The honest answer is not a single number

Ask three contractors how often a driveway should be sealed and you will get three different intervals, all of them sounding confident. The answers differ because the interval is set by the surface in front of them, not by the calendar.

Two drives on the same street, laid the same week, can need coating years apart. One sits in full afternoon sun, the other spends half the day in tree shade. The sunlit one oxidises faster and asks for a coat earlier.

So the useful question is not how many years. It is what the surface is doing, and whether a coat is the right spend at all. A sealer is maintenance, not a repair, and the difference matters more than the timing does.

Why a new drive waits before its first coat

New asphalt is not ready for sealer. It is still releasing the lighter oils in its binder, and a coat applied over that traps what has to leave. The coat never bonds properly and comes off in patches within a season.

Six to twelve months is the usual wait. Anyone offering to seal a drive while the asphalt is warm is selling a visit, not a service. There is nothing to protect yet: asphalt is at its most sealed the day it is laid.

The same first year is when a surface is softest and most easily marked. Tyre scuffs, a dent under a trailer leg and faint roller lines at a low sun angle are all normal, and curing and the first season has its own rules. None of them involve sealer.

What the surface is telling you

Three checks, none of which need equipment. Colour first: a black surface still has coating on it, and a uniform grey one has oxidised through and is bare asphalt. Grey is the honest signal that a coat would now do something.

Texture second. Run a hand across it. If loose grit comes away, the binder holding the surface stone has gone and the stone is starting to travel. That is the stage coating is meant to delay, and it is the point where waiting another year costs you material off the top.

Water third. Pour a little on the surface. If it beads and sits there is still coating doing its job. If it soaks straight in it is reaching bare asphalt, and from there the base. That is the one that matters.

Why every year is worse than every third

Sealer is not paint and it does not simply sit on top waiting to be refreshed. Each coat adds thickness, and the accumulated layer becomes stiffer than the asphalt underneath it. The asphalt moves with temperature. The coating does not.

Past a certain build-up that mismatch shows. The coating cracks in fine patterns, then starts lifting away in flakes, and bare patches appear in the middle of a surface that was coated more often than its neighbours. From the road it looks worse than a drive left alone.

This is why an annual contract is the wrong product even though it sounds like diligence. Getting the sealcoating interval right does more for the money than any choice of product, and more often is not the same as better.

What a coat cannot fix

A sealer is a few millimetres thick. It evens the colour, slows further oxidation, and resists fuel and oil drips better than bare asphalt. That is the whole list. It adds no strength, bridges nothing, and never reaches the base.

So a surface that has broken into connected cracking is past coating. Those linked shapes mean the ground underneath is moving, and a coat over them is a cosmetic result for part of a season and money that is gone.

The same applies to a dip that holds water after rain. Sealing over a pond gives you a sealed pond. The water is still there, still working into the base, and the surface above it is still on the way out. That is a drainage job before it is a coating one.

Cracks come before the coat, never after

Sealer poured across an open crack does not bridge it. It sinks in, leaves a darker line, and that line reopens the same season because the crack underneath is still moving. The coat hid the problem and solved none of it.

So crack filling is a separate job that happens first, and it should appear as its own line on a quote. If a quote for a cracked drive has no crack line in it, that work is almost certainly not in the price.

It is also the cheapest item on any maintenance list and the one that does the most. Every crack left open is a route for water into the base, and the base is what ends a surface. Autumn is the window: the cracks are at their narrowest and the work beats the first freeze.

What changes the interval on your Edmonton drive

Exposure is the main one on a driveway. Full sun oxidises a surface faster than shade does, so the same build on the same street can sit years apart. Tree cover buys time; an open south-facing slab does not.

Use is the main one on a lot. Fuel and hydraulic drips attack the binder chemically in the places vehicles sit and turn, which is a faster and more local mechanism than weathering. That is why a commercial surface runs on a shorter cycle than a residential one.

The product matters least of the three and gets discussed most. What is in the drum, how much it was thinned and how many passes it got are all real, and sealer types is its own page, but none of it outweighs getting the timing and the preparation right.

What to check yourself before anyone quotes

Walk it and look at the cracking pattern from a distance, not close up. Separate lines running one way are age. Lines that have joined into shapes are the base. That one read tells you whether you are buying maintenance or a replacement.

Then go out after rain and note anywhere water stands, and how long it takes to clear. Standing water is the strongest predictor of early failure there is, and drainage and grading decides more about how long a surface lasts than any product.

If both of those come back clean and the drive is simply grey, a coat is reasonable and the figure should be straightforward. Ask for the product, the dilution and the number of coats in writing, because sealcoating cost turns on those three, and ask whether a maintenance plans page would cost less across a decade than calling when it looks bad.