Hertfordshire · London and the South East
Marshalswick Roof Leak Investigation
Know where you stand with the leaking roof before you spend money on it. We carry out roof leak investigations in Marshalswick, with photos and a clear written report.
- Damp patches next to the stack
- Damp walls below an overflowing gutter
- Water marks that spread in wet weather
For landlords and managing agents
A roof problem in a let property affects your tenants as well as the building. A survey helps you spot issues early and plan the work.
Freeholders and residents’ companies use a roof report to plan and budget, with the most urgent items set out first.
Roof leak investigations for homes and businesses in Marshalswick
Some ‘leaks’ are not leaks at all. Condensation in a cold, poorly ventilated loft can drip from nails and timbers, and the stains look much like a leak. Knowing which it is means the right fix can be done, since the cure for one will not solve the other. The pattern of the damp, the ventilation and the timing all help us decide. Common reasons to book are damp on a chimney breast and ceiling stains that grow after rain, across slate and tile slopes, rooflights and dormers and lead flashings.
In older homes around places like Marshalswick, the underlay may be old bitumen felt, or there may be none at all. Once the slates or tiles let water past, there is little to stop it reaching the ceiling. Finding where it gets in, and whether it is old wear or new damage, decides what comes next. In the loft, damp battens or wet insulation are often the first clues.
After the visit, you get a photo-illustrated written report, sent by email. It explains the condition of the leaking roof, the defects we found and what we recommend.
- Place
- Marshalswick (AL4, AL1, AL3)
- Region
- Hertfordshire
- Cost
- From £150 inc. VAT
- Reports
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
Honest limits
In fairness, a roof survey has limits:
- Putting the leak right
- Water from pipes, tanks or heating systems
- Faults hidden behind ceilings or boarding
If you’re not sure which survey you need, ring 07833 053749 or drop us an email and we’ll give you a straight answer. The full list of what we check.
What this survey covers
- Valleys and parapet gutters
- Flat roof details
- Lead flashings
- Rooflights and dormers
- Chimney stacks
- Slate and tile slopes
- The roof space
The survey, step by step
We don’t take risks to get a closer look. Everything that can safely be seen is inspected, and if part of the roof cannot be seen, the report says so. Most visits take an hour or two for most homes, though a hard-to-trace leak can take longer. Some parts of a survey depend on the weather, so a visit to Marshalswick is booked with the forecast in mind: the parts that need calm, dry weather are planned around it.
- You let us know where the water appears, when, and what the weather was doing.
- We examine the damp area and the rooms near it.
- From the roof space, we trace the water’s route where there’s safe access.
- Outside, we check flashings, valleys, chimneys, gutters and flat roof details from every safe vantage point.
- We email a written report showing where the water most likely gets in.
Preparing for the visit
- If the roof is shared, arrange access with whoever manages the building
- Jot down any questions you want answered
- Make sure pets are kept safely away
Book a survey
If you have photos of the roof, send them over. Pictures from the ground or a window are fine, and please don’t climb up for a closer look. To get started, call 07833 053749 or send us an email.
Advice
What you can safely check yourself
Watch the gutters in a downpour, from a window or the ground. Overflowing water can point to a blockage or a sagging run.
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it, as it helps a surveyor trace the cause.
Nearby places to Marshalswick
Also in Marshalswick
Leave it or get it looked at?
A leak that returns after a repair normally means the real source wasn’t found. We look past the obvious spot and check each likely route. It gives the next repair a far better chance. Around Marshalswick, a leak in an older house can soak into timbers and plaster, and that is a much bigger job than the original defect.
Simple, low roofs take less time to survey than tall or complicated ones, and the package matters as well. The price is always agreed first.
Why us?
- An independent look at the roof
- Packages from £150, including VAT
- Two decades and more of roof surveys
- Weekday and weekend surveys
Read what a roof survey costs or our case studies.
Roof by roof
Slate and tile slopes
Slipped, cracked or missing slates and tiles let rain onto the underlay. Ageing felt eventually lets water through.
Parapet and box gutters
A butterfly roof drains to a central valley gutter. If that gutter or its outlet fails, water can come through the top-floor ceiling.
Your questions about roof leak investigations in Marshalswick
Is Marshalswick in the area you cover?
We do. Every survey there gets the same written report with photographs.
How do I find out if my home in Marshalswick is listed?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Do you climb onto every roof?
Only when it’s safe. Safe viewpoints, the roof space and a drone where it applies cover most of what’s needed.
Will you definitely find the leak?
We cannot promise it. Some leaks hide well, especially those that need wind-driven rain. Where the source is not certain, we list the likely routes in order.
Can you trace a leak in dry weather?
In many cases, yes. Leaks leave clues, such as staining, damp timber and moisture in materials. Some leaks only show in particular weather, so photos and notes from when it leaks help a lot.
Can you tell me if my roof has asbestos?
No. We don’t carry out asbestos surveys or testing. If we see materials that could contain asbestos, such as cement roof sheets or soffits on buildings from before 2000, we flag them and suggest a specialist asbestos surveyor checks them before any work.
What happens after the survey?
The report arrives by email, with photographs and clear recommendations. The Standard Survey includes a follow-up consultation, and the Premium Survey an in-person consultation, so you can talk the findings through.
What a roof leak investigation looks like in Marshalswick
Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles, with flat-roofed extensions, dormers and garages common everywhere. Knowing the roof type helps narrow down where water may be getting in. About 2 miles west lies Batchwood Hall, a reminder of how long the area around Marshalswick has been built on. If your house is among the older ones, expect a mix of original materials and later repairs on the roof.
Shop and office owners around The Maltings may find that a quick answer on where water is coming in keeps a business running. Landlords with a home close to St Albans station may find that a tenant living with a leak needs the cause found, not just the stain painted over. Living close to Clarence Park is pleasant, but mature trees mean leaves in gutters and valleys each autumn, and blocked gutters overflow and soak walls.
Marshalswick is about 1 mile north-east of St Albans, in Hertfordshire. Anywhere in Marshalswick, we can carry out roof leak investigations at your property. Our area takes in places right across Hertfordshire. You can also see our page for London.
We cover every part of AL4, AL1 and AL3 for roof leak investigations. We cover properties on Milvus Road, Jersey Lane and Sandpit Lane and the roads around them. If you’re just outside Marshalswick, we cover Sandridge (1 mile north), Bernards Heath (1 mile west), St Albans (1 mile south-west), Childwick Green (2 miles north-west) and Sopwell (2 miles south-west). Larger places within reach include Watford (8 miles south-west), Hemel Hempstead (7 miles west), Stevenage (11 miles north-east), Welwyn Garden City (5 miles north-east), Harpenden (4 miles north-west) and Hitchin (13 miles north).
Local landmarks in Marshalswick
We work in homes and buildings around The Baton pub, Sandringham School and Clarence Park. For rail, the closest station is St Albans station, roughly 1.3 miles south-west of the centre. Other landmarks nearby include St Albans Musical Museum (0.8 miles south-west) and The Maltings (1.6 miles south-west). Open spaces near Marshalswick include The Wick Local Nature Reserve and Verulamium Lake.