LUTON & SURROUNDING AREAS20-YEAR GUARANTEE ON NEW ROOFS · FULLY INSURED
Lifetime Roofing Specialist

Flat roofs in Luton, keep the room beneath dry

Flat roofs in Luton for extensions, dormers and outbuildings. Get your free quote for the covering, deck and drainage your roof needs.

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Dark flat dormer roof seen from an adjoining tiled slope
20 yearsGuarantee on new roofs

Give rain a clear way off your flat roof.

Water on a flat roof needs a clear fall towards an outlet. When seams open, edges lift or the covering breaks down, that water reaches the deck beneath it. We inspect the surface and the connected details to establish where rain gets in. A leak beside a rooflight calls for a different repair from a failed covering across the whole roof. We explain the fault and the work needed before recommending a repair or replacement.

The deck supports every part of the waterproof covering. A soft or deteriorated deck leaves a new surface without a reliable base, so we assess its condition as part of the job. We also consider the insulation and how the roof meets the surrounding walls. You get a specification that identifies the agreed layers, rather than a price that describes only the visible finish. That makes the scope clear before your extension or dormer roof is opened.

Edges, outlets and upstands are central to keeping the room below dry. We form the agreed junctions so the covering carries water to its drainage point and turns up correctly at walls and rooflights. On a dormer, we also check the meeting with the pitched roof around it. Your free quote explains the work, access and price with no hidden costs. A complete new flat roof comes with our 20-year guarantee on new roofs, with written terms for you to review.

What’s included in your flat roofs quote

We assess the following details and identify the work included in your agreed scope.

  • We inspect the existing covering for split seams, lifted edges and defects around previous patches.
  • We assess the supporting deck and identify the sections that need attention beneath the waterproof surface.
  • We review the roof fall and outlet position so drainage is considered before the covering is specified.
  • We explain the proposed insulation and roof build-up for the space beneath your roof.
  • We form the agreed wall upstands and flashings to close the junction between roof and masonry.
  • We detail the covering around rooflights, where small gaps allow water to reach the surrounding deck.
  • We connect the roof edge to the gutter or outlet so rain leaves the building cleanly.
  • We set out access, removal of replaced material and the scope of repair or replacement in your quote.

Signs your roof needs attention

  • Water stays in the same depression and the nearby covering is splitting or lifting.
  • Brown marks develop around the rooflight or along the extension ceiling after rain.
  • The roof edge has separated from its trim or adjoining wall flashing.
  • Repeated patches have left the same leak returning through the next wet spell.
  • The deck is visibly sagging or the surface has lost support beneath it.

How we get the work done

  1. Describe the room and roof

    Tell us whether the flat roof covers an extension, dormer, garage or commercial space. Explain where water appears and whether a rooflight, wall or outlet sits above the affected area.

  2. We check the whole build-up

    We assess the covering, supporting deck and drainage details. We explain whether a local repair addresses the fault or whether the condition calls for a replacement roof.

  3. Review the specification

    Your free quote identifies the proposed work, including agreed deck, insulation, edge and flashing details. You can review the price and the scope before deciding to go ahead.

  4. We fit and finish the roof

    We complete the agreed layers and junctions, checking the route to the outlet and the connection with neighbouring roofs. We explain the finished work and the paperwork supplied for your roof.

Why choose Lifetime for flat roofs?

Your flat roof protects a room you use, so the layers you cannot see matter as much as the finished surface. We bring over 10 years’ experience and public liability insurance to the work. Malcolm’s five-star MyBuilder review below is specifically about his flat roof. His words describe communication and workmanship, while your free quote gives you a clear specification and price for the roof above your own room.

★★★★★

Flat roof

Just had lifetime roofing do my flat roof they have done an amazing job from start to finish the communication from John was perfect and the quality of work from his lads was the same.
MalcolmApril 2025 · MyBuilder

Typical local costs and your free quote

These figures compare typical covering categories, rather than specifying a system for your roof. Deck repairs, insulation, edge details and access change the final scope, which we assess before quoting.

Typical market ranges for Bedfordshire, Northamptonshire and Cambridgeshire. These are guide figures, not Lifetime Roofing prices.

Replacement felt covering: £70 to £120 per m²; Replacement rubber covering: £85 to £140 per m²; Replacement fibreglass covering: £90 to £160 per m².

Read the flat roof cost guide, then request your free quote for the work at your property. We explain the scope and price before you agree.

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Plan the work in your area

Let’s get it sorted

Your roof. A clear next step.

Tell us what is happening and where. You get an honest assessment and a free quote with clear pricing.

01582 377504

Monday to Friday 9am to 6pm. Saturday and Sunday 9am to 5pm.

Fully insured. Over 10 years’ experience.

Tell us what your roof needs

A roofer will contact you to discuss the job. Free quote, no obligation.

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Before you book

Straight answers about your roof

Can you repair a leaking dormer flat roof?
Yes. We inspect the flat covering and the junction with the surrounding pitched roof. Rooflight edges, wall upstands and outlets are included in the assessment so the source of the leak is addressed.
Do I need a new deck as well as a covering?
We inspect the deck before deciding that. Sound decking and deteriorated decking need different scopes, and we explain the condition we find. Your quote identifies any deck replacement included in the work.
Can you include insulation in a flat-roof replacement?
Yes. We assess the roof build-up and include the agreed insulation work in the specification. The arrangement needs to suit the roof and room below, including ventilation and the finished junction heights.
Is a new flat roof covered by your guarantee?
Yes. Our 20-year guarantee applies to new roofs. We provide the written terms with the specification so you can review the guarantee for your new flat roof before agreeing the work.
Can I send photographs for an initial enquiry?
Yes. Photos from a safe position help explain the roof and the affected room. Stay off a damaged or suspect deck. We use your description to arrange the assessment and prepare the repair scope.
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