Here’s the truth most painting contractors won’t tell you: the paint brand matters far less than how well the surface was prepared before it went on. You can apply $100-per-gallon Sherwin-Williams Emerald on a wall that wasn’t properly cleaned, sanded, and primed, and it will peel in three years. You can apply a mid-range product on a perfectly prepped surface and it will last a decade.
We spend 40 to 60 percent of the labor hours on every project before the first finish coat goes on. That is not a figure of speech. It is how the schedule actually breaks down, and it is the single biggest reason one job lasts eight years and an identical-looking one fails in three.
The most convincing evidence for this is the work we get called in to fix. Two crews can apply the identical product to the identical house and get a five-year difference in service life. The paint was never the variable.
What Happens When Prep Is Skipped
Peeling and bubbling. Paint applied over dirty, chalky, or loose surfaces cannot bond. It lifts within one to two years, and on Western Washington exteriors it lifts in sheets rather than chipping, because moisture gets behind the film and cannot get back out. When a coating releases in sheets, that is almost always an adhesion failure rather than a product failure.
Cracking at joints. Uncaulked gaps between trim and siding open as the house moves through freeze-thaw cycles. Water finds those gaps, gets behind the coating, and the damage happens where you cannot see it until the paint tells you. Caulking is the least visible step on any exterior job and the one that most determines whether water gets behind your paint.
Uneven coverage and flashing. Bare patches, water stains, and repaired areas that were not primed absorb paint differently than the surrounding surface. You see every patch through the finish coat, and you see it most clearly under raking light from a window.
Early fading and mildew return. Surfaces that were not cleaned of mildew or chalking degrade from underneath. Painting over mildew locks it in and it grows back through the new coating. That is a surface problem, not a paint problem, and no product on the shelf solves it.
Tannin bleed. Cedar and redwood are common on older Edmonds and Seattle homes, and their natural tannins bleed straight through latex primer. Without a stain-blocking primer on every bare area, a white house turns blotchy brown within months.
What Professional Prep Actually Looks Like
On exteriors, we pressure wash at 1,500 to 2,500 PSI. That is enough to strip dirt, chalking, mildew, and loose paint without driving water behind the siding or furring up soft wood. Higher pressure is faster and does damage you will not see until the coating fails over it. Heavy mildew gets a cleaning solution and dwell time instead of more pressure.
Then the house dries. A minimum of 24 to 48 hours, longer if the weather is marginal. Painting damp siding traps moisture under a fresh coating and guarantees blistering.
After that: every loose area scraped back to a sound edge and feather-sanded so the transition does not telegraph through the finish. Soft or rotted fascia, trim, and siding replaced rather than filled, along with the moisture path that caused it, because fixing the wood without fixing the cause just resets the clock. Every joint, seam, and penetration re-caulked with a flexible elastomeric. Every bare wood surface primed, full stop.
One deliberate exception: the bottom edge of lap siding is left uncaulked, so any moisture that does get in has a route back out.
On homes built before 1978 we follow EPA lead-safe RRP practices. Containment, HEPA vacuums, controlled debris capture. That is not optional and it is not a line item anyone should be dropping to win a bid.
On interiors, the work is different but the principle is identical. Nail pops set and patched. Cracks cut out, taped, and floated rather than just filled, because a filled crack reopens in a season. Texture matched on repairs so the patch disappears under paint instead of showing through it. Glossy trim scuff-sanded so the new coat has something to bite into.
And kitchens get degreased with a proper cleaner. Cooking oil residue on a wall is completely invisible and it will reject paint. This is also the single most common reason a cabinet refinish fails within the first year, which is why every cabinet refinishing job we run starts with degreasing before anything else.
How to Tell If a Contractor Cuts Corners
Ask what percentage of the project time goes to prep. If the answer is under 30 percent, they are cutting corners. If they cannot answer specifically, that is worse.
Then look at the estimate itself. Does it list prep steps by name, or does it say “prep and paint”? A real estimate specifies what gets washed, scraped, repaired, caulked, and primed, because that is where most of the labor lives. A contractor who will not write it down is a contractor who has not committed to doing it.
Two more that separate the field:
Ask about priming specifically. “Spot priming bare wood” and “full prime coat” are very different amounts of work and money. Find out which one you are buying.
Ask what happens if they find rot. The right answer is that they show you, quantify it, and quote it separately before doing the work. Nobody can see behind trim from the driveway, and a bid that pretends otherwise is either padded or about to produce a change order.
The Bottom Line
When you compare estimates, compare prep scope rather than paint brands. A properly prepped exterior in this climate lasts eight to ten years. A rushed one starts failing at eighteen months, usually on the south and west elevations first where UV does the most damage, and at the bottom edges of siding where ground splash wicks moisture up into the board.
The cheaper bid is almost never cheaper per year of protection. It is just cheaper on the day you sign it.
Full detail on our process is on the exterior painting and interior painting pages.
Get your free estimate from Paint Gunners and we will walk your property and tell you exactly what prep it needs. Serving Lynnwood, Bothell, Kirkland, Bellevue, Redmond, and 23 cities across Snohomish and King County.
