Hampshire · London and the South East
Four Marks Roof Leak Investigation
Roof leak investigations in Four Marks, backed by more than 20 years’ experience. Every survey ends with a written report and photos.
- Water marks that spread in wet weather
- Water dripping from rafters or underlay
- Water that shows only in certain storms
Roof leak investigations for homes and businesses in Four Marks
Older homes have more places for water to get in. Worn lead, tired valley linings and blocked parapet outlets are frequent causes. A central valley gutter on a butterfly roof frequently turns out to be the source. Parapet walls and their gutters are checked from wherever it’s safe. Our report shows what we found, with photos. If you’re worried about a leak that comes and goes with the weather and drips in the loft during heavy rain, a survey will tell you what’s going on.
In older homes around places like Four Marks, the underlay may be old bitumen felt, or there may be none at all. Without a sound underlay, any gap in the coverings lets water straight through. Whether it’s long-term wear or recent damage makes a difference to what happens next. Wet battens and insulation in the loft are frequently the first clue.
How fast the report arrives depends on the package: Basic within 48 hours, Standard in 24–48 hours and Premium the same day.
- Location
- Four Marks (GU34)
- Region
- Hampshire
- Price
- From £150 inc. VAT
- Your report
- A written report with photos, by email
- Survey days
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
FAQs for Four Marks
Is my home in Four Marks listed or in a conservation area?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Do you carry out roof surveys in Four Marks?
We do. Every survey there gets the same written report with photographs.
Do you look in the loft space?
Yes, where the survey calls for it and there is safe access. Inside, we look for damp, staining, gaps and sagging.
Does this replace a RICS home survey?
No. Our survey looks at the roof, not the whole building. For the rest of the building, a RICS home survey is a separate job.
Why does not the damp patch line up with the hole?
Water follows the easiest path, not the shortest. On a pitched roof it frequently runs down a rafter before it finds a way through the ceiling. Following that route is what our investigation does.
Can you find a leak when it isn’t raining?
In many cases, yes. Stains, tide marks, damp timbers and moisture readings typically point the way. Some leaks only show in particular weather, so photos and notes from when it leaks help a lot.
Is this an asbestos survey?
No. We can flag materials that might contain asbestos, but confirming it is a job for a specialist asbestos surveyor. It may be present in buildings built or refurbished before 2000.
What we do, step by step
It is useful to start with what’s prompted the survey: a purchase, a leak, a storm, new work or simply peace of mind. That way we can focus on what matters to you. Most visits take an hour or two, more where the leak is intermittent or the roof is large. In a smaller place like Four Marks, as anywhere, the forecast plays a part: drone flights and thermal imaging need the right conditions, while a look from the ground and the loft can go ahead in most weather.
- We start with your notes and photos of the leak.
- Inside, we look at the stain and the ceiling around it.
- In the loft, we follow any signs of water back towards the roof.
- Outside, we check flashings, valleys, chimneys, gutters and flat roof details from each safe vantage point.
- We email a written report showing where the water most likely gets in.
How to prepare
- Make sure the loft hatch can be reached
- Gather any invoices or paperwork from past roof work
- Leave side gates unlocked
Book a survey
A quick phone call is usually the easiest start: call 07833 053749 or drop us an email, and we’ll ask about the building and what you need. You will have a price before anything is arranged.
Related advice
Prices for roof leak investigations in Four Marks
Several things affect the price of a survey:
- The size of the roof
- The shape of the roof and its details
- Extra roofs, like extensions, dormers or garages
- How tall the building is and how easy the roof is to see
A Basic Survey starts from £150, inc. VAT. Standard is from £250 and Premium from £400, both inc. VAT. You will know the exact price before booking.
What to tell us when you contact us
Getting the details right at the start saves time. It helps to include:
- What kind of property and roof it is
- Where water is showing inside, if it is
- What made you get in touch
- When you need the report by
When you are ready to go ahead, ring 07833 053749 or send us an email. We will suggest a package, agree the price and find a date.
Why act early in Four Marks
Lingering damp encourages mould on ceilings and walls. It is unpleasant, and it is harder to deal with once established. Finding the leak comes first. With lower homes, common in places like Four Marks, there is little between a roof defect and the ceiling, so water can show inside quickly once it gets past the covering. Finding the cause first saves a second job inside.
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You’ll know the figure before booking.
Why choose Independent Roof Survey in Four Marks
- Plain-English reports with photos
- PI and public liability insurance
- An independent look at the roof
- 5,000+ roofs surveyed
Take a look at our cost guide or our case studies.
What we are asked to look at in Four Marks
Every flat roof covering has a working life. Felt often lasts around 15 to 20 years, and as it ages it splits, blisters and opens at the laps. Leaks often start at the edges, upstands and outlets.
Typical things we’re asked to look at include:
- Leaks below a flat extension roof
- Damp walls below an overflowing gutter
- A leak that comes and goes with the weather
- Wet patches on loft insulation
Landlords with a home close to Alton station may find that a tenant living with a leak needs the cause found, not just the stain painted over.
Before you book any roof surveyor
- Which viewpoints they use to see the roof
- Whether the inside of the roof is included
- What the survey won’t cover
- What follow-up you get after the report
When you need someone else
A survey is a careful look at the leaking roof, but it can’t do everything. The main limits are:
- Leaks that only appear in weather we can’t recreate
- A structural engineer’s report
- Faults hidden behind ceilings or boarding
Not sure which survey suits your roof? You can phone 07833 053749 or send us an email and we’ll tell you before booking. The full list of what we check.
What we look at
- Valleys and parapet gutters
- Lead flashings
- Chimney stacks
- The roof space
- Flat roof details
- Rooflights and dormers
- Slate and tile slopes
Roof leak investigations around Four Marks
A number of Hampshire villages keep thatched roofs on their older buildings. Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles. Different coverings let water in at different points, which shapes where the search starts. Historic houses such as Bentworth Hall, about 2.7 miles north, show how far back building in the area around Four Marks goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first.
If you live in an older home near Church of the Good Shepherd, leaks on older roofs often start at lead flashings, valleys or around old chimney stacks. Anyone responsible for a site like Four Marks Church of England Primary School will know that water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot.
Four Marks is about 4 miles south-west of Alton, in Hampshire. Surveys in Four Marks work the same way as everywhere we cover: a proper look at everything that’s safely in view, photographs and a clear written report. Four Marks is one of the places in Hampshire we cover for roof leak investigations. There’s also a page for Southampton.
Every address in GU34 is covered for roof leak investigations, from the main roads to the quietest streets. Local streets include Read's Field, River Close and Chalk Close, and we cover them all. If you’re just outside Four Marks, we cover Medstead (1 mile north), Soldridge (1 mile west), South Town (2 miles north-west), New Copse (2 miles north) and Hattingley (2 miles north-west). Further out, we also cover Basingstoke (11 miles north), Winchester (12 miles west), Fleet (15 miles north-east), Horndean (14 miles south), Alton (4 miles north-east) and Petersfield (9 miles south-east).
Landmarks near Four Marks
The closest station to Four Marks is Alton station, roughly 4.6 miles north-east of the centre. Well-known places in the area include Barton Castle (3.5 miles north-west) and Alton Community Hospital (3.3 miles north-east). Not far away are Red Hill.
Checking the roof from the ground
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it, which helps when we look at the roof.
The one thing to avoid is getting up close. Slates, tiles, flat roofs and rooflights can give way. That part is for a survey.