"EnviroSmart have just replaced our 20yr old loft insulation… the installation team worked hard & efficiently, removed all old materials from site & left our home clean & tidy."
Natural & Eco-Friendly
Insulation That's Good for Your Home & the Planet
Free insulation surveys — Glasgow, Edinburgh, Ayrshire & Central Scotland
Loft insulation, underfloor insulation and spray foam removal for homes and businesses, using natural sheep's wool or Knauf Earthwool and fitted by our own team. Free survey, fixed written quote. Private & commercial work only — no grant schemes, no middlemen.
Spray Foam in Your Loft?
Spray Foam Removal Service
Careful Hand Removal
Loft sheeted and protected, foam cut and scraped off the rafters by hand, bagged and removed from site, and the loft vacuumed clean.
Photos & Written Report
Before-and-after photos of the timbers and a written removal report. Every lender decides case by case, so check with your lender or broker what they need.
Breathable Re-Insulation
Once the foam is out we fit sheep's wool or Earthwool, so the loft stays warm and the roof can ventilate properly — all in one fixed quote.
What We Install
Natural Insulation Done Properly
Loft insulation, underfloor insulation and spray foam removal — for homes and commercial properties, using the best natural, eco-friendly products on the market.
Premium Natural Product
Sheep's Wool Insulation
Sheep's wool is one of nature's finest insulation materials — and it's particularly well suited to the Scottish climate. Unlike mineral wool, it naturally absorbs and releases moisture without losing thermal performance, making it ideal for older stone buildings and timber-frame properties where moisture management matters.
It's completely non-irritant — safe to handle without protective equipment, no glass fibres, no respiratory risk. It also naturally resists mould, moths, and fire without synthetic chemical treatment.
- 100% natural, renewable & biodegradable
- Naturally moisture-regulating — won't degrade when damp
- Excellent acoustic performance as well as thermal
- Safe to handle — no PPE required, no skin or lung irritation
- Naturally flame-resistant without added chemicals
- Ideal for traditional Scottish stone and timber properties
- Loft and underfloor applications
λ0.035
Thermal conductivity
100%
Natural material
35yr+
Product lifespan
Best for:
- Traditional Scottish stone houses
- Timber-frame properties
- Listed buildings and conservation areas
- Environmentally-conscious owners
- Homes with previous damp or condensation issues
High Performance Mineral
Earthwool Loft & Floor Insulation
Earthwool by Knauf is our preferred mineral wool product — made from up to 80% recycled glass content and ECOSE® Technology, a formaldehyde-free bio-based binder derived from natural materials. It's softer, less itchy, and significantly more eco-friendly than traditional glass wool.
For loft installations, Earthwool achieves the Building Regulations recommended 270mm depth efficiently. For suspended timber floors, the rolls friction-fit perfectly between joists without adhesive or fixings.
- Up to 80% recycled glass content
- ECOSE® bio-based binder — no formaldehyde
- Softer, less irritant than standard mineral wool
- BBA certified and Building Regulations compliant
- Achieves 270mm loft depth recommendation
- Friction-fit between joists — no adhesive needed
- Loft and underfloor applications
λ0.044
Thermal conductivity
80%
Recycled content
270mm
Recommended depth
Best for:
- Standard loft insulation upgrades
- Suspended timber floor insulation
- Properties where cost-efficiency is key
- New build and renovation projects
- Reaching Building Regulations compliance quickly
Our Services
Loft & Underfloor Insulation
Loft Insulation
Up to 35% heat loss prevention
Your loft is the single biggest source of heat loss in an uninsulated home — up to 35% of your heating simply escapes through the roof. We install either sheep's wool or Earthwool between the joists (cold loft) or between and below the rafters (warm loft/converted loft), to the correct specification for your property.
- Cold loft: insulation between joists to Building Regulations 270mm
- Warm loft: rafter insulation for converted or usable loft space
- Top-up existing insulation where depth is insufficient
- Full blown-in option available for difficult-access lofts
Loft Insulation — How Long Does It Take?
Most residential loft insulation jobs are completed in a single day. We work clean, protect your loft hatch and any stored items, and leave no mess. You'll feel the difference by the next evening.
Underfloor Insulation
Suspended timber floors
Cold floors are a miserable but very solvable problem. For suspended timber floors — common throughout Scottish housing stock — we fit sheep's wool or Earthwool rolls between the floor joists from below (via underfloor access). This eliminates draughts, reduces heat loss and dramatically improves ground-floor comfort.
- Suspended timber floor insulation between joists
- Friction-fit rolls — no adhesive or fixings needed
- Access via underfloor void where possible — no floor lifting
- Suitable for traditional Scottish tenements and semis
- Improves EPC rating and reduces ground-floor heating demand
Underfloor Insulation — Disruption Level?
Where underfloor access is available (most suspended timber properties), there is zero disruption to your flooring. We access through inspection hatches or from outside. Where there is no access void, we discuss the best option with you before any work begins.
Why Natural Matters
Eco-Friendly from the Ground Up
We made a deliberate choice to focus on natural insulation products. Scotland has ambitious net zero targets for 2045, and buildings are one of the biggest contributors to carbon emissions. Using sheep's wool — a Scottish agricultural by-product — means we're insulating homes with a product that is:
- Grown and processed in the UK — low embedded carbon
- Fully biodegradable at end of life
- Carbon sequestering — wool stores atmospheric carbon
- Supporting Scottish sheep farming as a by-product
- Safe for installers, homeowners and the environment
Even our Earthwool choice is intentional — 80% recycled glass content with a bio-based binder instead of the formaldehyde used in standard glass wool. Every product decision is made with environmental performance in mind.
0
Synthetic fibres in sheep's wool
80%
Recycled content in Earthwool
35%
Max heat lost through roof
2045
Scotland's Net Zero target
Our Process
Simple, Clean, No Surprises
Free Survey
We visit, assess your loft or floor void, check access, measure up, and identify any existing insulation issues.
Written Quote
Clear written specification. We recommend the right product — sheep's wool or Earthwool — for your property type, and give you a fixed price with no hidden extras.
Clean Installation
We protect your space, work efficiently, and leave no mess. Loft jobs are typically done in a single day. Underfloor via access void means zero disruption to your rooms.
Certificate & Guarantee
Written completion documentation issued on the day. All work guaranteed.
Customer Reviews
What Our Insulation Customers Say
"Despite the job of removing the old insulation being particularly messy and unpleasant, it was done without any mess in the house. The work was completed to an excellent standard, efficiently and at a very competitive price."
"Envirosmart upgraded our underfloor insulation and loft insulation to help improve the energy use of our home. Craig and his team were great from start to finish."
Questions
Insulation FAQs
Often, yes. Many lenders and buyers' surveyors are cautious about spray foam on roof timbers because it hides their condition. Removal with written evidence is the most common way forward, but every lender decides case by case, so check with your lender or broker first. We provide a written removal report with before-and-after photos.
No, not any more. We carried out grant and ECO-funded insulation for around 10 years, but the schemes became more about paperwork than good work: assessors sent up from England who could not even fit through a loft hatch, endless forms and jobs held up for weeks. Most of our work was already private and commercial, so we decided to put all our effort into making that service better. You deal directly with our own installers and get a fixed written quote after a free survey.
Sheep's wool is particularly well suited to Scottish properties for several reasons. First, it naturally manages moisture — it can absorb up to 30% of its own weight in water and release it without degrading thermally or structurally. This is critical in older Scottish stone buildings where some moisture movement through the fabric is normal and expected. Second, it's a genuine eco product — British grown, biodegradable, carbon sequestering, and a by-product of Scottish farming. Third, it's completely safe to install and live with — no glass fibres, no chemical irritants, no long-term health concerns. We recommend it especially for older properties and any owner who cares about environmental credentials.
Yes — we work across both private residential and commercial properties. On the commercial side this includes agricultural buildings, workshops, warehouses and light industrial units where loft and roof insulation makes a significant difference to working temperatures and energy costs. All our work is privately contracted — we don't operate under government-funded schemes.
In pure thermal conductivity terms they're very close — sheep's wool typically achieves λ0.035–0.038 W/mK vs Earthwool's λ0.044 W/mK, so sheep's wool is marginally better thermally. Both achieve excellent results at the recommended installation depths. The key differences are moisture management (sheep's wool wins for older buildings), environmental credentials (sheep's wool is fully natural and biodegradable), acoustic performance (sheep's wool is significantly better), and cost (Earthwool is typically more cost-effective for standard installations). We recommend the right product for your specific property and circumstances — not one-size-fits-all.
Underfloor insulation using wool rolls works for suspended timber floors — where there is a void beneath the floorboards. This is very common in traditional Scottish housing including tenements, Victorian and Edwardian semis, and pre-1960s houses. Solid concrete floors require a different approach (typically rigid PIR board under screed, which involves lifting the floor) — we don't install that system. If you're not sure what type of floor you have, we'll confirm during the free survey.
Our own insulation team covers Central Scotland — Glasgow, Edinburgh, Ayrshire, Lanarkshire, Stirling, Falkirk and West Lothian. If you are just outside these areas, call 0800 861 1394 and we will tell you straight away whether we can help.
Private Clients & Commercial
Start Your Free Survey Request
Takes 2 minutes. We'll be in touch within one business day to arrange your free no-obligation survey and written quote.