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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

Top-Rated Roofers in Simi Valley - Updated Nov 2026

Avatar for Alfa Roofing
Alfa Roofing
4.8(
96
)
Asphalt Shingle Roofing - Install or ReplaceTraditional Tile Roofing - Install or ReplaceTraditional Tile Roofing - Repair+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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8 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Confirmed Roofing Experts
Confirmed Roofing Experts
4.9(
63
)
Asphalt Shingle Roofing - RepairInspection - RoofingTraditional Tile Roofing - Repair+14 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I highly recommend Confirmed Roofing Experts for any re-roofing project. On was fantastic to work with responsive, knowledgeable, and genuinely invested in making sure we got the best possible outcome. The new roof looks stunning, and the whole process was handled smoothly. If you want reliable, top quality roofing work, this is the company to call!"
roof replacement
tile roof replacement
tile roof replacement
tile roof replacement
tile roof replacement

+370

Response time5 hrs
Response rate100%
193 neighbors recently requested a quote
Avatar for Reign Roofing, Inc.
Reign Roofing, Inc.
5.0(
54
)
Asphalt Shingle Roofing - RepairFlat, Foam or Single Ply Roofing - RepairInspection - Roofing+17 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Reign Roofing replaced the roof on my dad?s house, and the experience was excellent. Adam was easy to communicate with and made the process seamless. His crew did a fantastic job?professional, efficient, and they left the site spotless. The quote was quick, fair, and remained exactly as promised. The roof looks great, and I highly recommend Reign Roofing!"
Response time1 day
Response rate100%
57 neighbors recently requested a quote
Avatar for JORDAN ROOF COMPANY
JORDAN ROOF COMPANY
4.7(
124
)
Asphalt Shingle Roofing - Install or ReplaceNatural Slate Roofing - Install or ReplaceTraditional Tile Roofing - Repair+26 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Bill came over to my Mom's house and did a complete inspection of the roof. My Mom was concerned that she might need a new roof before the rains come.  Bill was so nice and honest with his discussion with my Mom and me.  He said that she had at least another 10 to 15 years of life left on her roof.  I asked if I could pay him for his time and he said no thanks.  
I have so much respect and appreciation for Bill and Jordan roofing, that when either I or my family needs a roof, I will use them !!
And I will recommend them to my friends !!
"
Commercial
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for California Building Professionals
California Building Professionals
5.0(
45
)
Asphalt Shingle Roofing - Install or ReplaceTraditional Tile Roofing - Install or ReplaceAsphalt Shingle Roofing - Repair+10 more

Serving Simi Valley, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Our new tile roof looks beautiful and has completely enhanced the appearance of our home. It’s clear California Building Pros take pride in the quality of their work and customer satisfaction. Highly recommend them to anyone looking for a reliable, skilled company for roof installation."
White Metal Roof
White Metal Roof
Spanish Tile Roof
Spanish Tile Roof
Spanish Tile Roof

+22

60 neighbors recently requested a quote
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Roofing FAQs, answered by experts

An improperly installed skylight could potentially impact your roof's warranty. This happens because roofing penetration is necessary during skylight installation. Check your warranty information to verify. In most cases, having skylights professionally installed with proof that flashing is being done to specifications can be enough to preserve your roof's warranty.

Generally, roof flashing is installed under the shingles to create a watertight seal and prevent moisture from seeping in and causing damage. However, the exact placement can depend on the type of flashing. For instance, with step flashing, the shingles and flashing overlap each other, meaning the flashing is technically both over and under the shingles. Flashing also typically goes beneath the house siding and is often not visible from the ground.

You may become so frustrated with the look of moss on your roof that you contemplate whether to clean or replace your roof. Fortunately, you don’t have to go as far as replacing it. After cleaning the moss, you can use a chemical solution to keep it away. For further protection, trim branches that overhang the roof, as fallen seed pods and leaves on the roof allow moisture to collect, encouraging moss growth. Consider adding zinc-coated flashing to the roof, too. As rain washes across the zinc, it leaves zinc particles behind that inhibit moss growth.

Tile roofing is durable, fire-resistant, and energy-efficient. It also adds aesthetic appeal and, with proper maintenance, can last 50-100 years.

A roof overlay will last an average of 15 years, compared to the 20 to 30 years or more that a full roof replacement for a shingle roof will last. An overlay’s lifespan may be shortened even further if there’s underlying damage to the existing roof or structural problems with the roof supports.

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.