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  • Serving Scotland

Underfloor Insulation Scotland

Suspended Flooring Insulation & Floor Insulation Installers Scotland

Underfloor Insulation in Scotland

Underfloor insulation might not be the first thing that comes to mind when considering home insulation, as most people tend to think about internal walls, lofts, and roofs. However, underfloor insulation is a valuable addition to these other insulation methods. In fact, a significant portion of our projects involve insulating both the floor and the loft simultaneously.

Uninsulated floors can result in a loss of at least 10% more heat through the ground. We can insulate both wooden suspended flooring (also referred to as timber suspended flooring) and concrete floors, provided there is a crawl space accessible via a hatch. The accessibility is vital for our insulation installers to move around, especially when installing underfloor spray foam insulation, which requires a bit more space.

In cases where there’s no hatch or any other reason making the floor inaccessible from underneath, we may need to lift the carpet, hard flooring, and underlay to install the insulation. While this process can be messy, some homeowners choose not to have underfloor insulation if there’s no hatch access.

Why should I insulate under my floor?

As mentioned earlier, homeowners typically think about insulating their floors after insulating their lofts and walls, or they decide to insulate all these areas simultaneously. While floor insulation offers its own advantages, neglecting to insulate your flooring while insulating your walls and loft compromises the effectiveness of your existing insulation to some degree. For comprehensive and efficient home insulation, underfloor insulation is crucial!

Underfloor Insulation Installers Scotland

Underfloor insulation plays a crucial role in establishing an energy-efficient and comfortable home environment. Our experienced underfloor insulation installers are well versed in selecting the most suitable options for your floor insulation needs, emphasising the advantages of insulating between floors and employing cost-effective methods. Our installers are dedicated to assisting you in making informed decisions that enhance energy efficiency and thermal comfort. Whether you opt for insulating under wooden floors, floorboards, or between floor joists, employing the right insulation materials and techniques will enhance sustainability and create a more pleasant living space.

As you can see installing underfloor insulation is not an easy job, these pictures show an installation with just enough crawl space, alternatively we can lift your carpet and or flooring and install from above the floor 


Envirosmart Ltd - sustainable underfloor insulation in Scotland

We specialise in underfloor insulation and renewable energy solutions, employing only top-quality environmentally friendly materials in all our installations. Our certified installers possess extensive expertise in various aspects of home energy efficiency programs, following the guidelines recommended by the Energy Savings Trust.

Loft, Roof, Wall & Underfloor Insulation

We specialise in:

  • - Therma fleece, sheeps wool insulation.
  • - Knauf Earthwool and Rockwool insulation.
  • - SuperQuilt multifoil insulation.

PIR Insulation Boards

A grade insulation, thin, light, durable, stable, humidity proof, pressure resistant and compliant in building regulations.

Envirosmart Limited Scotland
Proudly partnered with and trusted by...​

What our clients say about us

Insultation in Scotland

Initially we contracted Craig and his team to provide insulation for two attic rooms which are either freezing or much too hot and they ended up fitting a new kitchen too.
We can't recommend this firm highly enough, especially for the way they helped us through the unexpected discovery of damp.

Communication and customer service were excellent; friendly helpful worker were punctual, hardworking and cleaned up thoroughly.
Highly recommended.
Sara O'Hara
Carolyn O'Hara
Our Team

Underfloor Insulation Installers serving Scotland

Craig Maxwell - Envirosmart Limited

Craig Maxwell


Allan Hughes - Envirosmart Limited

Allan Hughes

Installation Manager

Fraser Hughes - Envirosmart Limited

Fraser Hughes

Installation Engineer

Callum Gordon - Envirosmart Limited

Calum Gordon

Installation Engineer

Say hello, and get a free home visit

We would be privileged to give you a free quote on the job you need doing. Get in touch today and arrange a free home visit.

    What is Underfloor Insulation?

    Underfloor insulation involves insulating the space beneath the floors in your home and is applicable to both wooden and timber suspended flooring as well as concrete floors. For concrete floors, a small hatch is necessary, often located in your kitchen (formerly the pantry), providing adequate access for our underfloor insulation installers to work efficiently. Typically, a space of around 2 meters is ideal for conducting the installation.

    Similar to loft insulation, various materials can be utilised, including Knauf Earthwool and Rockwool products, sheep’s wool insulation, foil insulation, PIR rigid insulation boards, or spray foam insulation.

    How Does Floor Insulation Work?

    While underfloor insulation might not result in noticeably warmer floors like underfloor heating does, it plays a crucial role in preventing floors from becoming excessively cold, especially in uninsulated spaces close to the cold ground, such as concrete flooring. Underfloor insulation doesn’t confine heat to a specific area like loft or internal wall insulation. Instead, it primarily reduces heat loss by creating a controlled air flow barrier. This barrier prevents cold air from entering from outside and blocks warm, stuffy air from coming in during warmer months.

    Although it doesn’t trap heat as effectively as loft, roof, or wall insulation, it does help retain some of the warmth generated by your home’s central heating. Think of it like a thermal flask that maintains the temperature of its contents a controlled environment that keeps warm air inside during colder periods and prevents excessive heat from entering during warmer seasons. Effective insulation across all areas of your home ensures a balanced and comfortable indoor environment.


    Underfloor Insulation Benefits

    Here is a list of the key advantages of having insulation installed beneath your floors:

    Less warm air will escape from under your flooring, keeping your home warmer indoors, especially at night when your central heating is turned on.

    Investing in insulation under wooden floors can lead to significant long term energy and heating bill savings. By reducing heat loss through the floor, your heating system doesn’t have to work as hard to maintain a comfortable temperature. This results in lower energy consumption and reduced heating bills. Over time, the savings can accumulate, making the initial investment in insulation under wooden floors well worth it.

    Underfloor insulation is an effective way to improve your homes EPC (energy performance certificate) rating. It is recommended that homes in Scotland have an EPC rating of D or higher.


    One of the primary advantages of insulating under wooden floors is the improved energy efficiency it provides. By adding insulation in this area, you can minimise heat loss through the floor, preventing cold air from infiltrating your living space during the winter months.

    Insulation acts as a barrier, reducing the transfer of heat between the floor and the space below. As a result, your heating system can operate more efficiently, and you can maintain a consistent and comfortable indoor temperature.

    Insulating under wooden floors can have a direct impact on the thermal comfort of your home. Without insulation, cold air from the crawl space or basement can seep through the floorboards, creating drafts and making the living space feel chilly and uncomfortable. By installing insulation, you can create a thermal barrier that helps to keep the floor warmer and minimises the cold air infiltration, providing a more pleasant living environment.

    In addition to energy efficiency and moisture protection, insulating under wooden floors can also offer soundproofing benefits. The insulation material helps to absorb and dampen sound vibrations, reducing airborne noise transmission between floors.


    This can be particularly beneficial in multi-story homes or buildings with shared living spaces, where sound privacy and noise reduction are desired.


    In conclusion, insulating under wooden floors is a worthwhile investment that brings numerous benefits. Improved energy efficiency, enhanced thermal comfort, energy cost savings, moisture protection, and soundproofing advantages make it a valuable addition to your home.

    Insulating under wooden floors can also provide protection against moisture related issues. By creating a barrier between the floor and the crawl space or basement, insulation helps to prevent moisture from rising into the floorboards. Excess moisture can lead to rot, mold growth, and damage to the wooden structure. Insulation acts as a moisture barrier, minimising the risk of these issues and contributing to the longevity and durability of your wooden floors.

    Effective underfloor insulation will reduce dampness both in the air and on areas of your floor that are insulated.

    It is a well known fact that hot air rises, underfloor insulation helps create a barrier on your floor from the ground underneath, keeping the air a nice temperature during hot summer months as well keeping the cold winter air out!


    Suspended Floor Insulation Scotland

    Suspended flooring is a prevalent feature in many homes across Scotland, especially during the 18th and 19th centuries. It served as an efficient method to keep people’s homes insulated from the cold ground. In a sense, the creation of suspended flooring can be considered one of the earliest forms of insulation.

    Suspended Timber Floor Insulation

    Insulating suspended timber floors is typically done through a hatch beneath the floor, allowing partial insulation of the floor joists from below. Another option involves lifting the floorboards, a viable choice if they are in good condition and can be securely reinstalled with thermal insulation placed underneath.

    Best Underfloor Insulation Material

    Choosing the appropriate floor insulation is vital for optimising energy efficiency and enhancing thermal performance. In this section, we’ll delve into the most efficient and effective options, considering factors like material performance, insulation thickness, and installation techniques. Understanding these aspects empowers you to make a well informed decision that aligns with your energy-saving objectives and guarantees lasting comfort in your home.

    Best Material For Performance

    Various insulation materials exhibit differing levels of performance concerning thermal conductivity, moisture resistance, and longevity. Consider materials like fibreglass, mineral wool, foam boards, and sprayed foam insulation. Evaluate their R-values (thermal resistance) to gauge their efficiency in minimising heat transfer and improving energy conservation.

    Fiberglass Floor Insulation

    Fibreglass insulation stands as a popular and budget friendly choice. It is readily accessible, simple to install, and provides commendable thermal efficiency.

    Mineral Wool Floor Insulation

    Mineral wool, also referred to as rock wool or stone wool, is a cost-effective option. It offers superb thermal insulation, soundproofing, and fire resistance properties.

    Cellulose Floor Insulation

    Cellulose insulation, crafted from recycled paper, stands out as an eco-friendly and cost effective choice. It can be blown into cavities or used as loose fill, providing effective thermal insulation.

    Best Floor Insulation Thickness

    Choosing the right insulation thickness is crucial for maximising energy efficiency. While thicker insulation typically offers better thermal resistance, it’s important to find a balance to avoid unnecessary expenses or installation challenges. Factors such as available space, building regulations, and desired insulation performance should all be considered when deciding the suitable thickness for your floor insulation.

    Draught Proofing Your Floor Before Insulating

    Draught proofing your floor sealing gaps under flooring is a vital step in efficient underfloor insulation. It involves closing openings between floorboards, skirting boards, and other floor components to prevent drafts and air leakage from beneath the floor. This process establishes a barrier against drafts, enhancing the insulation’s effectiveness.

    Underfloor Insulation Installation Process

    Adding insulation to an existing floor is a practical and efficient approach to boost energy efficiency and optimise savings in your home. Regardless of whether your floor is made of wood or concrete, adequate insulation can minimise heat loss, enhance thermal comfort, and decrease energy consumption. In this section, we will offer you a detailed, step-by-step guide on effectively insulating an existing floor.

    Step 1: Assess the Current Condition

    Before you start insulating, it’s vital to evaluate your existing floor’s condition. Check for signs of damage like rot, dampness, or pest problems. If any issues are found, address them before proceeding with insulation. Ensuring the floor’s structural integrity is intact is fundamental for long term effectiveness.

    Step 2: Choose Suitable Insulation Materials

    Choosing the appropriate insulation materials is crucial for successful floor insulation, and the selection depends on your floor type:

    Wooden Floors: For wooden floors, insulation batts or rolls made from materials like mineral wool or fibreglass are suitable choices. These materials offer good thermal performance and are easy to handle and install.

    Concrete Floors: If your floor is made of concrete, rigid foam boards or spray foam insulation are commonly recommended. These materials provide excellent thermal insulation and can be directly applied to the concrete surface.

    Seek advice from our insulation experts to identify the best insulation materials tailored to your specific floor type.

    Step 3: Prepare the Floor Surface

    Thoroughly preparing the floor surface is vital for effective insulation installation. Cleanse the floor meticulously, removing debris, dust, or any obstacles. It’s crucial to ensure the surface is dry and devoid of moisture, as this can impact the insulation’s performance and durability.

    Step 4: Install the Insulation

    The installation process varies based on the chosen insulation material. Here are the general guidelines:

    For insulation batts or rolls: Measure the floor joist spacing and cut the insulation to fit snugly between the joists. Install the insulation, ensuring no gaps or voids. Use insulation supports or netting if needed to hold it in place.

    For rigid foam boards or spray foam insulation: Cut the boards to match the floor dimensions and securely attach them to the floor surface. Focus on proper air sealing and insulation continuity to minimise heat loss and enhance energy efficiency.

    Step 5: Seal Air Leaks and Gaps

    To maximise the efficiency of your floor insulation, it’s vital to seal any air leaks or gaps. Utilise caulk or foam sealant to seal around openings like pipes, electrical outlets, or gaps between the insulation and the floor surface. This prevents air infiltration and preserves airtightness.

    Step 6: Assess and Enhance Vapour Barrier

    If your floor is above a ventilated crawl space or basement, contemplate installing or enhancing the vapour barrier. A vapour barrier aids in preventing moisture from infiltrating the insulated floor assembly, minimising the likelihood of condensation and potential moisture related problems.

    Step 7: Monitor and Maintain Insulation

    After insulating your floor, it’s essential to regularly assess its condition and promptly attend to any maintenance requirements. Insulation may settle or degrade over time, affecting its efficiency. Periodically inspect for signs of damage or wear and tear, and perform essential repairs or replacements when necessary.

    By adhering to these detailed instructions, you can proficiently insulate your existing floor, leading to enhanced energy savings. Correct insulation installation guarantees increased thermal comfort, decreased energy usage, and a more eco-friendly and cozy living space. For personalised advice and to ensure compliance with local building codes and regulations, consult our insulation experts.


    Is Underfloor Insulation Worth It?

    Although underfloor insulation may entail a lower initial cost compared to other insulation methods, it’s crucial to consider its potential for long term savings. Investing in underfloor insulation now can lead to significant energy savings over the years. Here’s how floor insulation can result in lasting financial benefits:

    Reduced Energy Bills: Efficient insulation minimizes heat loss, ensuring a comfortable indoor temperature. Consequently, there’s less need for excessive heating, leading to decreased energy expenses.

    Increased Energy Efficiency: Insulating your floor enhances the overall energy efficiency of your home. It prevents heat transfer and preserves the warmth generated by your heating system, reducing energy wastage.

    Enhanced Home Value: Insulation is an appealing feature for prospective homebuyers. By opting for cost-effective insulation solutions, you can potentially raise the value of your home. This makes it a wise long term investment, contributing to increased property worth.

    Underfloor Insulation Grants Scotland

    Government funded grants for underfloor insulation are accessible through the ECO scheme, benefiting homeowners and tenants in Scotland.

    Envirosmart Limited holds TrustMark accreditation, enabling us to utilize the grant funding you’ve received to install underfloor insulation.

    To initiate the application process for an underfloor insulation grant, you can visit Home Energy Scotland. We’re here to support you throughout this process, providing assistance and ensuring you have an approved installer to specify when applying for your grant.


    Underfloor Insulation Cost Scotland

    Determining the cost of underfloor insulation involves multiple factors, making it challenging to provide a precise estimate without a thorough assessment. During our complimentary home survey, we assess the total flooring area, discuss the optimal insulation material, consider other home insulation requirements, and evaluate the need for removing existing materials. Additionally, we take into account factors like the presence of a crawl space hatch or the necessity to lift carpets or flooring.

    Given the complexity of these considerations, we strongly recommend our free home survey. This allows us to provide you with an accurate and tailored cost estimate based on your specific needs and circumstances.

    Proudly partnered with and trusted by...​

    What our clients say about us

    Insultation in Scotland

    Initially we contracted Craig and his team to provide insulation for two attic rooms which are either freezing or much too hot and they ended up fitting a new kitchen too.
    We can't recommend this firm highly enough, especially for the way they helped us through the unexpected discovery of damp.

    Communication and customer service were excellent; friendly helpful worker were punctual, hardworking and cleaned up thoroughly.
    Highly recommended.
    Sara O'Hara
    Carolyn O'Hara

    Say hello, and get a free home visit

    We would be privileged to give you a free quote on the job you need doing. Get in touch today and arrange a free home visit.

      Unit 55, Magbiehill Park, Dunlop Road, Stewarton, KA3 3DX, Scotland

      0800 8611394
      Mob: 07745 597355


      Underfloor Insulation Installers in Scotland

      Envirosmart Limited has dedicated teams of insulation installers ready and able to install underfloor insulation in most of Scotland including Argyll and Bute, Ayrshire, Clackmannanshire, Dumfries and Galloway, Dundee, East Dunbartonshire, East Lothian, Edinburgh, Falkirk, Fife, Glasgow, Greenock and Inverclyde, North Lanarkshire, Perth and Kinross, South Lanarkshire, Stirling, West Lothian and West Dunbartonshire.

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