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Roofs we replace and build

Dormer roofs in New Milton

Across New Milton and the wider Hampshire, we rebuild dormer flat roofs with insulation to current guidance and new trims that throw water clear of the window. Each roof is surveyed first, and the fixed price comes in writing. Every re-roof carries a written workmanship guarantee.

Rear box dormer with a grey GRP flat roof and anthracite cladding on a Victorian terraceComputer-generated example image

New Milton at a glance

Postcode districts
BH25
Population
about 25,546 (GeoNames)
Council area
New Forest District Council
Building approval
New Forest District Council building control, or a registered building control approver
Nearest main town
Bournemouth, about 10 miles
Guide price region
South East (+10% on West Midlands rates)

What does a dormer roof in New Milton need?

In New Milton, as anywhere, it often makes sense to replace a dormer roof while scaffold is already up for other work, such as new windows, rendering or repairs to the main roof. Sharing the scaffold keeps costs down and means every edge of the dormer can be checked at the same time.

In and around New Milton, flat roofs are typically found on low-rise post-war blocks of flats, and on terraced streets with flat-roofed rear kitchens and bathrooms. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain.

How much does a new dormer roof cost in New Milton?

Guide price in New Milton: £1,550–£2,900 for an 8 m² GRP dormer roof including scaffold, including VAT at South East rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Dormer (8 m²), GRP, scaffold£1,550–£2,900
Single garage (18 m²), EPDM rubber£1,750–£3,100
Extension (20 m²), GRP, new deck + insulation£3,300–£5,900

How long does a dormer roof replacement take?

The roofing itself typically takes one to three days, with scaffold going up before and coming down after. Allow a few extra days overall for the scaffold.

The room under the dormer stays usable, though it will be noisy during the strip-out, and dust can fall through gaps around the ceiling. Moving furniture away from the window helps. Scaffold usually needs space on the drive or garden, and sometimes a pavement licence. GRP has a strong smell while it cures, so keep the dormer windows shut on the day it is laid.

What's included?

  • Warm-roof insulation and a vapour control layer
  • Strip-out of the old covering and deck repairs
  • Free survey of the dormer roof, cheeks and main roof junction
  • Written workmanship guarantee, with building control handled where needed

Building regulations in England

Replacing more than half of a flat roof over a heated room usually counts as renovating a thermal element, so the roof is insulated to around 0.16 W/m²K where that's technically and economically feasible, and the work is notified to building control: the council or a registered building control approver, unless a registered competent person self-certifies it. A roof on a new extension is built to 0.15 W/m²K. Patch repairs, and most unheated detached garages, don't trigger the upgrade. Structural changes, or a new covering that adds 15% or more to the roof's weight, also need approval. More on the rules.

Which nearby areas do we also cover?

Dormer roofs in New Milton: questions

Do you cover New Milton?

Yes. New Milton is part of our Hampshire coverage, including postcode districts BH25. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.

Who checks building regulations for a flat roof in New Milton?

Where the work needs approval it goes to New Forest District Council building control, or a registered building control approver. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.

How much does a new dormer roof cost in New Milton?

£1,550–£2,900 for an 8 m² GRP dormer roof including scaffold, at South East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Will insulating my dormer roof make it higher?

Yes, by the insulation thickness. We plan the build-up so the new roof still sits correctly under the main roof tiles at the back edge.

Does the room below need emptying?

No, but moving furniture away from the window and covering the floor is sensible. The room stays usable throughout.

Other flat roof work in New Milton

Dormer roofs in New Milton: get a fixed price

Free survey and a written fixed quote for replacement and new roofs. No obligation.

Call usGet a guide price