Door problems, explained
How Often Should a Front Door Be Refinished?
It depends on the finish and on which way the door faces, and the ranges are wider than most people expect. A clear varnish in direct sunlight generally needs recoating every 1 to 2 years (USDA Forest Service, Wood Handbook chapter 16). Exterior paint on wood runs 5 to 8 years (National Park Service, Preservation Brief 10). A pigmented stain under a good top coat sits between the two.
Exposure moves those numbers hard. A north-facing door's finish lasts about twice as long as a south-facing one (same source). So two identical doors on the same house can be on completely different schedules, and treating them the same is how one of them fails early. Here is how to work out your own interval, and what to look at in the meantime.
How often should you refinish a wood front door?
Work from your finish type first, then adjust for exposure.
Clear varnish or a clear top coat in direct sun: 1 to 2 years (Wood Handbook chapter 16). That chapter is blunt about it, describing varnish as a high-maintenance finish that is not generally used on the exterior of structures.
Pigmented stain with a good top coat: longer, because pigment blocks UV. The Forest Products Laboratory ranks protection from least to most as clear varnish, pigmented varnish, semitransparent stain, solid stain, paint, so each step up buys time.
Paint: 5 to 8 years (Preservation Brief 10). The Park Service puts windows and shutters at 5 to 7 years in Preservation Brief 47, which is a fair proxy for exposed millwork.
Then halve it for a fully exposed south or west door, and stretch it for a north-facing door under a deep porch. Those are not rules of thumb. They come straight out of the 2x north-versus-south finding.
Does the direction my door faces really change the schedule?
It is the single biggest variable. The Forest Products Laboratory states that a finish on the north side lasts about twice as long as one on the south side, and the same chapter recommends two top coats rather than one on fully exposed south and west elevations. The Park Service agrees in Preservation Brief 47 that southern and western exposures weather faster.
There is a local detail worth knowing. A south-facing door in Northern Virginia takes more direct sun in November through February than it does in June and July (NASA POWER, 2001 to 2020). The winter sun is low and hits a vertical door face nearly square on, while the summer sun is high and mostly clears it. So the heaviest UV of the year arrives in the same months as roughly 90 freeze-thaw cycles, derived from NOAA daily records, 1991 to 2020.
South and west doors are not on a slightly shorter schedule. They are on a different one.
What should I check, and how often?
Twice a year. The Park Service recommends inspecting exterior doors every 6 months, and notes that heavily used entry doors may merit more frequent checks (Preservation Brief 47). Spring and fall are the natural times, and it takes about five minutes.
Run through this list. Gloss: is the sheen even, or is there a dull chalky area where the sun hits hardest? Color: compare the exposed face to a protected reference like the hinge edge or behind the kick plate. Texture: run a palm across the face, feeling for fuzz or raised grain. Film: look for hairline crazing, especially in the upper middle of a sunny door. Bottom six inches: look for dark staining, lifting finish or swelling, and press an awl into any dark spot to check for softness. Edges: check that the top and bottom edges are actually sealed. Hardware and weatherstripping: look for gaps and water paths.
What are the signs it is due right now?
Chalk on your finger when you rub the door means the top coat is breaking down and is no longer protecting anything.
A dull patch that does not come back with cleaning means the film is worn through in that area, usually the sunniest section or around the handle.
Fine crazing you can see at an angle in raking light means the film has embrittled and cracked, and it is your last easy window to recoat before a full strip becomes necessary.
Any gray or silver showing in the grain means UV has reached the wood itself and the surface fibers are already degrading.
Any flaking, any bare wood, any dark staining at the bottom rail, or a door that has started binding seasonally when it never used to, means it is overdue rather than due. At that point the job has grown from a maintenance recoat into a strip and rebuild, which is a materially bigger number.
Can a maintenance recoat replace a full refinish?
Yes, and that is the entire point of keeping a schedule. If the film is still intact, the color is still good and there is no gray in the grain, we clean, scuff and add fresh top coats. The old finish stays, the wood is never exposed, and the clock resets. It is a fraction of the work and a fraction of the cost of a strip.
The window closes fast though. Once cracks reach the wood, a recoat is bonding to a layer that is already delaminating and it will lift within a season or two. And repeated recoating without ever stripping has its own limit. Preservation Brief 10 notes that excessive film thickness is enough on its own to trigger cracking and peeling, with the failure happening at the oldest layers next to the wood.
So the pattern that works is: maintenance coats on schedule, full strip occasionally when the film has had enough.
What does maintenance cost compared to letting it go?
A full strip and refinish is $550 to $1,400 for a single entry door, $950 to $2,200 for double or French doors, and $1,200 to $3,200 for a wood garage door. A maintenance recoat on a door caught before the film failed is considerably less, because the labor that dominates a refinish is the stripping and the preparation, and a recoat skips almost all of it.
Let it go past the point of bare wood and the numbers move the wrong way. The Forest Products Laboratory found that boards weathered 16 weeks before finishing peeled within 3 years, while boards finished immediately showed no peeling after 20. Exposure now means shorter life for whatever goes on next, on top of the sanding and repairs.
And a replacement door is $3,500 to $8,000 or more installed. Call (202) 979-9977 and we will tell you which side of the recoat line your door is on.
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Questions
Frequently Asked Questions
How do I know whether my door needs a recoat or a full strip?
Pop off a flake or look closely into a crack. If the film is unbroken, the color is even, there is no gray in the grain and no bare wood anywhere, a recoat will hold. If a chip has wood fiber on its back, if you can see gray down inside the cracks, or if any area is bare, the wood surface itself has degraded and everything has to come off. That test decides the price, which is why we ask for a close photograph before quoting.
What actually happens during a maintenance visit?
We clean the door thoroughly, check the moisture level and the joints, scuff sand the existing film so the new coat has something to key into, spot repair anything minor, and apply fresh top coats. The top and bottom edges get checked and resealed, since those are where doors take on water. It is a shorter visit than a full refinish and the door goes straight back into service. Doors kept on this cycle rarely need a full strip again.
Can I do the 6-month inspection myself?
Yes, and you should. It takes five minutes and it is the cheapest thing in this whole trade. Rub the surface with a finger and look for chalk. Compare the sunny part of the door to a shaded reference like the hinge edge. Feel for raised grain. Look at the film in raking light for fine cracks. Press an awl into any dark area near the bottom rail. Photograph anything you are unsure about so you can compare six months later, or send it to us and we will read it.
Does a porch or a storm door extend the interval?
A porch or a deep overhang genuinely does, and it is the best protection there is, because it blocks direct sun. The Wood Handbook specifically names doors protected by porches as places where varnish lasts longer, though it still calls for a minimum of three coats even there. A storm door is more mixed. It keeps rain off, but glass passes UV and the trapped air behind it gets very hot on a sunny day, which can blister a finish. Vent it in summer.
Is there a best time of year to refinish a door?
Spring and fall are ideal here, because coatings need the temperature and humidity to stay within range through the whole cure, not just while the brush is moving. Summer is workable, though high humidity and heavy dew slow recoat times, and a hot door surface causes its own problems. Deep winter is difficult, since a film that cannot coalesce properly never reaches full durability. We schedule around the forecast rather than pushing a finish that will not cure, and we will tell you if a week needs moving.
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