Home ventilation, Scottish Islands
MVHR installation in the Scottish Islands
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover, across the Scottish Islands.
- From £4,275 inc VAT per home
- By arrangement

For homeowners in the Scottish Islands, MVHR is usually part of a bigger job: new windows, insulation, a loft conversion or an extension.
The Scottish Islands has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.
MVHR in the Scottish Islands at a glance
- Area
- Scottish Islands, Scotland
- Towns listed
- 1, largest Stornoway
- Postcode districts
- HS2 and HS1
- Price region
- Scotland
- Survey
- By arrangement, travel quoted first
What the work involves
Filters on both sides keep pollen and dust out of the house and keep the exchanger clean. MVHR works best in a home that is reasonably airtight: a new build, a deep retrofit with insulation and new windows, or a renovation where ceilings are coming down anyway. In a draughty older house it still ventilates well, but less of the heat-recovery benefit is felt because warm air escapes through gaps instead of the unit.
New build or full renovation
Ducts go in at first fix before plasterboard, which is the cheapest and neatest time to fit MVHR.
Radial semi-rigid ducting
One small duct per valve from a manifold. Quieter and easier to balance than branched rigid duct in most homes.
Summer bypass and boost controls
Bypass lets cooler night air in without heat recovery; humidity or switch boost for showers and cooking.
Guide prices in the Scottish Islands
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home) | £4,275–£6,650 inc VAT |
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £6,200–£9,050 inc VAT |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £8,600–£13,400 inc VAT |
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £4,750–£7,650 inc VAT |
These ranges use our Scotland rates. Prices include VAT at 20%. You get a fixed written price before any work is booked. Travel is quoted separately for this area.
Common reasons people call
- A new build or extension where the SAP or building control needs a ventilation system
- Stale air or cooking smells that hang around
- Pollen or traffic pollution you want filtered out
Rules in Scotland
Scottish projects follow the Technical Handbooks (section 3, Environment) under the Building (Scotland) Regulations, usually with a building warrant. We work to the Scottish ventilation standards and record the airflow achieved.
How the job runs
- Survey and room schedule
- Design and airflow rates
- First fix
- Second fix and valves
- Commission and hand over
Towns we cover in the Scottish Islands
Questions about MVHR installation in the Scottish Islands
Are prices different in the Scottish Islands?
Our guide prices are adjusted by region. In the Scottish Islands we use Scotland rates, so whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,275 to £6,650 inc VAT per home.
How often does MVHR need servicing?
Filters usually need changing every 6 to 12 months, and a full service with a clean and airflow check once a year keeps the system efficient. Clogged filters are the most common reason MVHR stops working properly.
Can MVHR cool the house in summer?
MVHR is not air conditioning, but a summer bypass lets cooler night air in without warming it, which helps take the edge off hot rooms. For real cooling you would need a separate system.
Is the survey free in the Scottish Islands?
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.
Which rules apply to ventilation in the Scottish Islands?
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.
Other services in the Scottish Islands
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.