What Sureseal Windows does

Sureseal Windows is a privately held UK home-improvement retailer and installer based in Garston, Liverpool, supplying and fitting UPVC and aluminium windows, doors, and conservatories to residential homeowners across Liverpool and the North West of England. The company was established in 1995 (one secondary source dates founding to 2004) and operates from a single showroom at 195-199 St Mary's Road, with a field sales model in which a representative conducts on-site measurements and delivers personalised quotes. Its product portfolio spans composite doors (including a recently launched Sleek Skin variant), bi-fold, patio and French doors, UPVC and aluminium windows in casement, sash, and tilt-and-turn formats, double/triple/secondary glazing options, and warm roof conservatory conversions.

The underlying technology is conventional fenestration rather than proprietary R&D: Sureseal sources profiles and systems from established UK manufacturers — Eurocell, Granada, Inliten/Profile22 (Camden Group) for glazing, and Ultraframe for conservatory roofing — and assembles Kitemark-certified, NAPIT-approved installations marketed at up to A++ energy efficiency with low-E glass, gas-filled cavities, and multi-point locking. A 10-year product guarantee and an in-house NAPIT-approved installation team with reported 30+ years of combined experience constitute the principal operational differentiators.

The business model is direct-to-consumer, project-based, and quote-driven: revenue is generated through one-time installation contracts rather than recurring subscriptions, with customers acquired via freephone, website enquiry, showroom visit, or an online composite door designer (the only product line advertised as delivered nationwide). Marketing is concentrated on the company website, Facebook, Twitter/X, and a blog, supplemented by Google Maps and SEO for local discovery. Pricing is not publicly disclosed; all sales are initiated through quote requests and closed via on-site measurement. Customer segments are predominantly individual residential homeowners, with a small commercial/hospitality tail exemplified by Solomon's Bar. No public funding, M&A activity, or parent-company relationships are disclosed in the available material.

Name

Sureseal Windows

Legal name

Sureseal Windows

Website

https://suresealwindows.co.uk

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

1–10 employees

Short description

Sureseal Windows is a privately held Liverpool-based installer supplying and fitting UPVC and aluminium windows, doors, and warm roof conservatories for residential homeowners across the North West of England, with a showroom, field sales, and online door designer.

Ownership category

akta.pro rank

Product category

Window and Door Installation Services

NAICS

Glass and Glazing Contractors (23815)

akta.pro primary industry

Windows (IMADAIAC)

akta.pro secondary industries

Curtains, Blinds & Window Treatment Installation (HSAGAHAC), Windows, Doors & Millwork Distribution (CRAOAFAI)

Keywords

• UPVC window installation
• Composite door supply
• Triple glazing solutions
• Warm roof conservatories
• Home improvement services

Headquarters

HQ city

Garston

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Window Sales and Installation: One-time purchase and professional installation of UPVC and aluminium windows including double glazing, triple glazing, sash windows, casement windows, and tilt & turn windows. Products are manufactured to order and fitted by company's own installation team.
2. Door Sales and Installation: One-time purchase and installation of composite doors, bi-fold doors, patio doors, French doors, and RockDoors. Includes online door designer tool for custom composite door design.
3. Conservatory Services: Supply and installation of warm roof conservatories using Ultraframe roofing systems. Includes conversion of existing conservatories and new installations.
4. Professional Installation Services: Full installation services provided by NAPIT-approved installers, including on-site measurement, professional fitting, and cleanup after installation.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Sureseal Windows supplies and installs UPVC and aluminium windows, doors, conservatories, and double/triple/secondary glazing solutions for residential properties across Liverpool and the North West of England. Products are sourced from leading UK manufacturers (Eurocell, Granada, Inliten, Profile22, Ultraframe), assembled to order, and professionally fitted by the company's own NAPIT-approved installation team. All installations are backed by a 10-year guarantee with up to A++ energy efficiency ratings.

Product overview

Sureseal Windows is a specialist supplier and installer of UPVC security windows, doors, and conservatories serving Liverpool and the North West. Their product portfolio consists of four main categories: doors (Composite Doors including the Sleek Skin variant, Bi-Fold/Multi-Fold Doors, Patio Doors, French Doors), windows (UPVC Windows, Aluminium Windows, Sash Windows, Casement Windows, Tilt & Turn Windows), glazing options (Double Glazing, Triple Glazing, Secondary Glazing), and conservatories (Warm Roof Conservatories). The offering is complemented by add-on features such as Integral Blinds and an online Design Your Own Door tool. All products are available with up to A++ energy ratings and backed by a 10-year guarantee.

Differentiator

Problem solved

Functional benefit

Products and services

• Composite Doors Composite doors made from a combination of materials including a solid timber core and glass-reinforced plastic (GRP) outer skin, offering superior strength, durability, weather resistance, and enhanced security with multi-point locking systems. Designed for residential homeowners seeking improved home security and curb appeal.
• Sleek Skin Composite Door A premium composite door variant featuring an industry-first smooth finish with over 250 colour combinations inside and out, 48mm solid timber core, advanced secure locking system, and PAS24:2016 compliant security with 1.4 W/m²K u-Value. Targeted at homeowners seeking a distinctive contemporary aesthetic for home security and style.
• Bi-Fold Doors Folding door systems consisting of multiple panels that fold and stack against each other, creating wide openings with large glass panels for natural light and seamless indoor-outdoor connectivity. Suitable for homeowners seeking to merge indoor and outdoor living spaces.
• Patio Doors In-line sliding patio doors that maximise enjoyment of outdoor spaces while maintaining a safe and warm indoor environment, featuring sliding or hinged opening mechanisms with double-glazed safety glass. Designed for residential properties connecting indoor and outdoor areas.
• French Doors A pair of hinged doors featuring multiple glass panels designed to create wide openings with seamless transition between indoor and outdoor areas, available with double-glazed safety glass. Suited to residential homes seeking traditional-style access to gardens or patios.
• UPVC Windows Windows crafted from UPVC material, highly resistant to warping, rotting, and fading, offering durability, low maintenance, and exceptional thermal efficiency. Available in multiple opening styles and finishes for residential homes.
• Aluminium Windows Windows constructed from aluminium offering durability, energy efficiency, security, and modern aesthetics with slimline profiles. Available in heritage-style and contemporary finishes, including for commercial venues such as bars and restaurants.
• Sash Windows Timeless sliding windows available in timber and UPVC, renowned for architectural elegance with traditional charm. Suited to period properties and homeowners seeking classic window aesthetics.
• Casement Windows Versatile windows with side hinges that open fully, providing excellent ventilation and unobstructed views suitable for various home styles. The most common UPVC window format for UK residential properties.
• Tilt & Turn Windows Windows with dual-opening mechanism offering tilt positioning for controlled ventilation and full opening for easy cleaning access. Suited to upper-storey residential applications where safe ventilation and external cleaning access are priorities.
• Double Glazing Energy-efficient glazing upgrade consisting of two glass panes sealed together with an insulating barrier, reducing heat loss by up to 65% and providing up to 80% noise reduction. Offered as a glazing specification across Sureseal's window range for residential homeowners seeking improved thermal and acoustic performance.
• Triple Glazing Advanced glazing with three panes of glass and gas-filled spaces (Krypton or Argon), featuring low-E glass coatings (Pilkington K Glass or Saint Gobain Planitherm), warm-edge spacer bar technology, and thermal break technology. Provides virtually no heat loss and superior sound reduction for residential homeowners.
• Secondary Glazing Slimline windows discreetly installed on the interior of existing windows to increase acoustic and thermal insulation, offering up to 80% noise reduction and 65% heat loss reduction with 28mm double-glazed sealed units. Bespoke aluminium construction suited to period properties and listed buildings.
• Warm Roof Conservatories Conservatory supply, installation, and conversion service replacing traditional polycarbonate or glass roofing with fully insulated solid roofing systems using Ultraframe technology. Features insulation layers, structural framework, and weatherproof covering for year-round usability. Targeted at homeowners with existing or new conservatories.
• Professional Window and Door Installation Service Full installation service provided by Sureseal's NAPIT-approved in-house installation team, including on-site measurement by a field sales representative, professional fitting, and post-installation cleanup. Bundled with all window, door, and conservatory sales.

Quantifiable outcome

• Heat loss reduction of up to 65% with double glazing
• +5 more outcomes

Named customers5 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Six partnerships are on record, tiered core.

• EurocellcoreTechnology or IntegrationDouble and triple glazing supplier. Eurocell is a leading UK manufacturer of PVC building products, providing UPVC window systems that meet high quality and energy efficiency standards.
• GranadacoreTechnology or IntegrationSupplier of double glazing products. Granada is a glazing manufacturer providing quality window and door solutions for residential applications.
• InlitencoreTechnology or IntegrationSpecialist supplier of energy-efficient window frames featuring internal chamber technology for superior thermal performance. Used in triple glazing applications.
• Profile22coreTechnology or IntegrationUPVC window system supplier providing profile systems for window manufacturing. Profile22 offers reliable, energy-efficient window solutions.
• Camden GroupcoreTechnology or IntegrationParent company of Inliten window systems. Camden Group manufactures high-performance window and door systems for the UK market.
• UltraframecoreTechnology or IntegrationLeading manufacturer of conservatory roofing systems. Ultraframe provides the structural framework and roofing technology used in Sureseal's warm roof conservatory installations, ensuring exceptional quality and durability.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Market position

Weaknesses1 record

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/sureseal_window
• Facebookfacebook.com/SuresealWind
• LinkedInlinkedin.com/company/sureseal-windows

Compliance1 record

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 Sureseal Windows