Heat Pump Installer in Lewisham | ASHP & Solar PV, SE13

Heat Pump Installation in Lewisham: What You Need to Know

Heat pump installation in Lewisham is often a good option for houses and some larger owner-occupied homes, but SE13 still needs a serious survey because building types vary sharply across the area. Energy Saving Trust says a typical air source heat pump costs around £11,000 before grant support, so design quality and grant support both matter to project value.

Lewisham includes homes that are very workable for low-carbon heating, but also many flats and tighter conversions where the better answer may be solar only or a staged retrofit. The survey needs to separate the strong candidates from the weak ones early.

Is Your Lewisham Home Suitable for a Heat Pump?

Many Lewisham houses are suitable for a heat pump, while flats and tighter conversions are often less practical because ownership and equipment space are less clear. Nesta says 80% to 90% of UK homes already have enough insulation to run a heat pump, and in SE13 layout is often the more important question.

The strongest local candidates are usually:

1. Terraced or semi-detached houses with outside space.
2. Family homes with sensible cylinder options.
3. Homes with some roof potential for solar.

Lewisham Property Types at a Glance

For broader context, read our complete guide to heat pumps, our heat pump running cost guide, and our article on heat pump installer in Greenwich.

Planning Permission in Lewisham

Planning permission in Lewisham is often manageable for standard houses, but SE13 still needs careful unit siting because plot shapes, access, and neighbour positions vary. MCS reported more than 30,000 certified heat pump installations in the first half of 2025, and urban retrofit sites still benefit from proper planning at survey stage.

Many house projects may be possible under permitted development, but we confirm the property-specific route before final design work begins.

The BUS Grant in Lewisham: How to Claim £7,500

Lewisham homeowners may qualify for the BUS grant of £7,500 towards an air source heat pump, subject to eligibility, and the installer handles the application. GOV.UK confirms that qualifying air source heat pump systems remain eligible for £7,500 in England, which makes a substantial difference to the affordability of many SE13 projects.

Your property needs a valid EPC and no relevant outstanding insulation recommendations to qualify. Electromatic includes the grant application as part of the installation process.

Check your eligibility — free home survey →

You can also review our BUS grant guide and our heat pump cost guide.

ASHP + Solar: The Lewisham Combo

The ASHP and solar combination can work well in Lewisham where the property is a house with usable roof area and clear ownership. Energy Saving Trust says the average domestic solar system is around 3.5kWp, which is a practical benchmark for many suitable SE13 houses.

This route makes most sense when:

1. The property is owner-occupied.
2. The roof has usable solar space.
3. The owner wants to offset part of the heat pump’s electricity demand.

For more on combined-system planning, read our heat pump + solar combo guide, our solar panel savings guide, and our article on heat pump installer in Deptford.

Heat Pump Running Costs in Lewisham

Heat pump running costs in Lewisham depend on property heat loss, controls, and emitter sizing, but a properly designed system can still compare well with gas while lowering operational carbon. Using Ofgem April 2026 planning prices of 24.5p/kWh for electricity and 7.4p/kWh for gas, correct system design is the main variable.

*Based on Energy Saving Trust typical UK household data, Ofgem April 2026 prices (electricity 24.5p/kWh, gas 7.4p/kWh). Actual costs depend on property size, insulation, and energy usage.

How Electromatic Can Help Lewisham Homeowners

Electromatic is based in Sunbury-on-Thames, around 23 miles from Lewisham, so SE13 homeowners still get a nearby regional installer covering south-east London. MCS recorded more than 170,000 certified renewable installations in the first half of 2025, and the most reliable projects are usually the ones where suitability, grant paperwork, and system design are handled together.

Our process:

1. Free survey and BUS grant eligibility check.
2. Heat loss and layout review.
3. Fixed-price quotation.
4. Installation under MCS certification via our accredited umbrella partner.
5. Commissioning and handover.

We also cover Greenwich, Deptford, Peckham, and the wider SE13 area. Book your free home survey in Lewisham →

Call us: 07718 059 284 | Email: admin@electromatic.uk

Frequently Asked Questions — Heat Pumps in Lewisham

Lewisham homeowners usually ask whether houses are good candidates, whether solar is worth adding, and how the grant changes the budget. MCS data showing more than 30,000 certified heat pump installations in the first half of 2025 confirms that heat pumps are established, but not every property is equally suitable.

How much does a heat pump cost in Lewisham?

Typical suitable Lewisham projects often cost around £10,000-14,000 before the BUS grant. After the £7,500 grant, subject to eligibility, many homeowners land around £5,000-7,500 depending on layout and scope.

Can I install a heat pump in a Lewisham house?

Often yes. Houses with workable outside space and sensible internal layout are usually strong local candidates.

Do I need planning permission for a heat pump in Lewisham?

Usually not for many standard houses, but the property still needs a site-specific review before the route is assumed.

How long does a Lewisham heat pump installation take?

Most standard installations take 1-2 days on site, with the full project usually taking about 2-4 weeks from survey to install.

Is it worth combining solar with a heat pump in Lewisham?

Yes, especially in houses with usable roof area and owners who want lower long-term electricity imports.

The information in this article is for general guidance only and does not constitute financial, legal, or technical advice. Energy savings estimates are based on typical UK household data from the Energy Saving Trust and Ofgem (April 2026 price cap). Actual savings depend on your property type, insulation levels, energy usage patterns, and electricity tariff. The Boiler Upgrade Scheme (BUS) grant of £7,500 is subject to eligibility criteria set by Ofgem — not all properties qualify. Electromatic M&E Ltd operates under MCS certification via an accredited umbrella partner. All installations comply with Building Regulations Part L and MCS standards. E&OE.

Written by Electromatic M&E Ltd — ASHP & Solar installer, London & Surrey (electromatic.uk)

Last updated: April 2026 | Electromatic M&E Ltd, Company No. 13837345