The Avent roofing guide
Understand a roof problem, compare the proposed work and choose your next step. Practical guidance on repairs, replacements, flat-roof leaks and roofing quotations.
Roof leaking now? Call 020 8485 9967. Emergency calls answered 24/7; attendance is agreed by phone.
Start with your question
The cause may involve the roof covering, junctions or drainage. Water can travel before appearing indoors, so a patch above a stain may miss the entry point. Learn what needs checking and when to discuss a repair or renewal.
Read the flat-roof leak and repair guide →An isolated defect with sound surrounding roofing may suit a repair. Wider deterioration may need renewal, and an unclear cause needs investigation. Ask for the evidence behind the proposed work.
Compare repair and replacement →Check the roof area, preparation, materials, access, exclusions and applicable guarantees. Two prices are only useful to compare when you understand the work each includes.
Use the roofing quotation checklist →A roofing quotation prices proposed work. A paid roof survey records the roof’s condition with photographs, findings and recommendations within an agreed scope. Tell us whether you are buying, dealing with an insurance enquiry or planning repairs.
Explore roof surveys and written reports →A quotation or a report?
For proposed repairs or renewal, request a free roofing quotation. If you need the condition of the roof documented for a purchase, an insurance enquiry or planned works, discuss a separate paid survey. For an insurance report, tell us the insurer’s requirements before agreeing the scope; acceptance is not guaranteed.
Our detailed reports draw on internal and external checks, drone imagery where appropriate and moisture readings. We agree the scope and fee before booking.
See our roof survey service →Advice alongside actual work
These confirmed London jobs show roof repairs, a pitched-roof replacement and balcony renewal. The photographs illustrate Avent’s work; they do not diagnose another property.
Roof repairs, liquid waterproofing and cement works, with care for the character of the building and area.
See Avent’s Highgate roofing work →
A completed tiled-roof replacement from Avent’s North London work, shown in the genuine project photograph.
See Avent’s Finchley roofing work →
Water ingress was affecting office space below. Avent renewed the balcony and added an anti-slip finish.
See the Mayfair balcony project →More liquid waterproofing projects: Golders Green flat roof · Hampstead roof terrace · Leyton residential block.
General guidance cannot diagnose a roof. Tell us what is happening so we can discuss the assessment and work your property needs.
