Window Wise

What Window Wise does

Window Wise (legal entity: Window Wise Company Ltd) is a privately held UK window and door installation company founded in 1980 and headquartered in Chesham, Buckinghamshire. The company supplies and installs premium aluminium and uPVC windows, doors, and rooflights for residential homeowners across Chesham, Buckinghamshire, and surrounding areas of Hertfordshire, with a service footprint covering roughly 19 towns including Amersham, Beaconsfield, Watford, Tring, St Albans, Hemel Hempstead, and Harpenden. Its product portfolio comprises five window types (casement, flush casement, heritage, vertical sliding sash, tilt and turn), six door types (front doors, heritage steel-appearance doors, bi-folding, French, internal, panoramic sliding), and three rooflight categories (lantern, flat, bespoke glass), supplemented by repair services and a trade supply-only division. All installations are completed by the company's own fitting teams and accredited through FENSA registration (number 11785), with CPA insurance-backed guarantees and Checkatrade membership providing consumer-facing compliance and trust signals.

The underlying technology consists of standard aluminium and uPVC window, door, and rooflight systems featuring thermally efficient profiles, double and triple glazing, and multi-point locking mechanisms - physical building products sourced from external manufacturers rather than proprietary Window Wise IP. The business operates on a one-time project-based revenue model: customers obtain free no-obligation quotations via the website, phone, or showroom visit, with installation carried out by in-house teams. Pricing is not publicly disclosed and is determined per quote. Go-to-market is sales-led, driven by local SEO targeting specific town-level search terms, a 2,500 sq ft factory showroom in Chesham, Instagram content, and Checkatrade referral traffic. A separate trade supply channel offers supply-only products to other installers with defined 7-15 working day lead times by finish type.

The customer base is exclusively residential individual homeowners and a nascent trade buyer segment; no enterprise or commercial customers were identified. The company has 11-50 employees, is family/private ownership with no disclosed institutional investment or funding rounds, and has operated continuously under the Window Wise name since incorporation.

Name

Window Wise

Legal name

Window Wise Company Ltd

Website

https://window-wise.co.uk

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

11–50 employees

Short description

Window Wise is a UK window and door installer founded in 1980, supplying and fitting aluminium and uPVC windows, doors, and rooflights for residential homeowners across Buckinghamshire and Hertfordshire from its Chesham headquarters and showroom.

Ownership category

akta.pro rank

Product category

Window and Door Installation Services

NAICS

Glass and Glazing Contractors (23815)

SIC

Services-Miscellaneous Repair Services (7600)

akta.pro primary industry

Window Replacement (Residential) (HSAPAJAA)

akta.pro secondary industries

Custom Window & Door Fabrication & Replacement (HSAPAJAI), Window Repair & Adjustment (Sashes, Balances, Hardware) (HSAGAEAB)

Keywords

• Window installation
• Door installation
• Double glazing
• Rooflight systems
• UPVC windows

Headquarters

HQ city

Chesham

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Window and Door Sales & Installation: One-time sale and professional installation of aluminium and uPVC windows, doors, and rooflights for residential homeowners. Revenue generated per project with no recurring component. Includes repair services for existing installations.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Window Wise supplies and installs premium aluminium and uPVC windows, doors, and rooflights for homeowners across Chesham, Buckinghamshire and surrounding areas. The company also offers repair services for existing installations and a trade supply-only service for other installers. Since 1980, the company has delivered professionally fitted, energy-efficient products combining product supply with its own installation teams.

Product overview

Window Wise is a window and door installation company operating since 1980 that supplies and installs premium aluminium windows, uPVC windows, doors, and rooflights across Chesham, Buckinghamshire and surrounding areas. Their product portfolio includes five window types (Casement Windows, Flush Casement Windows, Heritage Windows, Vertical Sliding Sash Windows, and Tilt & Turn Windows), six door types (Front Doors, Heritage Steel Appearance Doors, Bi-Folding Doors, French Doors, Internal Doors, and Panoramic Sliding Doors), and three rooflight categories (Lantern Roofs, Flat Roofs, and Bespoke Glass Roofs). The company operates as a single unified offering combining product supply with professional installation, supported by repair services and a trade supply-only service for installers. Installation is backed by FENSA approval and CPA insurance-backed guarantees.

Differentiator

Problem solved

Functional benefit

Products and services

• Casement Windows Available in aluminium and PVCu, the casement window system is the most popular style offering various opening designs and functions with high-security multipoint locking systems. It is manufactured and professionally installed for residential homeowners in Chesham, Buckinghamshire and surrounding areas.
• Flush Casement Windows PVCu flush casement systems offer traditional timber appearance with flat, clean profile lines, also available in aluminium with sleeker, narrower profiles. Designed for residential homeowners seeking a traditional aesthetic with modern performance.
• Heritage Windows Manufactured in aluminium with steel appearance design, featuring slim profile sightlines, decorative glazing bar designs, and colour options including white, Anthracite Grey (7016M), Black (9005M), and bespoke RAL powder-coated finishes. Designed for residential homeowners wanting heritage-style windows.
• Vertical Sliding Sash Windows PVCu vertical sliding sash windows with traditional timber window features including mechanical jointed profiles, run through sash horns, and key locking twist catches. Designed for residential homeowners seeking traditional sash window aesthetics.
• Tilt & Turn Windows Dual-operational window system manufactured in PVCu or aluminium allowing the window to tilt inwards at the top for ventilation or open completely inwards. Designed for residential homeowners seeking flexible ventilation and cleaning access.
• Front Doors Range including Composite PVC with 48mm solid timber core and 19 Coolskin finishes, Composite Aluminium with powder-coated finish and polyamide thermal barrier, and premium Aluminium with triple-glazed units. Designed for residential homeowners seeking secure, energy-efficient front doors.
• Heritage Steel Appearance Doors Steel appearance door system with slim profile sightlines, available in single and double doors with multipoint locking systems and energy-efficient glass units. Designed for residential homeowners seeking heritage-style steel-look doors.
• Bi-Folding Doors Aluminium bi-folding doors available in various configurations with sleek profiles in numerous colour finishes, energy-efficient double or triple sealed units, and high-security multipoint locking mechanisms. Designed for residential homeowners seeking open-plan living transitions.
• French Doors Available in PVCu, aluminium, and flush casement profiles with decorative glazing designs, multipoint locking mechanisms, and toughened double-glazed units. Designed for residential homeowners seeking traditional patio door solutions.
• Internal Doors Aluminium steel-appearance internal doors with slimline profiles in white, Anthracite Grey, Black, or bespoke RAL finishes, configurable as single doors, double door sets, and matching side panels. Designed for residential homeowners seeking modern internal door solutions.
• Panoramic Sliding Doors Aluminium thermally efficient sliding door system with large glazed panels in 2-pane, 3-pane, or 4-pane options, featuring multi-roller mechanisms for smooth operation. Designed for residential homeowners seeking large glazed openings.
• Lantern Roofs 4-pane contemporary range lanterns manufactured in slim aluminium profiles, available in 10 standard sizes and selection of colours including white, Anthracite Grey, or black, with solar glazing option. Designed for residential homeowners seeking additional natural light from above.
• Flat Roofs Modern flat roof glass system available in 3 standard sizes and bespoke sizes on request with self-cleaning glass options and acoustic glazing. Designed for residential homeowners seeking flat roof glazing.
• Bespoke Glass Roofs Tailor-made glass roofs with thermally broken aluminium roof bars and highly efficient insulating toughened glass units with optional Solar Blue or Solar Neutral glazing. Designed for residential homeowners seeking custom rooflight solutions.
• Repair Services Repair services for windows and doors including broken latches, locks, hinges, replacement of misted glass units, handles, locking mechanisms, and cat/dog flap installation. Designed for existing residential customers needing after-sales repairs.
• Trade Supply Service Supply-only and delivery service for trade customers offering standard casement PVC and aluminium windows and doors with specific lead times by colour finish (PVC: 7-10 working days; aluminium: 10-15 working days). Design forms and survey sheets available for download. Designed for trade installers and builders.

Named customers6 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Anglian Home Improvements: National UK home improvement incumbent offering windows, doors, conservatories, and rooflights via in-home sales and own installation teams. Comparable product offering and direct-to-consumer sales motion, though at significantly larger scale and with broader geographic coverage than Window Wise.
• Everest Home Improvements: Established national installer of windows, doors, and home improvement products with own fitting teams. Comparable vertically integrated sales-and-installation model and product portfolio, though operating UK-wide rather than within a regional catchment.

Emerging players

• Masterframe Windows: Specialist UK manufacturer of heritage-style PVCu vertical sliding sash windows, a category Window Wise carries. Comparable niche product overlap though positioned upstream to installer partners rather than as a consumer-facing regional installer.
• Origin Global: UK manufacturer of premium aluminium windows, bi-folding doors, and sliding doors with a partner installer network. Comparable in aluminium product focus though operating as a manufacturer-supplier upstream of installers like Window Wise rather than direct consumer-facing.

Direct peers

• Zenith Staybrite Windows: Regional window and door installation specialist operating across parts of southern England with a comparable showroom-and-installation model. Closely aligned in scale and go-to-market approach to Window Wise.
• Safestyle UK: One of the UK's largest dedicated replacement window and door installers serving residential customers through a sales-led, regional-team model. Highly comparable to Window Wise in product range (PVC windows, composite doors) though operating at materially greater national scale.

Regional players

• CR Smith: Scottish-based window, door, and conservatory manufacturer-installer with own showrooms and fitting teams. Comparable vertically integrated model and product range, but operates primarily in Scotland rather than Window Wise's South East catchment.
• Clearview Home Improvements: UK window and conservatory installer with regional coverage and a similar combination of showroom sales plus own installation. Comparable in operating model though with broader regional reach.
• Leekes Windows & Conservatories: South Wales and West of England home improvements installer offering windows, doors, and conservatories with own fitting teams and showroom retail. Similar showroom-led model to Window Wise but geographically non-overlapping.

Others

• Rehau Windows UK: Major PVCu and polymer profile supplier whose window and door systems are installed by UK trade fabricators and installers. Comparable technology baseline for Window Wise's PVCu product range but operates upstream as a supplier rather than as an installer competitor.

Market position

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/window_wise
• Facebookfacebook.com/window.wise.5
• LinkedInlinkedin.com/company/window-wise

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Window Wise