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    Lower Cost Roofing for Extensions or Garages!

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    Flat Roofers

    Flat roofing has something of a reputation for being leaky and unreliable, but today there are plenty of effective flat roofing options which are durable and attractive. Flat roofing materials are now a lot more reliable and affordable, no longer constructed from layers of felt and asphalt with joins that leak over time. Old style flat felt roofs were well known for leaking after only five years, but modern flat roofs are expected to last for up to 30 years leak free! Flat roofs are usually a lower cost alternative to traditional pitched roofs, particularly common on extensions and garages.

    The term "Flat roof" is not strictly accurate as they are in fact built to have to a slight slope so water can still drain off. New single-ply waterproof membranes are the most commonly used construction method as it is strong, durable and sealed for at least 25-30 years. Flat roofs can be split into two categories; cold roofs and warm roofs. Cold roofs have a waterproof layer placed directly onto the roof deck with the insulation inside the roof, these type of roofs require ventilation to avoid condensation. Warm roofs are the type most used by reputable builders in residential properties, in this type of flat roof insulation is applied above the roof deck with waterproofing on top, this eliminates the need for ventilation as it keeps the roof warm avoiding condensation.

    Flat Roofing Materials

    Modern flat roofs are made up of a number of layers: the roof deck, the vapour control layer, the thermal layer, the waterproofing layer and the surface layer. Roof decks are made of metal, concrete, timber, composite materials or plywood. The vapour control Layer is inserted between the deck and the insulation and is made of polyethylene membrane, bitumen sheet or polymeric foil. The thermal layer is a cellular material like polystyrene or mineral wool which traps air to insulate.

    The waterproofing layer is made of thermoplastic, PVC, resin or rubber like materials , with the best options being those with no seams or joins to prevent leaks. The surface layer can be stone chippings, mineral finish or a hard resin finish to protect the waterproofing layer.

    Building Regulations for Flat Roofing

    Qualified roofing contractors will be able to advise on building and planning requirements, but the main guidelines include: the roof should drain to one or two edges using a slope of 1:80, the waterproofing should extend up the adjacent walls at least 150mm, all cold roofs must have ventilation, and roofs must be strong enough to walk on. You should always consult your local authority to see if planning permission is necessary, but in most cases this will only be required if you live in a listed building or conservation area.

    Flat Roof Replacement Cost

    The cost of replacing a flat garage or house roof will depend on the size of the roof and the materials used. Often flat roofs are made up of layers of felt and waterproof material and replaced with a flat roof membrane that is normally priced by the metre. Typical examples of flat roof replacement cost using membranes such as Permaroof are between £1100 and £3600 depending on the size and whether or not the roof insulation, fascias, lead flashing and soffits also need replacing.

    To get an exact price (and for roofing jobs it is always recommenced to always get a fixed price rather than accept an hourly rate), please use the "post your job" button on this page to have local roofers get in touch with you to arrange a survey and provide a no cost, no obligation quote in writing.

    GLOVERS JOINERS have been trading mostly in the East Dunbartonshire area for some 25 years now , doing ALL things carpentry / joinery based with great effect. Glovers joiners is a small family firm consisting of Martin the father, & Adam the son...

    Most recent homeowner review

    "Mr. Glover was just the sort of workman that we wanted and we have no hesitation in rating him as the best! I would not hesitate to recommend him and in fact have already done so!"

    Wooden Sash Window
    By Hilary on 6th Oct 2020

    Glovers Joiners reply: Hillary you & par we're lovely people to work for it was a pleasure keep safe & anything else you want just call cheers Martin

    • Joined Dec 2015
    • Established 1990
    • Flat Roof in Glasgow
    • ID checked

    London Roofing is a family run business which has been running for 20 years with highly skilled and fully insured workforce. We cover all aspects of roofing from a single tile replacement to a complete re:roof, we are based in Greater London with e...

    Most recent homeowner review

    "Excellent isn’t the right word, Nikki went out of his way to make sure we get what we wanted, not only reasonably priced but also professional team who did not disturb me at all as I work from home. Got on with every and cleared a..."

    Flat Roof
    By Angel on 15th Jan 2021
    • Joined Jan 2017
    • Established 2004
    • Flat Roof in West drayton
    • Public liability insurance
    Most recent homeowner review

    "Great friendly service, got exactly what I asked for, would definitely use again"

    Guttering and Rainwater Pipe
    By Rachel on 20th Jan 2021
    • Joined Feb 2020
    • Established 2018
    • Flat Roof in Ilkeston
    • Public liability insurance

    We are a building business covering a variety of trades including general maintenance, roofing and ground work. We have a great work ethic and will try our best to accommodate your needs.

    Most recent homeowner review

    "Highly recommended. All men were lovely and good company. Very high standard of work. Rob made sure that I was happy with the job. Thanks you."

    Internal Walls
    By Dasha on 28th Dec 2020
    • Joined Jan 2020
    • Established 2019
    • Flat Roof in Manchester
    • ID checked

    JL ROOFING & LEADWORK SERVICES Fully insured We Provide a 100% satisfaction service to all our customers Established since 2012 What we do as a company Lead work Tilling / Slatting Heritage work New roofs / strip a...

    Most recent homeowner review

    "Worked tidily and efficiently replacing flat lead roofing and surrounding tiles"

    Flat Roof
    By Will on 14th Jan 2021
    • Joined Jul 2019
    • Established 2012
    • Flat Roof in Maidstone
    • Public liability insurance

    Friendly, trustworthy, reliable and competent family business. Over 28 years experience in roofing.

    Most recent homeowner review

    "Niki and team came at short notice to assist with completion of a loft conversion. Work done quickly and efficiently for a reasonable price. Highly recommended."

    Velux / Skylight Window
    By Mark on 14th Dec 2020
    • Joined May 2019
    • Established 1991
    • Flat Roof in
    • ID checked

    D and S BUILDERS Formed in 2008, D+S Builders has many years of experience in the building contractors trade, and provides building services to clients throughout the region. The company is based in Nanpean (St. Austell). No job too small and free e...

    Most recent homeowner review

    "Excellent from start to finish!!!! Thank you so much!!!!"

    Roof Repair
    By Jenny on 6th Dec 2020

    D and S Builders reply: You are very welcome We are pleased that you are happy

    • Joined Aug 2015
    • Established 2008
    • Flat Roof in St. austell
    • ID checked

    J & M Roofing have been established for over 20 year's.we have 20 years experience in the roofing industry and undertaken all aspects of roofing project there is nothing we have not seen.our reputation is very important and take great care...

    Most recent homeowner review

    "Mark arrived to inspect the roof as promised and gave a quality and helpful explanation as to the work which was needed. Arrived two days later to carry out the job and did so neetly. Showed us before and after pictures and solved..."

    Roof Repair
    By Joe on 6th Jan 2021
    • Joined Dec 2017
    • Established 2010
    • Flat Roof in Bolton
    • ID checked

    I’m a sole trader who has just started he’s own business trying to help those in need so if you have any more questions regarding work that you may need doing don’t hesitate to ask

    Most recent homeowner review

    "job completed on schedule and at the price agreed. I will not know the true effectiveness of repair until we have the next downpour. That said Patrick said he would return if issues were not 100% addressed. I'm sure this will not..."

    Flat Roof
    By Rupert on 17th Dec 2020
    • Joined May 2020
    • Established 2020
    • Flat Roof in St. austell
    • Public liability insurance

    ‼️ We cover all Aspects of roofing ‼️ • upvc fascia soffits & guttering • flat roofs torch on felt & rubber epdm • new roofs & roof repairs • repointing • dry ridge system & dry verge ❌no pressure ❌no sales talk ❌no call...

    Most recent homeowner review

    "The team of roofers worked extremely efficiently together. So far the leakage problem on the flat roof appears to have been solved."

    Flat Roof
    By David on 28th Nov 2020
    • Joined Dec 2016
    • Flat Roof in Walsall
    • ID checked

    Here at AP Building & roofing we are a family run business. Between us we have over 65 years experience in all trades and always strive to give our customers the best results possible. We carry ou a wide range of work from structural, to kitchens...

    Most recent homeowner review

    "Job was done quickly and professionally. We have had heavy rain since and the roof has been perfect."

    Roof Repair
    By Michael on 17th Nov 2020
    • Joined Aug 2017
    • Established 2016
    • Flat Roof in Ashton-under-lyne
    • ID checked

    Here at Westwood Roofing Services we take pride in our work and are a family run business and have been operating since 1988 when my grandfather set up which was then passed down to my father and now me. We specialise in all types of roofing from fl...

    Most recent homeowner review

    "Clean professional and know what they are doing with excellent experience."

    Flat Roof
    By Nibbs on 15th Dec 2020
    • Joined Sep 2020
    • Established 1988
    • Flat Roof in Cradley heath
    • ID checked

    Top Rank Roofing and Building Ltd can guarantee all work, no matter how big or small, is completed to a high standard, evidenced by a fantastic reputation. With years of experience, the team achieves organisation on site alongside a well managed wo...

    Most recent homeowner review

    "Excellent service. Kept me informed of short delays which were due to the weather. Completed the work to a very good standard and in a timely manner. Good value for money."

    Chimney Building / Repair
    By Sharon on 21st Jul 2020
    • Joined Jan 2017
    • Established 2016
    • Flat Roof in Dartford
    • ID checked

    WEATHERSEAL ROOFING & PROPERTY MAINTENANCE LTD have been trading as a Roofing company around the area of West Yorkshire & surrounding areas, with 16 years experience.... WEATHERSEAL ROOFING & PROPERTY MAINTENANCE LTD can help with:...

    Most recent homeowner review

    "Very helpful and professional."

    Roof Repair
    By John on 4th Jan 2021
    • Joined Nov 2019
    • Established 2018
    • Flat Roof in Otley
    • ID checked

    We are a family run business that are hear to help u make your home how u want it. We also have public liability insurance for peace of mind as well. We specialise in fencing and gates and decking and all aspects of landscaping including patios and d...

    Most recent homeowner review

    "Bradley's business partner, Dave, came and he was GREAT!! Dave was very thorough and informative about the GRP roof that I had selected. The price given was competitive and fair. They are flexible and punctual - another bonus!..."

    Roof Conversion
    By Miki on 26th Nov 2020
    • Joined Jun 2018
    • Established 2010
    • Flat Roof in Orpington
    • Public liability insurance

    Paul owner of PB Maintenance Roofing and Building has over 18 years experience in the construction industry. We offer a 24 hour 7 day a week call out service. A friendly, reliable and honest sole trader.

    Most recent homeowner review

    "Paul was really good got straight onto job and drain was unblocked within an hour. Friendly service reasonable price would highly recommend."

    Guttering and Rainwater Pipe
    By Iram on 1st Feb 2020

    PB Maintenance reply: Thank you for your review

    • Joined Oct 2018
    • Established 2006
    • Flat Roof in Salford
    • ID checked

    Able roofing and building have over 25 years in the construction trade from small jobs to new builds extensions etc . Brickwork jobs planning work from drawings to specific needs . All roof work from 1 slate to full re roofs flat roofs all work car...

    Most recent homeowner review

    "Excellent tradesman very prompt and good price"

    Roof Repair
    By Warren on 10th Jan 2021
    • Joined Sep 2018
    • Established 1998
    • Flat Roof in Accrington
    • ID checked

    Hi and welcome to fairway home improvements. Get in touch today for a free no obligation quote don’t choose the wrong way choose the fairway

    Most recent homeowner review

    "The management and workers were professional and hard working. Every effort was made during the work to maintain cleanliness in what was a very dirty operation and on completion the site was left in a clean state. Well done..."

    Roof Cleaning
    By Harry on 27th Oct 2020
    • Joined Jul 2020
    • Flat Roof in Darlington
    • ID checked

    I am fully qualified roofer apprenticeship in 2007 i am very reliable hard working good price work will never cut corners nothing in roofing that i cant do also i do loft boarding 2 types loft zone or full timber floors can show work what i have inst...

    Most recent homeowner review

    "Reliable and responsive"

    Loft Boarding
    By Kate on 12th Jan 2021
    • Joined May 2020
    • Flat Roof in Leeds
    • Public liability insurance

    Plumbing, bathroom installation, tiling blocked drains, roofing, guttering, locks, fencing, decorating and emergency callouts

    Most recent homeowner review

    "James arrived when he said he would. Very efficient and tidy too. The problem was soon identified and repaired. Very pleased and will definitely use James again."

    Electric Showers
    By Geoff on 5th Oct 2020
    • Joined Apr 2020
    • Flat Roof in Hatfield
    • Public liability insurance
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