Portsmouth · London and the South East
Portsea Roof Leak Investigation
An experienced roof surveyor for roof leak investigations in Portsea. More than 20 years and over 5,000 surveys across London and South East England.
- Condensation that looks like a leak
- Water that shows only in certain storms
- Water dripping from rafters or underlay
How a roof leak investigation works in Portsea
Moisture readings and thermal imaging are used where they’re useful. Moisture detection confirms where timbers, plaster or insulation are damp. A thermal camera shows patterns of temperature rather than water, so we confirm what it suggests with moisture readings. Moisture detection is included in the Standard Survey, and thermal imaging in Premium. The best thermal results come after a sunny day, with a dry roof and little wind. We are often asked to look into damp walls below an overflowing gutter and drips in the loft during heavy rain, on rooflights and dormers, chimney stacks and lead flashings.
Chimney stacks on older houses around places like Portsea can let water in, through worn flaunching, failed pointing or lifted flashings. Damp in a chimney breast can have more than one cause, so it isn’t always obvious where it starts. The stack, its flashings and the loft space beside it are all worth checking.
The report is yours to share with whoever needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent.
- Place
- Portsea (PO1, PO12, PO5)
- Region
- Portsmouth
- Cost
- From £150 inc. VAT
- Reports
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
Surveys for landlords and agents in Portsea
Businesses and commercial landlords can book us too, including offices, shops and units. Bigger roofs take more time, and they’re priced for the size.
Buyers’ agents can book surveys on behalf of their clients. Reports are emailed, so they’re easy to pass on.
Nearby places to Portsea
What else we do in Portsea
Leaks and storm damage in Portsea
The coast is about 1 mile or less from Portsea, and places near the sea get more salt in the air and more wind than inland. Driving rain off the sea can be pushed into gaps that stay dry in calmer weather, and salt air slowly wears metal fixings. Older buildings may be listed or sit in a conservation area. Historic England’s list shows listed buildings, and the council can say whether a street is in a conservation area. In either case, a change of roofing material may need consent.
If you own a rental within reach of Portsmouth Harbour station, a tenant living with a leak needs the cause found, not just the stain painted over. The streets around a church such as St Ann's Church are often among the oldest in a place, and if your home is one of the older ones nearby, water on an older roof tends to find its way in at the lead, the valleys or the chimney.
Portsea is about 1 mile south-west of Portsmouth, in Portsmouth. We survey roofs in Portsea and the surrounding area as part of our work across London and the South East. Across Portsmouth, we cover Portsea.
Surveys in PO1, PO12 and PO5 work the same way as everywhere else we cover. Local streets include Main Road, Park Road and Scott Road, and we cover them all. We also cover the places around Portsea: Portsmouth Point (1 mile south), Clayhall (2 miles south-west), Haslar (2 miles south-west), Alverstoke (2 miles south-west) and Privett (2 miles west). Larger places within reach include Hilsea (3 miles north-east), Wymering (4 miles north-east), Paulsgrove (4 miles north), Cosham (3 miles north-east), Drayton (4 miles north-east) and Farlington (5 miles north-east).
What’s near Portsea
Locally, jobs take us to homes and businesses close to The Ship & Castle pub, St Jude's CofE Primary School and Charter Academy and the streets around them. There’s a railway station in Portsea itself: Portsmouth Harbour station. A little further out are Royal Portsmouth Hospital (0.8 miles east) and Genesis Expo Creationist Museum (less than half a mile south). The countryside around Portsea includes Milton Locks and Portsdown Hill.
Honest limits
Without opening up the roof, some things stay hidden, so a survey has limits:
- Leaks that only appear in weather we can’t recreate
- Defects hidden under coverings or inside walls without opening up
- Structural calculations (that’s a structural engineer’s job)
If in doubt, call 07833 053749 or use the contact form and we will recommend the right survey before you book. The full list of what we check.
What this survey covers
- Chimney stacks
- Flat roof details
- The roof space
- Lead flashings
- Valleys and parapet gutters
- Slate and tile slopes
- Rooflights and dormers
Do you need a roof leak investigation in Portsea?
A roof valley collects the rain from two slopes. Split linings, slipped valley tiles or debris can push water under the slates or tiles. Leaks from valleys often show up some distance away inside.
Typical things we are asked to look at include:
- Stains around a skylight
- Wet patches on loft insulation
- Staining where a gutter or parapet meets the wall
- Leaks that appear only in driving rain
For site and facilities teams at buildings such as Portsmouth Grammar School, water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot.
Choosing a roof surveyor
- Whether VAT is in the quoted price
- What’s outside the scope of the survey
- What happens after the report arrives
- Their track record with similar roofs
How the survey works
The aim of the visit is simple: to look at the leaking roof as closely as is safe and record what we find. Notes and photos go into the written report. It usually takes about one to two hours for most houses, with bigger or more complicated roofs taking longer. For a survey in Portsea, we agree the time, the access and parking before the day. Visits can be on weekdays, Saturdays or Sundays. If there are outbuildings or garages you want looked at, mention them.
- You pick a Basic, Standard or Premium Survey.
- We agree a date, including weekends.
- We inspect inside and out, starting from the stain.
- Moisture detection and thermal imaging are used where your package includes them and they help.
- The report explains the likely entry point and what needs attention.
Before the survey
- Have any paperwork from past roof work to hand
- Leave a clear route to the loft
- Let us know about parking near the property
Booking a survey
To arrange a survey, phone 07833 053749 or email us and tell us the address and what’s prompted the survey. You will know the price before anything is booked.
Read more
Checking the roof from the ground
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it, which helps when we look at the roof.
Inside, the loft is a good place to look, with care. Take a torch and only step on boards or joists, and look for staining, damp timber or daylight coming through.
How we price roof leak investigations
The price reflects the time and kit the roof needs. The main factors are:
- The size of the roof
- Commercial roofs and larger buildings
- The height of the building and how the roof can safely be seen
- Chimneys, valleys, parapets and other details
Simple, low roofs take less time to survey than tall or complicated ones, and the package matters as well. We’ll give you the figure before anything is booked.
Booking your survey
If you can, have these to hand when you get in touch:
- Your postcode, so we can check access and travel
- Your timetable, like an exchange date
- How the loft is reached, if there is one
- Any marks or damp showing indoors
You can call us seven days a week, including Saturdays and Sundays. For a price or to book, ring 07833 053749 or email us.
Questions from Portsea
Do you cover smaller places like Portsea?
Yes, we do. We cover the whole of London and South East England, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is my home in Portsea 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. It matters most if you’re planning to re-roof in a different material.
Can thermal imaging help find my roof leak?
We use thermal imaging where it helps, and it’s included in our Premium Survey. It shows temperature differences, not water itself, so anything it suggests is checked with moisture readings.
Can you survey a shared roof?
Yes, as long as access is agreed. Roofs over flats are often shared, so we need permission from the freeholder or managing agent. We can only inspect what we’re given access to.
Is the repair included in the leak investigation?
The investigation is about finding the cause. The repair itself is a separate job. You get a report with photos showing where the water is getting in and what needs attention, which whoever carries out the work can follow.
What happens next?
You’ll get the report by email, with photographs and clear recommendations. The Standard Survey includes a follow-up consultation, and the Premium Survey an in-person consultation.
Will I get photos?
Yes. Photos are part of every report.