Name

Mitchell & Dickinson

Legal name

Mitchell and Dickinson Limited

Website

https://mitchellanddickinson.co.uk

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Heritage Building Insulation and Restoration Services

NAICS

Glass and Glazing Contractors (23815)

akta.pro primary industry

Specialty Glazing (Acoustic, Blast, Bullet-Resistant, Smart/Electrochromic) (IMADAHAL)

akta.pro secondary industry

Exterior Insulation & Weatherproofing (House Wrap, Air/Water Barriers) (HSAPAKAK)

Keywords

• Heritage insulation services
• Secondary glazing installation
• Listed building retrofit
• Draught proofing services
• Natural insulation materials

Headquarters

HQ city

Bideford

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Insulation Installation and Restoration Services: Project-based revenue combining bespoke insulation installation (CosyGlazing secondary glazing, draught proofing, loft/ceiling/underfloor insulation) with restoration services (window/door restoration, re-engineering of sash windows). Fixed Price Quotation provided following Quotation Survey, with deposit payment required. Restoration Estimate provided separately for carpentry/joinery work, subject to variation.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Mitchell & Dickinson provides integrated insulation and ventilation services for period and listed UK properties, anchored by its proprietary CosyGlazing secondary glazing system. Offerings include full/loft/underfloor insulation using natural breathable materials, draught proofing, vacuum glazing, window and door restoration, heritage shutters, and ventilation solutions. Services are delivered through whole-house surveys followed by fixed-price quotations and on-site installation by an in-house trained craft team.

Product overview

Mitchell & Dickinson offers an integrated suite of insulation and restoration services for period and listed properties. The core offering centres on CosyGlazing, their proprietary secondary glazing system using plexiglass with magnetic tape installation, complemented by natural insulation materials (sheep's wool, wood fibre boards, lime plaster), draught proofing, window restoration, and ventilation solutions. Services are delivered through a whole-house approach with tailored surveys and recommendations. The portfolio includes secondary glazing, vacuum glazing, full/loft/underfloor insulation, heritage shutters, and professional consultancy services for architects and estate owners.

Differentiator

Problem solved

Functional benefit

Brands

• CosyGlazing: The company's unique secondary glazing system involving the installation of plexiglass using magnetic tapes over existing glass on doors or windows to provide insulation similar to double glazing.

Products and services

• CosyGlazing Secondary Glazing System Proprietary, removable secondary glazing installed over existing glass using plexiglass and magnetic tapes, achieving a U-value of 1.7. Designed for period and listed properties where standard double glazing is not permitted.
• Secondary Glazing Internal secondary window pane installation service that improves thermal performance while preserving the original character of period windows; available with UV protection options.
• Vacuum Glazing High-performance glazing solution using vacuum technology to deliver superior thermal efficiency in heritage applications where secondary glazing is not appropriate. Requires Listed Building Consent.
• Draught Proofing Sealing system using durable rubber seals, routed-in brushes, and concealed-brush beading for sash windows to reduce draughts by up to 70% in period properties.
• Full Insulation Whole-property insulation service for period homes using natural materials including sheep's wool, wood fibre boards, and lime plaster, designed to be breathable and reversible.
• Ceiling and Loft Insulation Loft and roof insulation using breathable natural fibres including sheep's wool, typically installed to 270mm depth to reduce heat loss by approximately 25-30%.
• Underfloor Insulation Insulation between floor joists using natural sheep's wool to prevent heat loss through floors while maintaining breathability in heritage buildings.
• Window and Door Restoration Repair and refurbishment of wooden and sash windows using traditional joinery, reclaimed timbers (pitch pine, sustainably grown oak), epoxy resin compounds, and reglazing services.
• Heritage Shutters Three shutter options for period and listed homes designed to preserve historic character while providing insulation and light control.
• Whole House Survey Comprehensive assessment evaluating thermal performance, humidity patterns, existing insulation, air movement, and risk of overheating to create tailored recommendations for period properties. Available from £450.
• Air Quality and Ventilation Ventilation solutions that remove excess moisture, stabilise humidity, and prevent overheating, designed to work in tandem with integrated insulation in heritage buildings.
• Advice and Consultancy Expert guidance including Listed Building Consent advisory services and energy efficiency recommendations for period properties, including £350 and £550 application fees for individual homeowners.
• Service Visits Ongoing maintenance and support visits for CosyGlazed and draught proofed installations to ensure long-term performance and customer satisfaction.

Quantifiable outcome

• U-value of 1.7 achieved by CosyGlazing secondary glazing, compared to 5.5 for traditional single glazing and 1.6 for standard double glazing
• +4 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core.

• Guild of Master CraftsmencoreStrategic or Co-development PartnerGuild of Master Craftsmen membership demonstrates commitment to quality craftsmanship standards in heritage insulation and restoration work.
• ConstructionlinecoreStrategic or Co-development PartnerBronze member of Constructionline, a UK government certification scheme for construction suppliers, demonstrating supply chain compliance and quality assurance.
• Carbon SavvycoreStrategic or Co-development PartnerCarbon Savvy certification partner, demonstrating carbon reduction expertise and environmental responsibility in heritage insulation projects.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Selectaglaze: The UK's leading secondary glazing manufacturer and installer, focused on heritage, listed and acoustic applications. Closest direct competitor to Mitchell & Dickinson's CosyGlazing and secondary glazing service, with overlapping product, customer and regulatory dynamics.
• The Sash Window Workshop: UK sash window restoration, draught proofing and secondary glazing specialist. Direct peer in heritage window solutions with similar survey-led, fixed-quote GTM and an overlapping South-East customer base.
• Ventrolla: UK specialist in sash window renovation, draught proofing and secondary glazing for period and listed properties. Direct peer — competes for the same heritage homeowners, offers overlapping draught proofing and secondary glazing, and shares the listed-building regulatory constraint.
• Zenith Staybright: UK secondary glazing manufacturer and installer serving residential and commercial customers. Direct peer in the secondary glazing product category, though less heritage-specialized than Mitchell & Dickinson.

Broad incumbents

• Anglian Home Improvements: UK's largest home improvements group (windows, doors, conservatories, insulation). A broad incumbent that overlaps on insulation and window-related services for period homes, but does not specialize in the listed/breathable-materials niche.
• Crittall Windows: Heritage UK steel window and door manufacturer with a strong listed-building presence. Broad incumbent in heritage fenestration that competes for adjacent specification rather than for direct installation work.
• Everest Home Improvements: UK national home improvements incumbent with a strong window, door and insulation portfolio. Broad incumbent — competes for the same retrofit spend but lacks heritage specialization and the reversible/breathable material approach.

Emerging players

• Ty-Mawr Lime: Welsh manufacturer and supplier of lime plasters, hemp-lime and natural insulation products for heritage buildings. Emerging player in the breathable-materials heritage retrofit space that Mitchell & Dickinson specifies and installs.
• Lime Green Products: UK manufacturer of lime-based plasters, renders and insulation systems for heritage and traditional buildings. Emerging player whose lime plaster and natural insulation range is used as a substitute or complement to Mitchell & Dickinson's specification.
• Ecological Building Systems: UK and Ireland distributor of natural, breathable insulation systems (wood fibre, lime-based products) for heritage and high-performance buildings. Emerging player whose product range — sheep's wool, wood fibre boards, lime plasters — overlaps directly with Mitchell & Dickinson's material specification.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/mitchanddickins
• Facebookfacebook.com/mitchellanddickinson

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

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 Mitchell & Dickinson