Roof surveys across London and the South East 07833 053749info@independentroofsurvey.co.uk

Hampshire · London and the South East

Flat roof survey in Portchester, Hampshire

Flat roof surveys for homes and businesses in Portchester. We’ve completed more than 5,000 surveys across London and the South East.

  • Damaged trims at the roof edge
  • Blistering in felt or asphalt
  • Failed upstands where the roof meets a wall

Flat roof surveys near Portchester

Leave it or get it looked at?

A small split in a flat roof is typically a modest job when it is found early. Leave it, and water can get into the insulation and deck, which can turn a patch into a replacement. Surveying it now tells you where you stand. Arranging work in a smaller place like Portchester is easier with notice than in an emergency. A survey gives you that notice.

There are three survey packages: Basic from £150, Standard from £250 and Premium from £400, all inc. VAT. The price for your roof depends on its size, access and what you want to find out.

What you get with us

  • Covered by professional indemnity and public liability insurance
  • CAA-registered drone operator (Flyer ID and Operator ID)
  • Satisfaction rate of 98%
  • A photo-illustrated written report

Read how roof surveys are priced or two real surveys.

About our flat roof survey in Portchester

Ponding is frequently the first sign that something on a flat roof isn’t right. It can mean the falls were never right, an outlet is blocked or the deck has started to sag. We record where water sits, check the outlets and look for dips that suggest deflection. Where the deck may be a structural issue, our report says a structural engineer should look at it. If you’re worried about ponding water that doesn’t drain away and cracked or split membrane, we can find out what’s behind it, whatever the roof.

In smaller places like Portchester, flat roofs are mostly on extensions, garages, porches and dormers. They’re small, but a leak over a kitchen extension can do a lot of harm. What it’s covered in, and how well it was laid, decides what it needs, from felt and asphalt to EPDM rubber and GRP. From an upstairs window, look for standing water, splits and edges coming away.

With the Standard Survey, you also get moisture detection, a structural check and a follow-up consultation. The Premium Survey adds thermal imaging, drone inspection where applicable, structural analysis and an in-person consultation.

Place
Portchester (PO16, PO6, PO17)
Wider area
Hampshire
Prices
From £150 inc. VAT
Your report
Written, with photos, emailed to you
Survey days
Monday to Sunday, daytime
Cover
Professional indemnity and public liability
Telephone
07833 053749
Page updated
27 October 2026
Illustration of ponding water on a flat roof above an office building

How the survey changes by roof type

EPDM rubber

EPDM frequently lasts 30 to 50 years, but it relies on its seams, trims and upstands being well finished. We look closely at each of those details.

GRP fibreglass

GRP roofs can last up to about 30 years when they’re laid well. Hairline cracks over board joints are an early warning we look out for.

What this survey can’t tell you

It is a careful look at the flat roof, not the whole story. Its limits include:

  • Structural calculations, which need a structural engineer
  • Fragile surfaces, which we do not walk on
  • A fixed date for when the roof will need replacing

If in doubt, call 07833 053749 or use the contact form and we will recommend the right survey before booking. The full list of what we check.

Roofs we survey in Portchester

  • Felt flat roofs
  • GRP fibreglass
  • EPDM rubber
  • Upstands and outlets
  • Mastic asphalt
  • Single-ply membranes

Before and after the survey

From years of surveys, a few habits stand out:

  • Keep records of when the roof was laid and what work has been done
  • Watch the ceilings below the flat roof for stains
  • Check from a window for ponding after heavy rain
  • Keep outlets clear of leaves and moss

You get the report by email and can pass it to a roofer, your solicitor, the seller or your managing agent. It is written in plain English, with a photo of each defect, so anyone reading it can see what we saw.

Keep foot traffic on a flat roof to a minimum. Where someone does need access, ask them to use boards or a protected route, and to keep well clear of rooflights and fragile sheeting.

What we do, step by step

The visit has one job: to see as much of the flat roof as can safely be seen and record it clearly. Notes and photos go into the written report. The visit typically takes about 1–2 hours for a small flat roof at home, and longer for a large commercial one. For a survey in Portchester, we agree the time, the access and parking before the day. Weekday and weekend visits are both possible. If there are outbuildings or garages you want looked at, mention them.

  1. We start with the address and, on larger roofs, the roof area and access.
  2. We check the rooms or spaces under the roof for staining where there is access.
  3. We view the roof from safe positions and never walk on fragile surfaces.
  4. Each defect is photographed and its likely cause noted.
  5. You get a report setting out the condition and our recommendations, in order of urgency.

How to prepare

  • Show us where any leaks or stains appear
  • If it is not your property yet, arrange access through the agent
  • Tell us about parking before the day

Booking a survey

Unsure which package suits your roof? It’s easiest to call 07833 053749 or drop us an email and describe the roof and why you want it surveyed. We will talk you through the options and what they cost.

Ask for a survey

Advice

Portchester: your questions answered

Does a conservation area affect roof work in Portchester?

The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.

Do roofs near the sea, like those around Portchester, take more of a battering?

Often, yes. Portchester is within about 1 mile of the sea, and coastal roofs tend to see faster wear on metal parts and more wind lifting loose pieces.

Do you look for flat roof leaks?

We check the covering and every detail where leaks commonly start, recording anything that could let water through. Where the source is not obvious, a roof leak investigation or electronic leak detection may be the next step.

What does a roof survey cost?

Our price is from £150, including VAT. The final figure depends on the roof and the package you choose, confirmed before anything is booked.

Will you photograph what you find?

Yes. The report includes photos of what we found, so you can see exactly what each finding refers to.

What will the report tell me?

It sets out what we found, why it matters and what we recommend, backed by photographs. It also says if any part of the roof couldn’t be seen safely.

Do you use drones?

Where it’s applicable and safe, yes. We are a CAA-registered drone operator (Flyer ID and Operator ID), flying a sub-250g drone. Drone inspection is part of the Drone Roof Survey and the Premium Survey, where applicable.

Can I check my roof myself?

During heavy rain, look at the gutters from ground level or a window. Overflowing water can point to a blockage or a sagging run.

What you can’t do safely is get up close. Slates, tiles, flat roofs and rooflights can give way. That part is for a survey, using safe viewpoints and a drone where applicable.

Flat roof surveys around Portchester

Portchester lies within about 1 mile of the sea, so there is more wind and more salt in the air than further inland. On a flat roof near the sea, edge trims and upstands take the brunt of the wind, and metal parts corrode faster. Before planning roof work on an older home, find out whether it is listed or in a conservation area. Listed building consent covers changes to a listed building’s special interest, and an Article 4 direction can bring extra controls in a conservation area.

If your house is among the older ones in the streets near Church of St Mary, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear. Landlords with a home close to Portchester station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak. Take a building like Castle Primary School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.

Portchester is about 3 miles north-east of Gosport, in Hampshire. Anywhere in Portchester, we can carry out flat roof surveys at your property. Our area takes in places right across Hampshire.

Here we cover the PO16, PO6 and PO17 postcode area for flat roof surveys. Streets in the area include Cow Lane, Hill Road and Ralph Road, all of which we cover. Close by, we survey roofs in Boarhunt (2 miles north-west), Southwick (2 miles north), Elson (2 miles south-west), Wallington (2 miles west) and Priddy's Hard (2 miles south). Within a short drive, we also cover Gosport (3 miles south-west), Havant (6 miles east), Eastleigh (13 miles north-west), Fareham (3 miles west), Horndean (7 miles north-east) and Chandler's Ford (15 miles north-west).

What’s near Portchester

Around Portchester, our work takes us to homes and buildings near Portchester Community School and The Cormorant pub, among other places. The closest station to Portchester is Portchester station, about 0.5 miles north-west of the centre. Nearby you will also find Portchester Castle (less than half a mile south-east) and Queen Alexandra Hospital (2.3 miles east). For a walk, there’s West of the River Alver and Portsdown Hill.

Map of Portchester © OpenStreetMap contributors
20+ yearsRoof survey experience
5,000+ surveys98% customer satisfaction
Drones and thermal imagingCAA-registered drone operator
Fully insuredProfessional indemnity and public liability
Reports from £150Prices include VAT