Most articles comparing these two brands read the same way. Both are premium. Both perform better than cheap paint. It comes down to personal preference.
That is accurate as far as it goes. But it leaves out the question that actually matters if you own a home in Hawaii: which paint holds up in this climate?
We have been painting homes across Oahu for over 24 years. We have used a lot of products. Here is what we have learned, and why we now use Sherwin-Williams exclusively.

Both Brands Are Good. That Is Not the Point.
Benjamin Moore and Sherwin-Williams are both respected paint manufacturers with decades of development behind them. If a skilled painter applies a quality product from either brand correctly, the result will look good.
The differences between them, at the premium tier, are real but subtle. Tinting accuracy, sheen consistency, how the paint flows off a sprayer. These things matter to professionals. For most homeowners, the brand itself is less important than the product line chosen within that brand and the quality of the application.
So the question is not which brand is better in the abstract. The question is which product performs specifically in Hawaii's conditions, applied correctly by someone who knows what they are doing.
Why Hawaii's Climate Changes the Equation
Oahu's climate is harder on exterior paint than most mainland conditions. High humidity, intense UV exposure, salt air near the coast, and heavy tropical rain create a cycle that exposes weaknesses in lower-grade paint quickly.
Mold and mildew are a constant concern. UV rays break down paint binders faster here than in drier climates. Salt air is corrosive and works against the paint film. And the frequent rainfall means moisture is finding every gap it can.
A paint that performs well in moderate climates may peel, fade, or grow mildew in a fraction of the expected time here. That is not a failure of the homeowner or even the painter. It is a failure of the product not being matched to the conditions.
What Bernardo's Painting Uses, and Why
After testing products from both brands across hundreds of Oahu homes, our team now uses Sherwin-Williams Emerald Rain Refresh on every exterior job. We do not substitute it.
Emerald Rain Refresh was formulated for high-humidity environments. It resists mold and mildew, holds color under UV exposure longer than standard acrylic formulas, and applies at the film thickness that makes a paint job last. It also performs reliably even when painting in humid conditions, which matters in Hawaii where weather windows can be short.
We also have a strong working relationship with our Sherwin-Williams reps. They know our jobs and our expectations. That consistency carries over into every project we take on.
A note on application: The product is only part of the equation. We apply Emerald Rain Refresh using professional spray equipment, which builds the correct film thickness from the first coat. Brushing and rolling applies pressure that thins the paint as it goes on, which is why brushed-on paint often needs two coats to match a single sprayed coat. The right product, applied correctly, is what actually makes a paint job last.
What About Benjamin Moore?
Benjamin Moore makes excellent paint. Their Aura line is well-regarded among professionals, and their color accuracy and tinting system are strong. We are not here to knock the brand.
Our choice comes down to two things. First, Sherwin-Williams has a specific product built for the conditions we work in every day. Second, consistency matters in professional painting. When our team knows exactly how a product behaves on every surface type and in every weather condition, the results are more predictable. Switching brands introduces variables we do not need.
If you have a preference for one brand over the other, that conversation is worth having before we start. We will tell you honestly what we recommend and why.
What You Should Ask Any Painter
When you are getting quotes for an exterior paint job in Hawaii, ask the painter what product they plan to use and why. A painter who cannot answer that question specifically is worth a second look.
The brand and product line matter. The application method matters. And the prep work before the first drop of paint is applied matters more than either of those things. A premium product applied over inadequate prep will fail just as fast as a cheap one.
At Bernardo's Painting, we are glad to walk you through exactly what we plan to use and why before we start. That transparency is part of how we work.