New builds, extensions and testing, Isle of Wight
Ventilation for new builds, extensions and lofts in the Isle of Wight
Part F designs, MVHR or extract installs and the commissioning paperwork building control needs, across the Isle of Wight.
- From £5,450 inc VAT per home
- By arrangement
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.
We carry out ventilation for new builds, extensions and lofts across the Isle of Wight, including Cowes, Sandown, Newport and Ryde. Prices use South East rates. Visits here are by arrangement: we quote travel separately and in writing before you commit.
New builds & extensions in the Isle of Wight at a glance
- Area
- Isle of Wight
- Towns listed
- 4, largest Newport
- Postcode districts
- PO33, PO34, PO30, PO31, PO35 and PO36
- Price region
- South East
- Survey
- By arrangement, travel quoted first
What ventilation for new builds, extensions and lofts involves
For new dwellings in England, Approved Document F sets whole-home ventilation rates and requires mechanical systems to be commissioned and the results given to building control. Extensions and loft conversions have their own triggers: a new wet room needs extract, a new habitable room needs background ventilation or a connection to the ducted system, and energy-efficiency work can mean the existing home needs more ventilation too. We work for self-builders, small developers, builders and architects.
Extensions and lofts
Extract for new bathrooms and kitchens, background ventilation for new rooms.
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.
Guide prices in the Isle of Wight
| Work | Guide price |
|---|---|
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,450–£8,750 inc VAT |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £380–£650 inc VAT |
| Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home) | £160–£325 inc VAT |
| MVHR or MEV commissioning test, every terminal measured and recorded (per system) | £270–£435 inc VAT |
Guide prices using South East rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first. Travel is quoted separately for this area.
Common reasons people call
- A self-build with an airtightness target
- Ceilings are about to be boarded
- Building control has asked for a ventilation strategy or commissioning sheet
Rules in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
How the job runs
- Drawings
- Design
- First fix
- Second fix
- Commission
Towns we cover in the Isle of Wight
Questions about ventilation for new builds, extensions and lofts in the Isle of Wight
Is the survey free in the Isle of Wight?
Visits here are by arrangement. Because of the ferry or long travel involved, we quote travel separately and in writing before you commit, and we can often combine visits to keep the cost down.
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.
Can you just test a system someone else installed?
Yes. We can commission and test systems installed by others, and report any issues we find.
Which rules apply to ventilation in the Isle of Wight?
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Which towns in the Isle of Wight do you cover?
All of the Isle of Wight, including Cowes, Sandown, Newport and Ryde. If your town is not listed, send the postcode and we will confirm.
Other services in the Isle of Wight
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.