License #: 1083225

Los Angeles New Roof Installation Contractor

Preparing to install a new roof is a complex task, and it’s vital to engage an experienced contractor who can deliver high-quality work reliably. Our experienced roof installation contractors have the expertise to assess your particular needs and will be able to suggest the best materials and methods for installation. They will also have a wealth of knowledge about the local climate and its impact on your installation, helping you choose a product that offers high performance with minimal maintenance over time.


Certified by The Best Roofing Brands

Anxiety-Free Roof Installments

AJ Reyes Roofing has over 25 years of experience installing roofs in the Los Angeles Area, and we work by the motto: “Do it once, do it right.”

  • We offer free consultations to assess the condition of your current roof.
  • We install several kinds of premier shingles, tile, and flat roofs.
  • We carefully install each roofing material according to the manufacturer’s specifications to ensure quality and longevity.
  • AJ Reyes is a family business proud to serve families in the Greater Los Angeles area and is committed to giving every client the best roof for their home at the lowest price.

An old or damaged roof can allow water to seep into your home, causing damage to frames and walls. Installing a new roof or reroofing your home before it shows signs of age or wear can save you money and give you peace of mind.

Many homeowners are concerned about the roofing installation process and worry that it will be a lengthy or costly procedure that disrupts the everyday enjoyment of their home. Many are also interested in the cost of repairing a roof versus installing a new roof, believing that fixing their current roof might be cheaper.

Due to its stunning Mediterranean climate, Los Angeles roofing installation services are quick and easy for homeowners, allowing for minimal disruption to daily life. Due to changing earthquake and fire codes, installing a new roof is better than repairing an existing one.

When Should You Get a New Roof?

All roofs have a lifespan, and it is vital that you replace your roof when it has reached the end of its useful life. The exact lifespan of your roof depends on the type of roofing material used, the quality of the installation, and if the roof has been damaged over the years.

If you are concerned about your roof’s condition, there are some warning signs to watch out for. If you notice any damage like missing or raised shingles, or if your roof is reaching the end of its lifespan, call a professional at AJ Reyes to inspect your roof and give you a quote.

You should visually inspect your roof with the change of every season (approximately every three months) or after a large storm or earthquake. If your roof is in good condition, there should be no missing tiles or shingles, and they should lay flat on the roof with no large visible gaps.

If you notice you have cracked tiles or buckled, curled, or cracked shingles, it could be a sign that your roof is damaged. This happens naturally after years of exposure to the sun, wind, and rain, and it means your roof is due for a replacement.

While your roof may look good with all the shingles or tiles intact, there could be hidden damage. Over time, water can find its way into small cracks or between improperly installed roofing materials. This water can cause damage to your home’s roof and rot your home’s frame and interior walls.

Check your attic or the highest interior part of your home for wet patches on the walls, moisture stains, peeling paint, or rafters and ceiling material that is damp to the touch after a rainstorm.

Your roof should have straight lines from end to end with no sagging or bowing at any point. This could be a sign that the decking or underlayer of your roof is damaged and in urgent need of repair.

When you visually inspect your roof, use a 12” ruler as a sight guide or a spirit level to see if the roof dips in any places. Sagging and bowing are serious issues that can lead to roof collapses if not repaired or replaced quickly. Contact AJ Reyes immediately if you find any inconsistencies in the roof level.

If your roof is not completely waterproof, damp areas of the roof or decking could cause the growth of mold, moss, or fungi. They grow in dark, moist areas and can lead to harmful moisture retention in the roof layers. While advanced mold, moss, or fungi growth can be spotted easily when visually inspecting the inside of your roof, by that point, it is often already harmful to your health.

When you inspect the outside of your roof, check for green or white fuzzy material at the seams of tiles or shingles. This is often the start of mold, moss, or fungi growth, and it is easier to fix when detected early.

Perhaps the single biggest factor in whether or not you will need to have your roof replaced is the roof’s age. The lifespan of a roof will depend on roofing materials such as:

  • Metal shingles: 20-70 years
  • Three-tab asphalt shingles: 15 years
  • Architectural shingles: 30 years
  • Wood shingles: 30 years
  • Clay tile: 100 years
  • Slate tile: 100 years
  • Solar tile shingles: 30 years

If your roof is nearing the end of its lifespan, or if you have recently purchased a home and are unsure about the age of your roof, call AJ Reyes Roofing for a consultation. We will examine your current roof, decking, and roof structure for damage and let you know what type of new roof is best suited to your home.

The Process of Installing a Roof: A Step-by-Step Guide

Clay Tile Roof

1. Choosing a Roof Installation Contractor

If you see damage, are concerned about your roof, or if your roof has reached the end of its life span, it’s time to call the experienced roofers at AJ Reyes. We have been providing roofing installation services in Los Angeles for almost three decades.

We are a family-owned and operated business that offers transparent pricing, honest advice, and a 5-10 year warranty on labor and a 25-year warranty on roofing materials. Contact us for a free consultation and estimate, and join our list of satisfied customers in the Greater Los Angeles area.

2. Selecting a Roofing Material

During your consultation with AJ Reyes, we will discuss different roofing materials that may be good for your home. We offer a range of materials, including:

  • Architectural, and asphalt shingles.
  • Rubber, membrane, modified bitumen, and built-up flat roofs.
  • Traditional Spanish curved clay or concrete tiles.

All roofing materials are long-lasting, durable, and weather-resistant when properly installed by our experienced roofers. However, if you live in a historic property in Los Angeles or a residential community with a Homeowner Association, there may be a roofing material that is required for your home.

3. Removing the Previous Roof

After deciding what type of roof you want, we remove your existing roof. We use varying techniques to remove your roof depending on which material was used in construction. If it is a shingle roof, we will use a tool called a shingle fork to carefully pry off each shingle without damaging the decking underneath. 


If you have a metal or tile roof, we will use a crowbar or drill to remove any fasteners that hold the roof in place. Bitumen or tar roofs are removed using solvents or by melting the material to remove it. 


All roofs are removed from the highest point to the lowest, and the material is placed in a dumpster for quick, clean, environmentally-friendly removal. 

4. Examining Roof Structure for Damage

Once the previous roof has been removed, we carefully inspect the roof decking and structure for any damage. Some damage is invisible to the untrained eye or may only be revealed when the previous roof is removed, so our roofers will check everything and discuss repairs before we install your new roof.

5. Preparing for a New Roof Installation

When the roof decking and structure are repaired, our roofers will prepare the roof deck for your new roof. This is a vital step that prolongs the life of your roof and keeps your home safe from weather damage.

Our roofers check the flashing on the roof deck and replace it most of the  time. The flashing consists of galvanized steel or aluminum installed over joints in the roof deck to prevent water seepage. While these pieces of metal don’t always need to be replaced, they are vital to protecting your home and highly recommended. Our roofers will replace any damaged flashing before installing your new roof.

Next, our roofers install a drip edge at the base of your roof—this channels rainwater away from the eves, fascia, and roof underlayers. Additional drip edges are added to the sides of your roof after the underlayment is installed, and a final drip edge is added to the apex of the roof after the roofing material is in place. 

6. Installing Roof Underlayer

The roofing underlayer may be a crucial component of your new roof. It is an added layer of protection designed to prevent water from seeping into the decking or roof structure.

To start, we place a waterproof membrane to prevent leaks between the underlayer and the drip edge. The underlayer is pulled tight and nailed to create an impermeable barrier that protects your roof.

We also install an additional layer called an underlayment. This adds protection to your roof decking. It is laid starting at the drip edge at the bottom of the roof and secured with cap nails or staples every 4’’ to 6’’ along the perimeter. Sheets of underlayment are laid one over the other in an overlapping pattern with cap nails every 6’’ to 10’’ for added protection and longevity.

7. Installing the Roof

Once the roof is adequately prepared, we begin the roof process installation. If you have chosen a shingle roof, we start by installing a layer of shingles at the bottom and sides of your roof. We stagger each row as we move up the roof to prevent water from leaking between layers. We place the nails along the asphalt strip at the top of each shingle to hide them from view, giving your roof a beautiful, cohesive look.

If you have chosen a tile roof, we prepare the roof by installing battens if your roof is at a steep angle. We begin by laying tiles in alternating layers from one side of the roof to the other, securing the tiles to the battens or roof decking with nails. We cap your roof with special ridge tiles to make the tiles waterproof.

8. Clean-Up and Final Touches

After the roofing installation process is complete, we remove any debris or construction materials. We inspect our work to ensure everything is installed correctly and add any final cosmetic touches necessary to give your home a beautiful new look.

Hiring a Professional Roofer in Los Angeles, California

AJ Reyes Los Angeles roofing company has been a commercial and residential roofing expert in the Los Angeles area since 1995. We are professionals in installing tile, shingle, and flat roofs, and we have built a network of vendors that allows us to provide high-quality roof services at unmatched prices. Our team of dedicated, professional roofers pride themselves on delivering a high-quality service to all our customers.


Frequently Asked Questions and Answers

Consider replacing your roof if you find evidence of damage or if your roof has reached 80-85% of its manufacturer-recommended lifespan.

Roofing costs are calculated per square. A square equals a 10’ x 10’ section of roof. The average residential home is between 22 and 34 squares for a new roof.

Generally, a new roof in the Greater Los Angeles area will cost between $500-$2,000 per square, depending on the roofing material used:

  • Asphalt shingles cost between $600-$1,000 per square
  • Tile costs $600-$1,500 per square.
  • Flat roof (torch down and hot mop) costs $500-$1,200 per square, 

It takes between 2 and 5 days to install a new roof, depending on the type of roofing materials and the weather.

TPO, or Thermoplastic Polyolefin, is an insulation solution made of a single layer of roofing membrane attached to a solid substrate base layer that is ideal for flat roofs or roofs with a gentle slope.

EPDM, or ethylene propylene diene monomer, encompasses a range of durable rubber roofing materials with unmatched water resistance due to their seamless design. They are laid in a single sheet and can be made with extra UV coating or insulation to give a home the exact level of insulation it needs for the local climate.

Yes, AJ Reyes Roofing offers Flat Roofs with Hot Hop and Flat Roofs with Torch Down made with high-quality materials like manufactured bitumen, rubber, membrane, and built-up layered materials.

  • Architectural, and asphalt shingles
  • Rubber, membrane, modified bitumen, and built-up flat roofs with hot mot and torch down
  • Traditional Spanish curved clay and concrete tiles 
  • At AJ Reyes Roofing, we offer a 5-10 year guarantee on labor and a 25-year warranty on roofing materials.