London and the South East
Roof Leak Investigation in Portsmouth
Roof leak investigations in all 19 towns and villages of Portsmouth, with prices that include VAT and surveys on weekdays and weekends.
Roof leak investigation in every part of Portsmouth
What it covers: tracing where water is getting into your roof. Find your town in the lists below for local details.
Larger towns
Our roof leak investigation service in Portsmouth
Some ‘leaks’ are not leaks at all. In a badly ventilated roof space, condensation can form under the roof and drip, leaving marks that look just like rainwater. Telling the two apart matters, since the cure for one will not solve the other. The pattern of the damp, the ventilation and the timing all help us decide. We are often asked to look into leaks that appear only in driving rain and condensation that looks like a leak, across the roof space, chimney stacks and lead flashings.
The visit has one job: to look at the leaking roof as closely as is safe and record what we find. Everything we note and photograph goes into the written report. The visit typically takes about one to two hours, more where the leak is intermittent or the roof is large.
- You get in touch with details of the leak and any photos.
- We look at the stain, the ceiling and the loft above it.
- We check the likely entry points outside, like flashings, valleys, chimneys and gutters.
- Moisture readings and thermal imaging are used where they help.
- We email a report with photos, the likely entry point and recommendations.
How our prices work
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how it can be reached and seen safely. Roof leak investigation starts from £150, including VAT.
What you get with us
- 98% of clients satisfied
- 5,000+ surveys completed
- We hold a CAA Flyer ID and Operator ID
- Over 20 years’ experience
Arrange a survey
Roof leak investigation starts from £150, including VAT. The exact figure depends on the roof and the package, so ring 07833 053749 or drop us an email with the details.
Near you in Portsmouth
Typical jobs here are in homes near Manor Infant School, Alexandra Park and St Wilfrid, among other places. Also close by are The Druids Arms (less than half a mile north-east), The Portsmouth Academy (within half a mile south-east) and St Edmund's Catholic School (0.7 miles south-west). The closest station to Portsmouth is Fratton station, roughly 0.9 miles south of the centre. Nearby you will also find Royal Portsmouth Hospital (0.7 miles south-west) and Charles Dickens Birthplace Museum (less than half a mile west). Green spaces nearby include Milton Locks and Portsdown Hill.
Roofs and weather across Portsmouth
Storm damage across Portsmouth is best recorded soon after it happens, so the report can separate fresh damage from older wear where the evidence allows. The insurer decides any claim.
The South East’s airspace includes flight restriction zones around several of its airports, so the Drone Safety Map is checked before any drone flight in Portsmouth. Flights that need permission only go ahead once it is given. Some of Portsmouth sits close to the sea, so wind can decide whether a drone flies or a roof can be reached safely. A windy forecast can mean a change of date.
Portsmouth: If you run a business near Tricorn Centre, finding where water is getting in quickly keeps disruption down. A roof leak in a hotel or guest house around Portsmouth means lost rooms as well as repairs.
Why roofs fail
Valleys carry a lot of water. Split linings, slipped valley tiles or debris can push water under the slates or tiles. The stain may appear well away from the valley itself.
Look out for signs like these:
- Damp on a chimney breast
- Water dripping from rafters or underlay
- Damp underlay across a wide area
- Brown rings on upstairs ceilings
Why get it checked now?
A leak rarely stays small. Wet timbers start to decay, plaster softens and insulation stops working. Finding the source early keeps the damage down.
Before booking any surveyor
- Is VAT included in the price?
- What the survey won’t cover
- Their drone registration, if they fly one
- How long they’ve been surveying roofs
DIY checks: what’s safe
The one thing to avoid is getting up close. Roofs are fragile and slippery, and falls from height are serious. That is where a survey comes in.
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can point to a blockage or a sagging run.
Practical tips
Over many surveys, some simple habits stand out:
- Write down the wind direction and rain when it leaks
- Mention earlier attempts to fix the leak
- Mention any plumbing above the damp area
- Protect furniture and flooring under the leak
With the Standard Survey you get a follow-up consultation, while Premium includes one in person. It is a chance to ask about anything in the report.
Check the loft after heavy rain, with care and a good torch. Watch for water marks, wet underlay and damp wood. Photograph anything new.
How the survey changes by roof type
Flat roof upstands and outlets
Flat roof water can travel under the covering before it shows. Moisture readings and thermal imaging can help narrow it down where conditions suit.
Lead flashings
Lead flashings seal the joints at chimneys, walls and dormers. Lifted, split or slipped lead is a common cause, and for flashings that have been patched with bitumen.
Portsmouth questions
Is this an asbestos survey?
No. Asbestos surveys and sampling are not something we do. The report may flag materials that could contain asbestos on buildings built or refurbished before 2000.
Is the repair included in the leak investigation?
This service finds and reports the cause, and the repair is separate. The report gives any roofer a clear brief.
How long will you be at the property?
Allow about 1–2 hours, more where the leak is intermittent or the roof is large. We will confirm what to expect when we arrange the visit.
What happens next?
The report arrives by email, with photographs and clear recommendations. With Standard there is a follow-up consultation; with Premium, an in-person consultation.
How do I arrange a roof leak investigation in Portsmouth?
To book, call 07833 053749 or email us and tell us the address and what you’d like to know. We’ll confirm the price and agree a day with you.
Are you insured?
Our cover is professional indemnity plus public liability, and details are available on request.
Is it the same as a RICS Level 2 or Level 3 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.