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Phoenix-area stucco home with a brown asphalt shingle roof, brick chimney and white picket fence
ShingleGuard Roof Rejuvenation logo

Arizona roof rejuvenation

Don’t Replace Your Roof Before You Have To.

Discover how ShingleGuard’s bio-based asphalt shingle rejuvenation treatment may help restore flexibility to aging shingles and extend your roof’s useful life, at a fraction of the cost of a complete replacement.

Watch: how roof rejuvenation works

  • Licensed & insuredAZ ROC #368164
  • 5-year warrantyBacked in writing
  • USDA-certified biobased96% biobased treatment
  • Free assessmentsNo cost, no obligation
Our work

See ShingleGuard on a real roof

Real footage from a ShingleGuard job: our crew applying the bio-based treatment, plus a before-and-after photo of a treated roof.

View the project gallery
Close-up of aging asphalt shingles with faded, uneven color and worn granules, common signs of oil loss

Signs of oil loss

Faded color, loose granules in gutters, and shingles that feel stiff instead of flexible.

Arizona is hard on roofs

Your shingles may be drying out, not wearing out.

Asphalt shingles rely on oils in the asphalt to stay flexible and weather-resistant. Arizona's intense sunlight, extreme heat and seasonal storms draw those oils out over time, and shingles gradually become brittle.

  • Intense UV
  • Extreme heat
  • Monsoon storms

A brittle roof isn’t always a failing roof. If your shingles are aging but still structurally sound, rejuvenation may help restore flexibility and extend your roof’s useful life, so you can put off replacement until you truly need it.

How Arizona weather affects asphalt roofs Take the 1-minute roof self-check
How it works

A simple, three-step process

Think of it as an oil change for your roof: rejuvenation replenishes the oils that keep your shingles flexible. Here's what working with ShingleGuard looks like.

Learn how rejuvenation works
  1. 1

    Free roof assessment

    We inspect your shingles up close, checking flexibility, granule coverage and any damage, then tell you honestly whether rejuvenation makes sense.

  2. 2

    Protect & tune up

    On treatment day we protect landscaping, pools and surfaces, then tune up the roof: Perma-Boot covers on the vent pipes, a few replacement shingles, resealed vents and flashing, and clean gutters.

  3. 3

    Rejuvenate

    We apply our bio-based treatment evenly across the shingles, where it is absorbed into the asphalt to replace oils lost to age, sun and heat. It's typically dry within about an hour.

Why homeowners choose rejuvenation

Protect your investment. Keep more of your money.

A roof replacement is one of the largest expenses a homeowner faces. If your roof is aging but still sound, rejuvenation may let you get more years from what you already paid for.

  • Save compared with replacement

    Treating a qualifying roof costs a fraction of a full tear-off and replacement, so you can put off that major expense.

  • Help restore flexibility

    Replacing the petroleum oils the Arizona sun and heat have baked out may help aging shingles become more flexible and less brittle.

  • Extend useful roof life

    One treatment supports shingle flexibility and performance for about 5 to 6 years, helping your existing roof last longer before it needs replacing.

  • Minimal disruption

    No tear-off, no dumpster in the driveway and no crew on your roof for days. Most homeowners go about their day.

  • Biobased & responsible

    A USDA-certified biobased, biodegradable treatment (96% biobased content), designed for safe use around homes. It also keeps old shingles out of the landfill.

  • Backed by a 5-year warranty

    Every ShingleGuard treatment comes with a 5-year warranty, with full terms given to you in writing before any work begins.

Backed by science

A treatment with real credentials

We chose our rejuvenation treatment because it's backed by certification, independent testing and published research, not just marketing.

  • USDA Certified Biobased

    Certified through the USDA BioPreferred program, with 96% biobased content from renewable sources rather than petroleum.

  • Patented formula

    Protected by a U.S. patent issued in 2025 for treatments that improve aged, brittle asphalt binders.

  • Independently lab-tested

    Tested by an independent asphalt testing laboratory in 2020, 2021 and 2024, showing improved shingle flexibility and better granule adhesion.

  • Untreated shingles shed nearly 2x the granules

    In independent lab testing on 13-year-old shingles, untreated shingles lost 13.2% of their granules, nearly twice the 7–8% lost by treated shingles.

  • Class A fire rating maintained

    In independent ASTM E108 fire testing, treated roofs kept their Class A fire rating, and flame spread was slightly reduced.

  • University research, peer-reviewed

    Developed from Iowa State University research, with results published in a peer-reviewed asphalt technology journal in 2025.

  • Bonds with aged asphalt

    University lab analysis showed the treatment chemically reacts with aged asphalt, rather than just softening it the way a plain oil does.

  • Flexibility restored to nearly new

    In Iowa State University testing, treatment brought shingles from roofs more than 15 years old back to nearly new flexibility.

  • Clean runoff, near-zero VOCs

    Water-based with no odor. Independent testing measured just 0.02% VOCs and found no detectable PAHs or PCBs in rain runoff from treated shingles.

Results on any individual roof vary with its age and condition.

See the full lab results
Rejuvenate or replace?

Why replace a roof that still has life left?

For qualifying roofs, rejuvenation is about $2,000 to $3,000 for most Valley homes, versus $8,000 to $15,000 for a new roof. Here's how the two options compare.

  • Typical cost

    Rejuvenation

    $1.00–$1.25 per sq ft, about $2,000–$3,000 for most homes, tune-up included

    Replacement

    $4–$7 per sq ft, about $8,000–$15,000 for most homes

  • Time on site

    Rejuvenation

    Usually a single visit

    Replacement

    Often several days, plus scheduling and permitting

  • Disruption at home

    Rejuvenation

    No tear-off, no dumpster, minimal noise

    Replacement

    Tear-off noise, debris, dumpster in the driveway

  • Material waste

    Rejuvenation

    Keeps existing shingles on the roof and out of the landfill

    Replacement

    Old shingles are torn off and hauled to the landfill

  • Safety

    Rejuvenation

    USDA-certified biobased treatment, designed for safe use around homes

    Replacement

    Heavy equipment, nails and debris around your home during tear-off

  • Warranty

    Rejuvenation

    Backed by a ShingleGuard 5-year warranty

    Replacement

    Manufacturer and workmanship warranties vary by contractor

  • Best suited for

    Rejuvenation

    Aging but structurally sound asphalt shingle roofs

    Replacement

    Roofs with widespread damage, leaks, rot or failed decking

Not every roof is a candidate. Roofs with leaks, rot, or widespread damage need repair or replacement, and we’ll tell you if that’s the case.

Full cost comparison
Service area

Serving homeowners across the Greater Phoenix Valley

ShingleGuard is based in Arizona and provides asphalt shingle roof assessments and rejuvenation throughout the Phoenix metro area. Don't see your city? Call or text and ask.

Common questions

Straight answers before you decide

See all frequently asked questions

$1.00 to $1.25 per square foot of roof, which comes to $2,000 to $3,000 for most Valley homes. A new shingle roof runs $8,000 to $15,000. The price includes a roof tune-up: a Perma-Boot cover on every plumbing vent pipe, replacing a few damaged shingles, resealing vents and flashing, securing popped nails, and cleaning out your gutters. There’s no minimum. Where you land in the range depends on any extra work your roof needs and where you are in the Valley, and you get the exact price in writing after your free assessment, before you decide anything.

Yes. We inspect your roof, explain what we see, and tell you whether rejuvenation makes sense. There is no cost and no obligation. If your roof isn't a good fit, we'll tell you. Call or text 480-283-4560 to schedule.

Rejuvenation is designed for asphalt shingle roofs that are aging but still structurally sound: shingles that are dry, faded or losing some granules, but are not curling badly, cracking through, leaking or missing in large areas. During your assessment we check shingle flexibility, granule coverage and overall condition before recommending anything.

A roof coating forms a new layer on top of the roof surface. Rejuvenation is absorbed into the asphalt in the shingles themselves to replenish lost oils, and it's designed to bond with the aged asphalt as sun and heat act on it. It is not a paint, sealant or membrane, and it is intended to leave your roof looking like a shingle roof.

Find out if your roof qualifies. It’s free.

A quick assessment tells you where your roof stands and whether rejuvenation could save you from an early replacement. No pressure, no obligation, just straight answers.