Kent · London and the South East
Flat roof survey in Derringstone, Kent
Surveys of flat roofs on homes, extensions and commercial buildings for Derringstone, from an experienced roof surveyor. You get a clear written report with photographs.
- Ponding water that doesn’t drain away
- Dips that suggest the deck is deflecting
- Damaged trims at the roof edge
Flat roof survey in Derringstone
Offices, shops, industrial units and blocks of flats often sit under large flat roofs. On a roof like this, a survey shows where the covering is wearing, where water is ponding and which outlets need attention. The photographed record helps you plan and budget for work. We quote commercial roofs on their size and how they’re reached, so please phone 07833 053749 or drop us an email with the address and an idea of the roof’s size. If you’re worried about gaps at upstands and abutments and ponding water that doesn’t drain away, a survey will tell you what’s going on, on mastic asphalt, felt flat roofs and upstands and outlets alike.
Older buildings in small places like Derringstone may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. If you are planning work, check with the council first. Finding out what state the roof is in gives you the facts to plan with. Listed building consent is needed for changes that affect a listed building’s special interest.
The Standard Survey adds 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
- Derringstone (CT4)
- Region
- Kent
- Cost
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- When we survey
- Weekdays and weekends
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
What we do, step by step
Photographs are taken throughout the visit, so you can see in the report what we found and where. Close-ups come from the safest viewpoint available, including by drone where it is applicable and the weather allows. A typical visit takes between one and two hours for an extension, garage or dormer roof, and around 3–4 hours for a commercial flat roof. For a village or hamlet like Derringstone, the journey is planned ahead of time: let us know about narrow lanes, gates, long drives and where we can park. The roof is looked at from the ground, from windows, from the loft where there’s safe access and from the roof where it is safe.
- We start with the address and, on larger roofs, the roof area and access.
- Inside, we look for signs of water under the roof where we can reach.
- We view the roof from safe positions and never walk on fragile surfaces.
- We record every defect with a photo and its likely cause.
- You get a report setting out the condition and our recommendations, in order of urgency.
How to prepare
- Buyers: confirm access with the estate agent or seller
- Check pets are kept safely away
- Note where any stains or damp appear
How to book
Once you know what you need, ring 07833 053749 or drop us an email. From there it’s a case of choosing a package, agreeing the price and fixing a day, weekday or weekend.
Read more
How we price flat roof surveys
Survey packages start from £150, inc. VAT. The price for your roof depends on:
- Building height and the viewpoints available
- If the survey needs thermal imaging or a drone
- The package you choose: Basic, Standard or Premium
- How complicated the roof is, with its valleys, chimneys and parapets
For a price for your roof in Derringstone, ring 07833 053749 or drop us an email and tell us about the roof. The price is agreed before a date is set.
What to let us know when you contact us
Before you get in touch, it is useful to have:
- Any marks or damp showing indoors
- Anything about access we should know
- The style of property, from a terrace to a block
- Any photos you have, taken from the ground or a window
Photos help, if you have them. Take them safely from ground level or a window. To get started, call 07833 053749 or drop us an email.
Do you need a flat roof survey in Derringstone?
People go onto flat roofs for all sorts of reasons: to clean windows, fit aerials or air conditioning units, or reach a gutter. Each visit can damage a covering not made for regular foot traffic. Fixings added through the covering often start leaks too.
People typically book a survey after spotting something like this:
- Failed seals around rooflight kerbs
- Outlets choked with leaves and silt
- Edge trims that have lifted or split
- Ponding water that doesn’t drain away
If you let a flat or house near Snowdown station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Before booking any roof surveyor
- How they plan to inspect the roof safely
- Whether VAT is in the quoted price
- What’s outside the scope of the survey
- What follow-up you get after the report
When you need someone else
Our survey isn’t a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Parts of the roof that are not safe to walk on or view
- What’s under the membrane without opening it up
- Whether old sheeting or boards contain asbestos
Not sure which survey suits your roof? You can call 07833 053749 or use the contact form and we will tell you. What a survey covers and does not.
What we look at
- EPDM rubber
- Single-ply membranes
- Upstands and outlets
- GRP fibreglass
- Felt flat roofs
- Mastic asphalt
Why act early in Derringstone
Most flat roofs are out of sight, so they’re easy to forget. Many owners only find out a roof is worn out when water comes through. A survey every few years stops that from catching you out. Older cottages and farmhouses around Derringstone can have roof timbers that have been there a very long time, and water through a failed covering can rot timber if it’s left.
Flat roof survey starts from £150, including VAT. Basic starts from £150, Standard from £250 and Premium from £400, VAT included.
Why book with us
- Drone and thermal imaging surveys available
- Over 5,000 surveys carried out
- 20+ years’ experience
- An independent look at the roof
Take a look at what a roof survey costs and what we found on two real jobs.
Tips from our surveys
Getting the most from a flat roof survey starts before we arrive and carries on afterwards. Tips:
- Limit foot traffic on the covering
- Never stand on rooflights or fragile sheeting
- Book a survey every few years
- Note the date and type of any roof work
For landlords and building managers, the report is a dated record of the roof’s condition. It helps when planning maintenance budgets, and it gives a baseline to compare against next time.
After heavy rain, look at the roof from an upstairs window if you can. Water still lying a day or two later is worth getting looked at.
What a flat roof survey looks like in Derringstone
Many older homes in Kent have handmade clay tiles, including Kent peg tiles held by pegs through two holes, and tile-hanging on their upper walls. Kent’s older buildings take in oast houses and timber-framed Wealden hall houses as well. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. Goodnestone Park, about 4.2 miles north-east, is one of the historic houses in the wider area around Derringstone. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead, and a listed home or one in a conservation area may need consent for changes of material.
For an older house near a landmark such as Church of St John the Baptist, flat-roofed rear additions and dormers added over the years are worth checking. Anyone responsible for a site like Barham Church of England Primary School will know that schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks.
Derringstone is about 6 miles south-east of Canterbury, in Kent. We provide flat roof surveys for householders, landlords and businesses in Derringstone and nearby. Derringstone is one of the places in Kent where we work for flat roof surveys. We also survey roofs in Canterbury.
We work across the CT4 postcode area for flat roof surveys. Streets in the area include Derringstone Street, The Causeway and Railway Hill, and we cover them all. We also cover Heart's Delight (1 mile south-west), Barham (1 mile north), Gravel Castle (1 mile east), Out Elmstead (1 mile north) and Marley (1 mile north-west). Larger places within reach include Ashford (13 miles west), Canterbury (6 miles north-west), Dover (8 miles south-east), Folkestone (8 miles south), Ramsgate (15 miles north-east) and Whitstable (12 miles north-west).
Around Derringstone
Around Derringstone, our work takes us to homes and buildings near Jumping Downs. The nearest railway station is Snowdown station, roughly 2.6 miles east of the centre. Well-known places in the area include Kent and Canterbury Hospital (5.3 miles north-west).
Nearby places to Derringstone
Other services in Derringstone
Your questions about flat roof surveys in Derringstone
Is my home in Derringstone 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 are planning to re-roof in a different material.
Do you cover Derringstone?
Yes. We survey roofs across London and South East England, and Derringstone is part of that. Just phone 07833 053749 or email us and tell us about the property.
Does someone need to be in?
Not necessarily. If we only need the outside, we can agree that beforehand, but anything inside needs someone there to give access.
How much does a flat roof survey cost in Derringstone?
Our price is from £150, including VAT. Our Basic Survey starts from £150, the Standard Survey from £250 and the Premium Survey from £400, all including VAT.
Does a flat roof survey replace a RICS survey?
No. Our survey covers the flat roof only. It is not a RICS Level 2 or 3 survey of the whole building, and it isn’t a structural engineer’s report. It frequently sits alongside a buyer’s building survey.
Can you survey any kind of flat roof?
We survey felt and built-up roofs, mastic asphalt, EPDM rubber, GRP fibreglass and single-ply PVC and TPO. If you do not know what your roof is, we’ll identify it on the day.
Do you take photos of the roof?
Yes. The report includes photographs of what we found, so you can see each point for yourself.