Flat roofs on extensions, garages and commercial buildings need the right system and proper detailing to perform well. We install and repair felt and EPDM rubber flat roofs across Haverhill and the surrounding villages. If your flat roof is leaking, blistering or nearing the end of its life, call us for a straightforward assessment.
Call any time. Calls are answered day and night and passed straight to our roofers.
Flat roofs are common on extensions, outbuildings, garages and commercial properties. They are practical and cost-effective, but they do need the right installation and the right materials to last. A poorly laid flat roof will pond water, split at seams and let moisture into the structure below, often before the owner realises there is a problem.
The first step is stripping the existing covering back to the deck. The deck itself, usually timber, needs to be checked carefully at this stage. Wet or rotten boards must come out before anything else goes on top, because no surface layer will perform well over a soft or uneven base. We inspect joists too, as decay at deck level often means moisture has been sitting longer than the surface damage suggests.
Once the deck is sound, we install the new system. For most domestic flat roofs we use torch-on felt or EPDM rubber membrane, depending on the size, shape and drainage layout of the roof.
Drainage is critical on any flat roof. A fall of at least 1 in 80 is the minimum recommended to prevent ponding, and outlets need to be positioned so water clears the surface quickly. We check the fall at the survey stage and advise if it needs correcting before the new covering goes down.
Not every flat roof needs a full replacement. If the deck is sound and the damage is limited, a repair is often the right call. Common problems include blistering caused by trapped moisture or poor original bonding, split seams at laps or edges, cracked flashing where the roof meets a parapet or wall, and blockages that cause water to sit and eventually force its way through.
Repairs to small areas of felt can be effective and long-lasting when the underlying cause is dealt with at the same time. A repair that covers the visible damage without fixing the source, whether that is a blocked outlet, a failed flashing or a soft patch of deck, will fail again quickly. We check the full roof surface and drainage before recommending what needs doing.
Garage roofs are a common flat roof job. Many older garages were built with a single-layer mineral felt that was always going to have a limited life. If your garage roof is cracking, lifting at the edges or showing dark wet patches on the ceiling inside, it is worth having it looked at before water gets into the structure or stored contents.
Larger double garages or roofs with additional detailing such as rooflights or multiple drainage outlets will need more work.
Extension flat roofs are built to carry more load than a garage, and they are often directly below a bedroom or living space, which means a leak causes damage quickly. Detailing at the junction between the flat roof and the house wall is where most problems start. Upstand height, flashing overlaps and the way the membrane turns up at abutments all affect how well this junction performs over time.
If you are having a new extension built and want the flat roof done properly, we work alongside builders at the construction stage so the structural elements and the waterproofing are coordinated. Roofing bolted on as an afterthought is more likely to have drainage or flashing problems from day one.
Commercial flat roofs often need careful assessment rather than a like-for-like replacement. We look at the load-bearing capacity of the structure, the number of outlets, any rooftop plant or penetrations, and the access requirements for maintenance before recommending a system. EPDM and torch-on felt both suit commercial applications; the right choice depends on the specifics of the building.
Flat roof costs in Haverhill depend on size, system, deck condition and detailing complexity. A worn deck with multiple rotten boards or a complicated drainage layout will increase the total.
A full survey is the only reliable way to price a flat roof. Call us to arrange one and we will give you a clear, itemised figure before any work starts.
If you are unsure whether your location is covered, call to check.
For a flat roof survey in Haverhill or nearby, call us directly and we will arrange a time to come and assess the roof properly.
No obligation · We'll call you to arrange a free visit
Call any time. Calls are answered day and night and passed straight to our roofers.
A new roof is one of the most important investments you can make in your home. We install pitched and flat roofs across
Active leaks, storm damage, slipped tiles and failed flashings need dealing with before more water gets in. We cover Hav
A full roof replacement gives your home a structurally sound, weathertight covering built to last. We strip back to the
Cracked tiles, failed flashing or a leaking flat roof in Haverhill? Get a clear, honest assessment before any work begin
