Hertfordshire · London and the South East
Flat Roof Survey in Old Knebworth
Flat roof surveys in Old Knebworth from an independent, experienced roof surveyor. Over 5,000 surveys and 20+ years behind us across London and the South East.
- Splits and cracks in the covering
- Damaged trims at the roof edge
- Blistering in felt or asphalt
Flat roofs in Old Knebworth
The wider area around Old Knebworth has a long history of building, with Knebworth House about 0.2 miles north-west. If your house is among the older ones, expect a mix of original materials and later repairs on the roof, and any change of roofing material on a listed home needs checking with the council first. Older houses in the South East frequently have slate or clay tile roofs, while many later estates have concrete tiles, with flat-roofed extensions, dormers and garages common everywhere. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
If you look after a building such as Barnwell School, a large flat roof with lots of outlets and rooflights has many places where a membrane can fail. If you own a rental within reach of Knebworth station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Old Knebworth is about 3 miles south-west of Stevenage, in Hertfordshire. Surveys in Old Knebworth work the same way as everywhere we cover: a close look at whatever is safely visible, photographs and a clear written report. Old Knebworth is one of the towns and villages in Hertfordshire we cover. There’s also a page for London.
Flat roof surveys in SG3 work the same way as everywhere else we cover. If you need a flat roof survey at a property on Old Knebworth Lane and Park Lane or a nearby road, we can survey it. If you’re just outside Old Knebworth, we cover Nup End Green (1 mile south-west), Driver's End (1 mile south-west), Rableyheath (1 mile south), Pottersheath (1 mile south) and Langley (2 miles north-west). We also work in nearby towns such as Hemel Hempstead (13 miles south-west), Stevenage (3 miles north-east), St Albans (10 miles south-west), Welwyn Garden City (5 miles south), Harpenden (7 miles south-west) and Hitchin (6 miles north-west).
Local landmarks in Old Knebworth
Locally, jobs take us to homes and businesses close to Knebworth Park and Robin Hood And Little John Public House. Old Knebworth’s nearest station is Knebworth station, about 1 mile east. Nearby you will also find Lister Hospital (3.7 miles north) and Stevenage Museum (2.2 miles north). For a walk, there’s Mardley Heath.
Flat roof survey in Old Knebworth: what you get
We inspect a flat roof from wherever it can safely be seen: from the roof itself where that’s safe, from windows and nearby vantage points, and from inside where there’s access. We do not walk on fragile rooflights or fragile roof sheeting. Where any area cannot be viewed safely, we say so in the report, so the limits of the survey are clear. Common reasons to book are standing water left after rain and leaks around rooflights, on single-ply membranes, mastic asphalt and EPDM rubber.
Older buildings in small places like Old Knebworth may be listed or in a conservation area, which can shape what a new flat roof may look like. If you’re planning work, check with the council first. Knowing the roof’s condition is the starting point. Listed building consent is needed for changes that affect a listed building’s special interest.
Most points in the report come with a picture, so you can see each defect rather than just read about it. Anything out of sight on the day is listed as such.
- Place
- Old Knebworth (SG3)
- Region
- Hertfordshire
- Price
- From £150 inc. VAT
- Your report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
What we’re asked to look at in Old Knebworth
Flat roofs frequently get walked on for other jobs: cleaning windows, fitting aerials or air conditioning, or clearing gutters. Each visit can damage a covering not made for regular foot traffic. Fixings added through the covering frequently start leaks too.
People usually book a survey after spotting one of these:
- Cracked or split membrane
- Loose or cracked edge trims
- Upstands pulling away from walls
- Failed seals around rooflight kerbs
The streets around a church such as Church of St Mary and St Thomas are often among the oldest in a place, and if your home is one of the older ones nearby, flat-roofed rear additions and dormers added over the years are worth checking.
What to check before booking
- Their insurance cover
- Whether VAT is added on top
- How they plan to inspect the roof safely
- What the survey will not cover
What we look for on each type of roof
Single-ply membranes
Plant, fixings and foot traffic can all damage a single-ply roof. We note any punctures, tears and loose areas we can see.
EPDM rubber
Rubber roofs can shrink back from their edges or lift where the adhesive has failed. Any we find are noted and photographed.
Before and after the survey
A little preparation and a few simple habits help. Some pointers:
- Check from a window for ponding after heavy rain
- Plan a survey before the covering reaches the end of its usual life
- Treat rooflights and old sheeting as fragile
- Ask contractors to protect the roof if they work on it
Many people send the report to two or three roofers for quotes. Because everyone is pricing the same findings, the quotes are easier to compare. You stay in control of who does the work and when.
Book a survey every few years, and again after new fixings, units or rooflights go in. You will spot changes early and have a record to look back on.
How we price flat roof surveys
Survey packages start from £150, with VAT included. The price for your roof depends on:
- Basic, Standard or Premium
- The size of the roof
- The number of roofs, including extensions and garages
- The shape of the roof and its details
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. Prices start from £150, including VAT.
Booking your survey
Here’s what helps us most when you get in touch:
- Pictures from the garden or a window, if you have them
- How the loft is reached, if there is one
- What kind of property and roof it is
- The property’s address and postcode
Our price is from £150, including VAT. The exact figure depends on the roof and the package, so ring 07833 053749 or email us with the details.
Surveys for landlords and agents in Old Knebworth
For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. The report sets out what needs attention now and what can wait, which helps when budgeting.
Buyers’ agents can book surveys on behalf of their clients. Reports are emailed, so they’re easy to pass on, photographs included.
Old Knebworth questions
How do I find out if my home in Old Knebworth is listed?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
Will you come out to Old Knebworth?
We do. A small place gets exactly the same survey as a big one.
How many surveys have you done?
More than 5,000 surveys over 20+ years.
Can you give me structural calculations?
No. Our survey isn’t a structural engineer’s report. If we see signs that need an engineer’s opinion, we’ll recommend one.
Will I get photos?
Yes, every report has them. Pictures sit next to the findings they show.
Can you inspect my roof with a drone?
Where it helps and the rules allow, yes. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and the airspace and weather are checked before every flight.
Can you survey any kind of flat roof?
We cover the main flat roof coverings: felt, asphalt, EPDM, GRP and single-ply. We record what the covering is and how it’s holding up.
Places near Old Knebworth
Other services in Old Knebworth
What we do, step by step
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes between one and two hours for a small flat roof at home, and longer for a large commercial one. If you have questions on the day, just ask. Somewhere as small as Old Knebworth, access is frequently the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Visits can be on weekdays, Saturdays or Sundays.
- First you give us the address, what the roof covers and any leaks you’ve noticed.
- We look at the roof from wherever it can safely be seen.
- The covering, falls, upstands, outlets, edge trims and rooflights are checked and photographed.
- We check the rooms or spaces under the roof for staining where we can reach them.
- You get a written report with photographs and our recommendations.
Preparing for the visit
- Find any records of previous roof work
- Tell us about any leaks, stains or damp patches you know of
- Jot down any questions you want answered
Book a survey
For a price for flat roof surveys in Old Knebworth, phone 07833 053749 or drop us an email. The address, the type of property and what you want to find out help us price the survey accurately.