Greater London · London and the South East
Roof leak investigation in Lower Morden, Greater London
Not sure what state the leaking roof is in? You can book a roof leak investigation in Lower Morden and across Greater London.
- Staining where a gutter or parapet meets the wall
- Damp patches next to the stack
- Water that shows only in certain storms
Roof leak investigations for homes and businesses in Lower Morden
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 we follow where the evidence leads. Every chimney, dormer and roof light adds more joints to check. We look at all of them, from every safe viewpoint. We survey flat roof details, rooflights and dormers and slate and tile slopes, and the problems we are asked to look at most are a leak that comes and goes with the weather and condensation that looks like a leak.
In London, leaks often start somewhere hidden: a butterfly roof’s central valley gutter, a parapet gutter, a chimney flashing or a flat roof over a back addition. For a leak or storm damage in Lower Morden, those hidden details are where the inspection begins. Water from a hidden gutter can run along joists and show up a room or two away.
With the Standard Survey, you also get moisture detection, a structural check and a follow-up consultation. The Premium Survey goes further, with thermal imaging, drone inspection where it applies, structural analysis and an in-person consultation.
- Location
- Lower Morden (SM4, SM3, KT4)
- Region
- Greater London
- Cost
- From £150 inc. VAT
- Report
- Emailed report with photos and recommendations
- When we survey
- Monday to Sunday, daytime
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
How the survey works
When we arrive, we begin with a quick chat about the roof and anything that is worrying you. We then inspect everything that can be seen safely. Most surveys take about one to two hours for most homes, though a hard-to-trace leak can take longer. From the street, a London terrace normally shows only its front slope or parapet, so a visit in Lower Morden moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Let us know who holds the keys.
- You tell us where the water shows and when it appears.
- We check the stain, the ceiling and the loft above it.
- Outside, we look at every likely route in.
- Moisture readings and thermal imaging are used where they help.
- Your report sets out where the water is most likely getting in, with photos and recommendations.
Getting ready for the survey
- Show us where any leaks or stains appear
- Keep pets out of the way during the survey
- Jot down any questions you want answered
Booking a survey
If you’re buying, it helps to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. For any other survey, just ring 07833 053749 or email us when you are ready.
Read more
Checking the roof from ground level
What you cannot do safely is get up close. Roofs are fragile and slippery. That part is for a survey, using safe viewpoints and a drone where applicable.
Keep a simple record: dates of leaks, photos from the ground and any work done on the roof. Share it with us when booking and it will help the survey.
Places near Lower Morden
Other services in Lower Morden
What we cannot see
To be straight with you, there are limits to any roof survey:
- Carrying out the fix
- A structural engineer’s report
- An intermittent leak that shows no trace on the day
If you are not sure which survey you need, ring 07833 053749 or drop us an email and we will give you a straight answer before booking. The full list of what we check.
Roofs we survey in Lower Morden
- Chimney stacks
- Lead flashings
- Rooflights and dormers
- The roof space
- Slate and tile slopes
- Flat roof details
- Valleys and parapet gutters
What a roof leak investigation looks like in Lower Morden
In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. Bay roofs, hip ridges and dormers from later loft conversions are the details that set these houses apart. Each of these roof types has its own typical places for water to get in. Historic houses such as Southside House, about 2 miles north, show how far back building in the area around Lower Morden goes. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first.
Homes near green spaces like Cannon Hill Common can get more leaves in their gutters in autumn, so outlets and downpipes are worth watching. For site and facilities teams at buildings such as Aragon Primary School, a leak through a large roof is often found some distance from where the water shows inside.
Lower Morden is about 2 miles north-west of Sutton, in Greater London. We carry out roof leak investigations in Lower Morden for houses, flats, blocks and commercial buildings. Across Greater London, we cover Lower Morden and the places around it. You can also see our page for London.
Surveys in SM4, SM3 and KT4 are booked the same way as anywhere else. We offer roof leak investigations to properties on Ash Road, Bow Lane and Garth Road and the roads around them. Close by, we survey roofs in Morden (1 mile north-east), Sutton Common (1 mile east), North Cheam (1 mile south), Worcester Park (2 miles south-west) and Stoneleigh (2 miles south-west). Larger places within reach include London (9 miles north-east), City of Westminster (9 miles north), Marylebone (9 miles north), Kensington (8 miles north), St Pancras (10 miles north-east) and Shoreditch (11 miles north-east).
Landmarks near Lower Morden
In Lower Morden, that means homes and buildings near Cannon Hill Common, Lord Nelson pub and Merton College and the streets around them. The closest station to Lower Morden is St Helier station, roughly 0.9 miles east. Well-known places in the area include St. Anthony's Hospital (0.6 miles south) and Cockney Museum (2.1 miles south-west). For a walk, there’s Derwent Floodwash and Henman Hill.
Roof by roof
Chimney stacks
Chimneys let water in through pointing, flaunching, flashings and open pots. We check each one as far as we can safely see.
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 Lower Morden
Landlords, agents and building managers in Lower Morden and across Greater London can book any of our surveys. For a price for a let property or a block, phone 07833 053749 or send us an email.
Letting agents can arrange access with tenants. Surveys run seven days a week, which can make access easier.
What we’re asked to look at in Lower Morden
A chimney stack has lots of places for rain to get in. Eroded pointing, cracked flaunching, failed flashings and open pots can all be responsible. It can show up on the chimney breast, nearby ceilings or in the roof space.
Look out for signs like these:
- Drips in the loft during heavy rain
- Brown rings on upstairs ceilings
- Damp walls below an overflowing gutter
- Damp ceilings under a flat roof
Landlords with a home close to St Helier station may find that finding the cause of a leak fast keeps a tenant’s home dry and the work focused.
Before booking any roof surveyor
- Whether you get a written report with photos
- What follow-up you get after the report
- Whether they hold professional indemnity and public liability insurance
- What they won’t be able to tell you
FAQs for Lower Morden
Will parking be an issue for a roof survey in Lower Morden?
Parking in Lower Morden, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
How do I find out if my home in Lower Morden is listed?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
How much does a roof leak investigation cost in Lower Morden?
Prices start from £150, including VAT. Our Basic Survey starts from £150, the Standard Survey from £250 and the Premium Survey from £400, all inc. VAT.
How do you tell a leak from condensation?
Condensation can look very like a leak. Widespread damp on the underside of the roof in cold weather, with blocked vents, suggests condensation. We check the pattern, take moisture readings and tell you which is more likely.
Do I need to be at home?
Not always. An outside-only look can be arranged beforehand, but anything inside needs someone there to give access.
Do you use drones?
Yes, where it’s applicable. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and every flight depends on the airspace and the weather.
Can thermal imaging help find my roof leak?
Thermal imaging is used where it’s useful, and it is included in our Premium Survey. It shows temperature differences, not water itself, so we confirm its findings with moisture readings.