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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

"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

Your chimney needs a structurally sound chimney cap, protective lining, damper, chimney flashing, and brick and mortar to prevent water from goind down your chimney. A pro can help you identify where the issue is so that you can stop water from coming down the smoke shaft, through your damper, and into your home.

Underlayment is required by building code, so any roof installed without it is technically against code. The underlayment acts as the second layer of defense against water, so installing a roof without underlayment means a much higher risk of roof leaks. You’ll have the best chance of avoiding roof leaks if you install drip edge flashing covered by underlayment, and then install your roofing material over that.

You can install solar panels on a flat or pitched roof, but keep in mind that they will need to rest at a 30- to 50-degree tilt for optimal sun absorption. It costs more to install solar panels on a flat roof because you will need to install a framing system and likely hire a structural engineer. If your roof has a pitch of more than 40 degrees, it may not be a good candidate for solar panels.

A roof replacement can take anywhere from one to 14 days. For most homes, a full replacement that includes tearing off old materials takes about one to two days, though the average project can last up to 12 days. The exact timeline depends on several factors, including the roof's size and complexity, the type of roofing material, the crew size, and weather conditions. Certain materials take longer to install; for example, metal roofs can take seven to 14 days because the material is more difficult to work with than asphalt shingles, wood, or tile. A re-roofing project, where new shingles are installed over old ones, can take half the time or less. It's also important to factor in the time needed to obtain necessary permits. A professional roofing contractor will typically complete the job faster than a DIY approach.

Once framing is complete, you will need the following materials to roof a house:

  • Wood sheathing

  • Drip edge, a.k.a metal flashing

  • Underlayment for waterproofing

  • Roof covering, like metal or asphalt shingles

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.