HVAC design and heat load surveys in Hounslow
HVAC design and heat load surveys for businesses in Hounslow — 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 Hounslow?
In Hounslow, 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 Hounslow
Hounslow sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.
We cover every Hounslow postcode, including TW3, TW4 and TW6. Neighbouring towns we cover include Isleworth, Heston and Richmond. 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
- Layout drawings for units, pipework and condensate
- Electrical load and supply requirements
- Noise data for planning or landlord approval
- Written specification for pricing
Local guide prices for Hounslow
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 Hounslow
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 Hounslow screened and tidy at the end of each day.
Specify
You receive drawings and a specification.
What to think about in Hounslow
Diversity
Not every room peaks at once; good design accounts for diversity so central plant is not oversized.
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.
Future use
Allow for growth in occupancy or IT load.
Leased premises
If your Hounslow 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.
Typical premises in Hounslow
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Questions about HVAC design in Hounslow
How much does HVAC design cost in Hounslow?
Guide prices in Hounslow 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 Isleworth, Heston and Richmond?
Yes. Alongside Hounslow, we also cover Isleworth, Heston and Richmond. Each has its own page with local guide prices.
Which postcodes do you cover in Hounslow?
All of them, including TW3, TW4 and TW6. Give us your postcode when you enquire and we will confirm the visit details.
Is the survey free?
For a straightforward installation, the survey and heat load are free with your quote. Full design packages for larger projects are charged and credited if we install.
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 Hounslow?
Heat loads for single installations are free with a quote; design fees are confirmed before work starts.