Hertfordshire · London and the South East
Harmer Green Roof Survey
A roof condition survey for homes and buildings for Harmer Green and the rest of Hertfordshire. We survey on any day of the week.
- Condensation or damp timbers in the loft
- Valley linings that have cracked or split
- Crumbling chimney pointing or cracked flaunching
Useful tips for Harmer Green property owners
These tips come from what we see on roofs every week, before and after a survey:
- Check the roof from the ground after storms
- Photograph stains when they appear
- Clear the loft hatch area before we arrive
- Hold on to the report for future surveys
File the report with your other home documents. It is a useful baseline for future surveys, and it can help when you sell.
Plan a roof survey every few years, or sooner after severe weather. Routine surveys pick up wear before it leaks. Compare each report with the last.
Roof surveys for homes and businesses in Harmer Green
Everything we check, we check safely: from ground level, from windows, from the loft space and from the roof where conditions allow. The Premium Survey adds thermal imaging and, where applicable, a drone, for roofs that are hard to see well. You don’t need to do anything except give us access. Everything we see is photographed for the report. We survey natural slate, clay and concrete tiles and ridges, hips and valleys, and people most often book us about gaps in the roof where coverings have gone and lifted, split or missing lead flashings.
In a village or hamlet like Harmer Green, older cottages and farmhouses often sit alongside barns, outbuildings and a few newer houses. Roofs there can be clay tile, slate, stone or thatch, and chimney stacks are often old. Each needs checking in its own way, and thatch is a specialist material we report on as far as it can be seen. Chimneys and lead flashings on old roofs often need the most attention.
How fast the report arrives depends on the package: Basic within 48 hours, Standard in 24–48 hours and Premium the same day.
- Location
- Harmer Green (AL6)
- Wider area
- Hertfordshire
- Cost
- From £150 inc. VAT
- Report
- A written report with photos, by email
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Common roof problems in Harmer Green
Weather is the main thing that wears a roof down. Strong gusts work at anything that is not firmly fixed, while rain gets into every gap. Small faults that start this way grow over time.
A survey makes sense if you’ve noticed:
- Ridge tiles that have lifted or moved
- Leaning or weathered chimney stacks
- Valley linings that have cracked or split
- Blocked, sagging or leaking gutters
Trees in and around Danesbury Park shed leaves that can end up in nearby gutters, and an overflowing gutter soon means a wet wall.
Questions to ask before you book
- Their drone registration, if they fly one
- Whether the loft space is looked at, where there is one
- Their report turnaround times
- What’s outside the scope of the survey
Different roofs, different checks
Chimney stacks
Our chimney check is a visual inspection of the stack, and it isn’t a flue or gas safety check. We will tell you if the flue needs a specialist.
Clay plain and peg tiles
Tile-hanging on walls and dormer cheeks is checked as part of the roof where it’s relevant. Loose or missing tiles there let rain into the wall.
Roof surveys around Harmer Green
If your survey includes the drone, the flight is checked against the Drone Safety Map first. The wider area around Harmer Green has a long history of building, with Digswell House about 1.5 miles south-west. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material.
Take an older house close to Digswell Village Church: corroded nails, tired lead and weathered chimney pointing are the things to watch on older roofs. Landlords with a home close to Welwyn North station may find that a roof report helps you deal with small faults before they turn into a call from a tenant.
Harmer Green is about 2 miles north of Welwyn Garden City, in Hertfordshire. We survey roofs in Harmer Green and the rest of Hertfordshire, as part of our work across London and South East England. Harmer Green is one of the places in Hertfordshire where we work for roof surveys. You can also see our page for London.
We survey roofs across the AL6 postcode area for roof surveys and the streets around it. Other places close to Harmer Green include Burnham Green (1 mile east), Tewin Wood (1 mile east), Oaklands (1 mile north-west), Bull's Green (1 mile north-east) and Digswell (1 mile south-west). Larger places within reach include Watford (15 miles south-west), Hemel Hempstead (13 miles south-west), Stevenage (5 miles north), St Albans (8 miles south-west), Bishop's Stortford (15 miles east) and Harpenden (7 miles west).
Around Harmer Green
Around Harmer Green, our work takes us to homes and buildings near Danesbury Park, Monk's Walk School and The White Horse Public House and the streets around them. Harmer Green’s nearest station is Welwyn North station, roughly 0.8 miles south-west of the centre. Nearby you’ll also find Hertford Castle (4.9 miles south-east) and Queen Elizabeth II Hospital (3.4 miles south). Open spaces near Harmer Green include Tewin Orchard and Hopkyns Wood.
What happens on the day
A survey visit follows a simple order: we listen to what’s been worrying you, inspect the roof from every safe vantage point, photograph what we find and record our findings for the written report. It usually takes about 1–2 hours for a house, rising to roughly 3–4 hours on a commercial building. Somewhere like Harmer Green needs a little journey planning: let us know about lanes, gates and parking. On the day, we inspect everything that’s safely in view, inside and out.
- You let us know the address, the type of roof and what’s worrying you.
- A visit is booked for a weekday, Saturday or Sunday.
- Outside, we inspect from ground level, windows and other safe vantage points, and from the roof where safe.
- We then look in the loft for damp, staining and the condition of the underlay.
- We email a report with photographs and recommendations.
Getting ready for the survey
- Buyers: confirm access with the estate agent or seller
- Jot down any questions you want answered
- Leave a clear route to the loft
Book a survey
Unsure which package suits your roof? It is easiest to phone 07833 053749 or send us an email and describe the roof and what’s worrying you. We will explain the options and the price.
Read more
Should I look at the roof myself first?
During heavy rain, look at the gutters from ground level or a window. Overflowing water can be a sign of a blockage or a gutter that has dropped.
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry.
Why it’s worth a survey now in Harmer Green
If you are planning to sell, a roof survey can help you prepare. You will know what a buyer’s survey might pick up, or at least know what to expect. Older cottages and farmhouses around Harmer Green can have roof timbers that have been there a very long time, and water through a failed covering can rot timber if it is left.
Every price we give includes VAT, and the written report is part of the package. 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 Harmer Green
- Thermal imaging and drones used where they help
- 98% of customers satisfied
- Weekday and weekend surveys
- 5,000+ surveys completed
Nearby places to Harmer Green
Other services in Harmer Green
FAQs for Harmer Green
How do I find out if my home in Harmer Green is listed?
Your council is the best source, with Historic England’s list for listed buildings. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
Will you come out to Harmer Green?
Yes, we do. Our area covers London and South East England, and smaller places are part of that. Longer journeys are simply planned beforehand.
Which days do you carry out surveys?
Visits run seven days a week in the daytime, which suits people who work during the week. Just say which days work for you.
What does a roof survey include?
All the main parts of the roof: the slates or tiles, ridges, valleys, flashings, chimneys, gutters and roof space. Standard adds moisture detection and a structural check, and Premium adds thermal imaging and a drone where applicable.
Is it the same as a RICS Level 2 or Level 3 survey?
No. It’s a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof, so it sits alongside a building survey rather than replacing it.
What insurance do you have?
Every survey is covered by professional indemnity and public liability insurance, and we can provide details if a managing agent needs them.
Do I need to be at home?
Not necessarily. If we only need the outside, we can agree that beforehand, but anything inside needs someone there to give access.