Portsmouth · London and the South East
Roof Leak Investigation in Southsea
Roof leak investigations for homes and businesses in Southsea. We’ve completed more than 5,000 surveys across London and the South East.
- A leak that comes and goes with the weather
- Water coming in around a roof light or dormer
- Damp ceilings under a flat roof
Roof leak investigation in Southsea: what you get
Roof leaks rarely show up where you’d expect. Water often travels along timbers or underlay before it finds a way down, so a ceiling stain is rarely directly below the cause. Our leak investigation traces it back. A repair aimed only at the stain can miss the cause entirely. Finding the route first lets the repair go where it is needed. If you’ve noticed brown rings on upstairs ceilings and drips from nail tips in a cold loft, we can find out what’s behind it.
In a town like Southsea, older houses and newer estates leak in different ways. On older roofs it’s often slates, mortar and lead that has split or lifted; later homes can leak at valleys, verges and flat roofs over extensions. Knowing the cause tells you what to do next. It also tells you whether the problem is old wear or something more recent.
We write the report in plain English, so it makes sense without any roofing background. Each point is backed by a photo where possible, and recommendations are put with the most urgent first where relevant.
- Location
- Southsea (PO5, PO4, PO1)
- Region
- Portsmouth
- Price
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- Appointments
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
Tips that help
You don’t need to be a roofer to help. What helps most:
- Note the weather when the leak shows
- Don’t climb onto the roof to look
- Move stored items away from the hatch
- Catch drips in a bucket and protect the floor
Once the work is done, hold on to the report. If water appears again, it shows what was found before.
Keep gutters, valleys and outlets clear, ideally once the leaves have fallen. Many leaks start with a blocked outlet. Leave the clearing to someone with the right equipment.
When to book a survey in Southsea
A roof valley collects the rain from two slopes. Worn lead, cracked linings or a build-up of leaves and moss can push water under the slates or tiles. Leaks from valleys frequently show up some distance away inside.
Signs worth acting on include:
- Leaks that appear only in driving rain
- Damp on a chimney breast
- Damp ceilings under a flat roof
- Condensation that looks like a leak
Take an older house close to St Margaret of Scotland: lead flashings, valleys and old chimneys are typical places for water to get in.
Questions to ask before booking
- Do they have a CAA Flyer ID and Operator ID for drone work?
- Their report turnaround times
- What follow-up you get after the report
- Whether VAT is added on top
Different roofs, different checks
Valleys
Valleys collect water from two roof slopes. Worn or split linings and slipped valley tiles let it under the coverings.
Slate and tile slopes
‘Nail fatigue’ is a common cause of slipped slates. One slipped slate can be enough to cause a leak.
Southsea roofs and the weather
Southsea is within about 1 mile of the coast, so there is more wind and more salt in the air than further inland. Wind lifts loose slates, tiles and ridge pieces, and driving rain finds any gap they leave, and salt air slowly wears metal fixings. 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. Each of these roof types has its own typical places for water to get in.
For businesses in and around places such as The Bridge Shopping Centre, finding where water is getting in quickly keeps disruption down. Hotels and guest houses near Southsea can’t easily close rooms for a leak, so it pays to find faults before guests do.
Southsea is about 2 miles south of Portsmouth, in Portsmouth. We survey roofs in Southsea across London and South East England. Across Portsmouth, we cover Southsea and the places around it.
Here we cover the PO5, PO4 and PO1 postcode area for roof leak investigations. Whether your property is on Bath Road, Liss Road and Beach Road or anywhere close by, we can help. We also cover the places around Southsea: Milton (1 mile north-east), Fratton (1 mile north), Kingston (1 mile north), Landport (1 mile north-west) and Baffins (2 miles north). Within a short drive, we also cover Hilsea (3 miles north), Wymering (4 miles north), Paulsgrove (5 miles north), Cosham (4 miles north), Drayton (4 miles north) and Farlington (5 miles north).
What’s near Southsea
Locally, jobs take us to homes and businesses close to The Festing pub, St Edmund's Catholic School and Mayville High School and the streets around them. Southsea’s nearest station is Fratton station, about 0.8 miles north. Other landmarks nearby include St. Mary's Hospital (1 mile north) and Southsea Castle (1 mile south-west). Open spaces near Southsea include Milton Locks.
Towns and villages near Southsea
What else we do in Southsea
How the survey works
When we arrive, we begin with a quick chat about the roof and anything that is worrying you. We then inspect everything that can be seen safely, from the ground, from windows, in the loft space and by drone where it applies. Most surveys take an hour or two at most homes, and more on a big or complicated roof. For a visit in Southsea, we need access to the loft, any rooms with leaks or stains, and the outside of the building. Mention gates, side passages and anything at the back. Weekday and weekend visits are available.
- You tell us where the water appears, when, and what the weather was doing.
- We examine the damp area and the rooms near it.
- From the roof space, we trace the water’s route where there is safe access.
- Outside, we check flashings, valleys, chimneys, gutters and flat roof details from every safe vantage point.
- We email a written report showing where the water most likely gets in.
How to prepare
- Check we can get to the back of the property
- For flats, check roof access has been agreed
- Buyers: confirm access with the estate agent or seller
Getting a price
When you are ready to go ahead, phone 07833 053749 or use the contact form. We’ll suggest a package, agree the price and find a date.
Read more
Southsea questions
Does being near the coast affect roofs in Southsea?
Yes, coastal weather is harder on roofs: there’s more wind, and more salt in the air. Ridges, verges, flashings and fixings are where it typically shows.
Is Southsea in the area you cover?
Yes. Our area covers London and South East England, and Southsea is part of that. You can call 07833 053749 or send us an email with the address and some details, and we will talk through which survey suits.
Will you photograph what you find?
Yes. Photographs are part of every report, so you can see each point for yourself.
What do I do with the report?
You will get the report by email, with photos and clear recommendations. The Standard Survey includes a follow-up consultation, and the Premium Survey an in-person consultation, so you can talk the findings through.
Do you climb onto every roof?
Only if it is safe. We inspect whatever is safely visible: from ground level, from windows and vantage points, from the loft space, from the roof itself where safe and by drone where it applies. The report says if anything couldn’t be seen.
Is it the same as a RICS Level 2 or Level 3 survey?
No. We check the roof, not the whole building, so it’s not a RICS Level 2 or Level 3 survey. It can sit alongside a RICS survey if you want both.
Are you structural engineers?
No. We note visible signs like sagging or deflection, but we do not carry out calculations or give an engineer’s opinion. Where an engineer is needed, we say so in the report.
For landlords and managing agents
Freeholders and residents’ companies use a roof report to plan and budget, with the most urgent items set out first.
If the property is let, the agent or a tenant can let us in. We survey on weekdays, Saturdays and Sundays, which can make access easier.
What this survey cannot tell you
Before you book, it is worth knowing what a survey won’t do:
- Carrying out the fix
- Whether rotten timbers meet design loads
- Leaks from plumbing, tanks or pipework rather than the roof
If you are not sure which survey you need, phone 07833 053749 or drop us an email and we’ll give you a straight answer. The full list of what we check.
What this survey covers
- Rooflights and dormers
- Flat roof details
- Chimney stacks
- Valleys and parapet gutters
- The roof space
- Lead flashings
- Slate and tile slopes