Northampton · West Northamptonshire
CP12 Cost in Northampton: What Landlords Pay
CP12 pricing is one of the most competitive trades markets in Northampton — which cuts both ways for landlords.
Indicative ranges (2026, not quotes)
| Scenario | Typical range |
|---|---|
| CP12 only (1–2 appliances) | £60–£100 |
| CP12 + boiler service bundle | £110–£180 |
| Additional appliance (fire, cooker) | +£10–£25 each |
| Remobilised/late-notice visits | +premium |
These are UK public ranges consistent with Northampton pricing surveys (HaMuch and similar guides put Northampton certificates from roughly £48–£90). Get the figure in writing before the visit.
What drives the price up
- Number of appliances — each gas appliance in the let (boiler, fire, cooker) is checked and charged.
- Access failures — aborted visits are usually charged; diary access properly (see landlord duties).
- Bundled management — letting agents routinely add £20–£50 administration on top of the engineer's invoice.
Value playbook for Northampton portfolios
1. Bundle service + CP12 in one visit — saves a call-out fee per property per year. 2. Batch your certificates — landlords with several streets (Kingsley, Semilong, Abington clusters) can negotiate a portfolio rate by giving engineers adjacent appointments on the same day. 3. Diary at month 10 — late booking is the top cause of paying remobilisation premiums and lapsing compliance.
A £70 certificate is the cheapest compliance in your entire landlord cost stack. Set against an unlimited fine for breach, it is not a line item to optimise — access and diary discipline are where portfolios fail.