How exterior paint usually fails
Paint on the outside of a house rarely fails all at once. It fails at the edges first: the bottom lap of a clapboard, the end grain of a sill, a joint where trim meets siding, the top of a window head. Water gets in there, the wood swells and shrinks, and the paint lets go. A good repaint is mostly about closing those gaps before color goes on.
The Census Bureau's QuickFacts count 54,773 households in New Haven in 2020-2024, at 2.29 persons per household. Each house has its own mix of siding, trim and exposure, which is why a painter needs to walk it before quoting.
What the station records
NOAA's engineering weather data for Bridgeport/Sikorsky, near New Haven, list about 50 freeze-thaw cycles in an average year, a 100-year rainfall rate of 2.7 inches per hour, and a 50-year basic wind speed of 120 mph (3-second gust at 33 feet). These are figures for that station, not readings from your street.
Freeze-thaw cycles are the number most connected to paint. Each time water in a crack or joint freezes, it expands and pries the gap a little wider. Rain rate and wind describe the hardest a storm can drive water against a wall, which is when open joints take on the most water.
Five failures and what prevents them
Peeling at the laps
When paint lifts in strips along the bottom edges of siding boards, water is usually getting behind it. The fix is scraping back to a sound edge, priming bare wood including the edge itself, and making sure the gap between boards isn't sealed shut in a way that traps water. Ask the painter how they treat the lower edges.
Cracked caulk at trim
Caulk that has shrunk and split lets water into joints. Old, failed caulk should be cut out, not covered over, and the joint primed and recaulked with a paintable sealant once the primer is dry. Not every gap should be caulked; some are there to let water drain out.
Rotting sills and trim ends
End grain soaks up water. A painter should probe suspect spots with a tool. Soft wood needs repair or replacement before paint; painting over it seals the rot in. Ask how repairs are priced and whether the painter does them or recommends a carpenter.
Blistering
Bubbles in fresh paint usually mean moisture or heat under the film. Moisture blisters may point to water coming from inside the wall, like a bathroom or kitchen without good venting. Paint over damp wood is another cause. Ask how the crew checks that wood is dry.
Alligatoring and checking
Old, thick paint layers can crack into a pattern of small squares. Paint over it won't hold for long. The cracked layers usually need to be scraped or sanded down to a sound surface first, which is slow work and a big part of some quotes.
Scheduling around the label
Every exterior product lists a minimum temperature, often for both air and surface, and a time before it can take rain. Paint needs time above that minimum after the crew leaves. Ask the painter how they plan the job around the label in the shoulder seasons, and what they'll do if a day turns out unsuitable.
What Connecticut says about registration
Connecticut's Department of Consumer Protection requires home improvement contractor registration for work on residential property, and its list of home improvement includes painting; contracts under $200 are excluded. That's the department's own description, linked in the card below. You can ask a painter about their registration before you sign.
The proposal
A proposal should list each surface, the prep for each in plain language, the primer and finish products, the number of coats, the repairs and how they're priced, protection of plants and windows, cleanup and the payment schedule. Our exterior painting page describes the prep steps, the sheens guide covers finishes for siding and trim, and the pricing guide explains why bids vary.
Afterward
Walk the house with the crew lead before final payment. Each spring, look at sills, laps and trim joints for cracked caulk and lifting paint. Fixing a small spot early is far cheaper than another full prep.