Should You Replace Your Roof
or Protect It?
San Diego homeowners are protecting their roofs with a proven nano-ceramic coating instead of replacing them.
Protect, Don't Replace
If your roof is structurally sound, a protective coating can extend its life without a tear-off. Request a free estimate.
No Tear-Off Needed
The coating is applied to your existing roof. Request a free estimate to see if your roof is a good fit.
UV Protection
Nanosilica bonds at the molecular level, restoring elasticity and blocking UV degradation.
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
The Parallel
Wood stain penetrates & protects. GoNano penetrates & protects. Same principle — molecular level.
Real Results
See the Difference
Left: Aged shingles with granule loss and UV damage. Right: After GoNano treatment — color restored, protection sealed in.
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.
Calculate My SavingsNot 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.
Interstate Highways
DOTs use nano-silica to extend road life under 50K+ vehicles/day
Airport Runways
Survives jet blast, fuel spills, and extreme thermal cycling
Parking Lots
HOAs and commercial properties protect existing surfaces instead of replacing them
Your Roof
Same proven chemistry, reformulated for spray application on shingles
The Process
How It Works
Free Roof Assessment
We inspect your roof's age, condition, and treatment suitability.
Prep & Maintenance
We secure loose nails, seal flashing around chimneys and vents.
GoNano Application
40–60nm silica particles bond with asphalt at the molecular level.
Documentation & Warranty
Full certification package for your records and insurance.
Trusted Nationwide
Part of North America's Largest Roof Treatment Network
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.
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!"
Verified Homeowner
"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."
Verified Homeowner
"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."
Verified Homeowner
Common Questions
Frequently Asked Questions
Is my roof a good candidate for GoNano treatment?
GoNano works best on asphalt shingle roofs that are structurally sound but showing signs of aging like granule loss, brittleness, or fading. Roofs with significant damage or active leaks need repair first.
How long does the treatment last?
How long the treatment lasts depends on your roof's age, condition and exposure. GoNano's nano-ceramic coating is designed to protect shingles against UV degradation as the nanosilica bonds at the molecular level with the asphalt binder. Request a free estimate and we will assess your roof.
How does this compare to a full roof replacement?
If your roof is structurally sound, GoNano protection can be a smart alternative to full replacement. Pricing depends on the roof, so request a free estimate.
How long does the application take?
How long the application takes depends on the size and condition of your roof. The coating goes on your existing roof, so there is no tear-off. We explain the process and timing during your free estimate.
What's the connection to Tom Sawyer Fence Painting?
Same owner (Joel Ressel), same CSLB license (#1038505), same commitment to UV protection. For 24 years we've protected wood from the sun — now we protect roofs with the same science.
Get Your Free Roof Assessment
We'll respond within 2 business hours. Or call us directly.
Same CSLB License #1038505 · Same owner · Same commitment to protecting your home
San Diego's trusted fence painting experts since 2002 — licensed & insured. CSLB #1038505.
858-754-9842Call for Free Estimate