Question 1

How long does an EPDM roof last?

Accepted Answer

A correctly installed premium EPDM membrane has a life expectancy of 20–50 years. Independent testing has shown the membrane material itself lasting in excess of 50 years with no significant degradation.

Question 2

Can EPDM be installed over existing felt?

Accepted Answer

We don't recommend it. The old felt is the weak layer — any movement, blistering or trapped moisture will compromise the new membrane. We always strip back to a sound deck.

Question 3

How much does a new flat roof cost?

Accepted Answer

Pricing depends on size, access, insulation and detailing. A typical garage roof starts from around £1,800 and a large extension warm roof can run to £8,000+. Every quote is itemised and fixed — no surprises.

Question 4

Do you offer guarantees?

Accepted Answer

Yes. All work carries our workmanship guarantee, and premium EPDM systems come with manufacturer material guarantees of up to 20 years.

Question 5

How long does installation take?

Accepted Answer

Most garage roofs are completed in 1–2 days. Extensions typically take 2–5 days depending on size and detailing.

Question 6

Can you replace garage roofs?

Accepted Answer

Yes — garage roof replacement is one of our most common jobs. We handle stripping, deck repairs, new EPDM installation and disposal.

Question 7

Do you install garden room roofs?

Accepted Answer

Yes. We work with garden room manufacturers and self-builders across Hertfordshire and North London.

Question 8

What is better than felt roofing?

Accepted Answer

EPDM rubber. It's a seamless single-piece membrane with a far longer lifespan, better appearance, and minimal maintenance.

Common questions.

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