New bi-fold doors for Cardiff homes
Property type drives the brief in Cardiff more than budget does. Edwardian and Victorian bay-fronted houses in Cathays and Roath, 1930s semis in Llanishen, modern builds in Pontprennau — and each one calls for a different bi-fold doors approach. We've quoted city professionals from Llanishen through to landlords near Cardiff Bay, Capital Business Park, and the spec is rarely identical twice. 10-year product, 2-year fit on every quote.
Free quote in Cardiff
Commercial premises, offices and managed sites
Buying bi-fold doors as commercial premises, offices and managed sites
This page covers commercial rather than domestic work. Access, out of hours working and keeping the premises trading through the installation are the constraints that shape the quote.
What this buyer actually needs from us
- Risk assessments and method statements supplied before mobilisation
- Working outside trading hours where the premises cannot close
- The new frame is stood in the reveal dry before any fixings go in — a final chance to catch a wrong-hand delivery.
- The internal cill is scribed with a coping saw against the reveal plaster, not butted flush with a caulk joint.
Local industrial estate and unit work in the surrounding business parks
Recent work near Cardiff
CF83 · May 2026New front door fittedRosac fitted our new composite door — beautiful finish, friendly lads and tidy from start to finish. House already feels warmer. Highly recommended.
CF37 · April 2026Full house of windowsHad every window in the house replaced. The team were punctual, polite and the quality is brilliant. Genuinely couldn't be happier.
CF63 · March 2026Back door & patio doorsReplaced our back door and patio doors. Great communication, fair price and excellent workmanship. Will be using them again for the windows.
- Heritage-friendly frame profiles in conservation streetsOur bi-fold doors address this with thermally broken aluminium leaves.
- Traffic noise on the A48 ringOur bi-fold doors address this with thermally broken aluminium leaves.
- Single-glazed bays losing heat in tall Victorian roomsOur bi-fold doors address this with thermally broken aluminium leaves.
Cardiff at a glance
- Council
- Cardiff
- Postcodes
- CF10, CF11, CF14, CF23, CF24, CF5
- Main route
- A48
- Nearest town
- Penarth (4 mi)
Capital city — everything from Edwardian conservation-area bays to glass-fronted Bay apartments.
How we build bi-fold doors
Structural opening surveyed for deflection, head track set straight to within 2mm, leaves hung and adjusted across multiple visits if needed.
- • thermally broken aluminium leaves
- • stainless steel running gear
- • 10-point shootbolt lock on the master leaf
- • low-iron toughened glass option
Guarantee: 10-year product, 2-year fit.
Bi-fold doors across Cardiff
- Cyncoed
- Llanishen
- Roath
- Cathays
- Penylan
- Whitchurch
- Pontprennau
- Rhiwbina
- Heath
- Grangetown
- Splott
- Canton
- Llandaff
- Radyr
- Gabalfa
- Ely
- Adamsdown
What we typically find on bi-fold doors surveys around here
- ·A previous fitter drilled through the outer frame chamber for the trickle vent — never fully sealed the drilling.
- ·The bathroom pane is patterned glass from the original build, and the pattern is no longer a current stock line.
- ·A previous fitter foam-filled the reveal gap directly against the frame, and the foam has now pushed the jamb inward.
- ·The georgian bar between panes on one unit has slipped off its top spacer and is sitting diagonally inside the sealed cavity.
- ·The internal locking cams on the multipoint have been ground down by a mismatched keep pattern.
- ·There is a permanent green algal streak below the sill where water is bypassing the drip groove.
- ·The cylinder on the front door still has the builder's key stamp, meaning it has never been changed since handover.
- ·The hinges are all dropped one notch from level, taking the sash out of square against the outer frame.
- ·The catch keep for the bathroom window has been packed out with a folded matchbox to make the sash lock.
- ·The top hinge on the front door has torn its middle screw out and been left to run on two fixings.
- ·The outer frame has moved fractionally over the years, dropping the bottom hinge screw pattern out of line.
- ·There is a hairline crack running diagonally from the top corner of one bathroom pane where the frame has twisted.
- ·The internal beads pop out with a chisel and a tap, but the external glazing gasket is bonded solidly to the frame.
- ·The window boards inside are chipboard, swollen at the edges from years of trickle condensation.
- ·The cill end-cap has fallen off and the cill chamber is now a home for insects.
- ·The frame drainage on a south-facing bathroom window is blocked with paint film from the exterior repaint.
Why residents are booking bi-fold doors right now
- ·The resident has been quoted for solar and does not want the roof work to happen before the windows do.
- ·The buyer wants the property to be quieter after 11pm — the street noise is fine, the bass from next door is not.
- ·The buyer wants the frames branded with the manufacturer's paperwork stapled to the frame chamber for the next owner.
- ·The owner has scaffolding booked for a re-render and wants the frames sequenced around the render trades.
- ·The owner is done reheating rooms every hour because the frames leak the heat straight back out again.
- ·The homeowner wants a warranty they can pass on to the next owner without a fee or a form.
- ·The homeowner is selling the property and only wants to replace what visibly holds the survey back.
- ·The owner is preparing the property for a rental switch and wants glazing to hit HMO fire-escape spec.
- ·The resident wants the letterbox to stop being a draught source without giving up daily post.
- ·The owner wants the whole property refurbished for a big family gathering nine weeks out — everything sequenced tightly.
- ·A recent break-in on the street has moved security up the priority list ahead of aesthetics.
- ·The resident wants the ground-floor windows to be genuinely secure — laminated inner pane, PAS24 hardware, real not marketed.
- ·The resident is moving elderly parents in downstairs and needs the front threshold to be wheelchair-usable.
- ·The buyer wants a genuine step-up in security, not a marketing claim — PAS24 tested, not PAS24 marketed.
- ·The owner is dealing with a partner who works nights and needs the bedroom acoustically watertight before summer.
- ·The resident is on a listed street and wants a front door that will pass Article 4 first time.
How our fitters actually do the work
- ·The reveal is brushed down and vacuumed before any sealant runs, so the bead adheres to substrate, not dust.
- ·Trickle vents are drilled through the outer frame with a bespoke jig — not freehand with a spade bit.
- ·The internal beads are numbered on removal so they return to the same corner they came from.
- ·The letterplate cowl is checked to swing free without touching the door face — a rubbing cowl marks the paint within weeks.
- ·The internal cill is scribed to the reveal, not just butted and caulked over the gap.
- ·The internal cill support is packed with hardwood the full depth of the cill, not just at the ends.
- ·The lead fitter leaves a handwritten note of anything the client should watch in the first month, not a printed generic checklist.
- ·The threshold ramp on an accessible door is set to a maximum 15mm rise, checked with a spirit-level lip.
- ·The multipoint hooks are lubed with the manufacturer's grease, not household oil that dries and gums.
- ·The site tidy happens twice per day, not once at the end, so brick dust doesn't track through the house.
- ·The old handles are offered to the client before being binned — sometimes a chrome D-handle finds a shed door life.
- ·Door thresholds are set with a spirit level along their full length and then re-checked with a straight edge.
- ·The bead-in tools are rubber-faced, not steel — a steel tool marks the profile within minutes.
- ·Ground protection sheet goes down before the old frame comes out — not after the mess starts.
- ·The frame is plumbed on two axes before the first fixing goes in — not one axis and then trusted.
- ·New frames sit on hardwood packers, not plastic offcuts — plastic creeps under load, timber does not.
FAQs — bi-fold doors in Cardiff
Can bi-fold doors handle heritage-friendly frame profiles in conservation streets?+
Directly, yes — designed for 20,000+ open-close cycles before the running gear needs servicing. That matters in Cardiff where heritage-friendly frame profiles in conservation streets is the single most common reason people call us.
Do you cover Penarth and Caerphilly as well?+
Yes — Penarth is roughly 4 miles from Cardiff, Caerphilly about 7. Same team, same prices, same guarantee.
Do you fit bi-fold doors across all of Cardiff?+
Yes — we work across every CF10 and CF11 and CF14 and CF23 and CF24 and CF5 postcode, from Cyncoed through to Llanishen, and out as far as Roath. 10 miles from base, A470 the whole way — Cardiff installs run as smoothly as our home patch.
How long does a bi-fold doors install take in a Cardiff property?+
1 day for a 3-leaf set onto a prepared opening, 2 with a new lintel. Most of the Edwardian and Victorian bay-fronted houses in Cathays and Roath we see in Cardiff fit our standard schedule with no surprises.
Will bi-fold doors suit the older Edwardian and Victorian bay-fronted houses in Cathays and Roath common around Cardiff?+
Anthracite leaves match the stone of Welsh garden walls; thermal break copes with the wet winters. We've installed dozens in Cyncoed and Llanishen alone.
Can you work outside our opening hours?+
Yes. Evening and weekend installation is common on trading premises. It carries a labour premium and that is shown as a separate line on the quotation.
What glass is required in a commercial setting?+
Toughened or laminated safety glass is required in critical locations such as doors, side panels and low level glazing. We specify it against the position rather than as a blanket upgrade.
Solve heritage-friendly frame profiles in conservation streets for good
Our bi-fold doors use stainless steel running gear to fix the root cause — not patch it.
Book a free surveyGet documentation with the quote in Cardiff
Insurance, risk assessment and method statement issued alongside the price so procurement has everything in one go. Bi-fold doors for Cardiff and the Cardiff Council area, 1 day for a 3-leaf set onto a prepared opening, 2 with a new lintel, with a written price inside 24 hours.
Summary — bi-fold doors in Cardiff
If you've been weighing up bi-fold doors for your Cardiff home, the next step is a free survey. Bring your address, we'll bring the samples, and you'll have a written quote in your inbox within a day. Most CF10 surveys are booked inside the same week. On bi-fold doors specifically: wanting to fold the back wall away without losing security or thermal performance, 1 day for a 3-leaf set onto a prepared opening, 2 with a new lintel, 10-year product, 2-year fit.
Faults we fix before recommending bi-fold doors
A sliding door that fights you is nearly always rollers and track debris, not a dead door.
French doors are a pair, so the fault is usually in how the two leaves meet rather than in either leaf on its own.
Most of the heat leaves through the roof and the frames, so that's where the money should go first.
Let's make your house feel more like home.
Fill in a few details and we'll come back within 24 hours with a clear quote — no callout fee, no pressure.