Air Source Heat Pump Costs in Lewisham
Air source heat pump installation for heating and hot water - local pricing for Greater London.
Mid-range air source heat pump • per system • 2-4 days
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Adjust the sliders below to reflect your project. Each factor is based on what typically affects heat pump costs in Lewisham.
Want an accurate quote from local professionals in Lewisham? Complete our short form and we'll connect you with specialists who can price your project properly.
Get Accurate Local Quotes →Slider figures are indicative guides only, not formal quotes. Final costs depend on site surveys, specifications, and contractor pricing.
About Air Source Heat Pump in Lewisham
Considering a Air Source Heat Pump project in Lewisham? Knowing the actual costs beforehand is essential for planning. Our calculator uses Lewisham-specific pricing data to deliver accurate estimates.
According to current 2026 Lewisham rates, plan on spending between £10,800 and £18,900 for Air Source Heat Pump. Top-tier installations may exceed this range.
What's Included
- Site survey and design
- Heat pump unit supply
- External unit installation
- Internal unit/cylinder
- Pipework and connection
- Electrical connection
- Controls setup
- MCS certification
Price Factors
Knowing why prices differ enables you to assess quotes fairly. In Lewisham, tradesperson rates, supply chains, and job requirements all influence pricing.
The sliders in the estimate calculator above map to these factors — move each one to match your project.
- Heat pump size (kW)
- Property insulation level
- Radiator upgrades needed
- Hot water cylinder
- Noise considerations
- BUS grant eligibility
Get Free Quotes
Receive up to 3 free Air Source Heat Pump quotes from trusted Lewisham contractors. Review prices and select the ideal option for your budget.
Get Quotes →Consumer Advice: Hiring a Tradesperson
Before committing to any air source heat pump project, follow these essential tips to protect yourself and ensure a successful outcome.
Get Multiple Quotes
Always obtain at least 3 written quotes from different contractors. Compare not just prices, but what's included, timelines, and payment terms. Be wary of quotes significantly lower than others.
Check Credentials
Verify the trader is legitimate. Ask for proof of insurance (public liability and employer's liability), relevant trade certifications, and check if they're registered with trade bodies like TrustMark, FMB, or NICEIC.
Review Past Work
Request references from previous customers and photos of completed projects. Check online reviews on Google, Checkatrade, or Trustpilot. A reputable trader will be happy to share their track record.
Get Everything in Writing
Insist on a detailed written contract covering the full scope of work, materials to be used, start and completion dates, total cost, and payment schedule. Never rely on verbal agreements alone.
Be Careful with Deposits
Never pay the full amount upfront. A reasonable deposit is typically 10-25% to cover initial materials. Pay the balance only upon satisfactory completion. Avoid cash payments where possible.
Understand Your Rights
Under the Consumer Rights Act 2015, work must be carried out with reasonable care and skill. If things go wrong, you have the right to request a repair, price reduction, or refund.
Agree Clear Timelines
Establish a realistic project timeline with key milestones. Include clauses for delays and ensure you're informed of any changes. Good communication throughout prevents misunderstandings.
Check Planning Requirements
For major works, confirm whether planning permission or building regulations approval is needed. The contractor should advise, but ultimately it's your responsibility as the homeowner.
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