Exterior paint lasts 5 to 15 years. The biggest factors: what’s under the paint and where you live. Wood siding sits at the short end (3-7 years), painted brick at the long end (10-20 years with quality prep and premium paint), and everything else falls between. Most homeowners repaint every 7-10 years, but that average hides massive variation. A house in Phoenix bakes through its paint twice as fast as the same house in Portland.
Repaint Timeline by Siding Type
The surface underneath determines your paint’s lifespan more than the brand on the can. Porous materials absorb moisture that pushes paint off from behind. Rigid materials expand and contract, cracking the film.
| Siding Material | Repaint Interval | Why It Varies |
|---|---|---|
| Wood (natural) | 3-7 years | Absorbs moisture, expands/contracts seasonally |
| Engineered wood (LP SmartSide) | 5-10 years | More dimensionally stable than natural wood |
| Aluminum | 5-10 years | Doesn’t rot but chalks heavily |
| Stucco | 5-10 years | Textured surface traps moisture; hairline cracks accelerate failure |
| Vinyl (painted over factory color) | 5-10 years | Factory color lasts 20+ years; aftermarket paint peels if wrong product used |
| Fiber cement (field-painted) | 7-15 years | Minimal expansion; James Hardie ColorPlus factory finish carries a 15-year warranty |
| Brick (painted) | 10-20 years | Extremely stable substrate; upper range requires quality prep and premium paint — CertaPro cites 8-15 years for professionally applied jobs |
The brick trap. Bare brick is essentially maintenance-free. But once painted, brick becomes a repaint-forever surface because the paint film traps moisture that would normally evaporate through the porous masonry. Painting brick is a one-way door.
Climate: The Variable Nobody Budgets For
Climate rivals substrate type as a lifespan driver. A house in Scottsdale and a house in Seattle, built the same year with the same paint, need repainting on wildly different schedules.
UV exposure is the primary destroyer. Phoenix gets 300+ days of sunshine per year. Paint in the desert Southwest needs replacement every 5-7 years, while the same product in a moderate Midwest climate stretches to 10-15. Dark colors amplify the problem because they absorb more radiation, breaking down pigment binders faster.
Rain and humidity follow a different failure path. The Pacific Northwest dumps 36-40 inches of rain annually, mostly between October and May. That sustained dampness promotes mildew growth and pushes moisture behind paint films. Within a mile of the coast, salt crystallization inside the film accelerates peeling further. Portland painters see more peeling; Phoenix painters see more chalking and fading. Different failure modes, similar replacement timelines. On wood siding in salt-air environments, expect a noticeably shorter repaint cycle than the same product would deliver inland, regardless of prep quality.
South- and west-facing walls take significantly more UV punishment than north-facing walls on the same house. Check the south side first when assessing repaints. If the north wall looks solid but the south side is chalking, skip the full repaint. Spot-treating just the sun-exposed faces buys another 2-3 years.
Paint Quality Tiers: What You Actually Get for the Money
Every premium line from Sherwin-Williams, Benjamin Moore, and Behr carries a “lifetime limited warranty.” Read past the marketing: that warranty covers material replacement only (no labor, which runs 70-85% of the total cost), and it requires proof of proper prep.
What actually differs between tiers is how many years you get before the next repaint.
| Tier | Price Range | Expected Exterior Life | Examples |
|---|---|---|---|
| Economy | $30-$50/gallon | 4-6 years | Behr Premium Plus, Glidden Essentials |
| Mid-range | $50-$65/gallon | 6-9 years | Behr Marquee, BM Regal Select, SW SuperPaint |
| Premium | $70-$90/gallon | 8-12 years | BM Aura, SW Duration, SW Emerald |
Cost-per-year math matters more than sticker price. A $75 gallon of Duration lasting 10 years costs $7.50/year. A $35 gallon of economy paint lasting 5 years costs $7.00/year in material alone, but you’re paying for labor twice. At $1.50-$5.00 per square foot for professional exterior painting, that second labor charge dwarfs any paint savings. Premium paint wins on total cost of ownership on any house larger than 1,000 sq ft.
Behr Dynasty is a strange case. It carries a 10-year color fade protection claim based on accelerated weathering data (Delta E < 5), but Behr’s own warranty document excludes fade protection from coverage. So the “10-year fade guarantee” is a performance benchmark, not an enforceable guarantee. Still, the lab threshold is specific enough to be meaningful when comparing products.
Signs Your Exterior Paint Is Failing
Don’t wait for a calendar date. Your paint tells you when it’s done. For a complete checklist of paint failure indicators — chalking, cracking, blistering, and more — see the signs you need repainting guide .
Chalking. Run your hand along the siding. White powdery residue on your fingers means the paint’s binder is breaking down from UV exposure. This is stage one — you have a season or two before cracking starts. Repaint now and adhesion is perfect; wait longer and you’ll need scraping and spot-priming.
Compare the south wall to the north wall. If there’s a visible color shift, UV has degraded the pigments. Fading alone won’t damage your siding, but the protective resin beneath the color is thinning.
Hairline cracking is where the clock starts running fast. Small cracks in the paint film let water behind the coating, and freeze-thaw cycles widen those cracks exponentially over a single winter. This is the stage where delay adds hundreds to the repair bill.
Pop a blister. If water drips out, you have a moisture path behind the siding that no amount of repainting will fix. A dry bubble points to heat or prep failure instead. The paint bubbling guide covers the poke test and when bubbling signals structural water damage.
Bare substrate showing through. When you can see raw siding, the paint has completely failed and water is actively penetrating your wall assembly. Exposed wood rots within one wet season. Fiber cement without paint protection wicks moisture and swells at the edges. Don’t schedule a repaint for spring — patch it now with primer and a spot coat.
How to Extend Your Paint’s Lifespan
A $35 gallon on a properly prepped surface outlasts an $80 premium gallon slapped over old, flaking paint. Prep accounts for about 70% of the work. The painting process guide covers the full prep-to-finish sequence that determines whether a paint job lasts five years or fifteen.
Pressure wash before repainting. Dirt, mildew, and chalking residue prevent adhesion. 1,500-2,000 PSI with a 25-degree tip, held 12-18 inches from the surface. Let it dry 48 hours minimum.
Scrape and sand to sound paint. Every edge where old paint meets bare substrate needs feathering with 80-120 grit sandpaper. A hard lip between old and new paint telegraphs through the fresh coat and peels within a year.
Prime bare wood or fiber cement. Use a dedicated primer, not a paint-and-primer combo.
Two thin coats outlast one thick coat. Film thickness builds properly only at 350-400 sq ft per gallon per coat (the manufacturer’s recommended spread rate for most exterior latex). A single heavy coat traps solvents and cures unevenly.
Caulk fails before paint does. Cracked caulk around windows, doors, and trim joints lets water behind the siding where it pushes paint off from the backside. Recaulk every seam and penetration with a 50-year siliconized acrylic before repainting. Fifteen minutes of caulking prevents two years of premature peeling.
Time your paint job right. Ideal conditions: 50-85°F surface temperature, below 70% humidity, no rain in the forecast for 24 hours. Painting in direct afternoon sun on a 95°F day causes the surface to skin over before solvents escape, trapping gases that bubble the finish. Early morning on the south side, afternoon on the north side. Painters who follow the shade around the house get an extra 2-3 years from the same gallon.
What About Just Replacing the Siding Instead?
Repainting becomes the wrong answer when the substrate itself is failing. Soft spots in wood siding, structural cracks in stucco, or a fourth repaint cycle — replacement math starts working. If you’re still in the decision phase, the painting project planning guide can help you scope whether a repaint or replacement makes more sense for your timeline and budget.
Vinyl siding replacement runs $5-$12 per square foot with a 20-40 year lifespan and zero repainting. Fiber cement (HardiePlank) with ColorPlus factory finish costs more upfront but carries a 15-year paint warranty and a 30-year product warranty.
The math: repainting a 2,000 sq ft exterior runs $3,000-$10,000 per cycle, so three repaints over 20 years totals $9,000-$30,000. New vinyl for that footprint costs $7,000-$18,000 once. Break-even typically hits around the third repaint on wood-sided homes, though the exact crossover depends on your contractor rates and how much prep the wood needs each time.