Hertfordshire · London and the South East
Roof Leak Investigation in Holwellbury
Tracing where water is getting into your roof across Holwellbury, with drones and thermal imaging where they help. Call or email for a price.
- Drips from nail tips in a cold loft
- Leaks below a flat extension roof
- A leak that comes and goes with the weather
How a roof leak investigation works in Holwellbury
A leak that comes and goes can be the hardest to pin down. Driving rain from one direction, melting snow or a gutter that overflows in a downpour can all set it off. Telling us when it happens helps a lot, along with any photos you’ve taken. Even on a dry day, a leak typically leaves clues: stained timbers, tide marks and damp underlay. Moisture detection shows which materials are still damp. If you’ve noticed staining where a gutter or parapet meets the wall and brown rings on upstairs ceilings, we can find out what’s behind it, whatever the roof.
For a small place like Holwellbury, the inspection is the same as anywhere: we simply plan the journey and access ahead. It helps to know where the water appears, in what weather, and what you’ve seen outside, along with any repairs done before. If you have photographs of the water coming in, they help as well.
What you get is a clear record of the leaking roof on the day we saw it. It’s useful right away, and a good reference for later, such as when you want to compare after future work.
- Place
- Holwellbury (SG5)
- Wider area
- Hertfordshire
- Prices
- From £150 inc. VAT
- Reports
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
FAQs for Holwellbury
Do you cover Holwellbury?
Yes, Holwellbury is within the area we cover. Our area covers London and the South East. You can phone 07833 053749 or send us an email with the address and some details, and we will talk through which survey suits.
Does a conservation area affect roof work in Holwellbury?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
How do you tell a leak from condensation?
The two can look alike. Widespread damp on the underside of the roof in cold weather, with blocked vents, suggests condensation. We check the pattern, take moisture readings and tell you which is more likely.
Will you definitely find the leak?
Not always, and we’ll be honest about that. Water can travel a long way, and some leaks only show in particular storms. If we cannot be sure, the report ranks the possible sources.
What does the report include?
It works through the roof part by part, in writing and with photos, and ends with what we recommend. Points are put with the most urgent first where relevant.
How experienced are you?
We have completed more than 5,000 surveys, over more than 20 years, and 98% of customers are satisfied.
What’s the best way to book?
Just call 07833 053749 or drop us an email with the address. After a few questions, we confirm the price and fix a day.
Towns and villages near Holwellbury
Also in Holwellbury
How the survey changes by roof type
Lead flashings
Water from a failed flashing can travel down the wall or along a rafter. We check every flashing that could feed the stain.
Flat roof upstands and outlets
On a flat roof, a leak can show some distance from the split. Where conditions allow, moisture readings and thermal imaging help narrow it down.
Leaks and storm damage in Holwellbury
Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles, with flat-roofed extensions, dormers and garages common everywhere. Where water gets in depends a good deal on what the roof is made of and how it’s detailed. If your home is older, it is worth knowing whether it is listed or in a conservation area before planning roof work. Changes that affect a listed building’s special interest need listed building consent, and councils can also use Article 4 directions to control changes in conservation areas.
If you look after a building like Derwent Lower School, on a building that size, finding the source of a drip means looking well beyond the stain. Landlords with a home close to Arlesey station may find that a tenant living with a leak needs the cause found, not just the stain painted over. If you live in an older home near Church of St Peter (C of E) at Corner with Holwell Road, the leak may come from a chimney, a valley or tired lead rather than the covering itself.
Holwellbury is about 3 miles north-west of Letchworth, in Hertfordshire. Anywhere in Holwellbury, we can carry out roof leak investigations at your property. We cover towns and villages across Hertfordshire, large and small. There is also a page for Milton Keynes.
All of SG5 is within our area for roof leak investigations, from the main roads to the quietest streets. We also cover the places around Holwellbury: Ickleford (2 miles south), Westmill (3 miles south), Bearton (3 miles south), Letchworth Garden City (3 miles south-east) and Walsworth (3 miles south-east). Further out, we also cover Stevenage (8 miles south-east), Welwyn Garden City (14 miles south), Harpenden (13 miles south), Hitchin (3 miles south), Stotfold (3 miles north-east) and Baldock (5 miles east).
Around Holwellbury
Locally, jobs take us to homes and businesses close to The Priory School, among other places. The closest station to Holwellbury is Arlesey station, about 2.4 miles north-east of the centre. Well-known places in the area include Fairfield Hospital (2.1 miles east) and Wymondley Castle (4.6 miles south-east). The countryside around Holwellbury includes Arlesey Old Moat and Glebe Meadows and Markham's Hill.
What we do, step by step
We photograph the roof as we go, 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. Most surveys take between one and two hours, more where the leak is intermittent or the roof is large. Somewhere like Holwellbury needs a little journey planning: let us know about narrow lanes, gates, long drives and where we can park. The roof is looked at from ground level, from windows, from the loft where there’s safe access and from the roof where it is safe.
- You pick a Basic, Standard or Premium Survey.
- We agree a date, including weekends.
- The investigation works from the stain back to the roof.
- Moisture detection and thermal imaging are used where your package includes them and they help.
- You get photos, the likely cause and clear recommendations.
How to prepare
- Tell us about any leaks, stains or damp patches you know of
- Buyers: confirm access with the estate agent or seller
- Clear the way to the loft hatch
Book a survey
If you are buying, it’s useful to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. For any other survey, just ring 07833 053749 or send us an email when you are ready.
Read more
Can I check my roof myself?
The one thing to avoid is getting up close. Slates, tiles, flat roofs and rooflights can give way. That is where a survey comes in, using safe viewpoints and a drone where applicable.
A lot can be seen from ground level. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Please do not climb up for a closer look.
When you need someone else
This is not a RICS building survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Water from pipes, tanks or heating systems
- The repair itself (the investigation finds and reports the cause)
- A promise to find every leak on a single visit
If you’re not sure which survey you need, phone 07833 053749 or drop us an email and we’ll give you a straight answer. What a survey covers and does not.
What we check
- The roof space
- Valleys and parapet gutters
- Flat roof details
- Rooflights and dormers
- Chimney stacks
- Lead flashings
- Slate and tile slopes
Landlords, agents and block managers in Holwellbury
Shared roofs need a little more planning: we need access agreed with the building owner or managing agent. Let us know about it as you book and we’ll plan the survey around it.
Freeholders and residents’ companies use a roof report to plan and budget, putting the urgent items at the top.
What affects the price in Holwellbury
Prices vary from roof to roof, and it comes down to:
- The roof’s overall size
- The use of thermal imaging or a drone
- Chimneys, valleys, parapets and other details
- How tall the building is and how easy the roof is to see
One thing that affects the price is the package: Basic from £150, Standard from £250 or Premium from £400, all inc. VAT. Size, height and access can affect the price too.
What to tell us when you get in touch
If you can, have these to hand when you contact us:
- The style of property, from a terrace to a block
- Where any leaks, stains or damp patches show inside
- Any photos you have, taken from ground level or a window
- When you need the report by
Every survey is priced before it is booked, so you know where you stand. Our price is from £150, including VAT. To book, call 07833 053749 or send us an email.