J Hacking Heating & Plumbing Specialist Ltd
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Frequently asked questions

Can't find your answer? Call us on 07493 779662 — we're happy to help.

James from J Hacking holding a completed checklist
What areas do you cover?

We're based in Darwen and predominantly cover Darwen and Blackburn. We also regularly work across the Ribble Valley and Chorley, and surrounding areas. If you're unsure whether we cover your location, just get in touch and we'll be happy to advise.

Are you Gas Safe registered?

Yes — Gas Safe registration number 181652. You can check any engineer's registration on the official Gas Safe Register website, and we're happy to show our ID card on arrival.

What makes you different?

We focus on honest advice, safe workmanship and quality you can trust. We won't recommend unnecessary work or push replacements where they're not needed. As a Gas Safe registered, family-run business, we take pride in doing jobs properly and building long-term relationships with our customers through reliability, clear communication and fair pricing.

How often should my boiler be serviced?

Once a year. An annual service keeps your boiler safe and efficient, catches small problems early, and is required by most manufacturers to keep the warranty valid. Booking early never shortens your cover — your renewal stays on the same date each year.

I'm a landlord — what do I legally need?

A gas safety check on every gas appliance every 12 months, with a CP12 certificate given to your tenants. We issue certificates digitally the same day and remind you before they're due, so a certificate never lapses.

What's your pricing?

We believe in clear, upfront pricing with no hidden costs. Boiler services and gas safety checks start from £80. Boiler replacements start from £1,850, depending on the boiler type and your property — every new boiler quote is a fixed price after a free survey. Service plans start from as little as £10 a month. Every home is different, so we're always happy to talk through your options and give honest advice before any work is carried out.

How do the service plans work?

You pay a small monthly amount by direct debit and get your annual boiler service included, call-outs with no call-out fee, discounts on parts and priority booking. Plans start at £10/month — see the Service Plans page for what each level includes.

How can I pay?

Bank transfer or instant bank payment from your invoice — we send you a secure payment link so you can pay in a couple of taps. Cash is fine too on the day.

Do you charge call-out fees?

Service plan members get call-outs with no fee (the first hour of labour or a full diagnosis is included, depending on your plan). For everyone else we agree a clear price before any work starts — no surprises.