Most roofs do not fail overnight. They give you two or three winters of small hints first, and the difference between a £200 repair and a £6,000 one is usually whether anyone was looking. Here is what a genuine roof inspection involves, what it should cost, and how often a Southampton home really needs one.
Southampton sits at the top of a tidal estuary with prevailing south-westerlies coming straight up Southampton Water. That means salt-laden air and repeated wind loading on the same elevation year after year. Nails, clips and mortar on the south-west face almost always go first, which is why a survey that only looks at the road-facing side of your house is close to worthless.
The housing stock matters too. The Victorian and Edwardian terraces around Portswood, Shirley and Bevois Valley are typically natural slate on cut nails, and those nails corrode long before the slate itself wears out. If slipped slates keep appearing in ones and twos, you are watching nail sickness, not bad luck. The 1930s semis in Bitterne and Highfield and the post-war estates in Thornhill and Millbrook tend to be concrete interlocking tiles, which get porous and lose their surface after roughly fifty to sixty years. Plenty of those roofs are now well past that.
Chimneys are the other recurring culprit. Lead flashing and haunching on a chimney stack takes the weather from every direction, and a failed stack will put water into a bedroom ceiling long before the tiles themselves give up.
A real inspection is not someone glancing up from the pavement. Whether it is done from a ladder, a tower, a pole camera or a drone, it should produce evidence you can look at yourself.
Both are legitimate, but they are different things. A free check is a visual assessment and a quote. It is useful if you already suspect a problem and want to know the fix and the price. Be clear-eyed about it though: it is a sales visit, and the person doing it has an interest in finding work.
A paid survey with a written report typically runs somewhere between £150 and £350 depending on access, roof size and whether you need a same-day document. That is what you want if you are buying, selling, dealing with an insurer, or sorting out a dispute with a neighbour over a shared valley. You are paying for an opinion that is not tied to winning the job, plus photographs and a note of remaining life. Ask whether the fee is refunded against any work booked, as many firms do this.
If someone knocks on your door unprompted, says they were working nearby and noticed your roof, decline politely. That approach has been a persistent problem across Hampshire and Dorset, and legitimate roofers do not need it.
The sensible rhythm is a look in early autumn, before the October to February storm run, and again after any named storm that puts sustained gusts through. For a roof over thirty years old, an annual check is reasonable. For a newer roof in decent order, every three years is plenty.
Between visits, the cheapest inspection you will ever do is a ten minute walk round with binoculars and a torch in the loft. Look for daylight where there should not be any, tide marks on the rafters near the chimney breast, granules from mineral felt collecting in the gutter, and slate fragments in the flower beds. A damp patch on an upstairs ceiling after driving rain, but not after ordinary rain, almost always points to wind-driven water at a flashing rather than a hole in the covering.
Every three years or so for a roof in good order, and annually once it passes thirty years old. It is also worth a look after any severe storm, even if nothing obvious has come down.
A drone or pole camera is fine for an initial assessment and gives you clear photographs without the cost of access equipment. Scaffolding or a tower is only needed where something has to be touched, lifted or tested by hand.
Homebuyer reports are often deliberately cautious and flag roofs they could not see properly. A separate roof-specific inspection will tell you whether you are looking at a few hundred pounds of repairs or a full recovering, which is useful information before you agree a price.
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