PK Complex – Knauf building materials shop
Knauf’s official partner in Poland. Mineral wool, gypsum plasters, plasterboard and XPS polystyrene – all in one place, with a guarantee of the lowest prices. A range covering 100% of construction and renovation needs. Order online! Not sure what to choose or which products to order? Give us a call – our specialists are here to help.
An official Knauf partner – building materials recommended by experts
PK Complex is an authorised distributor of the Knauf brand in Poland – which, in practice, means that you are buying only genuine products directly from the official distribution channel, with a full guarantee and the latest product range. Our range covers all your construction and renovation needs: from thermal and acoustic insulation, through drywall systems, to plasters and construction chemicals.
See the full range of Knauf products …and find everything you need for your building or renovation project!
Why PK Complex?
An official partnership with Knauf provides a concrete guarantee for the buyer. Every product comes from an authorised distribution channel, is accompanied by up-to-date technical documentation and comes with full manufacturer support. We do not sell substitutes, old stock or products of unknown origin.
What’s more, we offer something that’s becoming increasingly hard to find in online shops – professional advice. Our experts know the product range inside out and can answer specific customer enquiries: which product to choose, what thickness to go for, and how much to order. Whether you’re an experienced builder or just starting your first project, we’re here to help at PK Complex.
Four things that make shopping at PK Complex stand out:
- Official partner of Knauf – only genuine products with a guarantee of authenticity and full documentation.
- Lowest Price Guarantee – Have you found the same product cheaper? We’ll match the price.
- Room for negotiation – For larger orders, we discuss the price on a case-by-case basis.
- Free advice – before, during and after your purchase – we’re here to help at every stage of the project.
Bestsellers – the most popular products
Knauf mineral wool – loft and roof insulation
Knauf mineral wool is synonymous with warm and quiet attics in Polish homes. Products from the Unifit range are supplied in springy rolls which, once unpacked, automatically fill the space between the rafters tightly – without the need for adhesive or additional fixings. The lambda value λ = 0.035 W/(m·K) for Knauf Unifit 035 is one of the best thermal performance figures in its price category, which is why it is our bestseller year after year. Check it out: Knauf Unifit mineral wool and the category Knauf mineral wool.
Knauf plasters – gypsum, cement-lime and machine-applied
The Knauf range of plasters includes products for every application: from gypsum plasters for interiors, through cement-lime plasters for surfaces with higher requirements, to machine-applied plasters for large areas. Knauf MP 75 is a machine-applied gypsum plaster – suitable for interior walls and ceilings, with a layer thickness of 8 to 50 mm, and once dry, it forms a white, smooth surface ready for painting. Check it out: Knauf MP 75 gypsum plaster and Knauf plastering systems.
Knauf plasterboard – ceilings and partition walls
Knauf plasterboards form the basis of any drywall installation: partition walls, suspended ceilings and service casings. Available in several variants – standard for dry rooms, moisture-resistant (green) for bathrooms and kitchens, and fire-resistant (pink) for fire safety requirements. All boards are compatible with profiles and accessories from the same Knauf system, so there’s no problem combining different elements within a single project. Check out the available options Knauf plasterboard across the shop’s entire range.
XPS and polystyrene – insulation for foundations and floors
Extruded polystyrene (XPS) is insulation with character: low water absorption (less than 0.3% by volume) and high mechanical strength mean it performs well where EPS simply softens – foundations, ground-level floors, terraces and flat roofs. Where constant damp is the norm, XPS provides peace of mind for years to come. Take a look: Knauf Therm polystyrene / XPS available in several thicknesses.
Knowledge base – guides and expert articles
If this is your first time renovating or building, the articles below will guide you through the most important topics step by step. Choose from the options below or visit the tab blog …and find a topic that interests you!
How do you insulate an attic with mineral wool?
A step-by-step guide through the entire process: from choosing the thickness of the insulation (WT 2021 requires a minimum of 25 cm at a lambda value of 0.035), through installation between and beneath the rafters, to the vapour barrier and membranes. Read: How do you insulate an attic with mineral wool, step by step?
Cement-lime plaster – when should you choose it?
Plaster-based or cement-lime? It depends on the substrate, the humidity in the room and your expectations regarding strength. Read: Cement-lime plaster – a guide.
A suspended ceiling – how do you install one?
A comprehensive guide to plasterboard ceilings: CD and UD profiles, direct and vernier hangers, step-by-step installation and approximate material costs. Take a look: Suspended ceiling – how to install one.
Stress-free shopping – PK Complex customer service
Buying building materials doesn’t have to mean spending hours comparing specifications and wondering whether the product you’ve chosen will be suitable. At PK Complex, we focus on a straightforward purchasing process and expert support at every stage of your project.
As an official partner of the Knauf brand, we offer only genuine materials, competitive prices and advice based on practical experience.
How to order? Delivery throughout Poland
Ordering from PK Complex is quick and convenient. Simply select your products, add them to your basket and place your order online. If you’re planning a larger project or need a personalised quote, please get in touch – we’ll prepare an offer tailored to your needs.
We deliver throughout Poland, working with reliable carriers. This ensures that materials are delivered safely and on time to both small-scale renovation projects and large-scale construction sites.
Product material calculators – work out how much you need
Not sure how many packs of mineral wool, plasterboard or other materials to order? For most products, you’ll find a handy calculator to help you quickly work out the quantity you need.
Simply enter the area and your chosen parameters, and the system will provide an estimate of the material required. It’s a simple way to minimise the risk of errors, avoid unnecessary costs and plan your purchases efficiently.
Do you have a question? No-obligation advice
We don’t push products on you. First, we want to find out about your investment and help you choose the solution that really is the best one.
If you have any queries regarding material specifications, insulation thickness, product quantities or installation methods – Please get in touch with us. We’ll offer advice with no obligation and explain everything in plain language.
At PK Complex, we believe that good service doesn’t end at the point of purchase. That is why you can count on our support even after the materials have been delivered. We want the whole process – from your first enquiry to the completion of your project – to run smoothly, without stress, and with the confidence that you have a trusted partner on your side.
Customer reviews
You can find our customers’ reviews on our shop’s website and on Google – we’d love for you to share your experience once your order has been delivered.
FAQ – frequently asked questions about the PK Complex shop
Is PK Complex an official partner of Knauf?
Yes. PK Complex is an official trading partner of the Knauf brand. This means that you are buying only genuine products from an authorised distribution channel. Thanks to our ongoing collaboration with the manufacturer, we ensure a wide range of products, expert advice and competitive prices.
What is the delivery time for orders?
Delivery times depend on the type of products ordered, their availability and the delivery address. We fulfil orders as quickly as possible, working with trusted transport companies throughout Poland. You will be given the exact delivery date when placing your order or after contacting one of our advisers.
Is it possible to negotiate prices for larger orders?
Yes. For larger orders, we provide bespoke quotations and prices are negotiable. If you’re planning to build a house, carry out a comprehensive renovation or purchase a large quantity of materials, please get in touch with us. We’ll prepare a quote tailored to the scope of your project and will endeavour to offer you the best possible terms.
Does the shop offer pre-purchase advice?
Of course. We advise private customers, contractors and construction companies alike. We’ll help you choose the right materials, explain the differences between products, calculate the quantities required and answer any questions you may have about installation.
How do I use the materials calculator?
For most of the products available in the shop, you’ll find an intuitive materials calculator. Simply enter the area you plan to insulate or finish, and the calculator will automatically work out the approximate amount of material required. If you still have any doubts, our advisers will check the calculations and help you choose the right quantity of products for your project.

