Flat Roof Replacement Cost in Birmingham

Residential areas of Birmingham have plenty of houses with garages and home extensions. And, because it’s the UK, there’s plenty of wind and rain.

Most garages and house extensions have flat roofs, as do front porches and bay windows, and this is because they are practical and cost-effective.

If you’re wondering about the cost of replacing a flat roof in Birmingham, then read this guide because we tell you what you need to know about the cost of labour and materials, any additional costs you may need to add to your budget and how to find flat roof installers easily.

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The Average Cost of Flat Roof Replacement in Birmingham

In Birmingham, the average rate is between £275 and £355 and installing a roof will normally take 2 professionals to complete the job.

The hourly rate for a roofer in Birmingham is about £32 to £44.

Cost of Materials and Labour

Here are some average costs of a flat roof replacement that include materials and labour:

• Double garage (30m²): Between £780 and £1,350
• Extension Roof (40m²): Between £860 and £1,475
• Front Porch (3m²): Between £295 and £655
• Lead roof on bay window (3m²): Between £575 and £955
• Flat roof on modern home (80m²): Between £2,275 and £3,240

If you are looking for a flat roof replacement on a budget, then a felt roof is your cheapest option at between £50 and £80 per m².

Owners of bay windows often choose lead because of its durability, but this is the most expensive option at around £200 per m². Other types of material, such as fibreglass, rubber and a green roof, will cost you between £50 and £150 per m².

Prices for materials only are:

• Double garage (30m²): Between £170 and £440
• Extension Roof (45m²): Between £255 and £560
• Front Porch (3m²): Between £20 and £300
• Lead roof on a bay window (3m²): £600
• Flat Roof on modern home (80m²): Between £450 and £1,108

Labour costs at Birmingham rates:

• Double garage (30m²): 2 to 3 days will cost between £608 and £912
• Extension Roof (40m²): 2 to 3 days will cost between £608 and £912
• Front Porch (3m²): 1 day will cost between £275 and £355
• Lead roof on a bay window: 1 day will cost between £275 and £355
• Flat Roof on modern home (80m²: 6 to 7 days will cost between £1,824 and £2,128

Factors Affecting the Cost of Replacing a Flat Roof in Birmingham

There are several factors that will affect the total cost of replacing a flat roof in Birmingham, and they include:

• The size of the roof – Materials are sold by square metre (m²). Prices range from £50 to £200 per m²
• The type of material: Whether you choose a cost-effective felt or the more expensive fibreglass, or something in between.
• Labour rates in Birmingham. Per day, the rate is between £275 and £355 for installing a roof. The hourly rate for a roofer in Birmingham is about £32 to £44.
• Complexity of the installation: Is access easy, or is scaffolding required? The cost of scaffolding on average is between £800 and £1,000 per week.
• Condition of the old roof: Does it need removal and disposal? Skip hire costs on average £220.
• Insulation to comply with building regulations

Condition of the Old Roof

If your old roof isn’t sagging, leaking or pooling water, then you may be able to install a new flat roof on top of the old one. A roof in poor condition, though it may have to be removed, and this should be included in the quote from the roofer. What might not be included is disposal. Skip hire will add around £220 to your overall costs.

Insulation to Comply with Building Regulations

Although laying a new flat roof doesn’t need planning permission (unless you live in a listed building or in a conservation area), there will be conditions under building regulations which your roofing contractor should adhere to.

Insulation is sometimes required on new or replacement flat roofs unless it covers an unheated building like a detached garage.

The location of the insulation depends on whether you choose to have a cold or a warm flat roof.

Insulation is placed between the rafters in a cold flat roof, which is less expensive to install, but it must also have adequate ventilation to prevent moisture build-up and condensation.

The insulation in a warm flat roof is placed beneath the waterproof layer on the outside of the roof. It doesn’t need ventilation, and less heat is lost to the outside, so it is more energy efficient.

Costs by Flat Roof Material

This table gives you an at-a-glance comparison of the cost of the materials for a flat roof per m².

Birmingham Flat Roof Prices

Additional Costs to Consider

When you are working out a budget for your roof replacement, remember to add on any additional costs.

These could include:

• Roof Insulation – Materials between £7 and £15 per m²
• Scaffolding hire – Between £800 and £1,000 per week
• Waste removal/Skip hire – Around £220
• Roof windows/Skylights - Between £755 and £3,470
• Emergency work/Same day callouts - £100 to £300

How Long Does a Flat Roof Replacement Take?

On average, most jobs will take a professional Birmingham roofer around 2 to 3 days to complete. Delays are usually caused by bad weather. Larger jobs that need scaffolding or are difficult to access may take longer. Materials also need time to dry or cure.

Flat Roof Lifespan and When to Replace

If a roof has a lot of water pooling on its surface, or large cracks or tears in the material, then the roof will probably need replacing. If you have minor damage that isn’t causing too many problems, then it may just need a repair.

Typical Lifespans for flat roofs are:

• Felt: 10 -30 years
• EPDM: 25 -30 years
• Fibreglass (GRP): 20 – 30 years
• Lead: 100 years plus
• Green Roofing: 30 – 50 years

Finding a Roof Specialist in Birmingham

Consider replacing your flat roof before problems get more serious and water penetration ends up ruining valued possessions or expensive items of furniture.

The easiest way to find flat roofers in Birmingham is to use MyJobQuote. Post your job description on our website, and you’ll be matched with roofers in your local area.

Get at least 3 quotes and compare each one to find the one that suits you best. Using an experienced roofer means you don’t have to worry about building regulations or getting the work done to a professional standard.