Hertfordshire · London and the South East
Flat roof survey in Colney Heath, Hertfordshire
Wondering about the flat roof at a property in Colney Heath? We carry out flat roof surveys in Colney Heath and across Hertfordshire, with plain-English findings.
- Cracked or split membrane
- Upstands pulling away from walls
- Raised blisters across the surface
Flat roof survey in Colney Heath
Ponding is frequently the first sign that something on a flat roof isn’t right. It can point to poor falls, a blocked outlet or a deck that is deflecting. We record where water sits, check the outlets and look for dips that suggest deflection. If the deck itself looks like a structural concern, we’ll recommend a structural engineer. We survey upstands and outlets, single-ply membranes and GRP fibreglass, and people most frequently book us about signs of deflection in the roof deck and edge trims that have lifted or split.
Some older homes in villages like Colney Heath 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.
After the visit, you get a photo-illustrated written report, emailed to you. It explains the condition of the flat roof, the defects we found and what we recommend.
- Place
- Colney Heath (AL4)
- Wider area
- Hertfordshire
- Prices
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- Survey days
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Different roofs, different checks
Felt and built-up roofs
A felt roof often lasts around 15 to 20 years, though quality and upkeep make a big difference. We record how yours is doing and where it’s weakest.
Mastic asphalt
Mastic asphalt is a heavy, seamless covering often found on older blocks, balconies and commercial roofs. We look for crazing, cracks, blisters and splits at the skirtings.
Places near Colney Heath
What else we do in Colney Heath
Tips that help
A little preparation and a few simple habits help. Some pointers:
- Check the outlets after the leaves fall
- File the paperwork for the roof and any repairs
- Watch the ceilings below the flat roof for stains
- Ask contractors to protect the roof if they work on it
Questions about the findings are always welcome. Standard Surveys come with a follow-up consultation, and Premium Surveys with an in-person one, giving you a chance to go through what we found.
Get splits, lifted seams and loose trims seen to while they’re small. A flat roof that is looked after between surveys normally lasts longer.
Flat roof surveys around Colney Heath
Hatfield, which Colney Heath is part of, is one of England’s post-war new towns. Homes from the post-war decades are common in the new towns, many with low-pitched roofs in concrete tiles and flat-roofed garages or 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. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates, and flat-roofed additions turn up almost everywhere. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
For landlords with property near Welham Green station, the flat roof over a let home is worth a look before it becomes a tenant complaint. Take a building like Colney Heath Junior Mixed Infant and Nursery School: a large flat roof with lots of outlets and rooflights has many places where a membrane can fail.
Colney Heath is about 2 miles south-west of Hatfield, in Hertfordshire. Surveys in Colney Heath work the same way as everywhere we cover: a careful look at everything that’s safely in view, photographs and a clear written report. Our Hertfordshire coverage includes Colney Heath and the places around it. For surveys nearby, see our London page.
We survey roofs across AL4 for flat roof surveys and the streets around it. Local streets include High Street, Fair View and Roestock Lane, all of which we cover. Neighbouring places we cover for flat roof surveys include Sleapshyde (1 mile north-west), Welham Green (1 mile east), Smallford (1 mile north-west), Hatfield (2 miles north-east) and Tyttenhanger (2 miles west). Larger places within reach include Watford (8 miles south-west), Hemel Hempstead (9 miles west), Stevenage (12 miles north), St Albans (3 miles west), Welwyn Garden City (5 miles north-east) and Harpenden (7 miles north-west).
Local landmarks in Colney Heath
We work in homes and buildings around Chalkdrawers Arms, Bishop's Hatfield Girls' School and North Mimms Park. For rail, the closest station is Welham Green station, roughly 1.7 miles east of the centre. Other landmarks nearby include Hill End Hospital (2.3 miles west) and The Bunker at Hatfield Police Station (1.9 miles north). The countryside around Colney Heath includes Verulamium Lake and Colney Heath Local Nature Reserve.
What happens on the day
After the inspection, everything we found is written up as a written report with photographs, sent to you by email. As for time on site, most surveys take roughly 1–2 hours for a small flat roof at home, and longer for a large commercial one. In a small place like Colney Heath, access is usually 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.
- First we go through the roof, what’s beneath it and any problems so far.
- 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.
- Upstands, outlets, edge trims and rooflights are checked and photographed.
- A written report with photos and recommendations is emailed to you.
Getting ready for the survey
- Have any questions written down, so nothing gets missed
- Agree roof access with the managing agent if it’s shared
- Clear the way to the loft hatch
Arrange a survey
If you have photos of the roof, send them over. Take them safely from ground level or a window. To send them or to book, call 07833 053749 or email us.
Related advice
What affects the cost of flat roof surveys
To price your survey, we check:
- Roof area
- Chimneys, valleys, parapets and other details
- Which survey package you book
- Any need for thermal images or a drone flight
To find out what your survey will cost, ring 07833 053749 or send us an email and let us know about the roof. The price is agreed before a date is set.
What to let us know when you get in touch
Getting the details right at the start saves time. It helps to include:
- Pictures of the roof from a safe spot, if you have them
- Any stains, drips or damp patches you’ve seen indoors
- What made you get in touch
- When you need the report by
Our phone lines are open seven days a week, including Saturdays and Sundays. For a price or to book, call 07833 053749 or send us an email.
Signs you need a flat roof survey in Colney Heath
Flat roofs take the full force of the weather on a surface that drains slowly. Over the years, coverings harden, crack and start to come away at the edges. Most people book a survey after a leak, before buying, or when they think the roof is getting old.
A survey can pick up problems such as:
- Blistering in felt or asphalt
- Failed upstands where the roof meets a wall
- Leaks around rooflights
- Dips that suggest the deck is deflecting
If you look after a shop, office or commercial unit, for example near The Maltings, outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Questions to ask before you book
- Is VAT included in the price?
- Which parts of the roof they’ll actually see
- Whether you can ask questions once you have the report
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
Surveys for landlords and agents in Colney Heath
We survey roofs for landlords and agents as well as householders. The report gives you a dated record of the flat roof, with photos, useful for planning maintenance.
For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. Recommendations are set out with the most urgent first where relevant, which helps when budgeting.
FAQs for Colney Heath
Is my home in Colney Heath listed or in a conservation area?
We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Do you cover smaller places like Colney Heath?
Yes, Colney Heath is on our map. Villages and rural addresses get the same survey as a town house, with the route planned beforehand.
Will you check the loft?
Normally, if there is one and it can be reached safely. From inside, the underside of the roof often shows damp, staining or daylight that can’t be seen from outside.
How experienced are you?
Over 20 years and more than 5,000 surveys.
What does the report include?
It works through the roof part by part, in writing and with photos, and ends with what we recommend. The most urgent items are made clear.
Will I get photos?
Yes. The report includes photos of what we found, so you can see exactly what each finding refers to.
Does someone need to be in?
If the survey includes the loft or the inside of the building, someone needs to let us in. Access is agreed with you when booking.