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

West Sussex · London and the South East

Flat roof survey in Keynor Estate, West Sussex

Flat roof surveys across Keynor Estate, backed by more than 20 years’ experience. You get a clear report with photos.

  • Failed seals around rooflight kerbs
  • Outlets that hold water back
  • Standing water left after rain

Book a flat roof survey in Keynor Estate

Flat and commercial roofs around Keynor Estate

Keynor Estate lies within about 2 miles of the sea, where sea air brings more salt and stronger wind than inland. Wind can catch loose edges and trims on a flat roof, and salt air is hard on metal trims, flashings and fixings. What can be done to an older roof may depend on listing or a conservation area. Your council and Historic England’s list will tell you where you stand, before anyone quotes for re-roofing.

If you let a flat or house near Chichester station, the flat roof over a let home is worth a look before it becomes a tenant complaint. Take an older house close to St Mary Our Lady Sidlesham: flat-roofed rear additions and dormers added over the years are worth checking. Anyone responsible for a site like Sidlesham Primary School will know that large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.

Keynor Estate is about 2 miles north of Selsey, in West Sussex. We visit Keynor Estate as part of our work across West Sussex, for houses, flats and commercial buildings. Keynor Estate is one of the towns and villages in West Sussex we cover. You can also see our page for Portsmouth.

Every address in PO20 is within our area for flat roof surveys, from the main roads to the quietest streets. If you need a flat roof survey at a property on Chalk Lane and Cow Lane or anywhere close by, we can survey it. Other places close to Keynor Estate include Sidlesham (1 mile north-east), Street End (1 mile north), Church Norton (2 miles south-east), Sidlesham Common (2 miles north) and Pagham (2 miles east). Larger places within reach include Bognor Regis (5 miles east), Chichester (5 miles north), Littlehampton (12 miles east), Emsworth (8 miles north-west), Rustington (13 miles east) and Angmering (14 miles east).

Landmarks near Keynor Estate

We work in homes and buildings around The Academy. For rail, the closest station is Chichester station, about 4.4 miles north of the centre. Other landmarks nearby include Selsey Lifeboat Museum (2.9 miles south) and St Richard's Hospital (5.2 miles north).

Map of Keynor Estate © OpenStreetMap contributors

Flat roof survey in Keynor Estate

A flat roof leak often travels before it shows on the ceiling. It may start at a split, a lifted seam or a failed upstand well away from the damp patch. Our survey covers the whole roof, not just the part above the mark, and photograph anything that could let water in. A roofer can then start from a clear picture of the problem. We are often asked to look into gaps at upstands and abutments and blocked or damaged outlets, on single-ply membranes, GRP fibreglass and felt flat roofs.

Some older homes in villages like Keynor Estate are 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. Knowing the roof’s condition is the starting point. Listed building consent is needed for changes that affect a listed building’s special interest.

The report is written in plain words, so you don’t need to be a roofer to follow it. Photos show what each point refers to.

Illustration of a written roof report with a magnifying glass and a ticked clipboard
Where
Keynor Estate (PO20)
Region
West Sussex
Price
From £150 inc. VAT
Reports
Written, with photos, emailed to you
Survey days
Weekdays and weekends
Insured
PI and public liability insurance
Phone
07833 053749
Last updated
27 October 2026

Landlord and commercial surveys in Keynor Estate

Businesses and commercial landlords can book us too. Bigger roofs take more time.

Shared roofs need a little more planning: we need access agreed with the building owner or managing agent. Tell us about it when you book and we’ll plan the survey around it.

What this survey can’t tell you

Before booking, it is worth knowing what a survey won’t do:

  • Fragile surfaces, which we do not walk on
  • What’s under the membrane without opening it up
  • Testing older roof sheets for asbestos

If in doubt, phone 07833 053749 or use the contact form and we will point you to the right survey before you book. What a survey covers and does not.

What we check

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

Practical tips

Getting the most from a flat roof survey starts before we arrive and carries on afterwards. Some tips:

  • Note any new marks on ceilings beneath the roof
  • Keep records of when the roof was laid and what work has been done
  • Book a survey every few years
  • Keep outlets clear of leaves and moss

The report is emailed to you, ready to share with a roofer, the seller or a managing agent. Each defect is described in plain words and shown in a photo, so anyone reading it can see what we saw.

Small defects are simpler to deal with while they’re still small. Prompt repairs tend to add years to a flat roof.

How the survey changes by roof type

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.

Single-ply membranes

On single-ply roofs, the welds between sheets are the key detail. We look at seams, corners and the joints around outlets and upstands.

How the survey works

We do not take risks to get a closer look. We inspect whatever is safely visible, and if part of the roof can’t be seen, the report says so. The survey usually takes between one and two hours at most homes, and more on a big or complicated roof. Somewhere as small as Keynor Estate, access is often the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Visits can be on weekdays, Saturdays or Sundays.

  1. We start with the details: the address, the roof’s use and any leaks or stains.
  2. We check the roof from wherever it can safely be seen.
  3. The covering, falls, upstands, outlets, edge trims and rooflights are checked and photographed.
  4. Inside, we look for damp and staining under the roof where there’s access.
  5. We send a written report with photos, the defects we found and what we recommend.

How to prepare

  • Make a note of anything you’d like us to look at
  • Gather any invoices or paperwork from past roof work
  • Tell us where we can park nearby

Book a survey

If you have photos of the roof, send them over. Pictures from the ground or a window are fine; never climb up to get a better view. To get started, call 07833 053749 or email us.

Ask for a survey

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How we price flat roof surveys

Survey packages start from £150, inc. VAT. The price for your roof depends on:

  • The height of the building and how the roof can safely be seen
  • How complicated the roof is, with its valleys, chimneys and parapets
  • The package you choose: Basic, Standard or Premium
  • Whether it’s a home or a commercial building

The Premium Survey includes thermal imaging and drone inspection where applicable, from £400 with VAT included. We can help you choose the package that fits what you need to know.

Helping us price your survey

There’s no need for technical words. It’s enough to tell us:

  • Where the property is, with the postcode
  • Access details, like a loft hatch or a shared roof
  • Pictures from the garden or a window, if you have them
  • The kind of building and roof involved

We survey roofs on weekdays, Saturdays and Sundays. To find a date that works for you, ring 07833 053749 or drop us an email.

Keynor Estate questions

Is Keynor Estate within the area you cover?

We do. A small place gets exactly the same survey as a big one, with the route planned beforehand.

Is the coastal weather around Keynor Estate hard on roofs?

Often, yes. Keynor Estate is within about 2 miles of the sea, and coastal roofs tend to see faster wear on metal parts and more wind lifting loose pieces.

How many surveys have you done?

We’ve been surveying roofs for over 20 years and have completed over 5,000 surveys across London and South East England.

What happens after the survey?

You receive the written report by email, with photographs and recommendations. It’s yours to share with a seller, insurer, roofer or managing agent, whichever applies.

Will the survey show why my flat roof is leaking?

The survey covers the covering and all the details where leaks usually begin, 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.

Which flat roof coverings do you cover?

Felt, mastic asphalt, EPDM rubber, GRP fibreglass and single-ply membranes are all part of the work. We record what the covering is and how it’s holding up.

Do you need to get into the loft?

Yes, where the survey calls for it and there is safe access. Inside, we look for damp, staining, gaps and sagging, as far as the space allows.

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