Hertfordshire · London and the South East
Welham Green Flat Roof Survey
Surveys of flat roofs on homes, extensions and commercial buildings for Welham Green, from an experienced roof surveyor. You get a clear written report with photographs.
- Cracked or split membrane
- Water getting in at rooflights
- Edge trims that have lifted or split
Checking the roof from the ground
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, checking for stains, damp wood or chinks of daylight.
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it, which helps when we look at the roof.
Flat roof survey in Welham Green
A flat roof survey looks at the covering, the edges, the outlets and the details where the roof meets walls and rooflights. Felt, asphalt, EPDM, GRP and single-ply PVC or TPO roofs are all part of the work. It suits a small roof over an extension or garage as well as a large one over flats, offices or units. The findings go into a written report with photos, setting out the defects and what we’d recommend. If you’ve noticed failed upstands where the roof meets a wall and blistering in felt or asphalt, we can find out what’s behind it.
Flat roofs in smaller places like Welham Green can be more exposed, especially where nothing shelters them, so wind catches loose edges and trims. Sun on a flat roof also ages felt and bitumen. The signs are splits, blisters and edges coming away, along with water that sits after rain. A flat roof that still holds water days after rain is also worth a closer look.
We write the report in plain English, so you don’t need to be a roofer to follow it. Each point is backed by a photo where possible, and recommendations are put with the most urgent first where relevant.
- Where
- Welham Green (AL9, AL10)
- Region
- Hertfordshire
- Price
- From £150 inc. VAT
- Reports
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
Honest limits
This isn’t a RICS building survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- Areas we cannot see or reach safely, including fragile rooflights and sheeting
- Asbestos testing, which needs a specialist asbestos surveyor
- What’s under the membrane without opening it up
If in doubt, phone 07833 053749 or drop us an email and we’ll suggest the right survey. What our survey covers.
What we check
- Single-ply membranes
- Mastic asphalt
- Upstands and outlets
- Felt flat roofs
- GRP fibreglass
- EPDM rubber
Places near Welham Green
Other services in Welham Green
Why act early in Welham Green
By the time a flat roof leak shows indoors, water has already passed through the roof build-up. We can pick up worn covering and failing details sooner, while there is still time to plan the work. In an older home around Welham Green, water from a roof defect can get into timber and plaster, which is far harder to put right than the roof fault itself.
Prices quoted always include VAT, and the written report is part of the package. Flat roof survey starts from £150, including VAT. Where your roof sits in the range depends on its size, height and access.
Why choose Independent Roof Survey in Welham Green
- 5,000+ roofs surveyed
- PI and public liability insurance
- Thermal imaging and drone inspection where they help
- An independent view of the roof
Take a look at our cost guide and two real surveys.
What a flat roof survey looks like in Welham Green
Hatfield, which Welham Green is part of, is one of England’s post-war new towns. Many homes in the new towns date from the post-war decades, with concrete interlocking tiles, low-pitched roofs and flat-roofed garages and porches. Many of those flat roofs have been re-covered over the years, and some may still have older felt. Cement sheet roofs on buildings from before 2000 may contain asbestos, so a specialist asbestos surveyor should check them before they’re disturbed. Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles, with flat-roofed extensions, dormers and garages common everywhere. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
Take an older house close to Church of St Mary the Virgin: later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear. For site and facilities teams at buildings such as St Mary's Church of England Primary School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you let a flat or house near Welham Green station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Welham Green is about 2 miles south of Hatfield, in Hertfordshire. If you’re in Welham Green, booking works exactly as it does anywhere else: get in touch, agree the price and pick a day. Welham Green is one of the places in Hertfordshire we cover for flat roof surveys. We also survey roofs in London.
Postcode districts we cover here for flat roof surveys: AL9 and AL10. Whether your property is on Station Road, Old Farmhouse Mews and Vincenzo Close or anywhere close by, we can survey it. If you are just outside Welham Green, we cover North Mymms (1 mile south), Colney Heath (1 mile west), Hatfield (2 miles north), Sleapshyde (2 miles west) and Smallford (3 miles north-west). Further out, we also cover Watford (9 miles south-west), Hemel Hempstead (10 miles west), Stevenage (12 miles north), St Albans (5 miles west), Welwyn Garden City (4 miles north) and Harpenden (8 miles north-west).
Landmarks near Welham Green
Typical jobs here are in homes near Brookmans Park, The Hope and Anchor Public House and Chancellor's School, among other places. Welham Green has its own railway station: Welham Green station. Other landmarks nearby include Queen Elizabeth II Hospital (3.5 miles north) and The Bunker at Hatfield Police Station (2.3 miles north). Not far away are Gobions Wood.
What a survey costs
Every roof is different, so prices are confirmed before you book. This is what makes a difference:
- Features like valleys, chimneys, dormers and parapets
- Building height and the viewpoints available
- Whether thermal imaging or a drone is needed
- Basic, Standard or Premium
Our price is from £150, including VAT. What you pay depends on how big and how high the roof is, how it can safely be seen and which survey you book.
Helping us price your survey
What helps most when you contact us:
- The address and postcode of the property
- The reason for the survey, such as buying, a leak or storm damage
- Any marks or damp showing indoors
- How the loft is reached, if there is one
We survey roofs on weekdays, Saturdays and Sundays. To arrange a day that suits you, call 07833 053749 or use the contact form.
Tips that help
These tips come from what we see on roofs every week:
- Check ceilings under the roof for damp patches
- Keep records of when the roof was laid and what work has been done
- Treat rooflights and old sheeting as fragile
- Ask contractors to protect the roof if they work on it
Landlords, owners and managing agents can keep the report as a dated record of the roof. It is useful when planning upkeep and setting budgets, and it makes changes easy to spot at the next survey.
Check the roof from a window after a downpour. Water still lying a day or two later is worth getting looked at.
How the survey works
We’ll ask a few questions first, about the roof’s history, any leaks and past repairs. The inspection then takes roughly 1–2 hours on an ordinary house, though large, tall or awkward roofs take more time. Parking around Welham Green is normally easier than in a town centre, but mention lanes, gates or long drives. On bungalows and lower roofs, much can be seen from ground level, with the loft showing the underside, while taller roofs may need other vantage points or the drone where it applies.
- 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.
- Each defect is photographed and its likely cause noted.
- The report explains the condition and recommends what to do first.
How to prepare
- Mention any parking restrictions on your street
- Point out any leaks or damp patches
- Check the loft hatch can be reached
Book a survey
You can call us seven days a week, including Saturdays and Sundays. For a price or to book, ring 07833 053749 or send us an email.
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FAQs for Welham Green
Is Welham Green within the area you cover?
We do. Villages and rural addresses get the same survey as a town house, with the route planned beforehand.
Does a conservation area affect roof work in Welham Green?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
What insurance do you have?
We hold professional indemnity and public liability insurance, for every survey we carry out.
Do you survey roofs on blocks of flats?
Yes, once whoever controls the roof agrees access. On a shared roof we can only inspect the parts we’re allowed to reach, and the report makes that clear.
Can you survey a flat roof on an office or unit?
Yes. We survey flat roofs on offices, shops, industrial units and blocks of flats. We quote bigger roofs on their size and how they’re reached, so phone 07833 053749 or use the contact form with the address.
Should I worry about standing water on my flat roof?
Standing water a day or two after rain normally needs attention. It could be the outlets, the falls or a deflecting deck. We check each of these and record what we find.
Is a flat roof survey the same as a building survey?
No. It’s a survey of the flat roof. It is not a RICS Level 2 or 3 home survey or a structural engineer’s report. It often sits alongside a buyer’s building survey.