Comprehensive Residential Roof Inspection and Maintenance in Simi Valley
Call us today for a FREE ESTIMATE!
YEARS OF EXPERIENCE AS ONE OF THE MOST RELIABLE ROOFING COMPANIES IN SIMI VALLEY, CA
Simi Valley’s extreme heat and seasonal winds can cause roofing materials to degrade prematurely. Our inspection and maintenance programs are designed to identify “shingle uplift” and debris buildup before they turn into major leaks. We provide thorough checks of flashings, valleys, and gutter systems, which are vital for homes near the heavily wooded areas of Big Sky and Wood Ranch. By catching minor issues during an annual inspection, we can often perform repairs that fall under the 100-square-foot permit-free threshold, saving you money and extending the life of your roof. For details on larger projects and Simi Valley permit requirements, visit our
We conduct our Simi Valley Roofing business in a manner that elevates how roofing contractors are perceived by individual homeowners and commercial clientele alike. Customer service is paramount at GreatWay Roofing Company.
GreatWay Roofing
4518 Industrial St
Simi Valley, CA 93063
(805) 852-0510
Why Regular Maintenance is Vital for Your Roof’s Lifespan
Think of roof maintenance as preventative care for your largest investment. Just as you wouldn’t drive a car for 50,000 miles without an oil change, your roof requires professional oversight to withstand the Simi Valley climate.
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Preventing Tile Failure: In Simi Valley, high winds often cause tiles to shift, break, or even fall off the roof. When a tile moves, it exposes the sensitive underlayment to the sun and rain, which leads to premature leaks and costly repairs.
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Validating Your Warranty: Most roofing manufacturers and workmanship warranties require regular, documented inspections to remain valid. Our program provides the historical records you need to keep those protections in place.
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Proactive Debris Management: For homes in Big Sky and Wood Ranch, debris from local trees can trap moisture and accelerate material rot. While we no longer promote gutter cleaning as a standalone service, we include debris removal from the roof and gutters as a standard part of our maintenance package.
What’s Included in Our Maintenance Package
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Comprehensive Professional Inspection: A top-down review of your entire system, including flashings, penetrations, and valleys.
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Minor Seals & Pipe Protection: We perform preventative sealing on pipes and vents to prevent water intrusion.
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Strategic Repairs: By identifying small issues early, we can often perform repairs that fall under the 100-square-foot permit-free threshold, saving you time and money.
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Full Professional Documentation: You receive a detailed report of our findings, providing proof of maintenance for insurance or future home sales.
Ready to schedule service? Contact our main Simi Valley Roofing Services page.
If we find a problem, we can solve it with our expert Simi Valley Roof Repair services.
If your roof is too old for maintenance, learn about Simi Valley Re-Roofing options.
CALL US TODAY FOR A FREE, NO-OBLIGATION ESTIMATE!
MINIMUM ROOFING REQUIREMENTS
Listed here is a breakdown of the minimum roofing requirements based upon the most common existing roof coverings for Simi Valley.
Categories:
Asphalt Shingle:
Tile:
Low Slope:
# of Layers
Max layers = 2
Max layers = 1
No addl. layers permitted
Added layers may require Engineer’s Report
Plywood
Use existing
Replace as needed
Use existing
Replace as needed
Use existing
Replace as needed
Min. Felt
Underlayment*
ASTM D226 Type I 15#)
30# recommended
ASTM D226 Type II (30#)
40# recommended
Not Applicable
Min. Fire
Rating
Class A Min.
Class A Min.
Class B Min.
Recommended Class A
Color Restrictions
**No Restrictions**
**No Restrictions**
**No Restrictions**
Max. Weight
**6lbs. Per sq. ft. Over 6lbs. Requires Engineer’s Report**
**6lbs. Per sq. ft. Over 6lbs. Requires Engineer’s Report**
**6lbs. Per sq. ft. Over 6lbs. Requires Engineer’s Report**
*Roofs with a slope of less than 4:12 require a minimum of 2 layers of a 15lb. ASTM D226 Type I felt underlayment.
REVIEWS
WHAT OUR CLIENTS ARE SAYING
Tim and Brandon sent updates at every step including pictures of their work in real time.
We are very pleased and have contracted them for another property.
Highly recommend.
The price was great (as much as it can be for a roof, no small purchase), and the crew was really fantastic. They were professional and got the work done quickly. They had to put sheathing on my roof, since it’s old and didn’t have any underneath (!), and the whole project still only took 4 days.
For me, the best thing was that the crew cleaned up every day. The yard was clear, and there were no nails or debris hanging around. It’s a little thing that was really nice to see— it was really nice to go outside in the afternoon and not worry about stepping on anything/ having that peace to move around in the middle of a project.
I’d recommend this company to anyone.
This company is a class act and I am so pleased to have picked GreatWay Roofing who kept me informed thru email and sent photos as the project was moving ahead.
Great customer service, knowledgeable courteous workers and a satisfied customer says it all


