HVAC design and heat load surveys in Barnet
HVAC design and heat load surveys for businesses in Barnet — surveyed, designed and priced in writing before any work starts.
- Design fees confirmed in writing first
- Equipment, positions and price set out in writing
- Work planned around your opening hours
How much does HVAC design cost in Barnet?
In Barnet, guide prices run from about £635 to £3,150 per project, plus VAT. A typical job (design package for a 300–800 m² office) usually comes to £1,250–£3,150 plus VAT. Your exact price is fixed in writing before any work starts.
An HVAC design and heat load survey works out how much heating and cooling each space needs — from occupancy, equipment, lighting, glazing, orientation and the building fabric — and sets out the system type, unit sizes and positions, pipe and duct routes and controls in a written specification.
Where we work around Barnet
Barnet sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.
We work across Barnet's postcode districts, including EN5. We also work in nearby East Barnet, Potters Bar and Borehamwood. Buildings across London range from converted period offices to modern units with deep ceiling voids, so we measure each site rather than relying on a standard package.
What we do
- Room-by-room heat gain and heat loss calculations
- System options with pros, cons and budget costs
- Layout drawings for units, pipework and condensate
- Noise data for planning or landlord approval
- Written specification for pricing
Guide prices in Barnet
Prices below include our regional adjustment for London (28% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Heat load survey for a single installation | Free | Free | free with a quote |
| Design package, small premises | £635–£1,250 | £762–£1,500 | per project |
| Design package, larger premises | £1,250–£3,150 | £1,500–£3,780 | per project |
| Noise assessment data pack for planning | £380–£1,150 | £456–£1,380 | per project |
Ex VAT. Design fees for larger projects are credited against installation if we carry it out.
How it works in Barnet
Brief
We agree the use, occupancy, hours and budget.
Survey
We measure the space and record fabric, glazing and services.
Calculate and design
Loads are calculated and a system designed. In Barnet we agree timings around your opening hours.
Specify
You receive drawings and a specification.
Before you book in Barnet
Noise
Outdoor unit noise is designed in from the start, not fixed afterwards.
Leased premises
If your Barnet premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.
Future use
Allow for growth in occupancy or IT load.
Shared buildings
In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.
Types of premises we cover in Barnet
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
Two rules matter for most businesses in England: GB F-gas rules (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.
Your questions answered
How much does HVAC design cost in Barnet?
Guide prices in Barnet run from about £635 to £3,150 per project, plus VAT. A typical job (design package for a 300–800 m² office) costs £1,250–£3,150 plus VAT. We confirm the price in writing before work starts.
Do you also cover East Barnet, Potters Bar and Borehamwood?
Yes. Alongside Barnet, we also cover East Barnet, Potters Bar and Borehamwood. Each has its own page with local guide prices.
Which postcodes do you cover in Barnet?
All of them, including EN5. Give us your postcode when you enquire and we will confirm the visit details.
Why do I need a heat load calculation?
It sizes the system to what the room actually needs, avoiding oversized equipment that wastes money and undersized equipment that cannot cope.
Do you provide noise data for planning?
Yes. We can supply manufacturer noise data and calculations to support a planning application.
Need HVAC design and heat load surveys in Barnet?
Heat loads for single installations are free with a quote; design fees are confirmed before work starts.