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

West Sussex · London and the South East

Flat Roof Survey in Horsham

An experienced roof surveyor for flat roof surveys in Horsham. More than 20 years and over 5,000 surveys.

  • Splits, cracks and crazing
  • Outlets that hold water back
  • Failed upstands where the roof meets a wall

Need a flat roof survey in Horsham?

Why get it checked now?

Flat roofs cannot normally be seen from the street, so they’re often overlooked. Many owners only find out a roof is worn out when water comes through. Regular surveys mean it won’t come as a surprise. Whatever the age of a roof in Horsham, small defects only grow if they’re left. A loose ridge, a cracked flashing or a blocked outlet is a small job today and a bigger one after a wet winter.

Prices start from £150, including VAT, for a Basic Survey. Standard is from £250 and Premium from £400, both including VAT. We confirm the price for the job before booking.

Why book us in Horsham

  • Packages from £150, inc. VAT
  • Visits on any day of the week
  • Drones and thermal imaging where it applies
  • 98% of clients satisfied

Take a look at what a roof survey costs and what we found on two real jobs.

Flat roof surveys for homes and businesses in Horsham

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 call 07833 053749 or email us with the address and an idea of the roof’s size. We’re frequently asked to look into pools of water lying on the roof and gaps at upstands and abutments, on single-ply membranes, upstands and outlets and felt flat roofs.

Blocks of flats in places the size of Horsham typically have a shared flat roof, looked after by a managing agent, a residents’ company or the building owner. A leak in the top-floor flat is often the first sign of a problem with the membrane. The earlier the cause is found, the less damage it does. Let us know who manages the building, as access to a shared roof has to be arranged.

Every survey ends with a written report, with photographs, sent by email. It explains the condition of the flat roof, the defects we found and what we recommend.

Illustration of a flat roof with standing water being looked at through a magnifying glass
Where
Horsham (RH12, RH13, RH20, BN44)
Region
West Sussex
Price
From £150 inc. VAT
Your report
A written report with photos, by email
Survey days
Weekdays and weekends
Insured
PI and public liability insurance
Call
07833 053749
Last updated
27 October 2026

Tips from our surveys

Here are a few things we’d tell any owner, before and after a survey:

  • Ask contractors to protect the roof if they work on it
  • Check the outlets after the leaves fall
  • Ask whoever fits equipment on the roof to make good the covering
  • Note the date and type of any roof work

Questions about the findings are always welcome. Standard Surveys come with a follow-up consultation, and Premium Surveys with an in-person one, so you can talk the findings through.

Have the roof surveyed every few years, and after any work that goes through it. That catches changes early and builds up a record of the roof.

Flat roofs in Horsham

Many older homes in Sussex have handmade clay tiles and tile-hung walls. Some old buildings in Sussex have Horsham stone slab roofs. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. Before planning roof work on an older home, find out whether it’s listed or in a conservation area. Changes that affect a listed building’s special interest need listed building consent, and councils can also use Article 4 directions to control changes in conservation areas.

For landlords with property near Horsham station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. Take an older house close to Hope Chapel: the joins between later flat roofs and the old walls are where problems normally start.

Horsham is about 31 miles south of London, in West Sussex. We carry out flat roof surveys in Horsham for houses, flats, blocks and commercial buildings. Our West Sussex coverage includes Horsham and the places around it. We also survey roofs in Crawley.

All of RH12, RH13, RH20 and BN44 is within our area for flat roof surveys, from the main roads to the quietest streets. Whether your property is on Station Road, London Road and Market Square or anywhere close by, we can survey it. Horsham is on the A24 and A29, so it is easy for us to get to. Neighbouring places we cover for flat roof surveys include Tower Hill (1 mile south-west), Broadbridge Heath (2 miles west), Holbrook (2 miles north), Warnham (2 miles north-west) and Southwater (3 miles south). Within a short drive, we also cover Crawley (7 miles north-east), Haywards Heath (11 miles south-east), Burgess Hill (11 miles south-east), East Grinstead (14 miles east), Broadfield (5 miles east) and Storrington (11 miles south-west). Being one of West Sussex’s larger places, Horsham has every kind of building, from houses and flats to offices.

What’s near Horsham

We work in homes and buildings around Millais School, Warnham Park and Kingslea Primary School, among other places. There is a railway station in Horsham itself: Horsham station. A little further out are Christs Hospital School Museum (2.4 miles south-west) and Horsham Hospital (within half a mile north-west). Not far away are Warnham LNR.

Map of Horsham © OpenStreetMap contributors

Horsham questions

Is Horsham in the area you cover?

Yes, Horsham is one of the places we work. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.

What do I need to do before a survey in Horsham?

The main thing is access, inside and out, plus somewhere to park in Horsham. It also helps to know about any leaks or earlier repairs.

Can you find where water is getting through my flat roof?

Our survey looks across the whole roof, not only above the stain. Splits, open laps, upstands, outlets and rooflights are all checked. Where nothing visible explains the leak, the report says what to try next.

How long is the visit?

It usually takes about one to two hours for a small flat roof at home, and longer for a large commercial one. You will then get the report by email, on the timescale of your package.

How soon will I get the report?

Each package has its own report time. Basic is within 48 hours, Standard is 24–48 hours and Premium is the same day. If you have a deadline, such as an exchange date, let us know when booking.

What insurance do you have?

Professional indemnity and public liability insurance cover our surveys. Ask if you need details for a managing agent or building owner.

How do I arrange a flat roof survey in Horsham?

The quickest way is to ring 07833 053749 or email us. Give us the address and a few details about the roof, and we will take it from there. We survey on weekdays and at weekends.

What we do, step by step

We look at the roof from outside and, where it is relevant and there is safe access, from inside the loft space too. In the loft, the signs we look for are staining, damp, daylight and sagging. The whole visit typically takes between one and two hours on an ordinary house, rising to roughly 3–4 hours on a commercial building. Jobs in Horsham might be a terraced house one day and a block of flats the next. Let us know the type of building and who can let us in, and the visit is planned around that.

  1. We start with the details: the address, the roof’s use and any leaks or stains.
  2. We view the roof from the ground, from windows and from the roof where it is safe to do so.
  3. The covering, falls, upstands, outlets, edge trims and rooflights are checked and photographed.
  4. We check the rooms or spaces under the roof for staining where we can reach them.
  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
  • Find any records of previous roof work
  • Let us know where we can park nearby

How to book

If you have photos of the roof, send them over. Take them safely from ground level or a window. To get started, phone 07833 053749 or drop us an email.

Book your survey

Read more

What we look for on each type of roof

Single-ply membranes

On single-ply roofs, the welds between sheets are the key detail. Seams, corners and the details around outlets and upstands get a careful look.

GRP fibreglass

GRP roofs are laid as a resin and glass-fibre layer over boards. The survey checks for cracking at board joints, at the edge trims and where the roof meets walls.

When you need someone else

In fairness, there are limits to any roof survey:

  • Hidden layers beneath the covering
  • A fixed date for when the roof will need replacing
  • Asbestos testing, which needs a specialist asbestos surveyor

If you are not sure which survey you need, phone 07833 053749 or send us an email and we will give you a straight answer before booking. What our survey covers.

What this survey covers

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

Prices for flat roof surveys in Horsham

To price your survey, we check:

  • The use of thermal imaging or a drone
  • Building height and the viewpoints available
  • Basic, Standard or Premium
  • Extensions, dormers and garages with roofs of their own

Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before booking.

What to tell us when you get in touch

We’ll usually ask about:

  • Access details, like a loft hatch or a shared roof
  • Why you want a survey: buying, a leak, a storm or new work
  • Any marks or damp showing indoors
  • Any photos you have, taken from ground level or a window

If you are buying, it helps to book soon after your offer is accepted, so there’s time to use the report before exchange. Otherwise, simply phone 07833 053749 or use the contact form whenever suits you.

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