What Passive House Systems does

Passive House Systems distributes almost exclusively through direct e-commerce storefronts operated under regional domains (passivehousesystems.co.uk, .ie, .de, .com), supplemented by a trade account program for contractors (three-day approval, special pricing) and free standard delivery above £350. Pricing is unit-based and ex-VAT, ranging from £6.79 for PHS Ottello sealant to £78.32 for PHS Polaris Air Block or PHS Apollo 2 per roll, with a secondary revenue line from Airtightness Academy training at £65 per session (customised programmes quoted on request). Customer segments are horizontal across contractors/builders/installers as the primary business and energy-conscious DIY homeowners as a secondary persona, serving timber frame, masonry and cement construction across supported/unsupported roof finishes and flat or sloped roofs. UK operations expanded in September 2025 with a Stansted fulfilment centre and the hire of Technical Sales Advisor Scott Reece (15+ years construction experience), with active technical content marketing via an Information Hub (CAD drawings, datasheets, brochures, how-to videos) and a YouTube channel (@passivehousesystemsUK) supporting product specification and adoption.

Name

Passive House Systems

Legal name

NZEB Products Limited

Website

https://passivehousesystems.co.uk

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

Passive House Systems is a UK-based e-commerce supplier of airtightness, weathertightness, and vapour control building envelope products serving contractors and DIY homeowners across the UK, Ireland, and Germany.

Ownership category

akta.pro rank

Product category

Building Envelope Materials

NAICS

Home Centers (444110)

akta.pro primary industry

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

Keywords

• Airtightness membranes
• Vapour control systems
• Building envelope products
• Passive house components
• Weathertightness solutions

Headquarters

HQ city

Epping

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Marketing or Sales, Operations, Technology or R&D, Others

Revenue model

1. Building Materials Sales: Sale of airtightness and weathertightness building products including vapour control membranes, tapes, sealants, insulation, and accessories through e-commerce and trade accounts.
2. Training Services: Airtightness installer training programs offered through Airtightness Academy, including classroom theory and practical installation training at £65 per session.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Passive House Systems is a supplier of airtightness and weathertightness building envelope products for domestic new build and retrofit construction. The portfolio spans internal vapour control membranes (VCL), external breather membranes, joining tapes, window sealing tapes, adhesives, primers, sealants, expanding foams, insulation boards and slabs, loft access products, and installation tools, sold under the PHS brand and complemented by Gerband and Phonotherm product lines. The company also delivers paid installer training through its Airtightness Academy and operates dedicated e-commerce storefronts in the UK, Ireland, and Germany.

Product overview

Passive House Systems is a supplier of energy-conserving building envelope products for domestic new build and retrofit construction projects. The company operates in the UK, Ireland, and Germany. Their product portfolio includes: airtight vapour control membranes (PHS Polaris Air Block, PHS Sd Variable Plus, PHS Apollo 2, PHS Astra, PHS Hi-Thermia, Gerband sd control/vario, EPDM membrane, liquid membranes), airtight and window sealing tapes (PHS Argo Plus, PHS Speedy Tape, PHS Reflecta, PHS Duplex, PREFOLD PHS Fusion Variable Plus, Gerband tapes), breather membranes (PHS 120-210 range), insulation products (Phonotherm 200, Naturheld Flex wood fibre, PHS Alu Bubble Roll, Rockal, Ecocel), adhesives and sealants (PHS Ottello, PHS MS Hybrid, PHS Airtight Foam), loft access products (PHS DELUX/ECO loft stairs, downlight hoods, inspection doors, service grommets), installation tools (seam rollers, sausage guns, foam kits), and comprehensive systems (QWS Quality Window Sealing, PHS Defender, Gerband rooftite). They also offer installer training through the Airtightness Academy and ventilation products including PHS HRV 550 units.

Differentiator

Problem solved

Functional benefit

Brands

• QWS (Quality Window Sealing): A high performance airtightness system specifically designed for sealing window and door reveals.
• PHS Defender Weathertight System
• Gerband Rooftite System

Products and services

• PHS Polaris Air Block

Quantifiable outcome

• A home can lose 25% of its heat through the roof if loft stairs are not insulated
• +1 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• YBS Insulation: UK manufacturer and distributor of reflective insulation, vapour control layers, and airtightness products including SuperFOIL and BreatherQuilt. A UK-based direct competitor in VCL and multifoil insulation categories, supplying both trade and DIY channels.
• Siga: Swiss manufacturer of high-performance airtightness and weathertightness membranes, tapes, and sealants. The category leader in Central Europe and the most direct competitive benchmark to PHS's product range across roof, wall, and window applications.
• Ecological Building Systems: Ireland-based specialist distributor of healthy, high-performance building envelope products including Pro Clima, Gutex, and Woodfibre. A close direct peer to PHS in the Irish/UK market, serving architects, builders, and self-builders with airtightness and natural insulation systems.
• Gerband: German manufacturer of adhesive tapes, vapour control membranes, and airtightness systems. PHS actively resells Gerband products under the Gerband sd control/vario and rooftite sub-brands, making Gerband both a supplier and a competitive benchmark in the same product category.
• Pro Clima (Moll bauökologische Produkte): German manufacturer of intelligent airtightness and windtightness systems, including the well-known INTELLO and SOLITEX product families. Competes head-to-head with PHS in the UK, Irish, and German markets on intelligent vapour control and weathertightness membranes.

Emerging players

• 475 High Performance Building Supply: US-based specialist supplier of high-performance building envelope products ( Siga, Pro Clima, 475 components). Comparable to PHS in its specialist, training-led, e-commerce distribution model for the Passive House / high-performance building community.
• Partel: Ireland/UK-based manufacturer and supplier of airtightness and windtightness membranes, tapes, and components. Directly comparable niche specialist serving the Passive House and NZEB markets in the British Isles with a similar system-based go-to-market.

Broad incumbents

• Saint-Gobain (ISOVER): Global building materials group whose ISOVER brand manufactures insulation and vapour control membranes. Operates broadly across building envelope categories and competes with PHS on insulation and breather membranes, particularly in larger commercial and residential build channels.
• DuPont Tyvek (DuPont): Major manufacturer of breather membranes, house wraps, and air/water barrier systems under the Tyvek brand. Competes with PHS in the breather membrane category and represents the larger, brand-led incumbent that PHS differentiates against on Passive House certification and depth of system documentation.
• Kingspan Group: Irish-listed global building envelope specialist with deep high-performance insulation and membrane portfolios. Represents a much larger incumbent that competes in adjacent categories (insulation boards, structural insulated panels) and increasingly in the airtightness/accessories space.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@passivehousesystemsUK
• Xx.com/passivehousesys
• Facebookfacebook.com/PassiveHouseSystemsLtd
• LinkedInlinkedin.com/company/passivehousesystems

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Passive House Systems