Hertfordshire · London and the South East
Pre-purchase roof survey in Welwyn, Hertfordshire
A roof survey before you buy a house or flat around Welwyn, with findings in writing and pictures to back them up. Weekday and weekend visits available.
- Roof slopes that look uneven or sagging
- Standing water on a flat extension roof
- Old water stains in the roof space
Pre-purchase roof survey in Welwyn: what you get
Buying a home is a big commitment, and the roof is one of the costliest parts to put right. Our pre-purchase roof survey gives you a proper look at it before you are committed. We check the coverings, ridges, valleys, flashings, chimneys and gutters, plus the loft where there is safe access. The findings come in a written report with photos. We survey clay and concrete tiles, lead flashings and valleys and gutters and downpipes, and common reasons people get in touch are roof slopes that look uneven or sagging and slates or tiles that have slipped or gone.
Around Welwyn, you will mostly find houses and bungalows of different ages. In older homes, the slates or tiles can outlast the nails, battens and underlay holding them. Whether you are buying or have just had the roof replaced, that hidden layer is worth knowing about. Older roofs often have bitumen felt under the coverings, as breathable membranes only arrived in the late 1990s.
You can share the report with anyone who needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.
- Location
- Welwyn (AL6)
- Region
- Hertfordshire
- Prices
- From £150 inc. VAT
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Surveys for landlords and agents in Welwyn
Roof problems in a rented home affect tenants as well as the building. A survey helps you spot issues early and plan the work.
Where a roof is shared: we need access agreed with the building owner or managing agent. Mention it when you get in touch and we will plan the survey around it.
What happens on the day
Where it’s relevant and can be reached safely, the loft space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement. The whole visit typically takes between one and two hours for a house, and more on a big or complicated roof. With a bit of garden around a house, as there frequently is around Welwyn, the roof can be viewed from several angles. Mention any side of the property we can’t get to. Inside, the loft is checked where it can be reached safely.
- After your offer is agreed, you book and share your timetable.
- Access to the house and the loft space is agreed ahead of time.
- The visit begins outside, from ground level and any safe vantage points.
- We then look from upstairs windows and inside the loft where it is safe.
- The report is emailed with photos and recommendations, ready to use before exchange.
Preparing for the visit
- For flats, make sure roof access has been agreed
- Move anything stored under the loft hatch
- Let us know about parking near the property
Book a survey
To arrange a survey, phone 07833 053749 or drop us an email with the address and what you’d like to know about the roof. We will confirm the price before booking.
Read more
What you can safely check yourself
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it, as it helps a surveyor trace the cause.
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, checking for stains, damp wood or chinks of daylight.
Towns and villages near Welwyn
Other services in Welwyn
FAQs for Welwyn
How do I find out if my home in Welwyn 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.
Do you cover Welwyn?
Yes. We survey roofs across London and South East England, and Welwyn is part of that. Just ring 07833 053749 or send us an email and let us know about the property, and we’ll talk through which survey suits.
Will you need to get into the loft?
If it can be arranged, yes. From the roof space we can see staining, timbers and underlay. If we cannot get in, the report says so.
How quickly will I get the report?
It depends on the package: Basic within 48 hours, Standard within 24 to 48 hours and Premium the same day. Let us know your timetable when booking.
Is your roof survey a RICS survey?
No. We survey the roof, not the whole building, and it is not a RICS Level 2 or Level 3 survey. It works alongside a home survey.
Is this an asbestos survey?
No. We can flag materials that might contain asbestos, but confirming it is a job for a specialist asbestos surveyor. Buildings built or refurbished before 2000 may contain it.
Will you climb onto the roof?
Only where it is safe to do so. Much of the inspection is done from ground level, from windows and from the roof space. On Premium, a drone is used where applicable.
Why get it checked now?
It’s tempting to skip the roof to keep a sale moving. Weekend visits are available as well as weekdays, and the Premium Survey report arrives the same day, which helps it fit around your exchange date. Arranging work in a smaller place like Welwyn is easier with notice than in an emergency. Knowing early gives you time to get the right people in.
The cost of a survey depends on the roof: its size, its height, how many sections it has and how it can be reached and seen safely. Our price is from £150, including VAT.
Why book us in Welwyn
- More than 20 years surveying roofs
- Clear package prices, inc. VAT
- Insured for professional indemnity and public liability
- Plain-English reports with photos
Take a look at our cost guide or what we found on two real jobs.
What a pre-purchase roof survey looks like in Welwyn
If the drone is used for your survey, the flight is checked against the Drone Safety Map first. With Digswell House about 0.9 miles south-east, Welwyn sits in an area with a long building history. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and the council can say whether a home is in a conservation area.
Landlords with a home close to Welwyn North station may find that a written report helps before buying a rental or paying for a new roof on one. For an older house near a landmark like Parish Church of St Mary, the roof’s history matters as much as its looks, and a survey brings the past repairs to light.
Welwyn is about 2 miles north-west of Welwyn Garden City, in Hertfordshire. Houses, flats, blocks and commercial buildings in Welwyn can all book pre-purchase roof surveys. We cover towns and villages across Hertfordshire, from the larger towns to small villages. There is also a page for London.
Surveys in AL6 work the same way as everywhere else we cover. That includes homes and businesses on High Street, London Road and Mimram Place. If you’re just outside Welwyn, we cover Monkswood (1 mile south-east), Ayot St Peter (1 mile south-west), Ayot Green (1 mile south-west), Pottersheath (2 miles north) and Codicote (2 miles north-west). We also work in nearby towns such as Watford (14 miles south-west), Hemel Hempstead (12 miles south-west), Stevenage (6 miles north), St Albans (7 miles south-west), Harpenden (6 miles west) and Hitchin (9 miles north).
What’s near Welwyn
Typical jobs here are in homes near Stable Door pub, Danesbury Park and Homerswood Primary and Nursery School, among other places. Welwyn’s nearest station is Welwyn North station, about 1.1 miles south-east of the centre. A little further out are Queen Elizabeth II Hospital (3.5 miles south) and Datchworth Museum (2.7 miles north-east). Open spaces near Welwyn include Mardley Heath.
What a pre-purchase roof survey does not cover
Before booking, it is worth knowing what a survey won’t do:
- What’s under the slates, tiles or felt
- A valuation or a promise of a lower price
- The condition of the rest of the house (that’s a RICS home survey)
Not sure which survey suits your roof? You can call 07833 053749 or email us and we’ll tell you. What a survey covers and doesn’t.
Roofs we survey in Welwyn
- Chimney stacks
- Gutters and downpipes
- Lead flashings and valleys
- Flat-roofed extensions and dormers
- Natural slate
- Clay and concrete tiles
- The roof space
Useful tips for Welwyn property owners
Some practical points come up on survey after survey. They apply to most roofs:
- Don’t leave it until just before exchange
- Ask the agent to check the loft hatch can be opened
- Ask when the roof was last worked on
- Look for fresh paint on upstairs ceilings at viewings
Once the home is yours, the report becomes a maintenance list. Deal with the urgent items first, and keep the photos to compare against later. Premium comes with a follow-up after 12 months to see how things have changed.
After strong winds, look at the roof from ground level. Slipped slates, lifted ridge tiles and debris on the ground are signs to act on. Dealing with them early keeps water out.