Kent · London and the South East
Chimney survey in Knatts Valley, Kent
Chimney surveys in Knatts Valley, with over 20 years’ experience behind it. You get a clear report with photos.
- Damaged chimney pots and cowls
- Damp patches on chimney breasts
- A chimney out of line
Chimney surveys for homes and businesses in Knatts Valley
Damp on a chimney breast can have several causes. Water may be getting in at the top through cracked flaunching or an uncapped pot, through the brickwork, or at the flashings. Condensation inside an unventilated stack is another common cause. Our survey checks each of these and records the likely cause. You then know where to start. We’re often asked to look into damaged chimney pots and cowls and a chimney out of line, on shared and party-wall stacks, lead flashings and flaunching.
Some older homes in villages like Knatts Valley are listed or in a conservation area. If yours is, re-roofing in different materials may need consent, so the council is the place to check. A roof report helps you plan work with that in mind. Where a building is listed, matching the existing roof materials is frequently expected.
We write the report in plain English, so it makes sense without any roofing background. Photos show what each point refers to.

- Place
- Knatts Valley (TN15)
- Region
- Kent
- Price
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- Survey days
- Weekdays and weekends
- Insurance
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Your questions about chimney surveys in Knatts Valley
Is Knatts Valley within the area you cover?
We do. Villages and rural addresses get the same survey as a town house, with the route planned beforehand.
How do I find out if my home in Knatts Valley is listed?
We cannot confirm that for you, but Historic England’s list and your council can. Both listing and conservation areas can limit changes of roofing material.
What will the report tell me?
It sets out what we found, why it matters and what we recommend, backed by photos. Anything we couldn’t see safely is noted too.
My chimney looks like it is leaning. What should I do?
It is worth having a leaning stack checked. Our survey notes how it looks and the condition of the bricks and joints, and if it may be a structural issue, we recommend a structural engineer.
Do you need to go on the roof to check the chimney?
We use safe viewpoints rather than climbing onto the stack. A drone inspection is part of the Premium Survey where applicable. Any area we couldn’t view is noted.
Do you climb onto every roof?
Not unless it is safe. Safe viewpoints, the roof space and a drone where applicable cover most of what’s needed.
Should a redundant chimney be removed?
A redundant chimney needs looking after like any other. If it is capped without ventilation, damp can build up inside. Our survey records its condition and how it is capped, so you can plan what to do with it.
Landlord and commercial surveys in Knatts Valley
Buyers’ agents can book surveys on behalf of their clients. The report is emailed, so it can go straight to your client, photographs included.
With a portfolio of properties, surveys can be booked for more than one address. To arrange surveys for several addresses, ring 07833 053749 or send us an email with the addresses.
Chimney surveys around Knatts Valley
Historic houses like Lullingstone Castle, about 2.8 miles north-west, show how far back building in the area around Knatts Valley goes. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and any change of roofing material on a listed home needs checking with the council first. Handmade clay tiles, including Kent peg tiles hung on pegs through two holes, are typical of older Kent buildings. You’ll also find oast houses and timber-framed Wealden hall houses among the county’s older buildings. Each of these coverings has its own weak points, from fixings and valleys to flashings, chimneys and gutters.
The streets around a church such as Church of Saint Mary the Virgin are often among the oldest in a place, and if you own one of the older houses nearby, its chimney, valleys and lead work are likely to be the parts that need attention first. If you let a flat or house near Kemsing station, a roof report helps you deal with small faults before they turn into a call from a tenant.
Knatts Valley is about 4 miles north-east of Sevenoaks, in Kent. Roofs in Knatts Valley get the same thorough look as anywhere else in Kent. Our Kent coverage includes Knatts Valley. Our Maidstone page covers surveys nearby.
Chimney surveys in TN15 work the same way as everywhere else we cover. You’ll find streets such as Knatts Lane and Knatts Valley Road, and we cover them all. Close by, we survey roofs in East Hill (1 mile north-west), Woodlands (1 mile south), Romney Street (1 mile west), West Kingsdown (1 mile north-east) and Cotman's Ash (1 mile south). Further out, we also cover Maidstone (13 miles east), Dartford (8 miles north), Sevenoaks (4 miles south-west), Royal Tunbridge Wells (14 miles south), Gravesend (9 miles north-east) and Tonbridge (9 miles south).
Around Knatts Valley
Around Knatts Valley, our work takes us to homes and buildings near Kemsing Down, among other places. Knatts Valley’s nearest station is Kemsing station, about 2.5 miles south of the centre. Other landmarks nearby include Sevenoaks Hospital (3.9 miles south-west) and Kemsing Castle Bank (2 miles south-west).
What happens on the day
Photos are taken throughout the visit, so you can see in the report what we found and where. We take close-ups from wherever is safe, including by drone where it is applicable and the weather allows. A typical visit takes about 1–2 hours for most homes, a little longer where there are several stacks. Cottages and farmhouses around Knatts Valley often have roofs at several levels, with lean-tos and outbuildings attached. We work round each section in turn, from the safest viewpoints.
- You tell us how many stacks there are and any damp or problems you’ve noticed.
- The stacks are looked at from the ground, from windows and from other safe vantage points.
- We check and photograph the pots, cowls, flaunching, pointing and flashings.
- We check the chimney breasts and the stack in the loft space where we can reach them.
- The findings are written up with photos and recommendations and emailed to you.
Before the survey
- Have any paperwork from past roof work to hand
- Mention any parking restrictions on your street
- If you’re buying, let the agent know when we’re coming
Arrange a survey
Our phone lines are open seven days a week. To book or ask a question, call 07833 053749 or use the contact form.
Read more
Checking the roof from ground level
The one thing to avoid is getting up close. Roofs are fragile and slippery. That part is for a survey, using safe viewpoints and a drone where applicable.
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date, which helps when we look at the roof.
When to book a survey in Knatts Valley
Lots of homes have redundant stacks. A stack sealed without ventilation can trap damp. Damp patches can appear on chimney breasts even when nothing is leaking.
We are frequently asked to look at:
- Loose, cracked or missing pots
- Cracked or missing flaunching
- Mortar washing out of the joints
- Bricks with flaking faces
Living close to Kemsing Down is pleasant, but mature trees mean leaves in gutters and valleys each autumn, and blocked gutters overflow and soak walls.
Choosing a roof surveyor
- What they won’t be able to tell you
- What the report includes, and whether it has photographs
- What happens after the report arrives
- How they plan to inspect the roof safely
Honest limits
We only report whatever is safely visible on the day, so there are some things a survey can’t cover:
- A structural engineer’s assessment
- Flue inspections or sweeping
- Parts of the stack that cannot be seen safely or belong to a neighbour we can’t access
Not sure which survey suits your roof? You can call 07833 053749 or drop us an email and we’ll tell you before booking. What our survey covers.
What we look at
- Flaunching
- Shared and party-wall stacks
- Lead flashings
- Chimney breasts
- Brick chimney stacks
- Chimney pots and cowls
Nearby places to Knatts Valley
More services for Knatts Valley
How the survey changes by roof type
Chimney pots and cowls
Each pot is bedded into the flaunching, often with a cowl or cap on top. We check that they look secure and undamaged.
Flaunching
Cracked flaunching is one of the most common chimney defects we record. It’s usually a modest repair when it’s caught early.