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December 6, 2019
A professional roofer installs a new tile roof on a residential home using the best roofing installation techniques.

The Best Roofers in Alameda County CA Are the Ones Proven Safe To Hire

Roofing contractors in Alameda County CA bearing The Prime Buyer's Report TOP 10 symbol are the residential or commercial roofers who have exceeded the minimum California regulatory standard. They are the ones proven by our independent research to have passed the TOP 10 requirements for competency and value, carry liability insurance as protection for you the customer, who have agreed to hire only employees legal to work in the U.S., and for whom our staff has called previous customers to verify high satisfaction with them as roofers in Alameda County CA for new roofing, re-roofing, or roofing repair including shingle roofing, shake roofing, metal roofing, tile roofing and more.

The TOP 10 Roofing Companies in Alameda County CA

General Roofing Co.

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(510) 536-3356
3309 Elmwood Ave
Oakland, CA 94601
State Contractors License #154732
  • Prime Buyer's Report Top Ten
  • Diamond Certified
  • Better Business Bureau
  • WSRCA (Western States Roofing Contractors Association)
  • NRCA (National Roofing Contractors Association)

Areas Served: Alameda County incl. Oakland CA, Berkeley CA, Hayward CA, Dublin…
Services: roofing contractors & roofers for roof repair, re-roofing, new roof…
Key Brands: IB Roof Systems

High Definition Solar

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(925) 566-8282
1190 Burnett Ave Suite F
Concord, CA 94520
State Contractor’s License #949189
  • Prime Buyer's Report Top Ten
  • Diamond Certified
  • Better Business Bureau
  • League of California Homeowners

Areas Served: Bay Area & Contra Costa County incl. Concord CA, Walnut…
Services: new roofing, roofing installers, re-roofing
Key Brands: Bosch Solar, Canadian Solar, REC Solar, Sharp Solar Electricity, Yingli…

Bingham-Taylor Roofing

  • Bingham-Taylor Roofing Profile
  • Bingham-Taylor Roofing Scorecard
  • Bingham-Taylor Roofing Reviews
  • Bingham-Taylor Roofing Photos
  • Bingham-Taylor Roofing Brands
  • Bingham-Taylor Roofing Articles
  • Bingham-Taylor Roofing Offers
22721 Alice St
Hayward, CA 94541

Areas Served: Newark CA, Pleasanton CA, Berkeley CA, Livermore CA, Oakland CA,…
Services: new roofing, roof repair, roofing services incl. regular roof maintenance…

State Roofing Systems

  • State Roofing Systems Profile
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  • State Roofing Systems Reviews
  • State Roofing Systems Photos
  • State Roofing Systems Brands
  • State Roofing Systems Articles
  • State Roofing Systems Offers
15444 Hesperian Blvd
San Leandro, CA 94578

Areas Served: San Leandro CA, Pleasanton CA, Oakland CA, Newark CA, Berkeley…
Services: local roofing company for roof repair, reroofing, tile roofs, shingle…

Best Roofing

  • Best Roofing Profile
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  • Best Roofing Reviews
  • Best Roofing Photos
  • Best Roofing Brands
  • Best Roofing Articles
  • Best Roofing Offers
29300 Pacific St
Hayward, CA 94544

Areas Served: Fremont CA, Oakland CA, San Leandro CA, Berkeley CA, Pleasanton…
Services: residential roofing contractors, commercial roofing contractors, all roofing materials

Fidelity Roof

  • Fidelity Roof Profile
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  • Fidelity Roof Articles
  • Fidelity Roof Offers
1075 40th St
Emeryville, CA 94608

Areas Served: Berkeley CA, Livermore CA, Pleasanton CA, Oakland CA, Newark CA,…
Services: residential roofing, commercial roofing, steel roofing, copper roofing, leak repair

Petersen & Dean Roofing

  • Petersen & Dean Roofing Profile
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  • Petersen & Dean Roofing Articles
  • Petersen & Dean Roofing Offers
7980 Enterprise Dr
Newark, CA 94560

Areas Served: Oakland CA, Pleasanton CA, Hayward CA, Berkeley CA, Fremont CA,…
Services: roof company for roof shingle replacement, roof replacement & re-roofing

The Best Roofers in Alameda County CA Are the Ones Proven Safe To Hire


The state of California requires roofers in Alameda County CA to have a license from the state, such as the C39 license for roofing. The C14 license specifically for metal roofing contractors has been repealed and metal roofing is now done under the C39 roofing license which includes roofs using metal, asphaltum, pitch, tar, flet, glass fabric, flax, shakes, shingles, slate or any other roofing materials.

But the state license is no guarantee that any particular roofing company in Alameda County CA is doing business honestly, delivering value, or satisfying their customers.

This makes it all the more significant that all contractors for roofing in Alameda County CA who bear The Prime Buyer's Report-TOP 10 symbol have been cleared by our research staff as passing all the requirements for Prime Buyer's Report-TOP 10 status such as survey phone calls to previous customers to verify high satisfaction, good complaint record, verified state license, verified liability and workers comp insurance for your protection, only employees legal to work in the U.S., and more.

In addition to new roofing, roofing companies can fix a leaky roof, replace roof shingles, or repair broken slate roofs. Use our research to find the best roofers in Alameda County to replace a roof, fix a leaky roof, or roof repair.    

Roofing Contractors in Alameda County CA Perform Numerous Services

Roofing contractors install new roofs, but their experience with certain tasks and materials can vary. for instance, pitched roofs require a greater level of skill to install or repair. Most roofing companies in Alameda County also perform regular roof maintenance or roof repairs, including foam recoats and shake roof conversions. Some roofing contractors in Alameda County do emergency roofing repairs in the event of a roof leak, often with 24 hour availability.

In addition to installation and roof repair for roof coatings and coverings, some roofers install downspouts and gutters (even seamless gutters). Some of the best roofing contractors in Alameda County use manufacturer certified technicians to install, repair or refurbish your roof, so you can expect a greater level of workmanship and better manufacturer warranties on their work.

Roofing Contractors in Alameda County Offer Many Parts and Roofing Materials

There is such a wide variety of roofing materials and styles and each roofing material has its own benefits. Choices include shake roofs or imitation shake roofs, wood shingle roofs, cedar shingle roofs, clay tile roofs, slate roofs or even concrete tile roofs.

There are roofing companies in Oakland who specialize in metal roofs. They can fix or recoat steel roofing, steel roof shingles, stone coated steel roofing, aluminum roofing, insulated aluminum roofing, corrugated metal roofing, copper roofing, or zinc roofing. Some local roofing contractors can  rejuvenate an aging roof and take preventative measures to avoid future roof problems. They might use adhesive methods or modified bitumen to lay down new fire resistant roofing, or may apply elastomeric coatings or polyurethane foam for protection against the elements. In addition to basic roof coverings, some roofing contractors apply hot tar, tar and gravel, or install custom roof edging.

There are also some new products available for the eco-minded homeowner. Instead of wooden roof shingles, roofers might substitute composite roofing or energy efficient roofing. Some roofers in Alameda County even have access to ventilation products to insert into your preexisting roof. 



There are three main roof types based on their slope or pitch: High Slope, Low Slope, and Flat.

High Slope Roof: Over five inches of vertical rise for every 12 horizontal inches
Low Slope Roof: Two inches to five inches of vertical rise for every 12 horizontal inches
Flat Roof: Less than two inches vertical rise for every 12 horizontal inches



The components of a roofing system are: Structural Support, Roof Sheathing, Underlayment, Flashing, and Roofing Material.

Structural Support: Rafters, trusses or joists that support the roofing system.

Roof Sheathing: What immediately covers the structural support. This is most commonly plywood or OSB (Oriented Strand Board).

Underlayment: A moisture barrier immediately on top of the roof sheathing. Sometimes called roof felt.

Flashing: Where the roof surface meets vertical surfaces (like a chimney) or at valleys created where adjoining roof sections of different angles meet, a metallic flashing is installed.

Roofing Material: The topmost layer of the roof which you can see, such as shingles, tile, etc.



Asphalt Shingles, or alternatively, Fiberlass Shingles

Rolled Roofing / Built Up Roofing: Used for flat roofs or very low slope roofs.

Foam Roofing / Polyurethane Roofing: Used for flat roofs as an alternative to Rolled Roofing or Built Up Roofing

Metal Roofing

Wood Shakes

Tar & Gravel

Reflective Lightweight Rocks

Clay Tile / Concrete Tile


Ice and Water Shields for Roofing
A roofing ice and water shield looks very similar to the traditional felt paper used to line roofs but is higher performance.  Felt paper stops most leaks where water gets under the tiles or shingles but sometimes still lets leaks form by letting water through where one sheet of felt paper overlaps another or where nails have created holes in the felt paper.

The ice and water shield roofing material is made of a rubberized asphalt with a sticky backing that seals overlaps unlike felt paper, and forms a seal around nails when it is penetrated.  Roofers in Alameda County can cover your entire roof with the ice and water shield, or apply it only where leaks frequently happen.  The roofing contractors can also bend the ice and water shield to create a leak-proof barrier around anything that penetrates a roof, such as vents, chimneys, and skylights, then use standard roof flashings to cover the ice and water shield sub-flashing.

Some Roofers in Alameda County Are Safer To Spend With Than Others
The Prime Buyer's Report lists these roofing contractors in Alameda County: Fidelity Roof Emeryville CA, Best Roofing Hayward CA, Petersen & Dean Roofing Newark CA, Bingham-Taylor Roofing Hayward CA, State Roofing Systems San Leandro CA, General Roofing Co. Oakland CA, High Definition Solar Concord CA. Other roofing contractors in Oakland CA who might still be in business include: Ridout Roofing San Leandro CA, Alcal Roofing Hayward CA, Davey Roofing San Leandro CA.

Questions To Ask Roofing Companies in Alameda County

When choosing which roofer to hire, ask the right questions about their experience, range of services, credentials, and methods and materials before deciding.

• How long have they been in business as roofers in Alameda County? This indicates how well they know the local city ordinances, codes, and permit requirements for your area.

• How many roofs have they done specifically in Alameda County? This indicates how well they know the performance of different materials and installation methods in your particular climate, rainfall and wind patterns.

• How many roofs have they done of the same type as yours, i.e. same materials: clay tile versus asphalt shingle, same type: flat versus high slope, and same scope: repair only versus tear-off and reroof versus new roofing, etc.

• Can the roofing company give you client names and numbers you can call as references? (All roofing contractors bearing the Prime Buyer's Report—TOP 10 symbol have already had their client references called by research staff at The Prime Buyer's Report so you don't have to.)

• What is the projected time frame for completion of the new roof installation or roof repair?

• Does the roofing contractor have active workers' compensation and general liability insurance for your protection? (All roofers in Alameda County bearing the Prime Buyer's Report—TOP 10 symbol have already had their proof of insurance verified by our research staff so you don't have to.)

• How will the roofing companies calculate pricing for new roofs or roof repairs?

• Will they provide a written estimate that specifices the exact amount of material to be used, including sizes, brand names, product numbers etc? (This is key because the cheapest roofing companies often only seem cheaper because they are quoting inferior materials or low quality brands compared to other roofers.)

• Will the roofing contractors provide a written contract?

• Will permits be needed? If so, will they be responsible for getting them or will that be up to you?

• Can the roofing contractor prove that all their workers sent to your property are legally allowed to work in the U.S.? (All roofing companies in Alameda County bearing The Prime Buyer's Report—TOP 10 symbol have already signed an agreement to only hire documented workers.)    

• How often and when do they clean up?

• What is the manufacturer's warranty on the roofing system or material the contractor is suggesting?

• What kind of warranties and guarantees on their labor do they offer besides the manufacturer warranty on the roofing materials?

• Do they offer multiple types of roofing materials and brands, or are they restricted to quoting one manufacturer?


When you've chosen the best roofing company in Alameda County for your specific needs and priorities, make sure they are licensed with a C39 license for roofing contractors in Alameda County CA. (All roofing companies in Alameda County bearing the Prime Buyer's Report—TOP 10 symbol have already had their license verified by our research staff so you don't have to.)

Good Roofing Contractors in Alameda County Use the Best Roofing Brands


Some of the brands local roofing contractors in Alameda County CA use include: Air Vent, Atlas Roofing Corp., GAF Materials, GenFlex Roofing Systems, Recon Building Products, Award Metals, CertainTeed Roofing, Dura-Loc Roofing Systems, DECRA Roofing Systems, Eagle Roofing Products, Firestone Building Products, Elk Building Products, Stone Metal Products, Energy Star Cool Roofing Systems, Hardishake, PABCO, Tamko Roofing Products, and Gardner-Gibson Materials.

Resources About Roofing Companies in Alameda County CA

Licensing & Trade Associations Relevant to Roofers in Alameda County CA


ARCNC Associated Roofing Contractors of Northern California
ARCBAC Associated Roofing Contractors of The Bay Area Counties
IRCC Independent Roofing Contractors of California
BBB Better Business Bureau
CSLB Contractors State License Board
DCA California Department of Consumer Affairs
NRCA National Roofing Contractors Association
RCAC Roofing Contractors Association of California
RCASC Roofing Contractors Association of Southern California
SRCA Slate Roofing Contractors Association
TRI Tile Roofing Institute
Union Roofing Contractors Association
WSRCA Western States Roofing Contractors Association


Media & Web Resources Related to Roofing in Alameda County CA
Professional Roofing Magazine
Roofing RSI Magazine
Roofing Contractor Magazine
Traditional Roofing Magazine

The Prime Buyer's Report provides information for the TOP 10 Roofing Contractors in Alameda County CA within the following zip codes:

94557, 94543, 94661, 94540, 94624, 94537, 94623, 94662, 94620, 94712, 94614, 94701, 94613, 94604, 94536, 94550, 94607, 94619, 94586, 94608, 94545, 94606, 94618, 94580, 94568, 94544, 94605, 94617, 94579, 94552, 94542, 94603, 94615, 94578, 94546, 94541, 94602, 94612, 94577, 94709, 94555, 94601, 94611, 94588, 94708, 94539, 94560, 94610, 94566, 94705, 94538, 94551, 94609, 94621, 94587, 94704, 94703, 94702, 94710, 94707, 94706, 94502 and 94501

The Prime Buyer's Report provides information for the TOP 10 Roofers in Alameda County CA within the following cities:

Castro Valley, Dublin, Emeryville, Fremont, Hayward, Hayward, Livermore, Newark, Oakland, Piedmont, Pleasanton, San Leandro, San Lorenzo, Sunol, Union City, Alameda, Mount Eden, Albany, Berkeley, Ashland, Russell City and Komandorski Village