solar Panel Warranty

$0 Down

Solar Financing

25-Year

Inverter Warranty

30-Year

Solar Panel Warranty

Roof Installation & Replacement

A high-quality roof enhances your home’s curb appeal, protects against the elements, and improves energy efficiency. If your roof is 20+ years old, has frequent leaks, or shows visible wear, it’s time to upgrade.

✔️ New Roof Installations with High-Performance Shingles & Tiles
✔️ Tear-Off & Re-Roofing Services
✔️ Solar-Ready Roofing Systems for Future Energy Savings

Roof Repair Services

Don’t ignore minor roof damage—small leaks can turn into major repairs! We provide fast, reliable roof repairs to keep your home safe and dry.

✔️ Leak detection & repair
✔️ Shingle replacement for missing or cracked shingles
✔️ Storm & wind damage repair
✔️ Flashing and ventilation fixes

Roof Inspection & Maintenance

Don’t ignore minor roof damage—small leaks can turn into major repairs! We provide fast, reliable roof repairs to keep your home safe and dry.

✔️ Leak detection & repair
✔️ Shingle replacement for missing or cracked shingles
✔️ Storm & wind damage repair
✔️ Flashing and ventilation fixes

Energy-Efficient & Smart Roofing Solutions

Simmitri specializes in high-performance, solar-integrated roofing solutions:

✔️ Tesla Solar Roof & GAF Solar Shingles – Generate electricity while protecting your home.
✔️ Cool Roofing Technology – Reduces heat absorption, lowering AC costs.
✔️ Energy Star® Rated Shingles – Save on energy bills year-round.

    
 
 
       Posted on Google  
   
   Stephanie R.G. Edelman 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a great experience using Simmitri after a previous company went bankrupt. Simmitri folks were responsive, thoughtful and knowledgeable.
  
 
      Posted on Google  
   
   Andrea Goldsmith 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simmitri installed our Enphase solar panels and later our battery system. They did a terrific job.   Our system runs well after three years. They were good to work with. Their office helped us with the California document submission. We are pleased!
  
 
      Posted on Google  
   
   David Martinez 
 
 
 
 Trustindex verifies that the original source of the review is Google. After interviewing 3 solar companies I selected Simmiti for my dolar installation. The planning and submissions to PGE and SCCounty Building were done in a timely manner. The installation crew was superb. The inspector was highly impressed with the installation. Ana, my PM, stayed on all parties to get the final steps of approvals. I highly recommend Simmitri for your solar project. 9/12/2025 I just recently added 6 panels to my system (added e-car) and Pamela at Simmitri handled my project. Communication throughout the project was excellent and the crew, once again were FANTASTIC! Simmitri is a pleasure to work with.
  
 
      Posted on Google  
   
   Denise Tsang 
 
 
 
 Trustindex verifies that the original source of the review is Google. We can say that installing and working with Simmitri was a seamless experience. They did exactly as they say they would. The staff is amazing to work with, especially the Project Manager Pamela Rodriguez and the Sales Manager Lonnie Cory. The installation crew was fast, clean and friendly. All in all, a great experience working with them from the beginning... and continuing. We are so happy with our new system!
  
 
      Posted on Google  
   
   Ben Bartyzel 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simmitri Inc. roofers did an excellent roof replacement for me, they were on time and on budget.  I highly recommend this firm.
  
 
      Posted on Google  
   
   Jerry Suarez 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our project began in 2020 with the construction of our new home. When we were ready for our Solar installation, Jonathan walked us through every step of the way. The installation crew were fast, competent, and thorough. We couldn't have asked for a better experience!!
  
 
      Posted on Google  
   
   Lanard C 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great company....solar appointment was the best I have seen and very informative ...no pressure and very polite approach focusing on my interests and needs.  System was installed and it was a great experience...
  
 
      Posted on Google  
   
   Dylan Nunn 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great experience!
  
 
      Posted on Google  
   
   Steve McShane 
 
 
 
 Trustindex verifies that the original source of the review is Google. Wow! The service and attention to detail that Jonathan and his team provides is astounding. We had a complicated project with a complicated team and every question was answered in a timely fashion. Every one of the reviews I read is spot on. Thank you, Simmitri.

Why Choose Simmitri as Your Hillsborough Residential Roofing Contractor?

When searching for a trusted residential roofer near Hillsborough, CA, homeowners need a company that combines expertise, quality materials, and customer-focused service. Simmitri Inc. delivers on all fronts.

Local Experts Who Understand Hillsborough’s Climate & Roofing Needs

Experiences over 260 sunny days per year, which can wear down roofing materials over time.
Our energy-efficient cool roofing options reduce heat absorption, helping homeowners save up to 15% on cooling costs (DOE).
We install Class 4 impact-resistant roofing to withstand occasional wind and storm damage.

Premium Roofing Materials for Long-Lasting Protection

GAF Timberline® HDZ Shingles – Best-selling roofing shingles in North America.
Owens Corning Duration® Series – Featuring SureNail® Technology for maximum wind resistance.
Metal, Tile, and Slate Roofing – Elegant, durable, and fire-resistant.
Tesla Solar Roof & GAF Solar Shingles – Generate clean energy while protecting your home.

Warranties That Provide Peace of Mind

Up to 50-Year Manufacturer Warranty on premium roofing systems.
10-Year Workmanship Warranty – We stand by the quality of our work.

Why Hillsborough Homeowners Trust Simmitri for Residential Roofing?

✔️ Locally Owned & Operated for 30+ Years – We know Danville’s unique roofing challenges.
✔️ Licensed, Bonded & Insured (CSLB #XXXXX) – We follow strict industry standards.
✔️ Top-Rated Roofing Contractor – 5-star reviews from satisfied homeowners.
✔️ Eco-Friendly Roofing Options – Sustainable materials and solar integration available.
✔️ Flexible Financing Options – $0 down and low monthly payments.