Hertfordshire · London and the South East
Gutter Survey in Knebworth
Gutter surveys in Knebworth and the rest of Hertfordshire. Surveys run on weekdays, Saturdays and Sundays.
- Choked outlets or hopper heads
- Brackets that have dropped or snapped
- Gutters full of debris and silt
About our gutter survey in Knebworth
Damp patches on inside walls, stains below a valley or water running down the brickwork can often be traced to the gutters. Our gutter survey helps show whether the rainwater system is the cause, as far as can be seen safely. If the evidence points elsewhere, such as a flashing or the roof covering, we’ll say so. The next step is suggested too. Common reasons to book are gutters overflowing in heavy rain and gutters that have fallen out of line, on fascias and soffits, downpipes and eaves gutters.
Around Knebworth, older cottages sit alongside bungalows and newer houses. Older roofs can have slate, clay tiles or other traditional coverings, while many later ones have concrete tiles. Chimneys, valleys and gutters on older homes frequently need the most attention. The fixings under an older roof often fail before good slates or tiles do.
Pictures do a lot of the work in our reports, because a photo of a cracked flashing says more than a paragraph. Anything out of sight on the day is listed as such.
- Where
- Knebworth (SG3)
- Region
- Hertfordshire
- Price
- From £150 inc. VAT
- Report
- Written, with photos, emailed to you
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
What happens on the day
We work from the outside in: first the slopes, edges and gutters from every safe viewpoint, then the roof space where it can be reached. In total, it takes roughly 1–2 hours at a house, depending on how many gutter runs and downpipes there are. With a bit of garden around a house, as there frequently is around Knebworth, the roof can be viewed from several angles. Let us know if any side is fenced off or hard to reach. The loft, where there’s safe access, completes the picture.
- First, you let us know what you’ve seen, such as overflows or damp.
- Gutters, downpipes, fascias and soffits are inspected from safe vantage points.
- Valley, parapet and box gutters are inspected as far as they can be seen safely.
- We look in the roof space, where there is safe access, for signs of water getting in.
- We send a written report with photos and clear recommendations.
Before we arrive
- Keep pets inside or away from the areas we are looking at
- Make sure we can get to the back of the property
- Show us where any leaks or stains appear
Booking a survey
Not sure which survey you need? It’s easiest to phone 07833 053749 or email us and describe the roof and why you want it surveyed. We will explain the options and the price.
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Landlord and commercial surveys in Knebworth
If the property is let, the agent or a tenant can let us in. We survey on any day of the week, which helps when tenants work during the week.
Landlords, agents and building managers in Knebworth and across Hertfordshire can book any of our surveys. To discuss a property or a block, ring 07833 053749 or use the contact form.
Roof by roof
Lead-lined valley and parapet gutters
Lead linings are common in valleys and parapet gutters on older houses. Splits and failed joints in the lead can let water straight in.
Box and secret gutters
Secret gutters are hidden under the edge of the roof covering, so they’re easy to forget. We look at what’s visible and note what is not.
Local roofs in Knebworth
The wider area around Knebworth has a long history of building, with Knebworth House about 1.3 miles north-west. Older homes in the wider area frequently have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and a listed home or one in a conservation area may need consent for changes of material. In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile, and flat-roofed additions turn up almost everywhere. Each of these coverings has its own weak points, from fixings and valleys to flashings, chimneys and gutters.
Take a building like Knebworth Primary and Nursery School: its roofs, gutters and any chimneys need the same checks as a house’s, just on a bigger scale. The streets around a church such as Church of St Martin are often among the oldest in a place, and if your house is among the older ones nearby, corroded nails, tired lead and weathered chimney pointing are the things to watch on older roofs.
Knebworth is about 3 miles south of Stevenage, in Hertfordshire. Roofs in Knebworth get the same thorough look as anywhere else in Hertfordshire. Across Hertfordshire, we cover Knebworth and the places around it. There is also a page for London.
Postcode districts we cover here for gutter surveys: SG3. Local streets include London Road, Deanscroft and Lytton Fields. Other places close to Knebworth include 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). Within a short drive, 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
Locally, jobs take us to homes and businesses close to Barnwell School and Knebworth Park and the streets around them. Knebworth has its own railway station: Knebworth station. Other landmarks nearby include Benington Castle (3.6 miles north-east) and Datchworth Museum (1.7 miles south-east). The countryside around Knebworth includes Mardley Heath.
Common questions in Knebworth
Is my home in Knebworth listed or in a conservation area?
The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it is worth checking before planning any.
Do you survey roofs for landlords with property near Knebworth station?
Yes, landlords and agents are among the people we work for. Just ring 07833 053749 or send us an email with the details.
How much is a gutter survey?
The Basic Survey starts from £150, the Standard from £250 and the Premium from £400, all with VAT included. For a price for your building, ring 07833 053749 or drop us an email.
Do you work in Knebworth?
Yes. Our area covers London and South East England, Knebworth included.
Do you survey underground drains?
No. We look at above-ground rainwater only, from the gutters to the bottom of the downpipes. If a drain below ground looks like the cause, the report says so.
Will you photograph what you find?
Yes. Photos are taken throughout the survey, and they go into the written report.
Are hidden gutters like valleys and box gutters included?
Yes, where it’s safe to see them. We use the ground, windows, the loft space and the roof where it’s safe, and by drone where it is applicable.
What we are asked to look at in Knebworth
Valley, parapet and box gutters are often lined with lead or a sheet material. When a lining splits or an outlet blocks, the water can come inside, because there is no outer edge for it to spill over. Lead is also a target for theft.
Signs worth acting on include:
- Gutters that have fallen out of line
- Hoppers and outlets full of debris
- Water backing up from a hidden gutter
- Leaks at the gutter joints
If you own a rental within reach of Knebworth station, a dated record of the roof is useful when planning maintenance across a let.
Choosing a roof surveyor
- Which limits apply to the survey
- Whether they hold professional indemnity and public liability insurance
- Their track record with similar roofs
- Is VAT included in the price?
How we price gutter surveys
Prices always include VAT. The things that change the price are:
- The shape of the roof and its details
- The type of building, from a house to a block or an office
- Building height and the viewpoints available
- Basic, Standard or Premium
The Premium Survey includes thermal imaging and drone inspection where applicable, from £400 with VAT included. We’ll tell you which package suits the questions you have.
Helping us price your survey
To price your survey accurately, we will ask about:
- Any stains, drips or damp patches you’ve seen indoors
- Pictures of the roof from a safe spot, if you have them
- When you need the report by
- The property’s address and postcode
If you are buying, it is useful to book soon after your offer is accepted, so there’s time to use the report before exchange. For any other survey, just ring 07833 053749 or email us when you are ready.
Also near Knebworth
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What a gutter survey does not cover
Without opening up the roof, some things stay hidden, and that sets some limits:
- Blockages deep inside downpipes
- Hidden sections we cannot view safely
- What’s behind fascias and inside walls
If you’re not sure which survey you need, call 07833 053749 or send us an email and we will give you a straight answer. The full list of what we check.
Roof types and parts we check
- Eaves gutters
- Parapet and box gutters
- Fascias and soffits
- Valley gutters
- Outlets and hoppers
- Downpipes