Hertfordshire · London and the South East
Heronsgate Flat Roof Survey
We take a careful look at the flat roof at your property in Heronsgate, and put it all in a written report with photographs.
- Edge trims that have lifted or split
- Ponding water that does not drain away
- Water getting in at rooflights
Landlord and commercial surveys in Heronsgate
We survey roofs for landlords and agents as well as householders. The report gives you a dated record of the flat roof, with photographs, which helps you plan work between tenancies.
An agent can book and manage the survey for a landlord. Access is agreed with the tenant ahead of time.
Flat roof survey in Heronsgate: what you get
Our Basic Survey, from £150, gives you a visual inspection with photographs and written recommendations. For moisture detection and a structural check, the Standard Survey starts from £250. Moisture readings are useful on flat roofs, where water can spread under the covering before it shows inside. Larger commercial roofs are quoted for their size. If you’ve noticed damaged trims at the roof edge and failed upstands where the roof meets a wall, we can find out what’s behind it, whatever the roof.
In a village or hamlet like Heronsgate, flat roofs are usually on extensions, garages, outbuildings or barn conversions. They need the same care as any town roof: outlets, upstands, edges and the covering itself. The journey and access are planned beforehand. Garages and outbuildings are easy to forget, so mention any you want included when booking.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Location
- Heronsgate (WD3)
- Wider area
- Hertfordshire
- Cost
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Flat roofs in Heronsgate
The wider area around Heronsgate has a long history of building, with Chenies Manor House about 2.4 miles north. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and a listed home or one in a conservation area may need consent for changes of material. In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile, and flat-roofed additions turn up almost everywhere. Mixed in with those pitched roofs are lots of flat ones, over rear extensions, dormers, garages and shops.
Take a building like Chorleywood Primary School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. For landlords with property near Chorleywood station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Heronsgate is about 1 mile south-west of Chorleywood, in Hertfordshire. Anywhere in Heronsgate, we can come and survey your property, on a weekday, Saturday or Sunday. We cover towns and villages across Hertfordshire, large and small. For surveys nearby, see our London page.
Postcode districts we cover here for flat roof surveys: WD3. That includes homes and businesses on Long Lane, Stag Lane and Halifax Road. We also cover Chorleywood (1 mile north-east), Maple Cross (1 mile south), Horn Hill (1 mile south), Chalfont Common (2 miles south-west) and West Hyde (2 miles south). Within a short drive, we also cover Watford (5 miles east), Hemel Hempstead (8 miles north), St Albans (11 miles north-east), Harpenden (14 miles north-east), Hatfield (15 miles north-east) and Borehamwood (11 miles east).
What’s near Heronsgate
Around Heronsgate, our work takes us to homes and buildings near Rickmansworth Aquadrome, among other places. For rail, the closest station is Chorleywood station, roughly 1 mile north of the centre. Other landmarks nearby include Chiltern Open Air Museum (1 mile west) and Harefield Hospital (2.8 miles south-east). For a walk, there is Chorleywood Common and Tumbling Bay.
How it works
Where it’s relevant and can be reached safely, the loft space is checked as well as the outside. In the loft, the signs we look for are staining, damp, daylight and sagging, as far as the space allows. All in, the survey usually takes roughly 1–2 hours at a typical home, or half a day or so for a commercial building. In a small place like Heronsgate, access is normally the main thing to plan. 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.
- We agree the roof to be surveyed, its use and any leaks you know about.
- The roof is viewed from safe positions, including the roof itself where that’s safe.
- The covering is checked for wear, splits, blisters and standing water.
- We photograph and record the outlets, upstands, trims and rooflights.
- A written report with photos and recommendations is emailed to you.
How to prepare
- If you’re buying, let the agent know when we’re coming
- Clear the way to the loft hatch
- Point out any leaks or damp patches
Getting a price
If you have photos of the roof, send them over. Take them safely from the ground or a window, and please do not climb up for a closer look. To send them or to book, phone 07833 053749 or email us.
Advice
What this survey cannot tell you
Without opening up the roof, some things stay hidden, so a survey has limits:
- A fixed date for when the roof will need replacing
- Areas we cannot see or reach safely, including fragile rooflights and sheeting
- Testing older roof sheets for asbestos
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.
What we look at
- EPDM rubber
- Felt flat roofs
- Single-ply membranes
- GRP fibreglass
- Upstands and outlets
- Mastic asphalt
How the survey changes by roof type
Felt and built-up roofs
The edges and upstands of a felt roof are typically where trouble starts. We check each one and photograph any that have split or pulled away.
EPDM rubber
Lifting at the edges and loose areas of membrane are common EPDM problems. Any we find are noted and photographed.
Tips from our surveys
From years of surveys, a few habits stand out:
- Keep outlets clear of leaves and moss
- Keep people off the roof unless they need to be there
- Note the date and type of any roof work
- Note where water lies after a downpour
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 photograph of each defect, so anyone reading it can see what we saw.
After heavy rain, look at the roof from an upstairs window if you can. If water is still there a day or two later, have it checked.
Common roof problems in Heronsgate
Ponding keeps the covering wet and wears it faster. It normally comes from poor falls, a blocked outlet or a deck that has dipped. Leaves and silt from nearby trees can soon choke an outlet.
Most people get in touch after spotting something like this:
- Upstands pulling away from walls
- Edge trims that have lifted or split
- Blocked or damaged outlets
- Ponding water that does not drain away
If you live in an older home near St John, the flat roofs on later extensions tend to wear out long before the main roof.
Before you book anyone
- Whether the loft space is looked at, where there is one
- Is VAT included in the price?
- Whether you get a written report with photos
- Their track record with similar roofs
Heronsgate questions
Do you carry out roof surveys in Heronsgate?
Yes. We survey roofs across London and the South East, and Heronsgate is part of that. You can call 07833 053749 or drop us an email with the address and some details, and we will talk through which survey suits.
Do you cover smaller places like Heronsgate?
Yes, we do. We cover the whole of London and South East England, from towns to the smallest villages. The journey is planned ahead, so it helps to know about access.
Will this cover the whole house?
No. It’s a survey of the flat roof. It is not a RICS Level 2 or 3 survey of the whole building, and it is not a structural engineer’s report. It often sits alongside a buyer’s building survey.
How do you inspect a flat roof?
Only where it’s safe to do so. If not, we use safe viewpoints and look inside, and the report says if any part couldn’t be seen. Fragile surfaces are never walked on.
Do you survey roofs on blocks of flats?
Yes. Shared roofs just need a little more planning, with whoever owns or manages the building. Mention it when you contact us and we’ll explain what’s needed.
Should I worry about standing water on my flat roof?
Water that lies on a flat roof for days is a sign that something needs attention. It could be the outlets, the falls or a deflecting deck. The survey looks at each and records the likely cause.
What’s the best way to book?
It is easiest to call 07833 053749 or send us an email. Give us the address and some details about the roof. Surveys run seven days a week.