Hertfordshire · London and the South East
Flat roof survey in Westmill, Hertfordshire
A careful look at the flat roof at your property in Westmill, and put it all in a written report with photos.
- Gaps at upstands and abutments
- A sagging deck under the covering
- Standing water left after rain
Flat roof survey in Westmill
If the house you’re buying has a flat roof on an extension, dormer or garage, it is worth knowing its condition before exchange. Many felt roofs need renewing after around 15 to 20 years, and EPDM and GRP often go on for longer. We set out the type of covering, its condition and the defects we found, with a photo of every defect. You then have something specific to put to the seller or agent. We survey mastic asphalt, GRP fibreglass and felt flat roofs, and people most frequently book us about splits, cracks and crazing and blistering in felt or asphalt.
In a village or hamlet like Westmill, flat roofs are usually on extensions, garages, outbuildings or barn conversions. The checks are the same as anywhere: outlets, upstands, edges and the covering itself. We simply plan the journey and access beforehand. Garages and outbuildings are easy to forget, so mention any you want included as you book.
You receive the findings by email, easy to pass on to a roofer, an agent or an insurer. Turnaround is within 48 hours for Basic, 24–48 hours for Standard and same day for Premium.
- Where
- Westmill (SG9)
- Region
- Hertfordshire
- Cost
- From £150 inc. VAT
- Reports
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Questions from Westmill
Is my home in Westmill listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. Either can affect what roof work is allowed, so it is worth checking before planning any.
Do you carry out roof surveys in Westmill?
Yes, Westmill is one of the places we work. Every survey there gets the same written report with photographs, and visits run on weekdays and weekends.
How much does a flat roof survey cost in Westmill?
Prices start from £150, including VAT. You will know the price for your roof before booking, and it depends on the roof’s size, access and the package you choose. To get a price, call 07833 053749 or send us an email.
Will you check the loft?
If it is needed and safe to reach, yes. We look for staining, damp, daylight and signs of movement, as far as the space allows.
Is it a structural engineer’s report?
No. Visible signs such as deflection or sagging are recorded, but we don’t provide calculations or an engineer’s opinion. If one is needed, the report says so.
How do I book a survey in Westmill?
Just phone 07833 053749 or send us an email with the address. We will ask a few questions, confirm the price and agree a date, weekday or weekend.
How long is the visit?
It usually takes an hour or two at a typical home, and longer for a large or complex roof. You’ll then get the report by email, on the timescale of your package.
The survey, step by step
The aim of the visit is simple: to see as much of the flat roof as can be seen safely and record it clearly. Notes and photos go into the written report. It typically takes roughly 1–2 hours for an extension, garage or dormer roof, and around 3–4 hours for a commercial flat roof. Around Westmill, older homes can have small or awkward roof spaces, so it helps to know whether there’s a loft hatch and how easy it is to reach. We only go where it is safe.
- We agree the roof to be surveyed, its use and any leaks you know about.
- We look at the roof from ground level, windows and the roof where it is safe.
- We check the covering for splits, blisters, ponding and wear.
- Upstands, outlets, edge trims and rooflights are checked and photographed.
- A written report with photos and recommendations is emailed to you.
How to prepare
- Let us know about parking near the property
- If you are buying, let the agent know when we are coming
- Agree roof access with the managing agent if it is shared
Booking a survey
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. Otherwise, simply ring 07833 053749 or email us whenever suits you.
Related advice
When to book a survey in Westmill
Flat roofs often get walked on for other jobs: to clean windows, fit aerials or air conditioning units, or reach a gutter. Each visit can damage a covering not made for regular foot traffic. New brackets and fixings through the roof are another common source of leaks.
It’s worth booking a survey if you’ve seen:
- Failed upstands where the roof meets a wall
- Leaks around rooflights
- Damaged trims at the roof edge
- Blocked or damaged outlets
If you live in an older home near Parish Church of St Mary the Virgin, flat-roofed rear additions and dormers added over the years are worth checking.
Questions to ask before booking
- How they plan to inspect the roof safely
- What the survey will not cover
- What follow-up you get after the report
- How long the report takes to arrive
Flat roof surveys in Westmill: local notes
Before planning roof work on an older home, find out whether it is listed or in a conservation area. Listed building consent covers changes to a listed building’s special interest, and an Article 4 direction can bring extra controls in a conservation area. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates, 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 like Freman College, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Westmill is about 7 miles east of Stevenage, in Hertfordshire. We visit Westmill as part of our work across Hertfordshire. Our area takes in places right across Hertfordshire, large and small. Chelmsford is in our area too.
Surveys in SG9 work the same way as everywhere else we cover. Other places close to Westmill include Aspenden (1 mile north), Buntingford (1 mile north), Hay Street (2 miles east), Layston (2 miles north) and Braughing (2 miles south-east). Within a short drive, we also cover Stevenage (7 miles west), Bishop's Stortford (8 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (11 miles west), Hoddesdon (12 miles south) and Cheshunt (15 miles south).
Around Westmill
Around Westmill, our work takes us to homes and buildings near The Sword In Hand Public House. Other landmarks nearby include Brent Pelham (4.5 miles north-east).
Towns and villages near Westmill
Other services in Westmill
What affects the price in Westmill
Not every roof costs the same to survey, and it comes down to:
- How tall the building is and how easy the roof is to see
- Whether thermal imaging or a drone is needed
- Whether it is a home or a commercial building
- Extensions, dormers and garages with roofs of their own
One thing that affects the price is the package: from £150 for Basic, £250 for Standard and £400 for Premium, including VAT. The roof’s size, height and access matter as well.
What to let us know when you contact us
Here’s what helps us most when you contact us:
- Any photos you have, taken from the ground or a window
- Dates you are working to, such as exchange
- The style of property, from a terrace to a block
- Your postcode, so we can check access and travel
Flat roof survey starts from £150, including VAT. The exact figure depends on the roof and the package, and you can call 07833 053749 or use the contact form to find out.
Why get it checked now?
By the time a flat roof leak shows indoors, water has already passed through the roof build-up. A survey can find worn areas and failing details before that point, so you can plan the work rather than react to it. In a small place like Westmill, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Prices start from £150, including VAT. The final price depends on the size and height of the roof, access and which survey you book.
Why choose Independent Roof Survey in Westmill
- 98% of clients satisfied
- 5,000+ surveys completed
- Covered by professional indemnity and public liability insurance
- A written report with photos
Should I look at the roof myself first?
During heavy rain, look at the gutters from ground level or a window. Overflowing water can be a sign of a blockage or a gutter that has dropped.
Inside, the loft is a good place to look, with care. Take a torch and only step on boards or joists, and look for staining, damp timber or daylight coming through.
Roof by roof
Rooflights and upstands
Upstands at walls and parapets need to stay watertight as the building moves. We look for splits, gaps and failed flashings over the top.
Felt and built-up roofs
Felt roofs often last around 15 to 20 years, depending on how they were laid and looked after. Our report sets out its condition and the areas most at risk.