Explore by application

Loft

Loft

Floor

Floor

Walls

Roof

Retrofit Insulation | Insulation Merchant

Retrofit

Acoustic

Fire Rated Insulation

Airtight & Windtight Systems

Building Boards

PRO-TEX Site Protection

popular

Featured products

  • 60mm ULTIMATE Rigid Insulation Retaining Washer (woodwool & woodfibre) (Pack of 100) 60mm ULTIMATE Rigid Insulation Retaining Washer (woodwool & woodfibre) (Pack of 100)
    New
    INSULATION WASHER by Insulation Merchant

    60mm ULTIMATE Rigid Insulation Retaining Washer (woodwool & woodfibre) (Pack of 100)

    From £11.63 ex. VAT
    £0.12 per ea
    From £13.95 inc. VAT
    £0.13 per ea
    From £13.95 inc. VAT
    £0.13 per ea
    Save £-13.95
    From £11.63 ex. VAT
    £0.12 per ea
    £0.00 Save £-11.63
  • SIGA Majcoat® 350 Diffusion-open Breathable Roof Membrane | Insulation Merchant SIGA Majcoat® 350 Diffusion-open Breathable Roof Membrane | Insulation Merchant
    Sale 6%
    Spring Savings
    Bat Friendly
    MAJCOAT® 350 by SIGA

    SIGA Majcoat® 350 Diffusion-open Breathable "Bat-friendly" Roof Membrane

    £457.88 ex. VAT
    £9.14 per m²
    £549.45 inc. VAT
    £10.97 per m²
    £549.45 inc. VAT
    £10.97 per m²
    £588.00 Save £38.55
    £457.88 ex. VAT
    £9.14 per m²
    £490.00 Save £32.13
  • Airtight and windtight systems | Insulation Merchant 60mm Pro Clima Tescon Vana - Airtight Tape (30m) | Insulation Merchant
    Sale 5%
    Spring Savings

    5.0

    TESCON by Pro Clima

    60mm Pro Clima Tescon Vana - Airtight Tape (30m)

    £24.39 ex. VAT
    £0.81 per LM (linear metre)
    £29.27 inc. VAT
    £0.97 per LM (linear metre)
    £29.27 inc. VAT
    £0.97 per LM (linear metre)
    £30.84 Save £1.57
    £24.39 ex. VAT
    £0.81 per LM (linear metre)
    £25.70 Save £1.31
  • ENVIROGRAF CV30/6 Flexible Strip Cavity Barrier - 2m x 30mm x 6mm (50-60mm Gap) | Insulation Merchant ENVIROGRAF CV30/6 Flexible Strip Cavity Barrier - 2m x 30mm x 6mm (50-60mm Gap) | Insulation Merchant
    Spring Savings
    Free Shipping
    CAVITY BARRIER by Envirograf

    ENVIROGRAF CV30/6 Flexible Strip Cavity Barrier - 2m x 30mm x 6mm (50-60mm Gap)

    £20.38 ex. VAT
    £10.19 per LM (linear metre)
    £24.46 inc. VAT
    £12.23 per LM (linear metre)
    £24.46 inc. VAT
    £12.23 per LM (linear metre)
    £24.46 Save £0.00
    £20.38 ex. VAT
    £10.19 per LM (linear metre)
    £20.38 Save £0.00
  • 140mm Knauf FrameTherm® Roll 32 (2 x 570mm rolls) (3.19m²) | Insulation Merchant 140mm Knauf FrameTherm® Roll 32 (2 x 570mm rolls) (3.19m²) | Insulation Merchant
    Spring Savings
    Free Shipping
    570mm

    5.0

    FRAMETHERM ROLL 32 by Knauf Insulation

    140mm Knauf FrameTherm® Roll 32 (2 x 570mm rolls) (3.19m²)

    £70.79 ex. VAT
    £22.19 per m²
    £84.95 inc. VAT
    £26.63 per m²
    £84.95 inc. VAT
    £26.63 per m²
    Save £-84.95
    £70.79 ex. VAT
    £22.19 per m²
    £0.00 Save £-70.79
  • 100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m²) 100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m²)

    5.0

    INDITHERM HEMP - 570 by IndiNature®

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m²)

    £37.61 ex. VAT
    £13.73 per m²
    £45.13 inc. VAT
    £16.47 per m²
    £45.13 inc. VAT
    £16.47 per m²
    Save £-45.13
    £37.61 ex. VAT
    £13.73 per m²
    £0.00 Save £-37.61
give us a review

Trustpilot

Trustpilot
Trustpilot

Very helpful delivery

Good price, delivery just when I wanted it and that wasn't long from order. Also, (unlike some other merchants) the lorry had a forklift onboard to offload the 83 boards; and so was able to wheel the double pallets around two corners to the back of the house for storage and use. Wouldn't hesitate to order again from them, but I always seek more than one price. Now all installed above the rafters prior to re-roofing by my helpful builder, who liked the tongue and groove nature of the 80mm thick Steico Extra Dry.

A company l now trust

This was the 2nd time I ordered from Insulation Merchant. Again my order arrived in good time and was well packaged. On the 1st occasion l phoned to get an order update, and they informed me of an alternative product just in which was a little cheaper than what l had ordered. I was very pleased. This is quality customer service and a great selection of products on a well designed website. I'll be returning to them.

Excellent service and advice

Excellent service and advise, big shout-out for David Clark, Sales Director, who guided me on the best product for my project. Went with the Steico wood based product in the smallest width, unfortunately old Edwardian houses never have the floor joist at a standard or same width. This product makes a mess when cut but easily swept up and far better to handle than the itchy glass stuff.

Most Searched Products

Description of your image We plant trees with Ecologi

We're planting a tree with every order

View our forest!
Pro Clima Knauf Steico IndiNature SIGA Thermafleece Rockwool Envirograf A Proctor Group

FAQs

Feel free to reach out if you have any further questions!
1

Can I collect?

Yes, we have a trade store that is open between 7 am - 5 pm where you can pick up your order.

2

Are you trade only?

We are open to trade and public.

3

Can I open an account?

We would be happy to consider opening an account for anyone. Please contact us and we will send you an application form.

4

What payment methods do you accept?

We accept a wide range of payment options, including Bank Transfer, PayPal, Apple Pay, American Express, Master Card, Google Pay, Visa and Cash.

5

Forklift & Tail lift Offload

We can provide mechanical offload onsite via onboard forklift and tail lifts. If you require this service, please ask when placing an order.

read our blogs

Latest guides

Read more blogs
  • Navigating Your Self-Build Project

    Navigating Your Self-Build Project

    Build a warm, efficient home with top insulation picks - cost-effective, high-performance and eco-friendly options like mineral wool, PIR boards an...

  • Insulating your van conversion blog | Insulation Merchant

    Insulating Your Van Conversion

    With increasing costs of buying purpose-built motorhomes, more and more people are converting vans into their own home away from home! Read our blo...

  • Shed and Garden Room Insulation blog | Insulation Merchant

    Shed and Garden Room Insulation

    Are you looking to make improvements to your shed or garden room? Learn more about the most appropriate weather-proofing and insulation in our hand...

  • What is sustainable insulation? | Insulation Merchant

    What is Sustainable Insulation?

    Are you looking to make your home more eco-friendly but don't know what insulation is right for you? Learn about sustainable types of insulation in...

  • woman_insulating_loft_thermafleece | Insulation Merchant

    Insulating Loft Spaces

    The benefits of insulating a loft space are well known. Hot air in the home travels upward therefore trapping this heat before it is lost at the ce...

  • Insulating Ground Floors | Insulation Merchant

    Insulating Ground Floors

    To undertake a ground floor thermal insulation upgrade it is first important to establish if it is possible or not. In domestic buildings, broadly ...

about us

A leading UK speciality insulation distributor

As one of the UK's leading online insulation retailers, Insulation Merchant is a high quality independently owned supplier of insulation, dry-lining and related materials. Established in 2012, we offer an efficient service throughout Scotland and the United Kingdom from our central location in Stirling. Our growing customer base ranges from groundwork contractors, house-builders, building and timber merchants, local joiners and roofers, self-builds and members of the general public working on DIY renovations. Whether you need acoustic insulation for soundproofing or fire-proof insulation to meet building regulations, we supply quality products to suit any budget or application.

Browse our extensive range of over 2000 products from top brands. We also offer great value own-brand insulation and accessories.

Our product categories include:

Loft and Underfloor Insulation - Stay warmer and save on energy bills. We supply a variety of popular types of insulation including glass and mineral wool rolls, sheep’s wool, and rigid foam boards. Thermafleece, a manufacturer of British sheep's wool, is the ideal choice if you are looking for all-around performance and value for money. Their wool-rich blend ensures you get the full benefit of sheep's wool with enhanced performance, breathability, durability and sustainability.

Natural Insulation – Eco-friendly options like wood fibre, hemp fibre, sheep’s wool, recycled fibre insulation and wood wool boards from leading brands such as Steico; Indinature; Thermafleece; Sisaltech and Skanda. We are Scotland's main distributor and the only physical stockist for wood fibre boards and systems, meaning lower carriage costs and lead times for our customers!

Airtightness products - Membranes, tapes, and accessories to seal gaps and prevent drafts. Fire protection - Fire-resistant insulation boards and accessories to meet building regulations.

Airtightness products - Class-leading membranes, liquid membranes, cable and pipe grommets, airtightness tapes and specialist accessories to seal gaps, prevent drafts and keep buildings performing optimally. Our range of technical solutions from brands such as Siga, Pro Clima, Tyvek, Obex and Partel are ideally suited for retro-fit and new build, internal or external use.

Renders and Plasters – We stock a broad range of finishing materials by Adaptavate and Baumit.

Fire Protection – Fire-rated insulation boards and accessories, for example Unilin Safe-R and Kingspan Kooltherm phenolic ranges; Rockwool TCB Cavity Barriers and Envirograf CV Strips for fire protection of ventilated cavities, to ensure your project meets current building regulations.

Insulation Boards – Buy rigid PIR and flat roof insulation boards for external wall, roof, and floor applications from leading brands such as Kingspan, IKO and Unilin.

Plasterboard – We provide a wide range of plasterboard, from standard wallboard through to specialist boards such as fire panel; moisture resistant; soundshield and acoustic from Knauf, Kingspan, Siniat and British Gypsum. We also sell construction and building boards by leading manufacturers RCM, STS, Skanda and Ceewood.

Insulation Fixings – Mechanical fixings, adhesive, tapes, seals, primers and more from brands such as Ejot, Heko,Timco, Evolution and Rothoblass to help you properly install insulation.

Specialist Products – We also offer a range of high-performance insulation products such as Proctor Spacetherm Aerogel, Kingspan Optim-R, Owens Corning Foamglas and Geocell Foam Glass.

Whether you need help choosing the right insulation or have a technical query, our friendly team is ready to assist you. Contact us on 01786 657 911. Check our Help and Advice section for useful guides like "Shed and Garden Room Insulation" or "Insulating Loft Spaces".

At Insulation Merchant, the best projects start with high-quality insulation, plasterboard and accessories at affordable prices. Buy online today!

 ...