Portsmouth · London and the South East
Flat roof survey in Cosham, Portsmouth
Flat roof surveys in Cosham, backed by more than 20 years’ experience. Every survey ends with a written report and photos.
- Blocked or damaged outlets
- Cracked or split membrane
- Leaks around rooflights
What we do, step by step
We will ask a few questions first, about the roof’s history, any leaks and past repairs. Then the inspection itself takes about 1–2 hours at a typical home, and longer for a large or complex roof. A visit to a smaller place like Cosham is no different on the day: we look from ground level, from windows, from the loft and from the roof where it’s safe. It helps to show us anything you’ve already noticed.
- You send us the address and, for commercial roofs, an idea of the roof’s size.
- We check the rooms or spaces under the roof for staining where there is access.
- We view the roof from safe positions and never walk on fragile surfaces.
- Each defect is photographed and its likely cause noted.
- You get a report setting out the condition and our recommendations, in order of urgency.
Before we arrive
- Point out any leaks or damp patches
- Jot down any questions you want answered
- Buyers: confirm access with the estate agent or seller
Book a survey
We confirm the price for your roof before booking, so you know where you stand. Our price is from £150, including VAT. To book, call 07833 053749 or drop us an email.
Related advice
How a flat roof survey works in Cosham
Each flat roof is looked at from the safest viewpoints we have: on the roof where it is safe, from windows and higher ground, and from the rooms below where we can reach them. We do not walk on fragile rooflights or fragile roof sheeting. If part of the roof cannot be seen or reached safely, the report says so, so the limits of the survey are clear. We survey felt flat roofs, GRP fibreglass and mastic asphalt, and the problems we’re asked to look at most are loose or cracked edge trims and signs of deflection in the roof deck.
In a smaller place like Cosham, some flat roofs sit in the open, so wind catches loose edges and trims. Sun on a flat roof also ages felt and bitumen. The signs are splits, blisters and edges coming away, along with water that sits after rain. Standing water that lingers for days after rain is another sign worth watching for.
After the visit, you get a written report with photos, sent by email. It sets out the condition of the flat roof, any defects and our written recommendations.

- Place
- Cosham (PO6, PO3, PO2)
- Wider area
- Portsmouth
- Prices
- From £150 inc. VAT
- Report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
Practical tips
Here are a few things we’d tell any owner, before and after a survey:
- Limit foot traffic on the covering
- Note the date and type of any roof work
- Check ceilings under the roof for damp patches
- Treat rooflights and old sheeting as fragile
Once we’ve been, the findings are written up with photos. It explains the covering, its condition and every defect, and what we recommend. Basic reports arrive within 48 hours, Standard reports in 24 to 48 hours and Premium reports the same day.
Keep outlets, gutters and hoppers clear, especially after the leaves fall. Water that can drain away does far less harm than water that sits.
What a survey costs
Prices always include VAT. What changes the price is:
- House, block, shop or office
- Any need for thermal images or a drone flight
- How tall the building is and how easy the roof is to see
- Roof area
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how safely it can be seen. Our price is from £150, including VAT.
Helping us price your survey
We’ll usually ask about:
- The style of property, from a terrace to a block
- Whether there’s a loft hatch, a shared roof or tricky access
- Any photos you have, taken from ground level or a window
- Where the property is, with the postcode
When you are ready to go ahead, call 07833 053749 or use the contact form. We’ll suggest a package, agree the price and find a date, weekday or weekend.
What you can safely check yourself
Your own check is a good start, but it isn’t a survey. You will not see flashings, valleys or the backs of chimneys properly from the ground, and those are details a survey looks at closely.
It helps to keep a record: dates of leaks, photos from the ground and any work done on the roof. Send it with your enquiry and it will help the survey.
Surveys for landlords and agents in Cosham
Landlords and agents in Cosham book surveys as well as homeowners. A photo-illustrated written report gives you a clear record of the flat roof.
An agent can book and manage the survey for a landlord. Access is agreed with the tenant ahead of time.
Different roofs, different checks
Mastic asphalt
Asphalt roofs are common on older flats, walkways and commercial buildings. The survey checks for crazing, cracking, blistering and splits where the asphalt turns up the walls.
Rooflights and upstands
Rooflights and fragile sheets are never walked on. We view them from safe positions and photograph what we see.
What a flat roof survey looks like in Cosham
The coast is about 1 mile or less from Cosham, and being near the sea means more wind and salt than a roof inland would face. Wind can catch loose edges and trims on a flat roof, and salt air is hard on metal trims, flashings and fixings. Warblington Castle, about 4.4 miles east, is one of the historic houses in the wider area around Cosham. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead.
If yours is one of the older homes in the streets near Church of St Philip, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear. Take a building like Court Lane Junior Academy: ponding and blocked outlets on a wide flat roof are worth catching before the next wet season. If you look after a shop, office or commercial unit, for instance near Tricorn Centre, a flat roof over a business is out of sight and out of mind until it leaks.
Cosham is about 2 miles south-west of Purbrook, in Portsmouth. If you’re in Cosham, booking works exactly as it does anywhere else: a call or an email, a price, then a date. We cover towns and villages across Portsmouth.
Every address in PO6, PO3 and PO2 is within our area for flat roof surveys, from the main roads to the quietest streets. We cover properties on Dean Road, Park Lane and Elgin Road. With the A397 close by, Cosham is easy for us to reach. We also cover the places around Cosham: Wymering (1 mile north-west), Hilsea (1 mile south), Drayton (1 mile east), Widley (1 mile north-east) and Paulsgrove (1 mile west). We also work in nearby towns such as Southsea (4 miles south), Milton (3 miles south), Landport (3 miles south), Portsea (3 miles south-west), Portsmouth Point (4 miles south-west) and Fratton (3 miles south).
Near you in Cosham
Around Cosham, our work takes us to homes and buildings near The First Post pub, Alexandra Park and Springfield School. There is a railway station in Cosham itself: Cosham station. Nearby you’ll also find Tricorn Centre (2.9 miles south) and World War I Remembrance Centre (1 mile south-east). Open spaces near Cosham include Southmoor Nature Reserve and Portsdown Hill.
Places near Cosham
Other services in Cosham
FAQs for Cosham
Do you cover smaller places like Cosham?
Yes, we do. Our area covers London and the South East, from towns to the smallest villages. The journey is planned ahead, so it helps to know about access.
Is my home in Cosham listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
When does the report arrive?
Each package has its own report time. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. Mention any deadline as you book.
Do you check flat roofs for asbestos?
We do not test for asbestos. Where a roof has materials that might contain asbestos, like old cement sheeting, the report flags them so a specialist asbestos surveyor can check them.
What will the report tell me?
It sets out what we found, why it matters and what we recommend, backed by photos. Anything we couldn’t see safely is noted too.
What happens next?
We email you the written report with photographs and recommendations. It’s yours to share with a seller, insurer, roofer or managing agent, whichever applies.
Do you survey on Saturdays and Sundays?
We survey seven days a week: weekdays, Saturdays and Sundays. Just tell us the days that suit you.