LED Lighting Upgrade: The Cheapest EPC Improvement (Under £300)
Switching to LED lighting costs £100–£300 and adds 1–2 SAP points. The quickest, cheapest EPC improvement any landlord can make — often DIY.
The Simplest EPC Win
Replacing all light fittings with LED bulbs is the cheapest and easiest EPC improvement available. It typically costs £100–£300 depending on the number of fittings, adds 1–2 SAP points, and can be done in an afternoon without a tradesperson.
On its own, 1–2 SAP points may not seem significant. But for a property sitting just below the Band C threshold (SAP 67–68), this could be the measure that tips you over. And at this price point, there is no reason not to do it regardless.
What Counts for the EPC?
The EPC assessor records the percentage of fixed lighting outlets that have low-energy fittings. To get the maximum credit, 100% of fixed lighting should be LED. This includes:
- Ceiling pendants and flush fittings
- Recessed downlights
- Wall lights
- Under-cabinet kitchen lights
- Bathroom fittings
- External fixed lights (porch, security)
It does not include floor lamps, table lamps, or plug-in lights — these are not fixed fittings.
Cost Breakdown
| Item | Cost |
|---|---|
| LED GLS bulb (standard bayonet/screw) | £2 – £5 each |
| LED GU10 downlight | £3 – £6 each |
| LED integrated ceiling fitting | £10 – £25 each |
| Electrician (if converting non-standard fittings) | £50 – £150 |
| Typical property total | £100 – £300 |
If your property already has standard bayonet or screw fittings, you can simply swap the bulbs. If it has older halogen downlights, you may need to replace the transformers or fit LED-compatible ones.
Can You DIY It?
Yes — changing bulbs does not require an electrician. If you need to change light fittings (not just bulbs), technically this should be done by a qualified electrician under Part P of the Building Regulations, but in practice straightforward like-for-like fitting swaps are routinely done by landlords.
If you are doing a full rewire or adding new circuits, you must use a registered electrician.
No Grants Needed
At £100–£300 total, LED lighting does not need grant support. It pays for itself within months through reduced electricity consumption. LED bulbs last 15,000–25,000 hours compared to 1,000–2,000 for traditional bulbs, so you also save on replacement costs.
Combine with Other Quick Wins
LED lighting on its own is a marginal EPC improvement. Its real value is in combination with other low-cost measures:
| Quick Win Bundle | Combined Cost | Combined SAP Gain |
|---|---|---|
| LED lighting + loft insulation top-up | £400 – £900 | +4–7 points |
| LED + loft + heating controls | £600 – £1,400 | +5–10 points |
| LED + loft + draught proofing | £500 – £1,100 | +5–9 points |
For many Band D properties, this bundle of quick wins is enough to reach Band C without any major works.
Check your property on EPCFix to see if LED lighting is on your improvement list and how it combines with other measures to reach Band C.
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