Flat roof Costs

Compare Flat Roof Replacement Prices Near You

Home > Roofing Projects > Flat roof

Flat roof

Flat roof

Flat roofs are horizontal or near horizontal and are otherwise known as low-pitch roofs. A waterproof material is used and water is allowed to run off the roof area at a slight inclination into a gutter system.

Although some flat surfaces won’t have a gutter system attached, they’re highly recommended and will keep the walls and foundations dry.

Benefits of flat roofing

Flat roof benefits are becoming more evident around the country. For those that invest in a flat roof, not only are they a space saver but the economical and efficient structure ensures both energy and money are saved too.

On top of this, flat roofs tend to last longer than the pitched tops and are also cheaper to have installed. They’re also resistant to UV rays and changing weather conditions, whilst they can be combined with almost any material.

With a flat roof:

  • Have a long lasting, weather and UV resistant surface

  • Save money on your energy bills with improved insulation

  • Benefit from a cheaper installation cost

  • Combine the structure with any material

Flat roofing quotes

Flat roofs prove to have a number of benefits for homeowners and commercial properties. If you’re interested in a flat roof for your building you’ve come to the right place.

Just complete our quick form and receive up to four FREE quotes from vetted, local and reputable professionals.

Average Flat roof cost

The common cost of Flat roof is £2500. Costs fluctuate based upon the materials and the firm chosen. The upper price range can be as high as £2875. The material costs are quite often about £625

Average price per Flat roof job in 2021

Avg. price low

Avg. price low
£917

Avg. price

Avg. price
£2,890

Avg. price high

Avg. price high
£4,852

£5000

£3750

£2500

£1250

£0

Prices based on actual Flat roof costs for your area, as reported by local Quotatis members.

Flat roof installation cost in your area 2021

Labour cost £1,750
Material cost £625
Waste removal £125
Time frame: 3-8 days

Advantages for Flat roof

  • Keeps your roof safe from ingress of water
  • Choice of materials for the flat roof. Some materials offer longer warranties
  • Replacement of any damaged wood under the flat roof which could lead to more leaks in the future

Disadvantages for Flat roof

  • More costly than a repair
  • Takes longer than a repair to complete

Flat roof Manufacturers

Flat roof FAQs

I’ve got ponding on my roof. Do I need to replace it?

Ponding is where you see pools of water appearing on your flat roof. Unless your roof is leaking or showing other signs of damage, you don’t need to replace it. When you do have your flat roof replaced, tell the contractor so they can find out the cause of the ponding.

What is overlaying?

If your existing roof is still in good condition but the membrane is getting old, it’s often not worth exposing the structure to the weather whilst the contractor strips off the old membranes. The contractor will leave them in place to act as a base layer for a new roofing system. As long as there are no other problems with your roof, then overlaying is a good way to replace your flat roof.If you have any more questions about flat roofing that aren’t listed here, fill out our form to ask a contractor.

What is the average cost to replace a flat roof?

What Is The Average Cost To Replace A Flat Roof?

Are you interested in knowing how much it costs to replace a flat roof? Here, you’ll discover a price breakdown for replacing flat roof. This includes a number of price determining factors such as materials costs as well as cost of labour and cost per square metre. All these enables you to make easy calculations so that you can determine a flat roof replacement estimate for your own project.

The type of flat roof that is the most common type is the garage roof and for the replacement of a single garage roof, the cost will fall between the range of £700 to £1000. Meanwhile for a double garage, you should expect a price increase of about 40 percent to 50 percent. The main price determinant that’s affecting the price of a new flat roof is the material incorporated in making it. For instance, lead or fibreglass are much more expensive when compared to felt roofs.

Generally, the cost of a flat roof replacement will fall within the range of £700 to £1300 varying largely due to the type of materials to be used by the roofer, the roof’s size as well as whether or not scaffolding would be used. Multiple flat roof applications also comes with different costs which includes:

• Felt roof ( £40 to £60 per square metre).

• Fibreglass roof ( £70to £90 per square metre ).

• Rubber roof ( £80 to £85 per square metre ).

• Lead bay roof ( £90 to £105 per square metre ).

• Fibreglass bay roof ( £40 to £60 per square metre ).

Several professional roofers work in pairs and to hire them you’re likely to be charged between £200 to £300 per day. The project can be completed with just a day’s work, but the installer should be back to make sure there are no leaks.

How to replace a flat roof?

How To Replace A Flat Roof

Is it high time you replaced your flat roof with a new one? If it’s time, then you probably shouldn’t waste another minute! Flat roofs come with multiple upsides and happens to be a lot more affordable than many other options (especially for starters). Not only do they add to your home’s curb appeal and requires a relatively low labour costs as there are minimal risks involved, but they’re also more accessible for maintenance purposes and aren’t as exposed to damage as a pitched roof. However, we’re not here to discuss the various benefits of installing a flat roof, but rather tell you how to install one. If you lack proper training and experience, we’d recommend you hire a trustworthy professional that can guarantee the best results.

• Wipe the entire roof system clean.

• Detach and replace rotted roof sheathings.

• Detach and replace rotted fascia

• Hire a qualified air conditioning professional to disconnect the existing AC units.

• Introduce new aluminium air conditioning stands and secure against the deck.

• Let you qualified air conditioning professional reconnect the existing AC units.

• Put in place the new air conditioning quick disconnects.

• Attach EPS fanfold insulation in such a way to cover the surface of the entire roof and secure it firmly in place.

• Attach the tie-in roof materials where necessary.

• Attach roofing membrane to cover the entire area of the roofing.

• Attach membrane to the entire roof’s perimeter.

• Attach new perimeter flashings (fascia bar, fascia cap and drip edge), secured on the centre at 6. Make use of a good sealant to secure the fascia bar or fascia cap’s top flange.

• Attach boots on plumbing seal and stacks.

• Identify the existing vent stacks and seal, and put curbs

• Put safety walk pad network from the access point of the roof to the air conditioning units.

• Attach rooftop signs for roof traffic personnel

• Tidy up and clear out the debris

How often do flat roofs need replacing?

How Often Do Flat Roofs Need Replacing?

When a flat roof needs to be replaced is determined by a number of factors which includes the roof’s exposure to the weather, the condition and age of the roofing materials as well as the construction of the roof. However, with proper maintenance and regular inspection, they should be used for nothing less than 50 years. There are some commonly used types of flat roofs which includes Felt flat roof as well as a GRP flat roof.

Felt Flat Roof

The lifespan of a felt flat roof also varies depending on the quality and grade of the felt roof incorporated. This can make the roof last within the range of 2 to 20 years. More often than not, felt flat roofs are usually installed in such a way to keep the costs down which implies the grades of felts that are mostly used are the economical ones implying a very short lifespan.

In the event whereby a premium grade of felt is incorporated in constructing a roof by professional contractors, will be guaranteed by the manufacturer to last between 10 to 20 years.

One of the major causes of a short lifespan in felts is leaks which should be regularly inspected and repaired once identified. If not, the roof will gradually deteriorate and become a lot weaker due to the action of the sun. However, when a felt roof starts to leak, it’s usually a sign that’s approaching the end of its lifespan and a replacement should be taken into account.

GRP Flat Roof

The GRP flat roof or fibreglass flat roof usually comes with a manufacturer’s guarantee of 20 years and is expected to have a lifespan of a minimum of an additional 10 years.

Unlike felt roofs, they’re more resistant to leaks. However, they should also be regularly inspected for leaks which are caused mostly as a result of installation error rather than the GRP roofing approaching the end of its useful life. If the GRP roof repair does not totally resolve the leak, you should start considering a replacement.

How long should a flat roof last?

It depends on the material you use, but if your flat roof is installed correctly it should last for at least 10 years, and at least 20 if a material other than felt is used. Always question a roofing company when they quote to find out what materials they use and what guarantee's they offer.

How much is it to replace a garage roof?

How Much Is It To Replace A Garage Roof?

The size of your garage will be the main determinant of the cost of a new garage roof. However, the present condition of your roof structure as well as the type of roof covering preferred are also huge factors. In the UK, the cost of a garage roof replacement will be within the range of £700 to £3600.

The first step a pro will take is to remove the existing roofing while also making sure that the timber structure is in a good condition. In the event whereby the timber is rotten, it will need to be replaced before the installation of a new roof. If the garage roof sheets needs a replacement, you’ll have to spend about £30 to £50 per each garage roof sheets. Individual plywood sheet has around 2.4m x 1.2m in measurement and whose price should also be included in the final cost.

The above information applies only to standard roofing for garage roofs with flat roofs being made of bitumen felt and asphalt. In recent times, this is no longer the case with several more options available. Today, EPDM and GRP fibreglass have rapidly become very popular amongst several homeowners in the country. It’s also important to note that modern roofing has greatly advanced over the years even though both EPDM garage roofs and GRP fibreglass garage roofs are way better and of more quality when compared to felt and asphalt roofs. And thanks to modern technology, modern garage roofing possesses a longer life expectancy and as result, are a lot costlier than the conventional ones.

For a medium size single garage (2.7m x 5.5m), the cost for a felt roof per square metre is between £40 to £70, while that of a fiberglass roof and an EPDM rubber roof is between £90 to £110 and £70 to £100 respectively.

How much is a new flat roof?

How Much Is A New Flat Roof

What is a home without a roof to keep out the elements? Being the first line of defence against intense sun, rain, wind and more, implies they require enough care and attention to keep them in a top condition. Therefore, whether you need a new flat roof or just to replace some tiles, you’d be interested in knowing how much it would cost you to get a new roof before you start making the necessary plans. Here, we’ll give you an idea on the cost of a new flat roof and how you can estimate yours based on your unique requirements.

The size of your roof as well as the material to be used are the two main determinants of any flat roof project’s cost. For instance, a four bedroom detached home’s slate roof will be more expensive than a felted flat roof for a small or standard garage. Generally, in the UK, the average cost for replacing a flat roof will range between £5000 to £6000. However, if you’re on a tight budget and looking for the cheapest possible option, you’ll get a felt flat roof only on a garage at about £1000 to £1500. Meanwhile if you want to replace the entire slate tiles of a large family home, the cost can jump up to a range of £11000 to £13000.

Other factors that plays a key role in the determination of a new flat roof’s cost includes the location, labour as well as materials. For instance, a new flat roof price is likely to be higher in London and the south east than the other regions of the country. Also, labour may cost you around £150 to £250 per worker on a daily basis.

How to remove, repair and install a flat roof

Dartman

Based: in Mexborough, S64

We specialise in home maintenance, roofing and landscaping.
(Driveways, Paths & Patios).
We are a ...

Latest review

Nadine T., S12
5th October 2021

Roofing | Flat | Replacement in Sheffield

Lovely man. Did a very good job. Did the job in a day as promised. Would definitely r...

M J MCMURRAY ROOFING SERVICES

Based: in Pembroke, SA71

M J MCMURRAY ROOFING SERVICES is based in Pembroke and have 22 positive reviews

Latest review

John P., SA61
6th September 2021

Roofing | Flat | Replacement in Haverfordwest

Mr McMurray phoned the next day and looked at the job within the hour. He told us th...

MOSS SHIELD

Based: in Denmead, PO7

Roofing & Guttering Solution Roof , Fascia , Soffit , Moss removal and roof cleaning, flat roof & ...

Latest review

John B., TR20
9th August 2021

Roofing | Flat | Replacement in Penzance

Excellent

MRM roofing & property maintenance

Based: in Bedlington, NE22

Here at MRM roofing we pride ourselves on our reputation with years of experience in the trade we un...

Latest review

Raymond M., NE28
25th July 2021

Roofing | Flat | Replacement in Wallsend

Excellent work done, friendly duo who did the job, took under 3hrs to complete. Thank...

L M Doe Roof Repairs

Based: in Worcester park, KT4

Here at L M Doe Roof Repairs Ltd,
We provide a wide range of roof repairs such as a small gutter le...

Latest review

Clive F., EX1
29th June 2021

Roofing | Flat | Replacement in Exeter

Brilliant, from the first phone contact until they had finished the work. Such a poli...

Cambridgeshire Roofing Solutions

Based: in Cambridge, CB24

All businesses, organisations and homeowners know that a quality roof will provide the best long ter...

Latest review

Barry D., IP31
15th May 2021

Roofing | Flat | Replacement in Bury St. Edmunds

Prompt response and realistic price quoted. Work carried out professionally and witho...

TITAN PROPERTY MAINTENANCE

Based: in Southampton, SO19

NEED A ROOFING SPECIALIST?

Titan Property Maintenance is a well-established roofing company that ...

Latest review

Carolyn M., SP4
14th May 2021

Roofing | Flat | Replacement in Salisbury

Very prompt, ,efficient and helpful

PRESTIGE MIDLANDS

Based: in Wolverhampton, WV1

Prestige Midlands Ltd, based in the heart of Wolverhampton; are suppliers and installers of Fascia, ...

Latest review

Louise D., B36
29th April 2021

Roofing | Flat | Replacement in Solihull

Too in depth, tried for hard sell

Fosseway roofing

Based: in Warwickshire, CV36

We are a family run business with over 25 years’ experience who take pride in our work all work ca...

Latest review

Louise D., B36
29th April 2021

Roofing | Flat | Replacement in Solihull

Great fast quote, quick booking

JUST ROOFING

Based: in Coalville, LE67

Welcome to just roofing I am a professional roofer with 15 years experience in the trade starting i...

Latest review

Louise D., B36
29th April 2021

Roofing | Flat | Replacement in Solihull

Beat to the post by the others with response but friendly phone call received

Rated Local roofers

PRESTIGE MIDLANDS LTD

182 review(s)
Based: in Wolverhampton, WV1 1NA

Prestige Midlands Ltd, based in the heart of Wolverhampton; are suppliers and installers of Fascia, Soffit, Guttering (FSG) and also Flat Roofing products; EPDM rubber and felt. We offer our FSG products; including downpipes in a range of colours ...

New Look Fascias

117 review(s)
Based: in Leeds, LS22 7TW

New look fascias are a local roofing company specialising in all aspects of roofing work and upvc fascias soffits and guttering. We are also specialists in all dry fix roofing products including dry verge and dry ridge. We are a registered grp fiberg...

B Wise

57 review(s)
Based: in Doncaster, DN8 4HT

We are a dedicated team of trained trades men who aim to beat any like for like quote and finish all our work to a very high standard For full customer satisfaction we are your guys

New Look Fascias

117 review(s)
Based: in Doncaster, DN10 4RH

Welcome to New look fascias we are a family business providing professional fascias, soffits and guttering and all aspects of roofing services including new roofs to a slipped slate all new maintaince free dry verge - ridge systems we have offices in...

JTB Home Improvments

72 review(s)
Based: in Nottinghamshire, S80 2NB

Hi my name is John I’m the owner of jtb home improvements we are a family run business and we always strive to provide outstanding results in every job undertaken having been in the building trade for over 7 years. Due to health and safety ...

Dartman Limited

54 review(s)
Based: in Mexborough, S64 8AP

We specialise in home maintenance, roofing and landscaping. (Driveways, Paths & Patios). We are a family run business and have been in the roofing and building industry for years, continuing with new generations upholding the original values of hig...

NORTH EAST ROOFLINES

112 review(s)
Based: in Hartlepool, TS24 0PL

Hello my name is Andrew brougham , have been roofing approximately 20 years as can be shown in our expertise and workmanship . We have several vehicles on our firm to cover all aspects of our business , we also have 3 experienced tradesmen working fo...

CENTIAM HOME IMPROVEMENTS LTD

92 review(s)
Based: in Glasgow, G52 2SZ

Centiam is a business based in the heart of Glasgow servicing the people of Scotland.  Improving your home is simple with Centiam. We provide a bespoke service and we are supported by a network of manufacturers and suppliers working with you to c...

MARK DEAN T/A EVERLAST ROOFING

63 review(s)
Based: in Chessington, KT9 1UE

Everlast Roofing are a trusted, professional family company with over 22 years experience in the trade. We focus on providing all types of roofing repairs and maintenance to the highest finish, and with a quality that is made to last. We are based...

UPGRADE HOME IMPROVEMENTS

60 review(s)
Based: in Sandbach, CW11 1HJ

Very professional very reliable very trustworthy and very helpful all our work comes with a guarantee on completion

Similar Customer Enquiries for Flat roof

25 Nov

Roofing | Flat | Replacement

Llanelli - SA15

Enquiry from: Margaret E

Start Date: Immediate

Property type: House, Roof type: Flat, Work description: Flat roof

Post a similar request >

24 Nov

Roofing | Flat | Replacement

Telford - TF1

Enquiry from: William S

Start Date: Immediate

property type: house, roof type: flat, work description: flat concrete extension roof 6x4.5 meters approx. currently felt covered requires renovating are you the property owner: owner of the property...

Post a similar request >

24 Nov

Roofing | Flat | Replacement

Isle of Man - IM1

Enquiry from: Kevin L

Start Date: Immediate

complete re-do a flat roof and raise it at one end so there is a fall. we had this work done a few months ago but job is very poor and we have to have it done again. there is scaffolding up to the p...

Post a similar request >

24 Nov

Roofing | Flat | Replacement

Perth - PH2

Enquiry from: Susan L

Start Date: Immediate

Property type: Hotel, Roof type: Flat, Work description: flat roof inspection with a view to replace

Post a similar request >

24 Nov

Roofing | Flat | Replacement

Ashington - NE63

Enquiry from: David G

Start Date: Immediate

leaking flatroof extension where it connects to the house are you the property owner: owner of the property location of roof: extension property age: 1930-70 does the roof need to be replaced: yes cur...

Post a similar request >

23 Nov

Roofing | Flat | Replacement

London - SW7

Enquiry from: Andrew S

Start Date: Immediate

We are building a small conservatory on the existing balcony. The roof will be a timber structure with insulation and lead roof. I need the price for the lead roof please. The area is app***m

Post a similar request >

23 Nov

Roofing | Flat | Replacement

Barry - CF62

Enquiry from: Hugh J

Start Date: Immediate

Flat roof Lead Flat roof Lead Flat roof Lead Flat roof Lead

ballpark cost for corrugated roof replacement to 2 squash courts and changing rooms. approx 160m2 are you the property owner: owner of the property location of roof: other property age: 1970-2000 curr...

Post a similar request >

23 Nov

Roofing | Flat | Replacement

Ipswich - IP1

Enquiry from: Stuart H

Start Date: Immediate

we are a construction site looking for a company to come in and price some flat roofs for edpm.

Post a similar request >

22 Nov

Roofing | Flat | Replacement

Manchester - M45

Enquiry from: Mark R

Start Date: Immediate

Property type: House, Roof type: Flat, Work description: Present roof leaking

Post a similar request >

22 Nov

Roofing | Flat | Replacement

Ormskirk - L40

Enquiry from: Monika B

Start Date: Immediate

i’ve had a survey on a property i’m trying to buy and it mentions changing the roof felt in the near future (as well as adding insulation on top of the 150mm already there and thinking about chang...

Post a similar request >

22 Nov

Roofing | Flat | Replacement

London - N15

Enquiry from: Lyazid B

Start Date: Immediate

property type: house, roof type: flat, work description: hi are you the property owner: tenant (with permission) location of roof: other height: 3rd floor+ property age: 1900-30 current roof material...

Post a similar request >

20 Nov

Roofing | Flat | Replacement

Telford - TF1

Enquiry from: William S

Start Date: Immediate

flat rubber roof renovation are you the property owner: owner of the property property type: semi detached location of roof: extension height: 1st floor property age: 1930-70 current roof material: r...

Post a similar request >

20 Nov

Roofing | Flat | Replacement

Llanelli - SA14

Enquiry from: Peter W

Start Date: Immediate

property type: other roof type: flat, work description: i have a pergulla that i would like roof sheets put on. the size is 5 m x 4 m . i have all the materials.10 x 2m lengths box plus the screws fo...

Post a similar request >

17 Nov

Roofing | Flat | Replacement

Sheffield - S25

Enquiry from: Lynn L

Start Date: Immediate

We have a flat corrugated metal garage roof, which leaks where 2 sections join. We would like a quote for either repair or replacement. The garage is approximately 19ft 4" by 11ft 11"

Post a similar request >

17 Nov

Roofing | Flat | Replacement

Birmingham - B20

Enquiry from: Rattan B

Start Date: Immediate

Property type: House, Roof type: Flat, Work description: Require flat roof 3-layer felt + OSB boards replaced. The roof is easily accessible( no scaffolding required). It is at 3 levels: level 1: 2 s...

Post a similar request >

16 Nov

Roofing | Flat | Replacement

Rochdale - OL11

Enquiry from: Michelle M

Start Date: Immediate

Property type: House, Roof type: Flat, Work description: Replace a flat roof on a bay window on second floor

Post a similar request >

16 Nov

Roofing | Flat | Replacement

Manchester - M45

Enquiry from: Mark R

Start Date: Immediate

property type: detached roof type: flat, work description: present roof leaking location of roof: garage property age: 1970-2000 current roof material: roofing felt does the roof need to be replaced:...

Post a similar request >

15 Nov

Roofing | Flat | Replacement

Telford - TF1

Enquiry from: William S

Start Date: Immediate

Property type: Other, Roof type: Flat, Work description: Renovation to existing flat Felt roof on 6x4.5 Meter outhouse/extension roof.

Post a similar request >

15 Nov

Roofing | Flat | Replacement

Smethwick - B67

Enquiry from: Indi M

Start Date: Immediate

garage roof leaking, looking for replacement roof ideas are you the property owner: owner of the property location of roof: garage height: 1st floor property age: 1930-70 current roof material: roofin...

Post a similar request >

13 Nov

Roofing | Flat | Replacement

Penzance - TR19

Enquiry from: Liz D

Start Date: Immediate

Flat roof Lead Flat roof Lead Flat roof Lead Flat roof Lead

the flat roof over my dining room & wet room at my holiday let in lamorna, penzance needs replacing. the soffit board to the rear corner of the property has pulled away from the wall, lifting the fel...

Post a similar request >

How it works

Tell us about your Flat roof project

Answer a few quick questions so we can match you with professionals who can help.

Find up to 4 Roofers in your area

Get free, no-obligation quotes from 4 verified Roofers working in your area.

Hire with confidence

Compare customer reviews, services and prices, and choose the right professional for you.

Latest Flat roof completed projects

  • Completed Flat roofproject picture by Dartman Limited
  • Need more help?

    How Much Does a Roof Repair Cost? Published: 01/08/2019 Need some roofing work done urgently? Or planning a future project? Finding out up-to-date re-roofing and roof repair costs will help you budget for the work ahead of time. It can be tempting to avoid roofing projects, but it’s essential not to. Your roof is a vital part of your property, keeping your home warm […] Read this article
    10 Ways to Make Sure you Hire a Good Roofer Published: 02/07/2019 Hiring a good roofer is a big part of your roofing project, and once you’ve got that out of the way the rest of the process should run smoothly. Consider your choice carefully and do some research on the contractor first to ensure you are happy with giving them the job. We’ve put together the […] Read this article
    4 Tips for Getting the Best Deal on a New Roof Published: 08/05/2019 Got a leaking roof? Or is it old or looking tired? All of these things could indicate that you might need a new roof. Getting the best deal on a new roof It’s vital to have a roof that works properly, but this doesn’t have to break the bank. Whether it’s a big project or […] Read this article