Siding Repair & Storm Damage · Guelph

Siding Repair and Storm Damage in Guelph

A missing panel is not a cosmetic problem. It is an open hole in the layer that keeps water off your sheathing, and the damage it causes is the kind you find later.

Most siding repair calls in Guelph come after one of three things: a windstorm, an impact, or a stain appearing on an interior wall that nobody can explain.

The first two are obvious and the third is the expensive one, because by the time water shows up inside, it has usually been getting into the wall for a while.

Wind: panels off, and what it tells you

Every serious wind event in this region puts siding on somebody's lawn. The exposed walls take it worst — west and southwest elevations in town, and everything on a rural property standing alone in open country with nothing upwind to break the flow.

When vinyl comes off in wind it is almost never a defective panel. It is one of three things: the panels were not fully locked into the course below, they were nailed too tight or too loose so the lock could not hold, or the starter strip at the bottom of the wall was not fastened properly and the whole run unzipped from the bottom up. That last one is why a single loose panel at the base can eventually cost you an entire elevation.

So the useful thing about a wind failure is the information. If one panel lifted on a sheltered wall, that is bad luck. If a run unzipped, or if panels came off several elevations, the installation is telling you something about the rest of the house and the right response is to have someone go over all of it rather than screw one panel back on.

Impact, hail and cold weather

Vinyl is brittle when it is cold. The same impact that would bounce off a panel in July will crack it cleanly in February — a ladder foot set against the wall, a shovel, a snowblower throwing a stone, a puck, a branch. This is the single most common repair call from the south end in winter.

Hail damage on vinyl shows as cracks and punctures rather than the dents you would see on aluminum, and it is often on the elevation that faced the storm rather than spread evenly. Aluminum dents and keeps the dent. Fibre cement and engineered wood generally shrug off what would crack vinyl, which is one of the practical arguments for them.

If you are making an insurance claim, photograph everything before anyone touches the wall, get the date of the weather event, and keep the damaged pieces. We will document what we find and give you a written scope you can hand to an adjuster. We are not an insurance restoration firm, we do not handle claims for you, and we will not inflate a scope to suit one.

The damage you do not see

Here is the part that matters more than any of the above. Siding is the layer keeping bulk water off the sheathing. When a panel is missing, cracked or unlocked, water that should have run down the outside of the wall now gets behind it, and because it is behind the siding, nothing about it is visible.

What that does over a couple of Ontario winters is specific. Water gets into the sheathing and the framing. It freezes, expands and thaws, over and over, which opens the material up. It feeds mould in the cavity. And it wicks sideways and downwards, so the wet spot is often well away from the hole. By the time there is a stain on a bedroom wall or a soft spot at a window corner, the repair is not a panel any more.

Which is why our answer to "it is only one panel, can I leave it until spring" is usually no, and why a temporary weatherproof closure is worth doing even when the proper repair has to wait for the weather.

The matching problem, stated honestly

This is the frustrating part of siding repair and the part people are least prepared for.

Vinyl siding colours and profiles are discontinued regularly. Even where the same colour name is still available, a panel that has been on a Guelph wall for fifteen years has faded — more on the south and west elevations, less on the north — so a brand-new panel of the identical colour will not match the wall it is going into. Profile matters too: the depth of the lap, the width of the course and the texture all have to line up or the patch reads as a patch from across the road.

What can actually be done, in order of preference:

• Use leftover stock. If the original job left panels in your garage or under the deck, they are the best match you will get. Check before calling anyone.
• Rob a hidden elevation. Pull matching, equally-aged panels from a wall nobody sees — behind the garage, a side wall against a fence — patch the visible damage with them, and re-clad the hidden wall in the closest current product. This is the technique that solves most front-elevation repairs in the south end and it is worth the extra labour.
• Do the full elevation. Where the damage is extensive or the match is hopeless, doing one complete wall corner-to-corner at least puts the transition at a corner, where the eye accepts it.
• Accept a near match on a wall where it does not matter. Sometimes that is the sensible, economical answer and we will say so.

What we will not do is tell you a match is perfect when it is not. You will see it every time you pull into the driveway, and you will remember who promised otherwise.

Repair or re-clad: how to decide

Repair makes sense when the siding is generally in good condition and healthy for years yet, the damage is localised, a reasonable match is available, and the rest of the installation is sound. That describes most south-end calls.

Re-cladding makes sense when the material is at the end of its life anyway — chalked, faded and dented aluminum in the west and north end is the obvious case — when the same failure keeps happening because the installation itself is the problem, when there is rot behind the siding that needs the wall opened, or when you would be spending a significant fraction of a re-clad on a patchwork that will never look right.

The genuinely awkward middle case is a house where the siding has maybe five years left and a wall has been damaged. There is no clean answer there. What we will give you is both numbers and a straight opinion, and you decide.

Leaks that are not actually a siding failure

A fair number of water problems blamed on siding are not the siding. The usual real causes, in roughly the order we find them:

• A missing kick-out flashing where a lower roof meets a wall. This is the single most common one, and it concentrates a stream of water into the wall at exactly one point.
• No head flashing over a window or door, with the trim caulked instead.
• A deck ledger fastened through the cladding without flashing.
• Failed caulking at a penetration that was doing a job flashing should have been doing.
• Roof or eavestrough problems overflowing water down the wall face. That is someone else's trade and we will tell you plainly when that is what we are looking at rather than selling you siding work that will not fix it.

Finding the actual source matters more than the repair, because replacing wet sheathing and putting new siding over an unchanged detail just resets the clock on the same failure.

Timing and season

Repairs happen year-round, within reason. Cold vinyl is brittle and awkward to cut cleanly, so winter work is slower and needs more care, and a panel installed in deep cold has to be gapped differently at the trim than the same panel in July. Where a proper repair genuinely has to wait for weather, the priority is closing the wall temporarily so it is not taking water all winter. Storm damage gets triaged: an open wall or an active leak comes before a cosmetic crack.

Frequently asked questions

Serving Guelph and surrounding areas. Contact us for a no-obligation quote specific to your property.