Hertfordshire · London and the South East
Flat roof survey in Preston, Hertfordshire
Surveys of flat roofs on homes, extensions and commercial buildings in Preston, using drones and thermal imaging where it applies. Get in touch for a price.
- A sagging deck under the covering
- Upstands pulling away from walls
- Blistering in felt or asphalt
How a flat roof survey works in Preston
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 is access. Fragile rooflights and fragile sheets are never walked on. If part of the roof cannot be seen or reached safely, the report says so, so the limits of the survey are clear. We survey felt flat roofs, mastic asphalt and upstands and outlets, and people most often book us about damaged trims at the roof edge and upstands pulling away from walls.
Some older homes in villages like Preston are listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. If you’re planning work, check with the council first. Finding out what state the roof is in gives you the facts to plan with. Listed building consent is needed for changes that affect a listed building’s special interest.
The report works through the roof section by section, from the main slopes down to the gutters and outlets, each with a short note and a photograph. You will see the good as well as the bad.
- Location
- Preston (SG4)
- Wider area
- Hertfordshire
- Prices
- From £150 inc. VAT
- Report
- A written report with photos, by email
- When we survey
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Flat and commercial roofs around Preston
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. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. With Knebworth House about 3.9 miles south-east, Preston sits in an area with a long building history. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years.
Take a building like Preston Primary School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you own a rental within reach of Hitchin station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.
Preston is about 3 miles south of Hitchin, in Hertfordshire. Preston is part of the area we cover across London and South East England. Preston is one of the places in Hertfordshire we cover for flat roof surveys. For surveys nearby, see our Milton Keynes page.
We work across the SG4 postcode area for flat roof surveys. We cover properties on The Green, Church Lane and School Lane. We also cover the places around Preston: Temple Dinsley (1 mile east), Poynders End (1 mile east), Langley End (1 mile south-east), Little Almshoe (1 mile north-east) and St Ibbs (1 mile north-east). Within a short drive, we also cover Hemel Hempstead (13 miles south-west), Stevenage (4 miles east), St Albans (11 miles south), Welwyn Garden City (9 miles south-east), Harpenden (7 miles south-west) and Hitchin (3 miles north).
Landmarks near Preston
In Preston, that means homes and buildings near The Red Lion Public House. The closest station to Preston is Hitchin station, about 3.2 miles north. Other landmarks nearby include North Hertfordshire Museum (2.8 miles north) and Lister Hospital (3.3 miles east). The countryside around Preston includes Purwell Ninesprings and Markham's Hill.
Towns and villages near Preston
More services for Preston
Can I check my roof myself?
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date.
Your own check is a good start, but it isn’t a survey. You won’t see flashings, valleys or the backs of chimneys properly from the ground.
What affects the price in Preston
Not every roof costs the same to survey, and it comes down to:
- The number of roofs, including extensions and garages
- Commercial roofs and larger buildings
- Whether you choose the Basic, Standard or Premium Survey
- Features like valleys, chimneys, dormers and parapets
Simple, low roofs take less time to survey than tall or complicated ones, and the package matters as well. The price is always agreed first.
What to tell us when you get in touch
We will usually ask about:
- Any deadline, like an exchange date
- The property’s address and postcode
- Whether there is a loft hatch, a shared roof or tricky access
- What kind of property and roof it is
When you are ready to go ahead, ring 07833 053749 or use the contact form. We will suggest a package, agree the price and find a date, weekday or weekend.
Common roof problems in Preston
A flat roof lies open to sun, rain and frost, and water drains off it slowly. In time, the covering dries out, cracks and loosens at its edges and laps. Most people book a survey after a leak, before buying, or when they think the roof is getting old.
These are some of the problems a survey can pick up:
- Loose or cracked edge trims
- Outlets choked with leaves and silt
- Gaps at upstands and abutments
- Signs of deflection in the roof deck
If you live in an older home near Church of St Martin, later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear.
Questions to ask before you book
- Whether you get a written report with photos
- Which viewpoints they use to see the roof
- Whether they hold professional indemnity and public liability insurance
- What happens after the report arrives
What we do, step by step
Expect us to ask a few questions before we start, about the roof’s history, any leaks and past repairs. Then the inspection itself takes about one to two hours at most homes, or half a day or so for a commercial building. Somewhere like Preston needs a little journey planning: let us know about lanes, gates and parking. The roof is looked at from the ground, from windows, from the loft where there is safe access and from the roof where it’s safe.
- We agree the roof to be surveyed, its use and any leaks you know about.
- The roof is viewed from safe positions, including the roof itself where that’s safe.
- The covering is checked for wear, splits, blisters and standing water.
- Upstands, outlets, edge trims and rooflights are checked and photographed.
- The report, with photos and recommendations, comes to you by email.
Before the survey
- If it is not your property yet, arrange access through the agent
- Have keys ready for side gates, garages or roof access doors
- Leave a clear route to the loft
How to book
If you have photos of the roof, send them over. Pictures from the ground or a window are fine. To send them or to book, phone 07833 053749 or drop us an email.
Read more
Preston questions
Do you carry out roof surveys in Preston?
Yes, Preston is within the area we cover. We survey roofs across London and South East England. You can ring 07833 053749 or send us an email with the address and a few details.
Is Preston within the area you cover?
Yes, Preston is on our map. Villages and rural addresses get the same survey as a town house.
Does the report include photos?
Yes, every report has them. Each finding is shown in a picture where possible.
Is a flat roof survey the same as a building survey?
No. It is a closer look at the flat roof, not a survey of the whole property. It works alongside a RICS home survey, not instead of one, and it isn’t a structural engineer’s report.
Will you check the loft?
Where it’s relevant to the survey and there’s safe access, yes. A clear path to the hatch helps.
Can you survey in bad weather?
Light rain is normally fine; heavy rain and wind are different. Strong wind or a downpour can make access unsafe and ground a drone, and we’d agree another day.
Will the survey show why my flat roof is leaking?
The survey covers the covering and all the details where leaks typically begin, and photograph anything that could be letting water in. Where the source is not obvious, a roof leak investigation or electronic leak detection may be the next step.
Roof by roof
EPDM rubber
EPDM frequently lasts 30 to 50 years, but it relies on its seams, trims and upstands being well finished. We look closely at each of those details.
Mastic asphalt
Asphalt has no laps, so its weak points are cracks and the skirtings at walls and upstands. Our report notes crazing, cracks and any likely entry points.
Useful tips for Preston property owners
A survey works best with a little help from you, before and after. Tips:
- Have the roof looked at again after a severe storm
- Check from a window for ponding after heavy rain
- Keep people off the roof unless they need to be there
- File the paperwork for the roof and any repairs
If anything in the report isn’t clear, just ask us. The Standard Survey includes a follow-up consultation and the Premium Survey an in-person consultation, giving you a chance to go through what we found.
Keep foot traffic on a flat roof to a minimum. Where someone does need access, ask them to use boards or a protected route, and to keep well clear of rooflights and fragile sheeting.