Southampton · London and the South East
Flat Roof Survey in St Denys
We take a careful look at the flat roof at your property in St Denys, and put it all in a written report with photos.
- Standing water left after rain
- Failed upstands where the roof meets a wall
- A sagging deck under the covering
How a flat roof survey works in St Denys
Standing water is one of the first things we look for on a flat roof. It can point to poor falls, a blocked outlet or a deck that is deflecting. The survey notes any ponding, the state of each outlet and any dips that hint at a sagging deck. Where the deck may be a structural issue, our report says a structural engineer should look at it. We survey upstands and outlets, EPDM rubber and felt flat roofs, and common reasons people get in touch are cracked or split membrane and a sagging deck under the covering.
Around a smaller place like St Denys, flat roofs typically cover extensions, garages and dormers. They’re small, but a leak over a kitchen extension can do a lot of harm. Knowing the covering and how it was laid tells you what to expect from it. From an upstairs window, look for standing water, splits and edges coming away.
How fast the report arrives depends on the package: Basic within 48 hours, Standard in 24–48 hours and Premium the same day.
- Place
- St Denys (SO17, SO18, SO14)
- Wider area
- Southampton
- Cost
- From £150 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Survey days
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
What a flat roof survey looks like in St Denys
St Denys lies within about 3 miles of the sea, where sea air brings more salt and stronger wind than inland. Coastal wind works at the edges of flat roofs, and salt air wears metal trims and fixings. About 1 mile north-east lies South Stoneham House, a reminder of how long the area around St Denys has been built on. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material.
Shop and office owners around Marlands Shopping Centre may find that the flat roofs over shops and commercial units are worth checking before a leak, not after. For landlords with property near St Denys station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
St Denys is about 1 mile north-east of Southampton, in Southampton. We carry out flat roof surveys in St Denys for houses, flats, blocks and commercial buildings. We cover towns and villages across Southampton, large and small.
Postcode districts we cover here for flat roof surveys: SO17, SO18 and SO14. We cover properties on Ivy Road, Lawn Road and Kent Road and the roads around them. St Denys sits on or near the A335 and A3035, which makes travel easy. We also cover the places around St Denys: Portswood (1 mile north-west), Bitterne Manor (1 mile south-east), Southampton (1 mile south-west), Bitterne Park (1 mile east) and Inner Avenue (1 mile south-west). Larger places within reach include Maybush (3 miles west), Coxford (3 miles west), Eling (4 miles west), Rownhams (3 miles north-west), Millbrook (3 miles west) and Weston (3 miles south).
Near you in St Denys
Around St Denys, our work takes us to homes and buildings near South Western Arms, Riverside Park and St Mary's Independent School and the streets around them. St Denys has its own railway station: St Denys station. A little further out are Royal South Hants Hospital (0.9 miles south-west) and Marlands Shopping Centre (1.5 miles south-west). Open spaces near St Denys include Netley Common.
Also near St Denys
More services for St Denys
Leave it or get it looked at?
Standing water on a flat roof rarely sorts itself out. Most often it means blocked outlets, poor falls or a deck that is dipping, and each wet season wears the covering further. Knowing the cause early gives you more choice over what to do. Around St Denys, a leak in an older house can soak into timbers and plaster, which is far harder to put right than the roof fault itself.
Prices start from £150, including VAT. Packages run from Basic at £150 through Standard at £250 to Premium at £400, with VAT included.
Why choose Independent Roof Survey in St Denys
- An independent look at the roof
- Photos and a written report every time
- Drones and thermal imaging where it applies
- Visits on any day of the week
See how roof surveys are priced and what we found on two real jobs.
Do you need a flat roof survey in St Denys?
No flat roof covering lasts for ever. Around 15 to 20 years is common for felt, while EPDM often lasts 30 to 50 years and GRP up to about 30, though workmanship and upkeep make a big difference. We can tell you how your roof is doing, whatever its age.
Problems we come across often include:
- Blisters and bubbles in the covering
- Pools of water lying on the roof
- Upstands pulling away from walls
- Signs of deflection in the roof deck
If you own one of the older houses in the streets near Church of St Denys, flat-roofed rear additions and dormers added over the years are worth checking.
Before booking anyone
- Which limits apply to the survey
- How they plan to inspect the roof safely
- Whether the inside of the roof is included
- How long the report takes to arrive
Common questions in St Denys
How do I find out if my home in St Denys is listed?
Your council is the best source, with Historic England’s list for listed buildings. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
Do you cover smaller places like St Denys?
Yes. St Denys is within the area we cover, which takes in towns, villages and rural addresses. We cover the whole of London and South East England. Just mention lanes, gates or anything else about the route as you book.
Can you inspect my roof with a drone?
Where it helps and the rules allow, yes. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and every flight depends on the airspace and the weather.
Can you test old roof sheets for asbestos?
Our survey does not include asbestos testing. Older buildings, from before 2000, may have asbestos in cement sheets or soffits. We note anything that could contain it, and a specialist asbestos surveyor should check it before it’s disturbed.
Can you survey a shared roof?
Yes. Shared roofs just need a little more planning. Mention it when you contact us and we will explain what’s needed.
Do you carry out surveys on Saturdays and Sundays?
We survey on any day from Monday to Sunday, during the day, which suits people who work during the week. Let us know your preferred days when booking.
Will you walk on the flat roof?
It depends on what’s safe: the roof itself where that’s safe, plus windows, vantage points and the rooms below. Fragile rooflights and fragile sheets are never walked on.
What affects the cost of flat roof surveys
Prices vary from roof to roof, for these reasons:
- Height and safe access
- The package you choose: Basic, Standard or Premium
- How big the roof is
- House, block, shop or office
Bigger, taller and commercial roofs take more time to survey, so the price reflects that. You’ll know the figure before booking.
Booking your survey
The more you let us know, the easier it is to price the survey. When you get in touch, it helps to mention:
- Why you want a survey: buying, a leak, a storm or new work
- Your timetable, like an exchange date
- Where the property is, with the postcode
- Any marks or damp showing indoors
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, ring 07833 053749 or send us an email with the address and the days you’d prefer.
What happens on the day
We do not take risks to get a closer look. Everything that can safely be seen is inspected, and anything we can’t see is noted in the report. Most visits take roughly 1–2 hours for a small flat roof at home, and longer for a large commercial one. In a smaller place like St Denys, as anywhere, the forecast plays a part: drone flights and thermal imaging need the right conditions, while a look from ground level and the loft can go ahead in most weather.
- First you give us the address, what the roof covers and any leaks you’ve noticed.
- We look at the roof from wherever it can safely be seen.
- The covering, falls, upstands, outlets, edge trims and rooflights are checked and photographed.
- Inside, we look for damp and staining under the roof where there is access.
- We send a written report with photos, the defects we found and what we recommend.
Before the survey
- Agree roof access with the managing agent if it’s shared
- Dig out any old roof reports or invoices
- Unlock side gates and any roof access doors
Getting a price
You can call us seven days a week, including Saturdays and Sundays. To book or ask a question, ring 07833 053749 or drop us an email.
Related advice
For landlords and managing agents
Letting agents can arrange access with tenants. We survey seven days a week, which can make access easier.
Businesses and commercial landlords can book us too. Larger roofs take longer.
When you need someone else
We only report everything that’s safely in view on the day, so there are some things a survey cannot cover:
- Hidden layers beneath the covering
- Areas we can’t see or reach safely, including fragile rooflights and sheeting
- A structural engineer’s assessment of the deck
If you are not sure which survey you need, phone 07833 053749 or email us and we will give you a straight answer before booking. What our survey covers.
Roof types and parts we check
- Upstands and outlets
- GRP fibreglass
- Single-ply membranes
- EPDM rubber
- Mastic asphalt
- Felt flat roofs