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TRUSTED BY ALTA LOMA, CA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon813
    Verified roofing services reviews

Top-Rated Roofers in Alta Loma - Updated Nov 2026

Avatar for Federal Building & Roofing
Federal Building & Roofing
4.8(
81
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - RepairMetal Roofing - Install or Replace+26 more

Serving Alta Loma, CA and surrounding areas

Approved

In business since 1979

Free estimates

Warranties offered

"This company was great. They got back to us right away for an estimate and a start date. We had to postpone a week due to rain but Richard contacted us in a timely manner to let us know when the new start date would be. The crew came on time, were very nice, did the work quickly and professionally and cleaned everything up. Richard came by every day to check on it all. We are very pleased with our new roof, patio cover and the whole process."
Additional Photos
Additional Photos
Additional Photos
Composition Roofing
Tile Roof

+2

7 neighbors recently requested a quote
Recommended by97%of homeowners
3rd Generation Roofing
4.5(
72
)
Asphalt Shingle Roofing - Install or Replace - For BusinessFlat, Foam, or Single Ply Roofing - Install or Replace- For BusinessNatural Slate Roofing - Install or Replace- For Business+1 more

Serving Alta Loma, CA and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"Awesome roofer, pleasure to have met him. He did an awesome job. Will refer him to friends and will be the first contact when I need to repair or replace my current roof."
Response time2 days
5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for California Roof Experts
California Roof Experts
4.7(
302
)
Asphalt Shingle Roofing - RepairTraditional Tile Roofing - RepairAsphalt Shingle Roofing - Repair - For Business+8 more

Serving Alta Loma, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Emergency services offered

"I posted on Yelp, wishing I could give them more than five stars! Arturo was great, Very organized and excellent communication. I am a very happy customer. I wish they did more than just roofs!! I have beautiful new roof- thank you California Roof Experts â ¥ï¸"
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA
Reroof with Tile Replacement - Walnut, CA

+41

Response time2 days
2 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for ESSENTIAL BUILDERS INC
ESSENTIAL BUILDERS INC
4.9(
189
)
Asphalt Shingle Roofing - RepairTraditional Tile Roofing - RepairWood Shake or Composite Roofing - Repair+7 more

Serving Alta Loma, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

"They were kind and efficient. I had to be diligent and push them to do a water test of the roof or else they would have diagnosed it with the wrong issue. But other than that, they were able to perform the work and solve the issue. It ended up needing a flashing maintenance rather than to re-do a whole portion of my roof (big difference... $1,500 vs. $4,500)"
Flat Roof Torch Down
Full Roof Completed
Full Roof Completed
Full Roof Completed
Owens Corning Underlayment

+35

Response time5 hrs
Response rate97%
136 neighbors recently requested a quote
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Roofing FAQs, answered by experts

Installing solar panels involves drilling small holes in your roof to secure the solar panel mounting brackets. These brackets hold the solar panels in place and must withstand strong weather conditions so they’re secured into your roof. However, holes and screws are sealed to prevent leaking and further damage.

There are several signs that indicate you’ll need new underlayment. Clear signs include missing or damaged roofing and exposing the underlayment to the elements. Additionally, if you notice water damage in your home by the roof after a storm, it could indicate that your underlayment may need to be replaced. If your gutters aren’t draining properly, it could also lead to rotting or water damage to the underlayment.

The easiest way to tell if your roof vent boot is leaking is to look in your attic for signs of water damage. You might see visible moisture, water spots, or mold on the roof decking around the roof vent or damaged or soggy insulation below it. If you don’t have access to your attic or aren’t sure if the vent boot is the issue, hire a professional to come inspect your roof and figure out the underlying issue.

The most common roof pitch is 4:12, which means a rise of 4 inches for every 12 inches of horizontal run. However, roof pitch varies widely based on roof design, climate, and even the roofing materials you plan to install. Your building type also plays a role, as flat roofs are common on commercial buildings and some modern homes.

You can put a green roof on a regular house with a compatible slope. Green roofs are best suited for flat or gently sloped roofs, as steeply pitched roofs can make the installation and maintenance of the green roof challenging. Flat roofs can support the weight of the soil and plants and ensure effective drainage.

The Alta Loma, CA homeowners’ guide to roofing services

From average costs to expert advice, get all the answers you need to get your job done.