Greater London · London and the South East
Hammersmith Roof Leak Investigation
Wondering about the leaking roof at a property in Hammersmith? We carry out roof leak investigations in Hammersmith and across Greater London, with plain-English findings.
- Damp underlay across a wide area
- Leaks below a flat extension roof
- Damp on a chimney breast
What happens on the day
Once we have finished looking, we write up our findings in a report with photographs, sent to you by email. As for time on site, most surveys take about one to two hours on an ordinary house, and more on a big or complicated roof. From the street, a London terrace typically shows only its front slope or parapet, so a visit in Hammersmith moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, let us know who can let us into the shared parts.
- We help you choose the package that suits the leak.
- A visit is booked for a weekday, Saturday or Sunday.
- 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.
- The report explains the likely entry point and what needs attention.
How to prepare
- If you are buying, check with the agent that we can get in
- Let us know about parking near the property
- Keep pets inside or away from the areas we’re looking at
Booking a survey
We survey roofs seven days a week. To find a date that works for you, ring 07833 053749 or use the contact form.
Advice
Roof leak investigation in Hammersmith: what you get
We use moisture detection and thermal imaging where they help. Moisture detection confirms where timbers, plaster or insulation are damp. Thermal imaging shows temperature differences that can point to wet areas, not water itself, so we confirm what it suggests with moisture readings. Thermal imaging is part of the Premium Survey, and moisture detection comes with Standard. The best thermal results come after a sunny day, with a dry roof and little wind. If you’ve noticed leaks at a dormer or roof window and damp patches next to the stack, we can find out what’s behind it, on slate and tile slopes, valleys and parapet gutters and chimney stacks alike.
London’s Victorian and Edwardian roofs have frequently been repaired many times. Telling wear from a one-off event matters, because insurers usually exclude wear and tear. That’s as true in Hammersmith as anywhere in London. A written record with photographs helps you explain what was found to whoever deals with it next.
Pictures do a lot of the work in our reports, because a photo of a cracked flashing says more than a paragraph. If something couldn’t be seen safely, the report is clear about it.
- Location
- Hammersmith (W6, W14, W12, W4)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Reports
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
What this survey can’t tell you
To be straight with you, a roof survey has limits:
- Carrying out the fix
- Structural calculations (that’s a structural engineer’s job)
- A promise to find every leak on a single visit
Not sure which survey suits your roof? You can ring 07833 053749 or drop us an email and we’ll tell you. What a survey covers and does not.
What we look at
- Rooflights and dormers
- Valleys and parapet gutters
- The roof space
- Slate and tile slopes
- Lead flashings
- Chimney stacks
- Flat roof details
Hammersmith roofs and the weather
Many homes in inner London are Victorian and Edwardian terraces, frequently with Welsh slate roofs. Behind many of their parapets sit butterfly roofs and valley gutters that cannot be seen from the pavement. In a house like that, shared stacks, party-wall upstands and lead flashings all need looking at as far as they can be seen. Each of these roof types has its own typical places for water to get in. With Kelmscott House about 0.5 miles south-west, Hammersmith sits in an area with a long building history. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years.
Shop and office owners around Livat Hammersmith may find that a leak can close part of a shop or office, so finding the cause quickly matters. Anyone responsible for a site like Corona Theatre School will know that water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot.
Hammersmith is about 1 mile west of Kensington, in Greater London. We carry out roof leak investigations for homeowners, landlords and businesses in Hammersmith. Hammersmith is one of the places in Greater London we cover for roof leak investigations. There is also a page for London.
Postcode districts we cover here for roof leak investigations: W6, W14, W12 and W4. That includes homes and businesses on The Square, Ravenscourt Square and Westcroft Square and the roads around them. Nearby, we also carry out roof leak investigations in Brackenbury Village (1 mile north-west), Brook Green (1 mile east), North End (1 mile east), West Kensington (1 mile east) and Old Chiswick (1 mile south-west). Further out, we also cover London (6 miles east), City of Westminster (4 miles east), Marylebone (4 miles north-east), St Pancras (5 miles north-east), Shoreditch (7 miles east) and Walthamstow (11 miles north-east).
Landmarks near Hammersmith
Locally, jobs take us to homes and businesses close to The Duke of Hammersmith pub, Brook Green and Polish Library POSK in London and the streets around them. The nearest railway station is Kensington Olympia station, roughly 0.8 miles east of the centre. A little further out are West London Hospital (under half a mile south-east) and Kurdish Museum Library and Archive (less than half a mile south-west). Open spaces near Hammersmith include Campden Hill and WWT London Wetland Centre.
Hammersmith: your questions answered
Does a conservation area affect roof work in Hammersmith?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you are planning to re-roof in a different material.
Do you carry out roof surveys in Hammersmith?
Yes. We survey roofs across London and the South East, and Hammersmith is part of that. You can phone 07833 053749 or email us with the address and a few details, and we’ll talk through which survey suits.
Why doesn’t the damp patch line up with the hole?
Because water travels. It runs along rafters, battens or underlay before it drips, so the entry point is often well away from the mark. That’s why we trace the route rather than patching above the stain.
When does the report arrive?
Report times are set by the package. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. If you have a deadline, such as an exchange date, tell us when booking.
How long does the visit take?
On site, it typically takes roughly 1–2 hours, more where the leak is intermittent or the roof is large. The report follows within 48 hours for Basic, 24 to 48 hours for Standard and the same day for Premium.
Do you carry professional indemnity insurance?
Our surveys are covered by professional indemnity and public liability insurance. Ask if you need details for a managing agent or building owner.
How do I book a survey in Hammersmith?
Just call 07833 053749 or email us with the address. We’ll ask a few questions, confirm the price and agree a date.
Why get it checked now?
Water damage grows the longer it is left. Wet timbers start to decay, plaster softens and insulation stops working. Finding the source early keeps the damage down. Blocked gutters and hoppers on London houses overflow and soak brickwork, which can lead to damp inside. A blocked outlet ignored for a winter or two can mean damp walls inside.
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. You’ll know the figure before booking.
Why choose Independent Roof Survey in Hammersmith
- Packages from £150, inc. VAT
- Photographs and a written report every time
- Professional indemnity and public liability insurance
- 5,000+ roofs surveyed
Take a look at our cost guide and what we found on two real jobs.
Do you need a roof leak investigation in Hammersmith?
Condensation is frequently mistaken for a leak. Moist air from bathrooms and kitchens condenses on the cold underside of the roof, particularly where ventilation is poor. Wet nail tips and damp underlay over a wide area are classic signs.
People typically book a survey after spotting one of these:
- Brown rings on upstairs ceilings
- Damp on a chimney breast
- Stains around a skylight
- Drips in the loft during heavy rain
Homes near green spaces such as Brook Green can get more leaves in their gutters in autumn, and blocked gutters overflow and soak walls.
Questions to ask before you book
- How much experience they have with roofs like yours
- Whether the price includes VAT
- How soon the report will arrive
- Whether they hold professional indemnity and public liability insurance
What we look for on each type of roof
Valleys
Debris in a valley slows the water and pushes it sideways. In heavy rain, it can spill under the edges of the slates or tiles.
Flat roof upstands and outlets
Each flat roof relies on its outlets to drain. When one blocks, water ponds and finds any weak spot. Outlets and the area around them are looked at.
Landlord and commercial surveys in Hammersmith
Businesses and commercial landlords can book us too, from shops and offices to industrial units. Larger roofs take longer, so they’re priced to suit.
Roof problems in a rented home affect tenants as well as the building. A survey shows what needs attention, so you can plan the work around your tenants.