Check who can authorise work and use the appropriate landlord, utility, council or emergency route when needed. This enquiry form is not an emergency dispatch service. Local reporting contacts are below; this enquiry service does not provide emergency dispatch.
What makes a flat roof work
A flat roof needs more than a waterproof surface: its structure, falls, outlets, upstands and junctions must work together. Many apparently flat roofs have a designed fall to move water toward an outlet. Ask an inspector to look at the whole arrangement rather than choose a covering by appearance alone. A wet ceiling beneath an extension could involve an outlet, a junction or concealed damage. Establish what the proposed job includes and whether a repair can address the defect without replacing an otherwise serviceable roof.
Felt, rubber and other systems
Bituminous membranes, EPDM and other proprietary systems have different installation and detailing requirements. No material is automatically best for every extension, garage or balcony. The roof’s shape, substrate, access, intended use and adjoining features matter. Ask which complete system is proposed, who will install it and what preparation it requires. A product guarantee is not the same as a guarantee for workmanship or the existing structure. Compare full specifications, including outlets and edges, rather than treating the surface material as the entire job.
Ask how the chosen system will meet a wall, rooflight or parapet, and how its edges and outlets will be formed. The answer should refer to the installation requirements of the actual product. If an installer proposes applying a new surface over an old roof, ask what condition checks establish that the underlying layers are suitable and whether trapped moisture or added load has been considered.
Ponding and blocked outlets
Standing water deserves investigation of the fall and outlet arrangement. Its significance depends on the system and condition; one photograph does not establish the required remedy. Keep accessible ground-level drainage routes clear where safe, but do not step onto the roof to sweep water away. Report when pooling occurs and how long it lasts. A membrane repair will not correct a badly designed drainage route on its own. If water cannot discharge, ask how that underlying issue will be addressed in the quotation.
Useful next steps
Repairing a local defect
A compatible patch may be suitable for a specific defect where the surrounding roof remains sound. The contractor needs to establish material compatibility, substrate condition and the position of adjoining details. Repeated patches can be a sign that the diagnosis or scope needs revisiting. Ask whether the work is temporary protection or a permanent repair and what evidence supports the choice. Concealed moisture or damaged decking may not be apparent until an area is opened; agree how additional work will be authorised.
Useful next steps
Insulation, moisture and the full roof build-up
Choose a flat-roof system with its substrate, falls, drainage, insulation and ventilation considered together. Ask how moisture inside the roof will be assessed and how junctions, upstands and outlets will be detailed. A new waterproof layer over a wet or unsound deck can leave an unresolved problem underneath.
At a traditional Braintree property, do not assume modern impermeable details suit every retained part of the building. Ask for the existing structure and internal finishes to be identified, with design and building-control checks where relevant. A business should explain repair versus renewal and give a written scope for the complete build-up, not merely name a surface product.
Sources: Historic repair materials · Check planning permission
Extensions and protected buildings
Before changing a flat roof’s height, edge, appearance or insulation, establish the project’s existing permissions and any planning conditions. Braintree District Council distinguishes planning, building control and protected-property checks. A product warranty is not approval for the work.
For a listed building, ask about the effect on significant fabric and agree the consent route before stripping the roof. A conservation-area address also needs the actual proposal checked; neither status means every repair has the same procedure. Include occupied-property protection, rainwater disposal and safe temporary weathering in the quotation.
Sources: Listed buildings and mapping · Working on listed buildings · Check planning permission
Comparing flat-roof quotations
Ask whether the quote includes…
Ask for the measured area, system name, preparation, deck work, falls, drainage and junction details. Confirm whether insulation, edge trims, waste removal and access are included. The quote should explain how the building stays weather-protected during work and what happens if the existing deck is unsound. Compare exclusions and warranty terms as well as the total. An inexpensive surface-only replacement may have a different scope from one correcting structural or drainage defects; neither price proves suitability without the specification.
- Confirm the inspected defect and the exact work included.
- Check access, disposal, VAT and permission/documentation responsibilities.
- Agree how hidden damage and any extra costs will be approved.
| Item | Question for the contractor |
|---|---|
| Existing deck | Is it inspected, retained or replaced? How will hidden deterioration be priced? |
| Drainage | Are falls, outlets and overflow arrangements included in the design? |
| Insulation | Who specifies moisture control and any required thermal improvements? |
| Warranty | Does it cover the installed system, workmanship or only a particular product? |
Using and maintaining the roof
Do not treat a flat roof as a terrace or storage platform unless it is designed for that use. Loading, punctures and obstructed outlets can cause problems. Ask what routine checks are appropriate and who should undertake work requiring roof access. Keep records of the system, installation date, alterations and repairs so future contractors can identify compatible methods. Report new leaks, blistering or outlet problems promptly. This enquiry service can help describe the job, but it does not provide a remote condition survey or confirm installation dates.