Greater London · London and the South East
Harlesden Chimney Survey
A careful look at the chimney stack at your property in Harlesden, and put it all in a photo-illustrated written report.
- Mortar washing out of the joints
- Pots or cowls that look unsafe
- Flashings pulling away from the stack
Why get it checked now?
Cracked flaunching and worn pointing are often modest repairs when they’re caught early. Leave it, and frost can work the stack loose, and the work grows. Any roof job in Harlesden means planning around parking, neighbours and access. Knowing what’s needed early gives you time to plan it calmly, rather than in a rush after a leak.
Every price we give includes VAT. Chimney survey starts from £150, including VAT. You will know the exact price before booking.
Why choose Independent Roof Survey in Harlesden
- Drone flown under a CAA Flyer ID and Operator ID
- 5,000+ roofs surveyed
- Drones and thermal imaging where it applies
- Every finding written up with photos
Take a look at how roof surveys are priced and what we found on two real jobs.
About our chimney survey in Harlesden
If a chimney looks out of line, it is worth getting it checked. Stacks can lean when mortar on one side breaks down, often after years of flue gases and damp. The survey notes how the stack looks, how far it seems to lean and the state of the bricks and joints. If the stack looks like a structural issue, the report recommends a structural engineer. We survey shared and party-wall stacks, chimney pots and cowls and lead flashings, and people most often book us about mortar washing out of the joints and a chimney out of line.
Victorian and Edwardian terraces are found right across London, many with Welsh slate roofs, shared chimney stacks and parapet or valley gutters. Slates can last a century or more, but the nails holding them corrode, and slates slip. Homes in Harlesden are no exception. Lead flashings and shared chimney stacks on these houses need a careful look too.
Every survey ends with a written report, with photographs, sent by email. It sets out the condition of the chimney stack, any defects and our written recommendations.
- Place
- Harlesden (NW10, W3, NW26)
- Wider area
- Greater London
- Cost
- From £150 inc. VAT
- Your report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Tips from our surveys
Getting the most from a chimney survey starts before we arrive and carries on afterwards. Tips:
- Have the flue swept and checked if you use the fire
- Glance at the stacks from the street now and then
- Check with the council before altering a stack in a conservation area or on a listed building
- Use the report as a baseline for future checks
After the visit, we write up the report with photographs of each stack. It covers the pots, flaunching, pointing, brickwork and flashings, and any damp we found inside. Basic reports arrive within 48 hours, Standard reports in 24 to 48 hours and Premium reports the same day.
Check fixings on the stack are sound, and moved if they’re working it loose. Less load on the stack means less strain in wind.
Your questions about chimney surveys in Harlesden
Does a conservation area affect roof work in Harlesden?
We can’t confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case.
Can a landlord with a rental near Willesden Junction station book a roof survey?
Yes, that’s a common request. Let us know whether a tenant or an agent will let us in, and we can send the report to you or your agent.
What happens after the survey?
The report arrives by email. With Standard there’s a follow-up consultation; with Premium, an in-person consultation.
Should I worry about a leaning stack?
Do not ignore it. Leaning often comes from mortar breaking down unevenly. The survey records what we can see, and a structural engineer can assess whether it needs work.
What insurance do you have?
Our cover is professional indemnity plus public liability, and details are available on request.
Does the report include photos?
Yes, every report has them. Each finding is shown in a picture where possible, so you can see what we mean.
Is it a structural engineer’s report?
No. Our survey is not a structural engineer’s report, and it doesn’t include calculations. If we see signs that need an engineer’s opinion, we’ll recommend one.
When you need someone else
Without opening up the roof, some things stay hidden, and that sets some limits:
- Parts of the stack that cannot be seen safely or belong to a neighbour we can’t access
- The inside of the flue, which needs a sweep or flue specialist
- Hidden damage within the stack
If you’re not sure which survey you need, call 07833 053749 or use the contact form and we will give you a straight answer before you book. What our survey covers.
What this survey covers
- Flaunching
- Brick chimney stacks
- Chimney pots and cowls
- Chimney breasts
- Shared and party-wall stacks
- Lead flashings
Local roofs in Harlesden
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. On roofs like these, good slates or tiles can outlast the nails, battens, lead and mortar around them. With Pitzhanger Manor about 3.1 miles south-west, Harlesden 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, and the council can say whether a home is in a conservation area.
For site and facilities teams at buildings like John Keble CofE Primary School, large buildings have long gutter runs and big roofs that need checking like any other. If you look after a shop, office or commercial unit, for instance near London Designer Outlet, a written record of the roof’s condition helps you plan maintenance rather than react to leaks.
Harlesden is about 4 miles west of City of Westminster, in Greater London. We carry out chimney surveys in Harlesden for houses, flats, blocks and commercial buildings. We cover towns and villages across Greater London, large and small. London is in our area too.
Chimney surveys in NW10, W3 and NW26 work the same way as everywhere else we cover. That includes homes and businesses on Fry Road, Wood Road and Park Road and the roads around them. We also cover College Park (1 mile south-east), Old Oak Common (1 mile south), Church End (1 mile north), Stonebridge (1 mile north-west) and Willesden Green (1 mile north-east). Larger places within reach include London (7 miles east), City of Westminster (4 miles east), Marylebone (5 miles east), Kensington (3 miles south-east), St Pancras (6 miles east) and Shoreditch (7 miles east).
Local landmarks in Harlesden
Around Harlesden, our work takes us to homes and buildings near St Claudine's Catholic School for Girls, Royal Oak Inn and Roundwood Park and the streets around them. There is a railway station in Harlesden itself: Willesden Junction station. Other landmarks nearby include Central Middlesex Hospital (1 mile west) and Brent Museum and Archives (1.1 miles north-east). Not far away are Castlebar Hill and The Long Water.
Rented homes, blocks and businesses
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.
Landlords, agents and building managers in Harlesden and across Greater London can book any of our surveys. To discuss a property or a block, ring 07833 053749 or send us an email.
Nearby places to Harlesden
Also in Harlesden
Signs you need a chimney survey in Harlesden
Many chimneys are no longer used. A stack sealed without ventilation can trap damp. Damp patches can appear on chimney breasts even when nothing is leaking.
Look out for signs like these:
- A chimney out of line
- Lifted or split lead flashings
- Spalled or crumbling bricks
- Unused flues sealed without airflow
Living close to Roundwood Park is pleasant, but mature trees mean leaves in gutters and valleys each autumn.
Before you book any roof surveyor
- How soon the report will arrive
- Whether the inside of the roof is included
- What experience they bring
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
How it works
We do not take risks to get a closer look. Everything that can safely be seen is inspected, and anything we can’t see is noted in the report. The survey normally takes about one to two hours for most homes, a little longer where there are several stacks. Many London properties are flats or terraces with no side access, so the back of the roof is often seen from upstairs windows, from inside or, where a flight is allowed, from the air. If the building has a managing agent or access rules, tell us when you book.
- You tell us whether any stacks are shared, unused or leaning.
- We check the roof around each stack, including the flashings.
- We check the flaunching and pots on every stack.
- Any lean, spalling or worn pointing is recorded.
- The report explains the condition and which work is most urgent.
How to prepare
- If the roof is shared, arrange access with whoever manages the building
- Unlock side gates and any roof access doors
- Tell us about parking before the day
Booking a survey
Once you know what you need, phone 07833 053749 or email us. From there it is a case of choosing a package, agreeing the price and fixing a day, weekday or weekend.