Blackwood full-house replacement — survey, supply & install
Blackwood sits 5 miles from Bargoed and 7 from Risca, and that's the patch this page covers. The full house window & door replacement we fit here use A+ uPVC or aluminium frames and argon-filled units, which is what holds up against large estate houses where a partial replacement leaves mismatched frames. The A4048 gives us clear access with a loaded van, and estate driveways here mean unloading is straightforward, so site visits and follow-ups don't drag.
10/10 on Checkatrade across Blackwood and Bargoed
Over 50 verified reviews from Caerphilly homeowners. 10-year product on every frame, 2-year fitting on the whole package, single point of contact.
- First generation double glazing from the 1980s that has misted across whole elevationsOur full-house replacement address this with A+ uPVC or aluminium frames.
- Damp valley air that finds any failed seal or gap in the pointingOur full-house replacement address this with A+ uPVC or aluminium frames.
- Large estate houses where a partial replacement leaves mismatched framesOur full-house replacement address this with A+ uPVC or aluminium frames.
How we build full-house replacement
Front-to-back schedule: front elevation first, sides, then rear; one team on site each day; rubbish cleared nightly.
- • A+ uPVC or aluminium frames
- • argon-filled units
- • matched hardware finishes throughout
- • composite front door included
Guarantee: 10-year product on every frame, 2-year fitting on the whole package, single point of contact.
Why Blackwood homeowners choose us
- 1Free site survey
- 2Written quote within 24h
- 3Frames built to spec
- 4Single-day install
- 5Snag visit at 1 week
Recent work near Blackwood
NP4 · February 2026Composite door installFrom quote to fitting, faultless. The new door looks stunning and the security upgrade is night and day. Thanks Rosac!
NP12 · December 2025New windows throughoutBrilliant from start to finish. Quote was honest, install was tidy and the house feels so much warmer. Top job.
Owner occupiers doing the whole property in one go
Written for owner occupiers doing the whole property in one go
The reader here has decided the whole property needs doing and is now comparing installers rather than products. That means the useful information is programme length, who is actually on site, and what the written quote covers opening by opening.
What we build into the quote for you
- Matching frame colour and hardware finish across the whole property
- An itemised written price so single openings can be added or dropped
- The bay-corner post gets a structural bracket into masonry, not a token fixing into the outer frame.
- The frame reinforcement is chosen for the wind load exposure of the elevation, not the smallest steel that fits.
Full public liability insurance and a written two year fitting guarantee on the package
What we typically find on full-house replacement surveys around here
- ·The letterplate has a hinged internal flap that has snapped off and is currently held in place with masking tape.
- ·The letterplate flap spring has gone slack and the flap now hangs open in a light breeze.
- ·The transom bar has a live crack in the plastic, opened up by summer expansion cycles.
- ·A cracked pane has been temporarily patched with clear tape and left for six months.
- ·One patio-door interlock has a bent alignment lug — the door jams shut half of the time.
- ·The internal locking cams on the multipoint have been ground down by a mismatched keep pattern.
- ·The top hinge on the front door has torn its middle screw out and been left to run on two fixings.
- ·The multipoint gearbox on the front door still throws, but the hooks miss the keeps by 2mm on the middle throw.
- ·The cill drainage caps on a north-facing elevation are frozen in place with layered moss.
- ·The gap under the front door has been carpet-strip filled from inside — the exterior weather bar is missing.
- ·The friction hinge on a bedroom window has one detent — it either opens fully or slams shut on any breeze.
- ·The front-door hinge screws are 25mm chipboard fixings, not the manufacturer's 60mm hinge screws.
- ·The internal glazing bead across the top of the bay lifts out completely with fingernail pressure.
- ·The internal beadwork has been painted so many times the mitres are unrecognisable.
- ·The georgian bar between panes on one unit has slipped off its top spacer and is sitting diagonally inside the sealed cavity.
- ·The top vent has been kept permanently closed with a wooden shim wedged inside the frame.
Why residents are booking full-house replacement right now
- ·The resident wants the sliding door to open with a fingertip after ten years of use, not two hands after two.
- ·The owner is buying and wants to time the frame swap for the week between exchange and moving in.
- ·The resident is expecting an elderly parent to move in and needs a door that opens without a shove.
- ·The buyer wants a specific coloured composite front door because they saw it three doors down and it made the street.
- ·The resident is done with condensation-driven mould at the sill line every February.
- ·The homeowner has quotes for a new kitchen next spring and wants the patio doors in before those trades arrive.
- ·The buyer is running a small business from the home office and wants the kerb to say established and settled.
- ·The buyer is done with the sound of the frames rattling in a gale.
- ·The homeowner has quotes from two national companies and wants a local one to be honest about the same job.
- ·The buyer has just moved in and is fixing everything the vendor's homebuyer report flagged, in priority order.
- ·The resident is fitting a home cinema in the front room and needs the windows to be a full acoustic upgrade, not a nominal one.
- ·The homeowner is preparing the property for a smart-home installation and wants sensor pockets designed into the reveals.
- ·The buyer wants the frames branded with the manufacturer's paperwork stapled to the frame chamber for the next owner.
- ·The homeowner wants the front porch to feel enclosed in winter and open in summer.
- ·The resident wants the ground-floor windows to be genuinely secure — laminated inner pane, PAS24 hardware, real not marketed.
- ·The buyer wants the frames to still look right in twenty years, not just at handover.
How our fitters actually do the work
- ·The internal architrave is coped rather than mitred where the reveal wall is out of true.
- ·The multipoint keeps get a smear of grease inside the pocket before the door is closed for the first time.
- ·Trickle vents are drilled through the outer frame with a bespoke jig — not freehand with a spade bit.
- ·New frames sit on hardwood packers, not plastic offcuts — plastic creeps under load, timber does not.
- ·The bead-in tools are rubber-faced, not steel — a steel tool marks the profile within minutes.
- ·The frame reinforcing steel is confirmed inside the top rail before the transom fixing is chosen.
- ·The frame reinforcement is chosen for the wind load exposure of the elevation, not the smallest steel that fits.
- ·The wall around the frame is Hoovered before the client sees the room again — brick dust ages a first impression.
- ·The window board is scribed to the plaster line, not left with a caulked gap that shows in raking light.
- ·The client is walked through the operation of every lock, every vent, and every restraint before the crew leaves.
- ·The trim between the frame and the plaster line goes on last, after the sealant has set and been proven leak-tight.
- ·The screws through the outer frame go into pilot-drilled masonry, not driven with hammer action alone.
- ·Every silicone bead is tooled with the correct radius spatula, not smoothed with a wet finger only.
- ·The frame perimeter sealant is a low-modulus polymer where the substrate is going to move — plain silicone otherwise.
- ·The multipoint hooks are lubed with the manufacturer's grease, not household oil that dries and gums.
- ·The door slab gets a full inspection before hanging — dents, delamination, edge integrity, all noted before fixings go through.
FAQs — full-house replacement in Blackwood
Can full-house replacement handle first generation double glazing from the 1980s that has misted across whole elevations?+
Directly, yes — whole property reset to a-rated thermal performance for a 20-year horizon. That matters in Blackwood where first generation double glazing from the 1980s that has misted across whole elevations is the single most common reason people call us.
Do you do commercial full-house replacement for sites near Oakdale Business Park?+
Yes. We've worked across Oakdale Business Park and Penmaen Industrial Estate, supplying the same A+ uPVC or aluminium frames build we use on residential. Commercial quotes include site access notes and out-of-hours options.
What colours and finishes are available for full-house replacement?+
one consistent foil/RAL across every elevation; front door, back door and patio doors as a coordinated set. We bring physical samples to the quote so you can see them against your a broad mix in real light.
Will full-house replacement suit the older a broad mix common around Blackwood?+
We sequence the install so terraced neighbours and parked cars aren't blocked all week — a real concern on Welsh valley streets. We've installed dozens in Cefn Fforest and Pontllanfraith alone.
How long does a full-house replacement install take in a Blackwood property?+
Typically 2–4 days depending on count, with a final snag visit a week later. Most of the a broad mix we see in Blackwood fit our standard schedule with no surprises.
Can I stage a whole house replacement over two visits?+
Yes. Front elevation and front door first, rear later is a common split. It costs slightly more overall than doing everything in one visit and we will show you the difference in writing before you decide.
Will the house be secure overnight during a full replacement?+
Yes. Only one elevation is open at a time and every opening we start is finished, glazed and locked before we leave for the day.
Plan the work around your household in Blackwood
Tell us the rooms you cannot lose and we will sequence the elevations around them. Most properties are finished in two to four days. Full-house replacement for Blackwood and the Caerphilly County Borough Council area, typically 2–4 days depending on count, with a final snag visit a week later, with a written price inside 24 hours.
Summary — full-house replacement in Blackwood
From Cefn Fforest to Oakdale, our patch is small enough that we'll see your finished full-house replacement install ten times a year. That keeps us honest around Blackwood. Get in touch when you're ready. On full-house replacement specifically: the false economy of replacing one tired window at a time while the others keep failing, typically 2–4 days depending on count, with a final snag visit a week later, 10-year product on every frame, 2-year fitting on the whole package, single point of contact.
Faults we fix before recommending full-house replacement
A draught is usually a compression problem — gasket, hinge or seal — long before it's a reason to replace the window.
Rot in the bottom rail is repairable; rot that has reached the joints and the cill usually isn't worth chasing.
Yellowing is cosmetic and treatable; splits at the welded corners are structural and aren't.
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.