Should You Replace Your Roof
San Diego · GoNano Certified Applicator

Should You Replace Your Roof or Protect It?

San Diego homeowners are saving $8,000–$18,000 by protecting their roofs with a proven nano-ceramic coating instead of replacing them.

Property Managers
UL & CNETE Tested
Peer-Reviewed Science
Won't Void Warranty
Tom Sawyer Trusted Since 2002
4.9★ (85 Reviews)
Tom Sawyer Fence Painting logo

Est. 2002

Tom Sawyer Fence Painting

Same Sun. Same Damage. Same Fix.

For 24 years, Tom Sawyer Fence Painting has protected wood from San Diego's relentless UV. The sun breaks down the oil binder in wood — and it does the exact same thing to the asphalt binder in your shingles.

Wood stain penetrates and protects. GoNano penetrates and protects. Same principle — molecular level. That's why we became San Diego's first GoNano certified dealer.

Read our full story
Split image: wood stain penetrating deck boards on left, GoNano spray treating roof shingles with UV protection on right

The Parallel

Wood stain penetrates & protects. GoNano penetrates & protects. Same principle — molecular level.

Save $8K–$18K

Treatment costs 80% less than a full replacement. Same protection, fraction of the price.

Done in 2–4 Hours

No scaffolding, no mess, no disruption. Your roof is treated and drying the same day.

Extends Life 10–15 Years

Nanosilica bonds at the molecular level, restoring elasticity and blocking UV degradation.

Roof Savings Analyzer

See Your Real Numbers

Walk through 4 quick steps. We'll show you the real math — replacement cost vs. GoNano protective coating — with San Diego-specific 2026 pricing.

StartStep 1 of 5

Start with your address

We'll use satellite data to estimate your roof's age and size — or you can enter details manually in the next step.

What San Diego Homeowners Say

Real results from real neighbors.

"My roof is only 4 years old and I couldn't believe the amount of granular loss from the shingles I found in my gutters. I was educated on the power of the GoNano protective coating. What a great solution for property owners! The team was very professional."

Alex L.

Google Review

Roof saved

"GoNano protects from hail and reduces the likelihood of not having adequate insurance coverage. Nothing is coming off the roof like I saw before the coating was applied. The product has kept its integrity."

David

GoNano Customer

Insured

"GoNano was cheaper than replacing my roof. The product helps preserve my existing roof that had lost particles. It gave me more time before replacement would be required. I've recommended GoNano to friends."

Guy

GoNano Customer

Recommended
Nano-silica technology: highways to runways to parking lots to rooftops
Not a Roofing Invention

This Science Has Protected Asphalt for Decades

From interstate highways carrying 80,000-lb trucks to airport runways surviving jet blast — nano-silica was proven at industrial scale long before anyone put it on a roof.

1990s–

Interstate Highways

DOTs use nano-silica to extend road life under 50K+ vehicles/day

2000s–

Airport Runways

Survives jet blast, fuel spills, and extreme thermal cycling

2010s–

Parking Lots

HOAs and commercial properties extend surface life at a fraction of replacement cost

2018–

Your Roof

Same proven chemistry, reformulated for spray application on shingles

How It Works

1

Free Roof Assessment

We inspect your roof's age, condition, and treatment suitability.

2

Prep & Maintenance

We secure loose nails, seal flashing around chimneys and vents, and ensure your roof is ready.

3

GoNano Application

40–60nm silica particles bond with asphalt at the molecular level.

4

Documentation & Warranty

Full certification package for your records and insurance.

Trusted Nationwide

Part of North America's Largest Roof Treatment Network

GoNano isn't one company making promises — it's a proven technology backed by hundreds of certified dealers and tens of thousands of satisfied customers.

420+

Certified Applicators

Across US, Canada & Mexico

50,000+

Satisfied Clients

Residential & commercial

3 of 5

Dragon's Den Offers

Investors backed the science

$1M+

Testing Investment

UL, CNETE & ASTM verified

You're not the first. GoNano has grown from 5 dealers to 420+ in just 4 years because the results speak for themselves. From single-family homes to commercial apartment complexes, the technology works — and 50,000+ property owners can confirm it.

Get Your Free Roof Assessment

We'll respond within 2 business hours. Or call us directly.

Free — No ObligationResponse within 2 hoursServing San Diego & the Eastern Sierra