Greater London · London and the South East
Chimney survey in Greenhill, Greater London
Chimney surveys across Greenhill, backed by more than 20 years’ experience. You get a clear report with photographs.
- Lifted or split lead flashings
- Pots or cowls that look unsafe
- Disused chimneys trapping moisture
Greenhill questions
How do I find out if my home in Greenhill is listed?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you’re planning to re-roof in a different material.
Can a landlord with a rental near Harrow-on-the-Hill station book a roof survey?
Yes, landlords and agents are among the people we work for. You can call 07833 053749 or send us an email with the address and what you need.
What do you check on a chimney?
The whole stack, as far as it can be seen safely: from the pots and flaunching down to the flashings. We also note leaning, redundant stacks and damp inside.
How experienced are you?
We have more than 20 years’ experience and have completed over 5,000 surveys across London and South East England.
What causes damp on a chimney breast?
Usually it is water getting in from outside, or condensation in a sealed stack. We check the stack, the flashings and how unused flues are capped and records the likely cause.
Is it a structural engineer’s report?
No. We note visible signs like sagging or deflection, but we’re not structural engineers and don’t carry out calculations. Where an engineer is needed, we say so in the report.
How do I book a survey in Greenhill?
It is easiest to phone 07833 053749 or email us. Give us the address and a few details about the roof, and we will suggest the right survey. We survey on weekdays, Saturdays and Sundays.
How a chimney survey works in Greenhill
A leaning chimney stack is worth having looked at. Stacks can lean when mortar on one side breaks down, often after years of flue gases and damp. We record the lean and the condition of the brickwork and pointing. If the stack looks like a structural issue, the report recommends a structural engineer. If you are worried about damp patches on chimney breasts and frost-damaged brickwork on the stack, we can find out what’s behind it, on flaunching, lead flashings and chimney breasts alike.
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 Greenhill are no exception. Lead flashings and shared chimney stacks on these houses need a careful look too.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Where
- Greenhill (HA1, HA3, HA2)
- Wider area
- Greater London
- Prices
- From £150 inc. VAT
- Reports
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Insurance
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Roof by roof
Chimney pots and cowls
On redundant flues, we check how the pots are capped. Capping without ventilation can trap moisture.
Brick stacks
Older brick stacks often have soft lime mortar. Repairs should suit the original materials, which we mention where relevant.
What a chimney survey looks like in Greenhill
The wider area around Greenhill has a long history of building, with Headstone Manor about 1.1 miles north-west. Older roofs in the wider area can hide decades of patch repairs, so the detail matters. Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, often with hipped roofs of clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Whichever you have, the details that tend to fail before the covering itself get the closest look.
Trees in and around Northwick Park shed leaves that can end up in nearby gutters, so outlets and downpipes are worth watching. If you look after a shop, office or commercial unit, for example near St. Anns, a dated report on the roof is useful for planning and for any lease discussions. If you look after a building such as Saint Jerome Church of England Bilingual School, a written record of a large roof helps plan work for the holidays rather than in term time.
Greenhill is about 1 mile north-east of Harrow, in Greater London. We carry out chimney surveys in Greenhill for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Our Greater London coverage includes Greenhill. You can also see our page for London.
All of HA1, HA3 and HA2 is covered for chimney surveys, from the main roads to the quietest streets. We cover properties on Lyon Road, Hill Road and Byron Road. Neighbouring places we cover for chimney surveys include Wealdstone (1 mile north), Northwick Park (1 mile south-east), Harrow (1 mile south-west), Kenton (1 mile east) and Roxeth (1 mile south-west). Larger places within reach include London (12 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles south-east), Kensington (8 miles south-east), St Pancras (10 miles south-east) and Shoreditch (12 miles east).
Around Greenhill
In Greenhill, that means homes and buildings near Royal Oak pub, Northwick Park and Harrow High School, among other places. There’s a railway station in Greenhill itself: Harrow-on-the-Hill station. Nearby you will also find St. Anns (within half a mile south-west) and Hilfield Castle (4.8 miles north). For a walk, there is Masons Field and Northala Fields.
How the survey works
It is useful to start with what’s prompted the survey: a purchase, a leak, a storm, new work or simply peace of mind. It helps us focus on what matters most to you. Most visits take an hour or two for a house; commercial roofs usually need 3–4 hours. For a visit in Greenhill, parking and access are the things to plan: let us know about parking, the floor the property is on, any shared entrance and loft access. On the day, the roof is looked at from the ground, from windows, from inside the loft space and from the roof where it’s safe.
- We start by noting which stacks are in use, shared or causing concern.
- We check the roof around each stack, including the flashings.
- The top of each stack is checked for cracked flaunching and loose pots.
- Any lean, spalling or worn pointing is recorded.
- You receive a written report setting out what needs attention first.
Before the survey
- Find any records of previous roof work
- Keep pets in another room
- For flats, check roof access has been agreed
Arrange a survey
Unsure which package suits your roof? It’s easiest to call 07833 053749 or email us and describe the roof and what’s worrying you. We’ll explain the options and the price.
Related advice
Nearby places to Greenhill
Other services in Greenhill
For landlords and managing agents
A roof problem in a let property affects your tenants as well as the building. A survey shows what needs attention, so you can plan the work with less disruption.
Letting agents can arrange access with tenants. We survey on weekdays, Saturdays and Sundays, which helps when tenants work during the week.
What this survey cannot tell you
Our survey isn’t a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Hidden sides of a shared stack
- Conditions inside walls
- A structural engineer’s assessment
If in doubt, call 07833 053749 or email us and we’ll recommend the right survey. What our survey covers.
Roof types and parts we check
- Lead flashings
- Chimney breasts
- Flaunching
- Shared and party-wall stacks
- Chimney pots and cowls
- Brick chimney stacks
Why it’s worth a survey now in Greenhill
Loose pots and bricks on a stack are a safety concern. A survey picks them out so they can be made safe by a roofer. Many older London roofs have only old felt under the slates, or no underlay at all, so a slipped slate can soon mean water inside. Left alone, that means wet timbers and plaster, which is a far bigger job than the roof fault itself.
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. The price is confirmed before booking.
What you get with us
- 20+ years’ experience
- PI and public liability insurance
- Plain-English reports with photos
- Packages from £150, inc. VAT
Read how roof surveys are priced and what we found on two real jobs.
What affects the price in Greenhill
Every roof is different, so prices are confirmed before booking. These are the things that affect it:
- Basic, Standard or Premium
- The type of building, from a house to a block or an office
- Extra roofs, like extensions, dormers or garages
- The height of the building and how the roof can be seen safely
Thermal imaging and drone inspection (where it applies) come with the Premium Survey, which starts from £400, including VAT. We can help you choose the package that fits what you need to know.
Helping us price your survey
Here’s what helps us most when you contact us:
- Any photos you have, taken from ground level or a window
- Any deadline, like an exchange date
- Where water is showing inside, if it is
- Access details, such as a loft hatch or a shared roof
To arrange a survey, phone 07833 053749 or email us and tell us the address and what’s prompted the survey. You will know the price before anything is booked.