What does concept to keys mean?

One point of contact from first sketch to final clean: survey, design, fixed price, building control, build and glazing - all our responsibility.

DREAM KITCHEN, DELIVERED

The Extension That Changes Everything.

Q: How long does a kitchen extension take?

Typically 12 to 16 weeks on site, with design and approvals taking 8 to 12 weeks before that. You get a written programme up front.

Rear kitchen extensions with rooflights, bifolds and sliding doors — designed, glazed and fully project-managed by one trusted team.

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Builders & installers - supply-only pricing available, trade welcome.

WALLS OF GLASS

Cook With a Garden View.

Flood your new space with light through slim aluminium bifolds, sliding doors and rooflights — the glazing that makes the extension.

Price My Extension Explore Glazing Options

ONE TEAM, START TO FINISH

From First Sketch to First Dinner.

Survey, design advice, building regs and installation handled for you — with clear itemised pricing and a 10-year guarantee.

Book My Free Consultation See How It Works

DREAM KITCHEN, DELIVERED

The Extension That Changes Everything.

Rear kitchen extensions with rooflights, bifolds and sliding doors — designed, glazed and fully project-managed by one trusted team.

Get My Free Quote

Builders & installers - supply-only pricing available, trade welcome.

Free, No-Obligation

Get Your Free Quote Today

Prefer to chat? Call 0330 043 6212 or WhatsApp +44 7538 781235.

Your details

Full name *

Phone Number *

Email *

Postcode *

First line of address *

Your choices - pick one per row

Home owner or builder / installer?

Homeowner

Builder / Installer

Supply only or supply & fit?

Supply only

Supply & fit

Double glazed or Triple glazed?

Double

Triple

Property - residential or commercial?

Residential

Commercial

Aluminium or uPVC?

Aluminium

uPVC

Colour & thermal preferences

SIZE: Width

size: depth

Size : Height

I confirm i have deducted 10mm from the Width and Height for Tolerance

RAL colour preference (frames)

Handle & hinge colour

Tick any that apply - we will factor them into the quote

PAS 24 security

Independently tested against break-in.

Trickle vents

Building-regs compliant background ventilation.

ekey fingerprint lock

Keyless entry - we fit the dline biometric system.

I need it now — priority service

Tick this and we'll put extra staff on your order and work overtime to get it fabricated and delivered as fast as possible. A small priority fee applies.

Book a free site visit

Yes, book me inNo visit needed

Preferred date & time

DD / MM / YYYY

Or pick a free slot in our live calendar:

Calendly booking page

(syncs with Google Calendar).

When does the project start?

Planning a start dateIt's already in progress

Planned start date

DD / MM / YYYY

Anything else we should know?

Send photos of the opening

Scan the QR code with your phone camera, then send photos and videos on WhatsApp — it's the fastest way to price your project.

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Buyer's guide

planning a kitchen extension in 2026

A kitchen extension is the biggest home project most families ever take on. Done right it transforms daily life and adds real value to the property. Done badly it is a nightmare of delays, arguments and cost overruns. This guide walks through the decisions in the order you need to make them.

How long does a kitchen extension take?

A typical single-storey rear extension runs 12 to 16 weeks on site. Design and approvals before that take 8 to 12 weeks depending on your council. We give you a written programme up front and staged payments that follow the build, never run ahead of it.

Why glazing-led design pays off

Most extensions are designed first and glazed as an afterthought — then the client discovers the spans need steel they didn't budget. We design the other way round: decide the glass moments first (the bifold wall, the lantern, the picture window), then build the structure to carry them. The result is more light for the same money.

Why extend rather than move

Moving house in the UK in 2026 costs more than most people expect. Stamp duty on a £600,000 home is around £20,000. Estate agent fees, legal fees, removals, decoration - you are looking at £40,000 to £60,000 of costs before you have put a single nail in a wall. And the whole process takes six months of stress. A 5 m by 6 m rear kitchen extension typically costs £60,000 to £120,000 built, takes twelve weeks, and adds more to the value than you spent.

Permitted development or full planning?

Single-storey rear extensions up to 4 m deep on detached houses and 3 m on semis usually fall under permitted development - no planning permission needed, just a lawful-development certificate. Two-storey extensions, very large single-storey extensions, and anything in a conservation area or on a listed building need full planning. We advise you on day one which route is right for your site and we handle the paperwork.

Open-plan kitchen-diner or broken-plan?

The open-plan kitchen-diner ruled the last decade - knock every wall out, one huge space. In 2026 the smart money is on broken-plan. Same big extension but with an internal glass bifold or sliding door between the kitchen and the rest of the space. Open when you entertain, closed when you work from home, and ideal for households with kids on school calls.

Roof style

Because we are a glazing company first, we plan extensions around the glass. A 5 m bifold to the garden. A 2 m by 1 m flat roof lantern above the island. Full-height picture windows on the side walls. Big glass makes a modest-sized extension feel twice as big and floods every corner with daylight. It also improves the view from inside the rest of the house.

Heating and cooling

A flat roof with zinc or EPDM finish is the modern default - it is cheaper, it hides in the skyline and it lets you fit a big rooflight. A pitched roof with a gable suits traditional extensions and can include a vaulted ceiling for drama. A green roof with plants on top is on-trend for biophilic design and adds extra insulation. All options are Part L compliant as standard.

Budget planning

Part L 2022 requires new extensions to have wall U-values of 0.18 W/m²K, floor 0.13, and roof 0.15. We always meet or beat these. Underfloor heating is the usual choice - even heat, clear walls, cheap to run with a heat pump. A heat pump works brilliantly in a well-insulated new extension and often qualifies for the Boiler Upgrade Scheme grant.

Timeline

Build costs in the Midlands in 2026 run from around £2,200 to £3,200 per square metre fully finished for a typical single-storey rear extension. That includes groundworks, structural steel, brickwork, roofing, plastering, electrics, plumbing, kitchen units, flooring and decorating. A 5 m by 6 m extension is £66,000 to £96,000. Add 10 percent contingency to every build.

One team

Planning to completion is usually 6 to 9 months. Design and drawings take 4 to 8 weeks. Planning or lawful-development certificate adds 8 to 10 weeks. Build itself is typically 10 to 16 weeks on site depending on size and complexity. We give you a fixed programme on day one and hold ourselves to it.

Book a free consultation

The big advantage of working with us for the full build is you have a single point of accountability. The glass and the brickwork and the plastering and the decorating are all run by the same team. If something needs tweaking, you call one number. No blame-ping-pong between trades.

Glass-led design

Use the form at the top to book a free on-site consultation. We come out, measure, sketch options with you on the iPad, show you the portfolio of recent builds, and give you a written budget estimate on the day. No obligation, no sales pressure.

What does "concept to keys" actually mean?

One point of contact from first sketch to final clean. We survey, design, price fixed, handle building control, build with our vetted partner builders, and glaze it ourselves. You never referee between a builder and a window company — if it involves your extension, it is our job.

Bifold Door FAQs

Everything You Need to Know About Our Kitchen Extensions

Do I need planning permission?

Many rear extensions fall under permitted development — we confirm for your address before design starts.

What does a kitchen extension cost?

Fixed-price quote after the design visit; budget bands discussed at the first meeting.

Can you match my existing brick?

Yes — brick matching is part of the design stage.

Handles, Hinges & Locks

Premium hardware, colour-matched to every frame

Each door and window is finished with market-leading hardware multi-point locking, TS007 3-star anti-snap cylinders, stainless-steel running gear, concealed hinges, and a full range of lever, pull and key-operated handles. Hover any handle to see it enlarge. Mix and match to suit your home or project.

Lever - Anthracite

Smooth ergonomic lever in Anthracite Grey (RAL 7016M) - our most-specified door handle.

Lever - Matt Black

Matt Black lever for contemporary, architectural looks. Pairs with any frame colour.

Lever - White

Bright White lever for classic, clean interiors and traditional homes.

Lever - Polished Chrome

Polished Chrome lever - a timeless shine that suits modern and classic doors alike.

Lever - Satin Silver

Satin Silver lever for a soft brushed finish that hides fingerprints.

Lever - Brushed Gold

Brushed Gold lever for a warm, premium statement. Gorgeous with Anthracite frames.

Quadra - Anthracite

Square-edge contemporary lever in Anthracite Grey - clean architectural lines.

Quadra - Matte Black

Matte Black square-edge lever - the ultimate modern door handle.

Quadra - Matte White

Matte White square-edge lever - fresh, bright, contemporary.

Quadra - Polished Chrome

Polished Chrome square-edge lever for a mirror finish that lifts any door.

Quadra - Satin Silver

Satin Silver square-edge - subtle brushed sheen, easy care.

Quadra - Brushed Gold

Brushed Gold square-edge lever - on-trend warm metal tone.

Window - Anthracite

Espagnolette window handle in Anthracite Grey. Key-lockable option.

Window - Black

Black inline window handle - sleek and timeless. Child-safety key option.

Window - White

White window handle for traditional and modern casements alike.

Window - Polished Chrome

Polished Chrome window handle - a classic finish for any room.

Window - Satin Silver

Satin Silver window handle - a calm, practical, brushed finish.

Window - Brushed Gold

Brushed Gold window handle - a beautiful accent on heritage windows.

Lift & Turn - White

White lift-and-turn handle - simple, strong, classic.

Lift & Turn - Chrome

Chrome lift-and-turn handle - glossy, durable, easy clean.

Lift & Turn - Satin Silver

Satin Silver lift-and-turn handle - brushed finish for a modern look.

Lift & Turn - Brushed Gold

Brushed Gold lift-and-turn handle - a warm luxury statement.

Lift & Turn - Anthracite

Heavy-duty lift-and-turn handle for patio sliders and bifold traffic leaves.

Lift & Turn — Black

Black lift-and-turn handle - gym-grade multi-point gearing.

Lift & Turn — Jet Black

Deep matt black lift-and-turn for sliders and bifold traffic leaves.

Lift & Turn — Brushed Gold

Warm metallic statement handle for premium sliding doors.

Lift & Turn - Satin black

Soft-sheen black that hides fingerprints on busy doors.

Lift & Turn — Anthracite Grey

Colour-matched to RAL 7016 frames for a seamless look.

Rondo keyed handle

Child-safe keyed window handle - ideal for upstairs bedrooms and rentals.

Pull handle suite

Matching pull handle and escutcheon for entrance doors - bold or minimalist.

Concealed 3D hinges

Hidden when closed — adjustable in three planes for a perfect reveal for life.

Multi-point locking

Anti-snap TS007 3-star cylinders, hook bolts and deadlocks on every door as standard.

Colour Range

Over 200 colours — powder-coated, textured & gloss

Hover over any swatch to see its RAL code. We finish every frame to order — matt, gloss, metallic or textured. Can't see your shade? Any RAL is available.

Anthracite Grey

RAL 7016M

Deep Black

RAL 9005T

HIPCA White

RAL 9910HG

Pastel Green

RAL 6019

Agate Grey

RAL 7038

Jet Black

RAL 9005M

Slate Grey

RAL 7015

Basalt Grey

RAL 7012

Light Grey

RAL 7035

Silver Grey

RAL 7001

Fir Green

RAL 6009

Moss Green

RAL 6005

Chocolate Brown

RAL 8017

Oxide Red

RAL 3009

Sapphire Blue

RAL 5003

Steel Blue

RAL 5011

Cream

RAL 9001

Sand Beige

RAL 1011

Anthracite Textured

RAL 7016 Matt T

Jet Black Textured

RAL 9005 T

Brushed Silver (Tex)

DB 701 T

Pewter (Textured)

RAL 7037 T

Brushed Bronze

DB 703 T

Olive Bronze

DB 604 T

Gold Metallic

AY 1050

Brushed Aluminium

AY 2050

Graphite Pearl

AY 900 M

Any RAL or BS colour available to order — just ask. Dual-colour (different inside / outside) supported on all ranges.

Explore the Range

More ways we transform homes & builds

Bifold Doors

Slim aluminium folding doors, huge glass spans, engineered to glide for decades. Supply or fit.

Panels

2–7 leaves

Rating

A–B WER

Security

PAS 24

Explore bifold doors

Front Doors & Panel Doors

Bank-vault secure, optional fingerprint entry, 120+ panel designs to make it yours.

Designs

120+

Entry

keyless option

Security

PAS 24

Explore front doors & panel doors

Aluminium Windows

Slim modern casements, any configuration, up to 25% more glass than uPVC.

Glass

+25% vs uPVC

Rating

A–B WER

Security

PAS 24

Explore aluminium windows

Heritage Doors & Windows

Authentic astragal bars and steel-look frames — period character, modern warmth.

Style

steel-look

Bars

astragal

Security

PAS 24

Explore heritage doors & windows

Glass Internal Doors

Bifold, sliding or pivot internal glazing — open-plan when you want it, quiet when you don’t.

Styles

bifold/slide/pivot

Frames

slim steel-look

Light

fully shared

Explore glass internal doors

Replacement Conservatory Roof

Tiled, glass or hybrid roofs — turn the hottest-coldest room in the house into the favourite one.

Options

tiled/glass/hybrid

Comfort

all-season

Fitted

In days

Explore replacement conservatory roof

Aluminium Sliding Doors

Panoramic sliding panes up to 3m tall — fewer, larger panels and fingertip-smooth glide.

Height

up to 3m

Panels

2–6

Security

PAS 24

Explore aluminium sliding doors

Flush Windows

Completely flat external face — sash level with frame for a pure minimalist elevation.

Face

dead flat

Rating

A–B WER

Security

PAS 24

Explore flush windows

Decorative Glazing

Bevels, leads, bars and textured glass — privacy levels and patterns to make every pane yours.

Designs

wide library

Privacy

5 levels

Use

doors & windows

Explore decorative glazing

Stepped Windows

Sculpted stepped profiles create layered shadow lines and real architectural presence.

Profile

stepped

Rating

A–B WER

Security

PAS 24

Explore stepped windows

UPVC Flush and Stepped Systems

Flush-fit uPVC casements and residential doors — joinery looks, woodgrain colours, sensible prices.

Material

uPVC

Finish

woodgrain options

Locking

multi-point

Explore UPVC Flush and Stepped Systems

GWS Hybrid

Deliberate mixed spec: aluminium at the front, uPVC behind — same colour, smaller bill.

Mix

alu + uPVC

Match

same colour

Saving

thousands

Explore GWS hybrid

Smart (IoT) Doors & Windows

Fingerprint entry, auto-locking and phone alerts — the connected front door, done properly.

Entry

fingerprint

Locking

automatic

Alerts

to your phone

Explore smart (iot) doors & windows