Hertfordshire · London and the South East
Pre-Purchase Roof Survey in Knebworth
An experienced roof surveyor for pre-purchase roof surveys in Knebworth. Over 5,000 surveys and 20+ years behind us.
- Cracked flaunching or crumbling chimney pointing
- Damp timbers or stains in the loft
- Blistered or split felt on a flat roof
Pre-purchase roof survey in Knebworth
Some roofs can’t be seen well from ground level or from windows. Our Premium Survey includes thermal imaging and, where applicable, a drone inspection, along with a same-day report. Where a flight is not possible, because of airspace rules or the weather, we tell you and look from the ground, windows and the loft instead. We survey chimney stacks, the roof space and natural slate, and common reasons people get in touch are gaps where slates or tiles have come loose and roof slopes that look uneven or sagging.
In a smaller place like Knebworth, homes are mostly houses and bungalows, from older cottages to more recent builds. In older homes, the slates or tiles can outlast the nails, battens and underlay holding them. For a purchase or a newly replaced roof, what’s under the coverings matters as much as what’s on top. Breathable membranes only appeared in the late 1990s, so older roofs often have bitumen felt or nothing at all.
You can share the report with anyone who needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent, whichever applies.
- Place
- Knebworth (SG3)
- Region
- Hertfordshire
- Price
- From £150 inc. VAT
- Reports
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
Questions from Knebworth
Do you cover Knebworth?
We do. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.
Do you cover smaller places like Knebworth?
Yes, Knebworth is on our map. A small place gets exactly the same survey as a big one.
How long will you be at the property?
On site, it normally takes roughly 1–2 hours at most homes, with bigger or more complicated roofs taking longer. The report follows within 48 hours for Basic, 24 to 48 hours for Standard and the same day for Premium.
Do you carry professional indemnity insurance?
Professional indemnity and public liability insurance cover our surveys. If you need details for a managing agent or a building owner, just ask.
What’s the best way to book?
To arrange a survey, call 07833 053749 or use the contact form with the address, the type of property and what’s prompted the survey. We’ll confirm the price and agree a day with you.
Do you inspect the roof from on top?
When conditions and the roof make it safe, yes. We also inspect from ground level, upper windows and the loft space, and a drone is part of the Premium Survey where applicable.
Is this an asbestos survey?
No. Our report may flag materials that could contain asbestos, but only a specialist asbestos surveyor can confirm it. It may be present in buildings built or refurbished before 2000.
Towns and villages near Knebworth
Also in Knebworth
Rented homes, blocks and businesses
Letting agents can arrange access with tenants. We survey on weekdays, Saturdays and Sundays, which can make access easier.
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.
Pre-purchase roof surveys in Knebworth: local notes
If your survey includes the drone, we check the Drone Safety Map for restrictions before flying. About 1.3 miles north-west lies Knebworth House, a reminder of how long the area around Knebworth has been built on. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area.
For an older house near a landmark like Church of St Martin, the roof may have had decades of patch repairs, and the survey shows where they are. If you own a rental within reach of Knebworth station, a roof report gives you a clear picture before you buy or settle up with a roofer.
Knebworth is about 3 miles south of Stevenage, in Hertfordshire. We survey roofs in Knebworth across London and South East England. Our area takes in places right across Hertfordshire, large and small. You can also see our page for London.
We survey roofs across SG3 for pre-purchase roof surveys and the streets around it. We offer pre-purchase roof surveys to properties on London Road, Deanscroft and Lytton Fields and the roads around them. If you’re just outside Knebworth, we cover Woolmer Green (1 mile south), Bragbury End (1 mile north-east), Oaklands (2 miles south), Datchworth (2 miles south-east) and Shephall (2 miles north). Further out, we also cover Hemel Hempstead (14 miles south-west), Stevenage (3 miles north), St Albans (10 miles south-west), Bishop's Stortford (15 miles east), Welwyn Garden City (5 miles south) and Harpenden (8 miles south-west).
Local landmarks in Knebworth
We work in homes and buildings around Barnwell School and Knebworth Park and the streets around them. There is a railway station in Knebworth itself: Knebworth station. A little further out are Benington Castle (3.6 miles north-east) and Datchworth Museum (1.7 miles south-east). Green spaces nearby include Mardley Heath.
What affects the cost of pre-purchase roof surveys
All our prices include VAT. The things that change the price are:
- The use of thermal imaging or a drone
- Building height and the viewpoints available
- How big the roof is
- House, block, shop or office
Prices quoted always include VAT, and the written report is part of the package. Our price is from £150, including VAT. Size, height and access decide where your roof falls.
What we need to know
What helps most when you contact us:
- Any marks or damp showing indoors
- What made you get in touch
- Your timetable, such as an exchange date
- Any photos you have, taken from ground level or a window
If you’re buying, it is useful to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply ring 07833 053749 or use the contact form whenever suits you.
What happens if roof problems are left?
Leaving it means judging the roof from the street. That won’t show slipped slates on the rear slope, a worn valley or cracked flaunching. We fill that gap before you’re tied in. Tradespeople may need to travel further to a smaller place like Knebworth, so it is useful to plan roof work rather than call someone out in a hurry. Knowing early gives you time to get the right people in.
A Basic Survey starts from £150, inc. VAT. Standard is from £250 and Premium from £400, both with VAT included. We confirm the price for your roof before you book.
What you get with us
- Weekday and weekend surveys
- Over 5,000 surveys carried out
- Package prices that include VAT
- 20+ years’ experience
Roof by roof
Lead flashings and valleys
Flashings close the gaps at chimneys, walls and abutments. We check whether they’ve lifted, split or been replaced with mortar or bitumen.
Gutters and parapets
Hidden gutters behind parapets send water indoors when they block. Where we can see them safely, we check the linings and outlets.
How it works
We will ask a few questions first, about the roof’s history, any leaks and past repairs. Then the inspection itself takes roughly 1–2 hours at the house you’re buying, depending on its size and how much of the roof can be seen. A visit to Knebworth is planned like any other: the time, the access and where to park are agreed in advance. Weekday and weekend visits are both possible. If there are outbuildings or garages you want looked at, mention them.
- You get in touch after your offer is agreed, with the address and your target exchange date.
- Access is arranged through you, the agent or the seller.
- We inspect the roof from ground level, windows, the loft and the roof itself where it is safe.
- We check and photograph the slates or tiles, ridges, valleys, flashings, chimneys and gutters.
- You receive a written report with photos and recommendations to read before exchange.
Before the survey
- Let us know about parking near the property
- For flats, make sure roof access has been agreed
- Make sure pets are kept safely away
Arrange a survey
When you’re ready to go ahead, call 07833 053749 or use the contact form. We will suggest a package, agree the price and find a date, weekday or weekend.
Related advice
What you can safely check yourself
It helps to keep a record: when leaks happen, ground-level photos and any past roof work. Share it with us when you book, as it helps us focus the survey.
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it, which helps when we check the roof.