Timber frame and roof trusses of a house under construction

Group E · New build, extension and structural wall systems

Timber frame with insulation

Closed-panel timber frame with mineral wool or wood-fibre and an airtight membrane.

Discuss your project Check my EPC

Priced after survey

Installed, inc. VAT

Every job like this is different, so we measure first and give you a fixed written quote. The price depends on:

The area and access
What's there now and its condition
The system and finish you choose

Discuss your project

No obligation — your survey confirms what suits and what it costs.

Best for: New builds, extensions
Guarantee or standard: Part L
Time on site: Set by the build programme — agreed with you and your designer.
Typical price: Priced after survey

What it is

What is timber frame with insulation?

Closed-panel timber frame with mineral wool or wood-fibre and an airtight membrane.

Best for: New builds, extensions.

Build-up

Timber frame wall

Not to scale

InsideOutside

1Plasterboard
2Service void
3Vapour control layer
4Mineral wool or wood-fibre between studs
5Sheathing board
6Breather membrane and cladding

Who it suits

Which homes is timber frame with insulation suitable for?

Is my home suitable?

Pick your property type for a straight answer on timber frame with insulation.

What type of property is it?

Guidance only — every home is different, and a survey confirms what suits yours.

Houses

Flats and blocks of flats

Commercial and public buildings

Usually suitable Depends — a survey confirms

Not usually suitable for 6 property types

Park and mobile home — Park and mobile homes need specialist systems, which we arrange through a partner rather than standard measures.
Converted flat — New-build systems are for new buildings and extensions, not a retrofit for an existing flat.
Purpose-built flat — New-build systems are for new buildings and extensions, not a retrofit for an existing flat.
Ground-floor, top-floor flat or maisonette — New-build systems are for new buildings and extensions, not a retrofit for an existing flat.
Mansion block — New-build systems are for new buildings and extensions, not a retrofit for an existing flat.
Ex-local-authority flat or maisonette — New-build systems are for new buildings and extensions, not a retrofit for an existing flat.

Materials and brands

What we use

Closed-panel timber frame, mineral wool or wood-fibre, airtight membrane.

Heat, bills and EPC

What it does for your heat loss, bills and EPC

In a new build the walls, roof and floor are designed together to meet Building Regulations Part L, and the SAP calculation shows the result before you build. Better airtightness and fewer thermal bridges mean lower running costs from day one, and a strong EPC on completion.

See the EPC points and savings for your home in the EPC plannerU-value before and after, typical heat and bill saving, and EPC points — worked out for your property.

Price

How much does timber frame with insulation cost?

Priced after survey

Jobs like this vary too much for a fair online price, so we measure first and give you a fixed written quote — with no obligation.

VAT on this work

Insulation installed in homes in Great Britain is zero-rated for VAT until 31 March 2027. Other parts of a job like this — such as a new roof covering, structural work or waterproofing — may be standard-rated. Your quote shows the split.

Discuss your project

What to expect

Time on site, disruption and approvals

Time on site

Set by the build programme — agreed with you and your designer.

Disruption

Part of a new build or extension project rather than work in an occupied home.

Planning and building control

Planning and building control for the project, design-stage SAP calculations, and the system's certificate (with warranty provider acceptance where relevant).

Guarantee and standard

Part L. The guarantee and certification for your job are confirmed in writing in your quote.

Questions