Slough · London and the South East
Roof Leak Investigation in Longford
Tracing where water is getting into your roof around Longford, with a written report you can act on. Weekday and weekend visits available.
- Stains around a skylight
- Wet patches high on an inside wall
- Ceiling stains that grow after rain
What a roof leak investigation looks like in Longford
With Frogmore House about 4.3 miles west, Longford sits in an area with a long building history. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and a listed home or one in a conservation area may need consent for changes of material. Older houses in the South East frequently have slate or clay tile roofs, while many later estates have concrete tiles, and flat-roofed additions turn up almost everywhere. Where water gets in depends a good deal on what the roof is made of and how it’s detailed.
Landlords with a home close to Heathrow Terminal 5 Rail station may find that tracing a leak quickly matters when a tenant is living with it. A roof leak in a hotel or guest house around Longford means lost rooms as well as repairs, so it pays to find faults before guests do.
Longford is about 2 miles south-west of West Drayton, in Slough. Wherever you are in Longford, we can carry out roof leak investigations at your property, on a weekday, Saturday or Sunday. Our area takes in places right across Slough. You can also see our page for Guildford.
All of SL3, UB7 and TW6 is within our area for roof leak investigations, from the main roads to the quietest streets. Local streets include Wallis Road, Widgeon Road and Stanwell Moor Road, and we cover them all. Main roads around Longford include the A3044, which makes travel easy. Neighbouring places we cover for roof leak investigations include Harmondsworth (1 mile north-east), Stanwell (2 miles south-east), Heathrow (2 miles east), Sipson (2 miles north-east) and West Bedfont (2 miles south-east). Within a short drive, we also cover Slough (6 miles north-west), Cippenham (7 miles north-west), Chalvey (5 miles west), Britwell (7 miles north-west), Langley (3 miles north-west) and Upton (5 miles north-west).
Landmarks near Longford
Around Longford, our work takes us to homes and buildings near The Kings Arms and Arthur Jacob Nature Reserve and the streets around them. The nearest railway station is Heathrow Terminal 5 Rail station, roughly 0.5 miles south-east of the centre. Nearby you will also find Windsor Castle (4.8 miles west) and Harlington (2.1 miles north-east). For a walk, there’s Crane Meadows and Staines Reservoirs.
About our roof leak investigation in Longford
Moisture readings and thermal imaging are used where they’re useful. Moisture readings show which materials are wet. 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. We survey lead flashings, chimney stacks and the roof space, and people most often book us about damp patches next to the stack and a leak that comes and goes with the weather.
Roofs in small places like Longford frequently stand in the open, so storms hit ridges, verges and chimneys hard. Once water gets into older walls, it takes a long time to dry, which makes finding the cause quickly worthwhile. A written record also helps if you need to explain it to anyone else.
It isn’t only a list of defects. It explains what we found, why it matters and what we recommend.
- Where
- Longford (SL3, UB7, TW6)
- Wider area
- Slough
- Price
- From £150 inc. VAT
- Report
- A written report with photos, by email
- When we survey
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Places near Longford
Other services in Longford
How we price roof leak investigations
To price your survey, we check:
- Building height and the viewpoints available
- How many separate roofs there are, like extensions, dormers and garages
- Which survey package you book
- The roof’s overall size
The Premium Survey includes thermal imaging and drone inspection where applicable, from £400 with VAT included. We will tell you which package suits the questions you have.
What to let us know when you contact us
These details help when you contact us:
- Access details, such as a loft hatch or a shared roof
- Why you want a survey: buying, a leak, a storm or new work
- Where any leaks, stains or damp patches show inside
- Dates you are working to, such as exchange
You can call us seven days a week, including Saturdays and Sundays. For a price or to book, call 07833 053749 or email us.
How the survey changes by roof type
Chimney stacks
We look at the outside of the stack and the breast inside, not a flue, gas or sweep inspection.
Slate and tile slopes
Slipped, cracked or missing slates and tiles let rain onto the underlay. Ageing felt eventually lets water through.
Why it is worth a survey now in Longford
Water and electrics do not mix. If water is reaching a light fitting or switch, keep clear of it. Then the source needs tracing. In a place like Longford, a barn or garage roof left to fail puts whatever is inside at risk. A quick look before winter can save a lot.
Prices start from £150, including VAT. Basic starts from £150, Standard from £250 and Premium from £400, VAT included.
What you get with us
- Independent findings on the roof’s condition
- Visits on any day of the week
- PI and public liability insurance
- 20+ years’ experience
See our cost guide and our case studies.
Signs you need a roof leak investigation in Longford
A chimney stack has lots of places for rain to get in. Water can enter through crumbling mortar, cracked flaunching, worn flashings or uncapped pots. The damp may appear on a chimney breast, a ceiling or in the loft.
These are some of the problems a survey can pick up:
- Water that shows only in certain storms
- Damp walls below an overflowing gutter
- Damp ceilings under a flat roof
- Damp patches next to the stack
If you live near a park such as Arthur Jacob Nature Reserve, or anywhere with mature trees, autumn leaves can block gutters and valleys, and blocked gutters overflow and soak walls.
Before you book any roof surveyor
- What follow-up you get after the report
- Which parts of the roof they’ll actually see
- Whether any drone flown is registered with the CAA
- Which limits apply to the survey
The survey, step by step
We work from the outside in: first the slopes, edges and gutters from every safe viewpoint, then the roof space where it can be reached. All told, expect an hour or two for a house, rising to roughly 3–4 hours on a commercial building. Somewhere like Longford needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. On the day, we inspect what can be seen safely, inside and out.
- We start with your notes and photos of the leak.
- We examine the damp area and the rooms near it.
- From the loft space, we trace the water’s route where there is safe access.
- Outside, we check flashings, valleys, chimneys, gutters and flat roof details from every safe viewpoint.
- You receive a report with the likely source, photos and recommendations.
Preparing for the visit
- If you are buying, let the agent know when we’re coming
- Keep pets inside or away from the areas we are looking at
- Point out any leaks or damp patches
Book a survey
To book a survey, phone 07833 053749 or drop us an email and let us know the address and what’s prompted the survey. We’ll confirm the price before booking.
Related advice
For landlords and managing agents
Landlords and agents in Longford book surveys as well as householders. A report with photos gives you a clear record of the leaking roof, useful for planning maintenance.
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.
Questions from Longford
Will you come out to Longford?
Yes, Longford is covered. Our area covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it’s useful to know about access.
Is my home in Longford listed or in a conservation area?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Will you definitely find the leak?
We can’t promise to find every leak on one visit. Most leave clues we can follow, but intermittent leaks that need particular weather can be harder. We report what we found and the likeliest sources.
Will you check the loft?
If the survey needs it and the roof space can be reached safely, yes. Please clear anything stored under the hatch.
How long does a roof leak investigation take?
The visit usually takes about 1–2 hours at most homes, while a commercial roof takes nearer three to four hours. We’ll confirm what to expect when we arrange the visit.
Why doesn’t the damp patch line up with the hole?
Water rarely drops straight down. It runs along rafters, battens or underlay before it drips, so the stain may be some distance from where it gets in. That is why we trace the route rather than patching above the stain.
Do you use thermal imaging to find leaks?
We use thermal imaging where it helps, and it’s part of the Premium Survey. It shows temperature differences, not water itself, so we confirm its findings with moisture readings.