AJB Joinery & Building
Joinery and building — garage and loft conversions, extensions, renovations, kitchens, doors, floors and stairs.
Horsforth, Leeds and West Yorkshire
Listed on its own published details · checked 11 Sept 2026
5 listed
Builders & extensions covering Horsforth
B B Building Services (Yorkshire)
FENSA approvedLoft and garage conversions, extensions, structural alterations, kitchens and bathrooms, window and door replacement, and bespoke joinery.
Horsforth and north-west Leeds
FENSA approved installer of windows and doors — check it yourself · checked 11 Sept 2026
Bondmor Building Services
Builders on the Woodside Trading Estate, working since 2015 and now specialising in insulated concrete formwork.
Yorkshire, from Low Lane, Horsforth
Works alongside ICF Bondmor from the same unit.
Listed on its own published details · checked 11 Sept 2026
Helpfix
Whole-house, kitchen and bathroom refurbishment, plus plumbing, electrical, joinery, plastering and decorating on a design-and-build basis.
Leeds and West Yorkshire
Registered at Lister House on Lister Hill, a shared office building.
Listed on its own published details · checked 11 Sept 2026
ICF Bondmor
Passivhaus TrustInsulated concrete formwork construction — design, procurement and installation. Formed in 2024 by merging Bondmor Building Services with ICF Building Solutions.
From Low Lane, Horsforth
Listed in the Passivhaus Trust directory — check it yourself · checked 11 Sept 2026
Listed because each one could be traced to a primary source on the date shown. That is a check on who they are, not a recommendation — it says nothing about the quality of anyone's work. Use the questions below before you hire.
Where you stand
What the rules say
There is no licence to be a builder. What is regulated is the work: building control approval for structural changes, and the gas, electrical and window elements, each with their own scheme.
How to check
Check the company exists and is active on Companies House — look at how long it has traded, whether accounts are overdue, and whether it is close to being struck off. Check waste carrier registration if they are removing rubble. Then check the specialists separately: Gas Safe for the boiler, the electrical register for the wiring.
Open Companies House, and the waste carrier register →
What to ask for
Ask who is handling building control, and get it in writing. Ask which of the trades they subcontract and check those separately.
Worth knowing. A brand-new company with a director who has had several dissolved companies is a pattern worth noticing. Companies House shows this for free.
Other trades