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TRUSTED BY ALTA LOMA, CA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon812
    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

"Got quotes and talked to 3 other roofers. 3rd Generation Roofing gave me the best pricing, great costomer service and followup, and their crew was efficient and clean. I would, and already have, recommended 3rd Generation Roofing to others in need of a new roof. Altogether a good project experience."
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

"Sam and his team at Essential Builders tackled our roof repair with precision and professionalism, resolving the issue promptly and effectively. Their expertise and attention to detail gave us peace of mind, knowing that our roof was in capable hands."
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

A spray foam roof costs an average of $6,000 to install, making it one of the most affordable flat roofing options available. Costs can increase if you have a complex roof design with many roof vents or have a roof that’s larger than average. While up-front costs are relatively low, keep in mind that ongoing maintenance and repairs tend to be more expensive than you’d see with other flat roof materials.

Yes, algae-resistant shingles will prevent algae and moss growth, providing double protection for your roof and roof flashing. The copper-infused granules on algae-resistant shingles release copper ions that inhibit plant growth in general, so moss will have a harder time growing on your roof, too. Keep in mind that copper ions flowing off your roof during rainfall can also inhibit plant growth below, so your gardens and grass may be affected.

Green roofs are incredibly long-lasting. Some have life spans of up to 40 or 50 years. Since the roofs help to protect the rest of your home's roofing system, they can also extend the life of your existing roof.

Regular maintenance and inspections will help you get the most out of your green roof and ensure it lasts as long as possible.

A roof's ability to handle snow depends on its strength and the snow's weight, as wet snow is much heavier than dry, fluffy snow. While designs in snowy regions often allow for 35 to 50 pounds per square foot, a general guideline is that a typical roof can withstand about four feet of fresh snow, two feet of packed snow, or just one inch of ice. Factors like the roof's age, slope, and support structure also affect its capacity; newer, sloped roofs generally hold more weight than older, flat ones. Ice and ice dams add significant, dangerous weight. Because capacity varies, it is best to contact a professional roofing contractor or the original builder to determine the maximum snow load for your specific home.

Whether you should choose a flat roof or a sloped roof depends on your particular situation. Flat roofs tend to be less expensive to install. However, sloped roofs have longer lifespans and stand up better to heavy snow and other inclement weather.

Keep in mind that even a flat roof needs to have a slight slope, usually around 1/2 inch for every foot. If it is completely flat, water will pool and cause damage, either from weight or leakage or rot.

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.