Yorkshire's smarter choice for plumbing, heating and cooling.
Direct-employed engineers, Worcester Bosch and Vaillant accredited, fixed prices. Same-day repair where we can, routine bookings about a week ahead.
4.8★ Trustpilot (400+)4.7★ Google (200+)Gas Safe #623525Worcester & Vaillant accredited
Book in three taps
What do you need today?
Not on the list? All heating ·Repairs & servicing ·Plumbing ·Bathrooms
Ten direct-employed BASI engineers. Never a sub-contractor in your home. Meet the team →
A day at BASI
Extraordinary service, every day.
A note from the founder
“We turn up. We tell you the price. We do the job properly. We come back if we got it wrong.”
That has been the BASI rule since I left British Gas in 1990 and started this from a unit on Leeds Road. Thirty-six years on, my son Jas runs it with me and every engineer on every van is a full-time BASI employee. If you have ever been let down by a heating firm, we are the answer to that. Give us a try.
Kultar Singh, founder
Why BASI
We've earned this reputation the boring way.
Year after year, doing the job properly, and showing up when other firms have stopped answering the phone. More onwhy BASI is different.
- 01Fixed-price quote, best price first time, no surprises
- 02Survey done by an experienced heating installer, not a salesman
- 03Only full-time uniformed engineers, never sub-contractors
- 044.8★ on Trustpilot and 4.7★ on Google, 600+ reviews
- 05Floors and furniture protected, engineers explain every step
- 06Engineers bring own vacuum and wipes, we leave it spotless
- 07One knowledgeable customer-care advisor, start to finish
Yes, we do bathrooms too
Full bathrooms, by our own fitters.
Tanny Singh surveys, our multi-trade bathroom team fits. Plumbing, tiling, electrics, plastering, the lot. No project-managed sub-contractors. One firm, start to finish.
Annual cover
Stop thinking about your boiler.
Smart Care from £20/mo.
Annual service, breakdown cover, parts and labour. No call-centre, no excess. Direct debit, cancel anytime.
Request Smart Care →- Worcester Bosch Accredited Installer
- Vaillant Advance Installer
- Gas Safe Register#623525
- Trustpilot 4.8★400+ reviews
- Google 4.7★200+ reviews
4.8★ on Trustpilot · 4.7★ on Google
What Yorkshire homeowners say.
Replaced our 25-year-old boiler in a single day. Tidy, polite, on the dot. Couldn't fault them.
Quoted fixed-price, no surprises. The engineer explained every step. Brilliant from start to finish.
Came out same day when our heating packed in mid-winter. Absolute lifesavers.
Used BASI for years for our annual service. Always punctual, always thorough.
Family-run, Yorkshire through and through. You can tell they actually care.
New Vaillant, 10-year warranty, finance sorted in a phone call. Smoothest install we have had.
Rated 4.8★ from 400+ reviews onTrustpilot and 4.7★ from 200+ onGoogle. Read morecustomer reviews from across Yorkshire.
BASI at a glance
- Established
- Family-run since 1990
- Gas Safe
- Registered #623525
- Trustpilot
- 4.8★ from 405 reviews
- 4.7★ from 205 reviews
- Accredited
- Worcester Bosch & Vaillant
- Pricing
- Fixed, from £80, no call-out fee
Where we work
Yorkshire-based, your-town-local.
Bradford head office, BASI engineers across BD, LS, WF, HD, HX and HG every working day. Same fixed price in every town, no postcode surcharge.
Ready when you are
Heating gone? Pick up the phone.
Office open 9am to 5pm, Monday to Friday. 24/7 emergency line for existing cover plan customers. A real BASI person picks up.