Wokingham · London and the South East
Knowl Hill Roof Leak Investigation
Roof leak investigations in Knowl Hill from an independent, experienced roof surveyor. Over 5,000 surveys and 20+ years behind us.
- Damp patches next to the stack
- Damp walls below an overflowing gutter
- Damp ceilings under a flat roof
Honest limits
Without opening up the roof, some things stay hidden, and that sets some limits:
- Faults hidden behind ceilings or boarding
- Structural calculations (that’s a structural engineer’s job)
- Leaks from plumbing, tanks or pipework rather than the roof
If you are not sure which survey you need, call 07833 053749 or drop us an email and we’ll give you a straight answer before you book. The full list of what we check.
Roofs we survey in Knowl Hill
- The roof space
- Flat roof details
- Slate and tile slopes
- Valleys and parapet gutters
- Chimney stacks
- Lead flashings
- Rooflights and dormers
Roof leak investigations for homes and businesses in Knowl Hill
On older houses, leaks frequently start at lead work and hidden gutters. Worn lead, tired valley linings and blocked parapet outlets are frequent causes. A central valley gutter on a butterfly roof often turns out to be the source in heavy rain. We check parapets, valleys and flashings from every safe vantage point. The findings are recorded with photos. We survey rooflights and dormers, valleys and parapet gutters and slate and tile slopes, and common reasons people get in touch are water coming in around a roof light or dormer and a leak that comes and goes with the weather.
Being in a small place like Knowl Hill makes no difference to how a leak or storm damage is looked at: the journey and access are just planned beforehand. It is useful to know where the water appears, in what weather, and what you’ve seen outside, along with any repairs done before. Photos of the stain and of the roof from outside are helpful too.
The report records the leaking roof as we found it on the day. That makes it useful now and a handy reference later.
- Where
- Knowl Hill (RG10)
- Wider area
- Wokingham
- Cost
- From £150 inc. VAT
- Reports
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
Nearby places to Knowl Hill
What else we do in Knowl Hill
Landlord and commercial surveys in Knowl Hill
Roof problems in a rented home affect tenants as well as the building. A survey helps you spot issues early and plan the work with less disruption.
Where a roof is shared: we need access agreed with the building owner or managing agent. Tell us about it when you book and we will plan the survey around it.
Wind, rain and roofs in Knowl Hill
About 3 miles north lies Harleyford Manor, a reminder of how long the area around Knowl Hill has been built on. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead. Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles. The covering and its details give the first clues when tracing where water is coming from.
Landlords with a home close to Wargrave station may find that tracing a leak quickly matters when a tenant is living with it. Take a building like Knowl Hill Church of England Primary Academy: water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot. For an older house near a landmark such as Saint Peter, lead flashings, valleys and old chimneys are typical places for water to get in.
Knowl Hill is about 4 miles west of Maidenhead, in Wokingham. We carry out roof leak investigations in Knowl Hill for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Across Wokingham, we cover Knowl Hill and the places around it. Our Reading page covers surveys nearby.
All of RG10 is within our area for roof leak investigations. That includes homes and businesses on Star Lane, Choseley Road and Choseley Close. If you are just outside Knowl Hill, we cover Warren Row (1 mile north-west), Cold Harbour (1 mile south-east), Bowsey Hill (1 mile west), Cockpole Green (2 miles north-west) and Wargrave (2 miles west). Further out, we also cover Reading (8 miles south-west), Wokingham (7 miles south), Woodley (5 miles south-west), Earley (7 miles south-west), Crowthorne (9 miles south) and Lower Earley (7 miles south-west).
Landmarks near Knowl Hill
We work in homes and buildings around Seven Stars Public House And Attached Stables. Knowl Hill’s nearest station is Wargrave station, about 2.7 miles west. Well-known places in the area include Frazer Nash Archives (3.6 miles west) and St Mark's Hospital (3.3 miles east). Open spaces near Knowl Hill include Weycock Hill and Hurley Chalk Pit.
Common questions in Knowl Hill
Will you come out to Knowl Hill?
Yes, Knowl Hill is on our map. Villages and rural addresses get the same survey as a town house.
Is Knowl Hill in the area you cover?
Yes. We survey roofs across London and the South East, and Knowl Hill is part of that. Just ring 07833 053749 or send us an email and tell us about the property.
Is it the same as a RICS Level 2 or Level 3 survey?
No. This is a survey of the roof only, so it is not a RICS Level 2 or Level 3 survey. Many buyers have both.
Why is not the leak directly above the stain?
Rain that gets in will run along whatever it lands on. On a pitched roof it often runs down a rafter before it shows. Tracing that path is the heart of a leak investigation.
Will you fix the leak as part of this?
A leak investigation finds and reports the likely source. The repair is not part of it. The report shows where the water gets in and what should be done.
Do you use thermal imaging to find leaks?
It can, when the conditions are right. It works best after a sunny day, with a dry roof surface and little wind. Damp areas can hold heat differently from dry ones. We always check what it shows with moisture readings.
How much does a roof leak investigation cost in Knowl Hill?
Roof leak investigation starts from £150, including VAT. What you pay for your roof depends on its size, height, access and the package, and it’s agreed before booking.
DIY checks: what’s safe
Your own check is a good start, but it is not a survey. You won’t see flashings, valleys or the backs of chimneys properly from ground level, and those are details a survey looks at closely.
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.
How the survey changes by roof type
Slate and tile slopes
Ridge and hip tiles can loosen as their mortar cracks. Water then gets in along the top of the roof.
Valleys
A valley takes the rain from both sides of the roof. Split lead, cracked linings or slipped tiles let water in.
What affects the cost of roof leak investigations
Every roof is different, so prices are confirmed before you book. This is what makes a difference:
- Any need for thermal images or a drone flight
- The height of the building and how the roof can be seen safely
- Extra roofs, like extensions, dormers or garages
- Commercial roofs and larger buildings
A Basic Survey starts from £150, inc. VAT. The Standard Survey starts from £250 and the Premium Survey from £400, both inc. VAT. We confirm the price for your survey before booking.
What we need to know
The more you tell us, the easier it is to price the survey. When you contact us, tell us:
- Any marks or damp showing indoors
- Anything about access we should know
- What made you get in touch
- The kind of building and roof involved
Our phone lines are open seven days a week, including Saturdays and Sundays. For a price or to book, ring 07833 053749 or email us.
What happens on the day
We look at the roof from outside and, where it’s relevant and there’s safe access, from inside the roof space too. In the loft, the signs we look for are staining, damp, daylight and sagging, as far as the space allows. The whole visit typically takes about 1–2 hours for most homes, though a hard-to-trace leak can take longer. In a hamlet or village like Knowl Hill, a postcode doesn’t always lead to the right gate, so a few directions are welcome. After that, the survey runs as it would anywhere.
- You pick a Basic, Standard or Premium Survey.
- We agree a date, including weekends.
- The investigation works from the stain back to the roof.
- Moisture detection and thermal imaging are used where your package includes them and they help.
- You get photos, the likely cause and clear recommendations.
Getting ready for the survey
- Have any questions written down, so nothing gets missed
- Leave a clear route to the loft
- Keep pets out of the way during the survey
Getting a price
Photos help, if you have them. Pictures from ground level or a window are fine, and please don’t climb up for a closer look. To send them or to book, ring 07833 053749 or email us.