Loft conversions · Whitehaven

Loft conversions in Whitehaven

Homeowners in Whitehaven can get loft conversions from one company: the design, the paperwork and the building work sit with us rather than with three separate firms.

Covering Whitehaven

Alongside Whitehaven, we also cover Workington, Cockermouth (12 miles to the north-east) and Dalbeattie.

Projects in Cumbria are taken on by arrangement, and any travel and accommodation costs for the team are shown openly in the quote.

Homes in the North West

Terraced housing is a defining feature of many North West towns, which brings party walls and narrow access into most projects, with more space to extend on suburban semis.

What do you get with a loft conversion?

We start with the head height. You need roughly 2.2 m or more from the top of the ceiling joists to the underside of the ridge for a conversion to work without raising the roof. From there we design the staircase position, the type of conversion and the en-suite, and manage the whole build including fire safety and building control.

  • Loft survey and head-height check
  • Planning or lawful development certificate
  • Dormer or rooflights, insulation and plasterboard

What will a loft conversion cost?

Indicative costs for loft conversions. London and the South East usually sit towards the top of each range.

Loft conversionsGuide price incl. VAT
Rooflight conversion£30,000 to £45,000
Dormer conversion£50,000 to £90,000
Hip-to-gable with dormer£60,000 to £95,000
Mansard conversion£65,000 to £110,000

How is a loft conversion approved in Whitehaven?

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

In England many loft conversions are permitted development: the extra roof volume must stay within 40 m³ on a terraced house or 50 m³ on a semi or detached house, nothing can sit higher than the existing ridge, no dormer can face a road on the main elevation, and side windows must be obscure-glazed and non-opening below 1.7 m.

What should I think about before starting?

  • Head height under the ridge decides whether a conversion is practical.
  • Fire safety rules can mean new fire doors on the floors below.

What happens after I enquire?

  1. Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Loft conversions: common questions

How much does a loft conversion cost?

Roughly £30,000 to £45,000 for a rooflight conversion, £50,000 to £90,000 for a dormer, £60,000 to £95,000 for a hip-to-gable and £65,000 to £110,000 for a mansard, including VAT.

Is my loft suitable for conversion?

If there is about 2.2 m or more from the top of the ceiling joists to the underside of the ridge, it usually is. We check this at the free site visit.

Do you work in Whitehaven?

Yes. Whitehaven is within our coverage for loft conversions, along with nearby Workington and Cockermouth.

Other towns nearby

Learn more about loft conversions, or see every project we cover in Whitehaven.

Planning an extension, loft or new home?

Get a guide price in two minutes, then book a free site visit.

CallGet a quote