Windsor and Maidenhead · London and the South East
Roof leak investigation in Cold Harbour, Windsor and Maidenhead
Get a clear view of the leaking roof at a property in Cold Harbour from an independent roof surveyor. We visit on weekdays and at weekends.
- Ceiling stains that grow after rain
- Damp walls below an overflowing gutter
- A leak that comes and goes with the weather
About our roof leak investigation in Cold Harbour
Most roof leaks start at a joint rather than the middle of a slope. Common entry points include chimney and wall flashings, valleys, parapet and box gutters, and the upstands and outlets on flat roofs. We check each likely route and follow the evidence. Every chimney, dormer and roof light adds more joints to check. Each one is checked from wherever it’s safe to see it. If you’ve noticed water through the ceiling under a flat roof and stains around a skylight, we can find out what’s behind it, on valleys and parapet gutters, the roof space and flat roof details alike.
Many homes in small places like Cold Harbour face open ground, so storms hit ridges, verges and chimneys hard. Damp in old stone, brick or timber walls is slow to dry out, so it pays to find the cause quickly. A record with photographs is useful if you need to show the damage to anyone else.
Report times depend on the survey you book: the Basic Survey within 48 hours, the Standard Survey in 24 to 48 hours and the Premium Survey on the same day.
- Location
- Cold Harbour (SL6)
- Region
- Windsor and Maidenhead
- Price
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
Common questions in Cold Harbour
Does a conservation area affect roof work in Cold Harbour?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you are planning to re-roof in a different material.
Is Cold Harbour in the area you cover?
Yes, Cold Harbour is within the area we cover. We work right across London and the South East. Just phone 07833 053749 or send us an email and tell us about the property.
Can you trace a leak in dry weather?
In most cases, yes. Damp materials can be found without rain. For leaks that only happen in certain storms, we report the most likely routes.
How much does a roof leak investigation cost in Cold Harbour?
Roof leak investigation starts from £150, including VAT. What you pay for your roof depends on its size, height, access and the package.
Are you structural engineers?
No. We note visible signs like sagging or deflection, but we are not structural engineers and don’t carry out calculations. If we think you need an engineer, the report says so.
How long have you been surveying roofs?
We have been surveying roofs for over 20 years and have carried out more than 5,000 surveys across London and South East England.
What does the report include?
A written report with photos, explaining the condition of the leaking roof, any defects and our recommendations, with the most urgent first where relevant. Standard adds moisture detection and a structural check; Premium adds thermal imaging, drone inspection where applicable and structural analysis.
Checking the roof from ground level
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.
A DIY look is useful, but it isn’t a survey. You will not see flashings, valleys or the backs of chimneys properly from the ground.
When to book a survey in Cold Harbour
When a slate slips or a tile cracks, the underlay takes the water. Ageing felt underlay eventually tears and lets water through, while some very old roofs have nothing under the coverings. On slate roofs, slipping is often caused by corroded nails.
We’re frequently asked to look at:
- Water through the ceiling under a flat roof
- A leak that comes and goes with the weather
- Damp walls below an overflowing gutter
- Damp on a chimney breast
If you let a flat or house near Wargrave station, finding the cause of a leak fast keeps a tenant’s home dry and the work focused.
Before you book any roof surveyor
- Whether the inside of the roof is included
- Is VAT included in the price?
- Whether they hold professional indemnity and public liability insurance
- What the survey won’t cover
Why get it checked now?
Lingering damp encourages mould on ceilings and walls. It’s unpleasant, and it is harder to deal with once established. Stopping the water is the first step. In a small place like Cold Harbour, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
We offer three survey packages: Basic from £150, Standard from £250 and Premium from £400, all with VAT included. What your roof costs depends on its size, access and what you want to find out.
Why book us in Cold Harbour
- Over 20 years’ experience
- Plain-English reports with photos
- Visits on any day of the week
- Customer satisfaction of 98%
Read how roof surveys are priced and our case studies.
What happens on the day
Safety comes first on every visit. We inspect whatever is safely visible, and if part of the roof can’t be seen, the report says so. Most visits take an hour or two, more where the leak is intermittent or the roof is large. Cottages and farmhouses around Cold Harbour frequently have roofs at several levels, with lean-tos and outbuildings attached. We work round each section in turn, from the safest viewpoints, and anything we can’t see is noted.
- We start with what you’ve seen: where the stain is and when it gets worse.
- We check the stain, the ceiling and the loft above it.
- Likely entry points outside are checked, from flashings and valleys to gutters and outlets.
- Moisture readings and thermal imaging are used where they help.
- We email a report with photos, the likely entry point and recommendations.
Before we arrive
- Move anything stored under the loft hatch
- If the roof is shared, arrange access with whoever manages the building
- Let us know about parking before the day
Arrange a survey
Buyers should book once an offer has been accepted, so there is time to use the report before exchange. For any other survey, just call 07833 053749 or drop us an email when you’re ready.
Related advice
Different roofs, different checks
Valleys
Valleys collect water from two roof slopes. Worn or split linings and slipped valley tiles let it under the coverings.
Flat roof upstands and outlets
Upstands seal the edge of a flat roof where it meets a wall. A low or cracked upstand is a common way in.
Surveys for landlords and agents in Cold Harbour
Shared roofs need a little more planning: we need access agreed with whoever owns or manages the building. Mention it when you contact us and we’ll plan the survey around it.
We also survey roofs for businesses and commercial landlords, including offices, shops and units. Bigger roofs take more time, so they’re priced to suit.
Cold Harbour roofs and the weather
The wider area around Cold Harbour has a long history of building, with Harleyford Manor about 3.3 miles north. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead. 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. Each of these roof types has its own typical places for water to get in.
For an older house near a landmark like Saint Peter, lead flashings, valleys and old chimneys are typical places for water to get in. If you look after a building like Knowl Hill Church of England Primary Academy, a leak through a large roof is frequently found some distance from where the water shows inside.
Cold Harbour is about 3 miles west of Maidenhead, in Windsor and Maidenhead. We carry out roof leak investigations for homeowners, landlords and businesses in Cold Harbour and nearby. We cover towns and villages across Windsor and Maidenhead, from the larger towns to small villages. Our Reading page covers surveys nearby.
Roof leak investigations in SL6 work the same way as everywhere else we cover. We also cover Knowl Hill (1 mile north-west), Warren Row (1 mile north-west), Bowsey Hill (2 miles west), Cockpole Green (3 miles north-west) and Wargrave (3 miles west). We also work in nearby towns such as Maidenhead (3 miles east), Windsor (8 miles east), Boyn Hill (3 miles east), North Ascot (8 miles south-east), Cookham (5 miles north-east) and Furze Platt (3 miles north-east).
What’s near Cold Harbour
Around Cold Harbour, our work takes us to homes and buildings near Cox Green School and The Royal Oak pub and the streets around them. Cold Harbour’s nearest station is Wargrave station, about 3.3 miles west of the centre. Other landmarks nearby include St Mark's Hospital (2.8 miles north-east). Green spaces nearby include Hurley Chalk Pit and Taplow Lake.