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TRUSTED BY SIMI VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon660
    Verified roofing services reviews

Find Roofers in Simi Valley

Avatar for Alfa Roofing
Alfa Roofing
4.8(
96
)
Asphalt Shingle Roofing - Install or ReplaceTraditional Tile Roofing - RepairTraditional Tile Roofing - Install or Replace+17 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2016

Free estimates

Offers commercial services

Exceptional Quality. Family Values. Built to Last.\n\nWe know your roof is your home’s first line of defense. Whether you need a quick repair, a complete replacement, or a brand-new installation, we treat every property as if it were our own. Our services are fully customized to your specific needs, budget, and vision—delivering exceptional attention to detail from start to finish.\n\n\n🔨 Our Core Services\nAsphalt Shingle Roofing: Premium installation, seamless replacement, and prompt, reliable repairs.\n\nTile Asphalt Roofing: Skilled craftsmanship designed for maximum durability and standout curb appeal.\n\nFlat Roofing Systems: Dependable, weather-resistant solutions tailored to keep your building secure.\n\n⭐ Why Choose Alfa Roofing?\n20+ Years of Expertise: Industry-proven techniques and deep roofing knowledge you can rely on.\n\nFamily-Owned & Honest: No high-pressure sales—just upfront communication, integrity, and personal service.

New Roofing Photos
New Roofing Photos
New Roofing Photos
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5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Alfa Roofing
Alfa Roofing
4.8(
96
)
Traditional Tile Roofing - RepairAsphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For Business+7 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quick response

"Great price, lower than other companies quotes. Doesn't add on work you don't need. They actually fixed my roof the very next day as they were able to move their schedule around to accommodate. Highly recommended."
wood shake Tear off / shingles
wood shakes Plywood / shingles
wood shakes Tear Off / shingles
Tear off,  Before Woodlands shingles.
woodlands by GAF

+19

Response time1 day
11 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Reign Roofing, Inc.
Reign Roofing, Inc.
5.0(
54
)
Asphalt Shingle Roofing - RepairInspection - RoofingTraditional Tile Roofing - Repair+17 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Highly recommended! Adam Tweedy and his team repaired our 'cool roof' and three patio decks in just two days. The crew was efficient, careful with our furniture, and the installation was impressive. The roof passed the water test, proving its quality. An added bonus: they didn’t need to remove our solar panels, saving us time and money. For a reliable, water-tight roof at a reasonable price, call Reign Roofing!"
Response time1 day
Response rate100%
40 neighbors recently requested a quote
Avatar for JORDAN ROOF COMPANY
JORDAN ROOF COMPANY
4.7(
124
)
Traditional Tile Roofing - RepairMetal Roofing - Install or ReplaceNatural Slate Roofing - Install or Replace+26 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Excellent communication from the first meeting to look at the roof, through establishing the contract, scheduling, and completing the work. There was unexpected additional action required at the end of the project and, Rene, the Superintendent, followed up and had that completed ASAP. I also want to comment that the roof replacement was done on my parents' home in S.Calif. I live in the Seattle area. I had hoped to be there during the roof replacement but the timing was such that I could not be. Rene was accessible to me by phone or email if I had questions or was working through details on behalf of my parents. He always responded in a timely manner. Rene also went above and beyond by taking pictures of each stage of the project, emailing them to me with updates. My parents asked me to be on point so much of the communication came to me, yet Rene also kept my parents' updated. Jordan Roofing is professional, timely, and clean up was thorough. Excellent customer service and high quality work. Even the city roof inspector commented that Jordan Roofing Company does excellent work. I highly recommend Jordan Roofing Company."
Commercial
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for California Building Professionals
California Building Professionals
5.0(
42
)
Asphalt Shingle Roofing - Install or ReplaceTraditional Tile Roofing - Install or ReplaceMetal Roofing - Repair+10 more

Serving Simi Valley, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"We needed our old roof replaced and got a few quotes from different roofing companies before we chose California Building Professionals. They were the only ones that explained the roof replacement process, answered all our questions, and made us feel comfortable with the project. GREAT COMPANY!"
White Metal Roof
White Metal Roof
Spanish Tile Roof
Spanish Tile Roof
Spanish Tile Roof

+11

13 neighbors recently requested a quote
Avatar for Cabrera Roofing
Cabrera Roofing
4.4(
73
)
Asphalt Shingle Roofing - RepairInspection - RoofingRoof - Clean+9 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"We had a leak in our roof. Another company came out and didn't even try to identify where the leak was coming from. they tried to sell us a new roof. Cabrera went into the attic and identified the leak, then went on the roof and found a nail that had come out. They patch the spot and added tar to some other areas. The first company wanted $67,000 then before he left they came down to $41,000. Cabrera said we had at least 5 years left on our roof and charged us $500."
Response time2 days
Response rate85%
11 neighbors recently requested a quote
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Roofing questions, answered by experts

Spray foam roofs don’t stand up well to impact, so they won’t last as long as something like a tar and gravel roof and other flat roof materials in areas where extreme weather is common. Due to the reduced durability, you’ll also need more frequent maintenance and repairs for a spray foam roof, and those costs will add up over time. Spray foam roofs are relatively uncommon, so you may also struggle to hire a roofing contractor who can install one.

Gaps between tiles are necessary to help with weatherproofing, allow for thermal expansion, and increase wind resistance. In general, a small gap no larger than 3 millimeters wide will encourage proper drainage and limit cracking. Beyond that, tiles should overlap a minimum of 3 inches, except at the eaves where they should extend to the center of the gutter.

Generally, hailstones that are one inch in diameter or larger can cause significant damage to a roof. However, smaller hail can also cause damage, particularly when accompanied by strong winds, if it strikes an aging or poorly maintained roof, or if hailstorms are frequent in your area. Hail that is ¼ inch (pea-sized) or smaller poses a minimal risk of immediate, permanent damage, but cumulative impacts can cause deterioration over time. The extent of the damage also depends on the roofing material; hail-resistant tiles like slate or certain types of asphalt shingles can withstand impacts better than other materials. If you are concerned about potential damage after a storm, it is always a good idea to have a professional roofer conduct an inspection.

You should hire a roofing professional to install a metal roof, as it’s an essential part of your home and a difficult installation. Your roof provides the most protection for your home among all of the building materials, and any mistakes made during the installation process can quickly lead to roof leaks, water damage, and significant repair costs. A roofing professional will ensure your new roof is installed properly and according to building code to minimize that risk, and they will usually back the installation and materials with a roof warranty for added peace of mind.

The most common slope range for roofs on houses in snowy areas is between 4/12 and 6/12, or 50%. A roof with a slope of less than 10%, or roughly a 2/12 pitch, won’t be effective at shedding snow. However, roofs that are too steep can allow large amounts of snow to build up and fall all at once, creating a hazard for those on the ground.

The Simi Valley, CA homeowners’ guide to roofing services

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