Rockdoor
Rockdoor is a UK manufacturer of premium composite entrance doors, founded in 1996, selling exclusively through a 200+ Trusted Installer network to UK homeowners. Its aluminium-reinforced composite construction and proprietary S-Glaze bonded glazing differentiate it on security and thermal performance.
- Company typePrivate
- Founded1996
- HeadquartersBlackburn, United Kingdom
- Headcount101–250
- GTM typeB2C
- OfferingHardware or Manufacturing
What Rockdoor does
Rockdoor is a UK-based manufacturer of premium composite entrance doors, founded in 1996 and headquartered in Blackburn, Lancashire. The company designs, engineers, and produces a comprehensive range of composite doors — front, back, double, French, stable, and cottage configurations — and markets itself as the original UK composite door manufacturer, claiming over one million cumulative installations across roughly 30 years of operation. Its product portfolio spans 14 colour collections, modern and traditional style families, and bespoke glass designs, all manufactured at a single Lancashire facility and sold under one brand.
The company's core technology centres on an engineered composite construction combining a 360-degree aluminium-reinforced inner frame, high-density polyurethane foam core, and PVC-U/aluminium outer skins, marketed as 60% stronger than standard composite doors and 35% stronger than typical GRP doors. Its proprietary S-Glaze technology permanently bonds glazing between the door skins so glass is structurally integrated rather than fitted as a clip-in cassette, eliminating external removal points and draught paths. Security features include German-engineered multi-point locking with TS007 3-star anti-snap cylinders (with a £2,000 lock-snapping guarantee), optional internal steel security mesh, and Secured by Design accreditation — the company claims to be the first UK manufacturer to achieve this for French and double doors. Thermal performance is delivered through Q-Lon gaskets, brush pile seals, and the S-Glaze construction, with BFRC testing yielding A-rated energy efficiency.
Rockdoor operates a transactional, one-time-sale business model with bespoke, quote-based pricing delivered exclusively through its network of 200+ vetted Trusted Installers. Installers handle surveying, quoting, and professional fitting; Rockdoor supports the funnel through digital channels (the 3D Door Designer visualisation tool, content marketing, Trustpilot reviews, and social media) and trade infrastructure (Rockdoor Connect installer portal). Headcount of 101–250 employees and a premium positioning above standard GRP and uPVC doors place it as a mid-market specialist in the UK fenestration sector. The company is privately held, generates no disclosed recurring revenue, and operates solely within the United Kingdom.
Rockdoor firmographics
Firmographics- Name
- Rockdoor
- Legal name
- Rockdoor Ltd.
- Website
- https://rockdoor.com
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Rockdoor is a UK manufacturer of premium composite entrance doors, founded in 1996, selling exclusively through a 200+ Trusted Installer network to UK homeowners. Its aluminium-reinforced composite construction and proprietary S-Glaze bonded glazing differentiate it on security and thermal performance.
- Ownership category
- akta.pro rank
Rockdoor industry classification
Industry- Product category
- Composite Doors
- NAICS
- Metal Window and Door Manufacturing (332321)
- SIC
- Metal Doors, Sash, Frames, Moldings & Trim (3442)
- akta.pro primary industry
- Exterior Doors (IMADAIAA)
- akta.pro secondary industries
- Exterior Door Replacement (Entry/Patio/French) (HSAPAJAB), Architectural Hardware & Door Controls (Hinges, Locks, Closers, Panic Devices) (IMADAIAI), Weatherstripping, Thresholds & Door/Window Seals (IMADAIAL)
Keywords
Where Rockdoor is headquartered
LocationHeadquarters
- HQ city
- Blackburn
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Rockdoor business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D
Revenue model
- Composite Door Sales: Rockdoor generates revenue through one-time sales of premium composite doors. Each door is made-to-measure and fully customisable with choices of style, colour, glazing, and hardware. Pricing varies by specification and is provided through the Trusted Installer network. No recurring revenue streams are apparent; the business model is transactional with premium unit pricing.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Premium made-to-measure composite doors with full customisation |
Go-to-market motion2 records
Distribution channels1 record
Marketing channels10 records
Rockdoor product offering
Product offeringCore offering
Rockdoor manufactures made-to-measure premium composite entrance doors for UK residential properties, combining aluminium-reinforced frames, high-density polyurethane foam cores, and S-Glaze bonded glazing into bespoke finished doors. The doors are sold exclusively through a national network of 200+ Trusted Installers who survey, quote, and fit the doors for homeowners.
Product overview
Rockdoor is a UK manufacturer of premium composite entrance doors, established in 1996. The company produces a comprehensive range of doors across multiple categories: Front Doors, Back Doors, Double Doors, French Doors, Stable Doors, and Cottage Doors. Door styles are divided into Modern (Hudson, Vermont, Vogue, Manhattan, Aspen, Classic, Dune Vision, Dune Retreat, Indiana) and Traditional (Byron, Jacobean, Warwick, Astoria, Newark, Illinois, Colonial, Regency, Carolina, Tennessee, Windsor, Portland, Kentucky, Georgia, Montana). The product portfolio includes 14 colour options across Trending, Modern, Classic, and Wood collections, plus extensive customised glass designs. Rockdoor differentiates through proprietary S-Glaze technology, aluminium-reinforced construction, and a made-to-measure manufacturing approach. The company supports customers through a nationwide network of 200+ Trusted Installers and offers a 3D Door Designer tool for visualisation.
Differentiator
Problem solved
Functional benefit
Products and services
- Front Doors Made-to-measure composite front entrance doors for UK residential properties, manufactured in Lancashire with S-Glaze bonded glazing, aluminium-reinforced frames, and PU foam cores; supplied through 200+ Trusted Installers to homeowners.
- Back Doors Made-to-measure composite rear entrance doors for UK residential properties, using the same aluminium-reinforced frame and S-Glaze construction as front doors but configured for back-of-house installation; supplied via Trusted Installers.
- Double Doors Composite double door sets for UK residential properties, providing wider entrances using Rockdoor's S-Glaze glazing and reinforced frame construction; supplied made-to-measure through Trusted Installers.
- French Doors Composite French door sets for UK residential properties, combining the appearance of paired French doors with the security and thermal performance of Rockdoor's composite construction; supplied made-to-measure through Trusted Installers.
- Stable Doors Composite stable doors for UK residential properties, featuring a split opening design where the top and bottom halves can be operated independently, built with Rockdoor's reinforced composite construction; supplied made-to-measure through Trusted Installers.
- Cottage Doors Composite cottage-style doors for UK residential properties, offering a traditional cottage aesthetic with the security, insulation, and low maintenance of Rockdoor's composite construction; supplied made-to-measure through Trusted Installers.
- Modern Door Styles A range of contemporary composite door designs from Rockdoor, featuring clean lines and modern glazing patterns, available made-to-measure and supplied through Trusted Installers to homeowners seeking a contemporary aesthetic.
- Traditional Door Styles A range of classic and traditional composite door designs from Rockdoor, with heritage detailing and conventional proportions, available made-to-measure and supplied through Trusted Installers to homeowners seeking a period or classic aesthetic.
- Byron Composite Door A specific new composite door design from Rockdoor featuring the company's S-Glaze glazing, aluminium-reinforced frame, and PU foam core in the Byron styling; manufactured made-to-measure and supplied through the Trusted Installer network to UK homeowners.
Quantifiable outcome
- 60% stronger than standard composite doors
- +5 more outcomes
Companies that use Rockdoor
Customer profileNamed customers1 record
Segments1 record
Ideal customer profiles2 records
Rockdoor technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature9 records
Rockdoor partnerships and signals
Strategic signalScale indicators7 records
Recent moves5 records
Expansion highlights3 records
Rockdoor competitors and assessment
Company assessmentBroad incumbents
- Anglian Home Improvements: Major UK home improvements company offering doors (including composite) alongside windows and conservatories. Comparable customer base of UK homeowners replacing entrance doors.
- JELD-WEN (UK): Global door and window manufacturer with a UK product range including composite, timber and GRP doors. Overlaps with Rockdoor in entrance-door category but spans a much wider product portfolio and geography.
- Everest: Established UK home-improvement retailer selling windows, doors (including composite) and related products through a national direct-sales and installer motion. Broad incumbent overlapping in composite front-door category.
- Safestyle UK: Large UK home-improvement installer (uPVC windows and doors) overlapping with Rockdoor at the consumer front-door replacement category but operating at much larger scale and broader product scope.
Direct peers
- Force 8 Doors: UK composite door manufacturer with a made-to-measure range and installer distribution. Comparable product, channel, and target homeowner customer.
- Solidor: UK-based manufacturer of premium composite doors with a comparable made-to-measure range, similar colour/glazing customisation, and overlapping Trusted Installer network. Often positioned head-to-head with Rockdoor in retailer comparison content.
- Distinction Doors: UK supplier of composite door slabs and doorsets to fabricators and installers. Closely comparable product (composite entrance doors) and a similar route-to-market through trade installers.
- Endurance Doors: UK composite door manufacturer offering solid timber-core and foam-core doors via a national installer network. Directly comparable in product mix (front/back/French/stable) and channel model to Rockdoor.
- Permadoor: UK composite entrance door maker selling via installer/dealer partners with comparable styles, colours, and security positioning.
Others
- Yale (door hardware): Leading lock and hardware brand whose TS007 3-star cylinders compete with Rockdoor's integrated locking system as a substitute specification across the UK composite door market. Adjacent ecosystem participant rather than direct channel competitor.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
Rockdoor social profiles
Digital presenceRockdoor compliance and trust
Trust signalCompliance6 records
Rockdoor financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rockdoor leadership team
Management profileNumber of profiles
Rockdoor funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rockdoor M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Rockdoor
What does Rockdoor do?
Rockdoor manufactures made-to-measure premium composite entrance doors for UK residential properties, combining aluminium-reinforced frames, high-density polyurethane foam cores, and S-Glaze bonded glazing into bespoke finished doors. The doors are sold exclusively through a national network of 200+ Trusted Installers who survey, quote, and fit the doors for homeowners.
Is Rockdoor a public or private company?
Rockdoor is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Rockdoor founded?
Rockdoor was founded in 1996. It employs 101 to 250 people.
Where is Rockdoor based?
Rockdoor is headquartered in Blackburn, United Kingdom, in the Europe region.
How does Rockdoor make money?
One revenue line is on record: composite Door Sales.
Who are Rockdoor's main competitors?
Broad incumbents on record are Anglian Home Improvements, JELD-WEN (UK), Everest and Safestyle UK. Direct peers are Force 8 Doors, Solidor, Distinction Doors, Endurance Doors and Permadoor. Yale (door hardware) is listed as an others.
Does Rockdoor have an API?
No public API is recorded for Rockdoor.
What industry is Rockdoor in?
Rockdoor's product category is Composite Doors. Its primary akta.pro industry code is IMADAIAA, Exterior Doors, with a secondary code of HSAPAJAB, Exterior Door Replacement (Entry/Patio/French). Its NAICS code is 332321 and its SIC code is 3442.