Ventilation for new builds, extensions and lofts in Forth Valley

New homes, extensions and loft conversions need ventilation that meets the building regulations and is tested before sign-off. We design the system, install it at the right stage of the build, measure the airflows and provide the commissioning information building control asks for.

Every job in the Forth Valley gets a written quote before it starts and a commissioning record when it finishes. We cover Falkirk, Alloa, Grangemouth, Bo’ness and Stirling and the villages around them.

New builds & extensions in the Forth Valley at a glance

Area: Forth Valley, Scotland
Towns listed: 5, largest Stirling
Postcode districts: FK1, FK2, EH49, EH51, FK7 and FK9
Price region: Scotland
Survey: Free survey (UK mainland)

How we do it

We work for self-builders, small developers, builders and architects. Fitting ducts at first fix is far cheaper than retrofitting, so it pays to involve us before the ceilings go up.

Commissioning only

Testing and paperwork for systems installed by others.

MVHR for new builds

Design, first fix, second fix and commissioning for whole-home heat recovery.

MEV or dMEV

Continuous extract systems where MVHR is not specified.

Guide prices in the Forth Valley

Ventilation for new builds, extensions and lofts guide prices in the Forth Valley
Work	Guide price
MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home)	£4,750–£7,650 inc VAT
Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan)	£330–£575 inc VAT
Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home)	£140–£285 inc VAT
MVHR or MEV commissioning test, every terminal measured and recorded (per system)	£235–£380 inc VAT

Scotland rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.

When to get it looked at

You are insulating and re-windowing an existing home
A self-build with an airtightness target
Ceilings are about to be boarded

Rules in Scotland

In Scotland, ventilation is covered by the Building (Scotland) Regulations and section 3 of the Technical Handbooks, and most building work needs a building warrant first. We work to the Scottish ventilation standards and record the airflow achieved.

How the job runs

Drawings
Design
First fix
Second fix
Commission

Towns we cover in the Forth Valley

Questions about ventilation for new builds, extensions and lofts in the Forth Valley

Are prices different in the Forth Valley?

Our guide prices are adjusted by region. In the Forth Valley we use Scotland rates, so MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms is typically £4,750 to £7,650 inc VAT per home.

When should MVHR be fitted in a new build?

MVHR ducts should go in at first fix, after the structure and before plasterboard. Planning it at design stage avoids clashes with joists and steels.

How much does MVHR cost in a new build?

For a 3 to 4 bedroom new build, MVHR fitted at first fix usually costs £4,950 to £7,950 including VAT. VAT on new-build work can differ, so we confirm the treatment on your quote.

Is the survey free in the Forth Valley?

For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.

Which rules apply to ventilation in the Forth Valley?

In Scotland, ventilation is covered by section 3 of the Building Standards Technical Handbooks. Private rented homes must meet the Repairing Standard, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

Ventilation for new builds, extensions and lofts in the Forth Valley