HVAC design and heat load surveys in Purley
HVAC design and heat load surveys for businesses in Purley — 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 Purley?
Our guide range in Purley is £635–£3,150 per project before VAT; a typical job (design package for a 300–800 m² office) is £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.
Our coverage in Purley
Purley sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.
That includes premises in CR8 and the surrounding districts. We also cover Coulsdon, Wallington and Carshalton, all within easy reach of Purley. We plan work in Purley so the noisy parts happen when they disturb your business least.
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
HVAC design prices in Purley
These guide prices are adjusted for London, where labour and access costs run about 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.
From enquiry to handover in Purley
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. We keep work areas in Purley screened and tidy at the end of each day.
Specify
You receive drawings and a specification.
Before you book in Purley
Noise
Outdoor unit noise is designed in from the start, not fixed afterwards.
Working hours
Most Purley businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Diversity
Not every room peaks at once; good design accounts for diversity so central plant is not oversized.
Access and parking
Town-centre jobs in Purley often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
Types of premises we cover in Purley
- Hotels and hospitality: quiet bedroom units, public-area cooling and heat recovery for hotels.
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- 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.
Common questions from businesses in Purley
How much does HVAC design cost in Purley?
Guide prices in Purley 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 Coulsdon, Wallington and Carshalton?
Yes. Alongside Purley, we also cover Coulsdon, Wallington and Carshalton. Each has its own page with local guide prices.
Which postcodes do you cover in Purley?
All of them, including CR8. 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.
Can you produce a specification for tender?
Yes. We produce drawings and a written specification so contractors price the same system.
Need HVAC design and heat load surveys in Purley?
Heat loads for single installations are free with a quote; design fees are confirmed before work starts.