Spray Foam Insulation
Control heat, condensation and noise with insulation suited to the application
LJ Solutions installs polyurethane spray foam insulation for buildings, containers and specialist agricultural, marine and industrial applications. We help you choose an option that suits the space, your priorities and the way the building will be used.
More than simply keeping heat inside
Good insulation helps the whole building feel easier to live or work in. Spray foam also seals the small gaps that allow draughts and uncontrolled air movement.
More consistent comfort
Reducing heat loss and draughts helps rooms stay closer to the temperature you want, with fewer cold areas around walls, ceilings and difficult junctions.
Improved energy efficiency
A continuous insulation and air-sealing layer can reduce the amount of heating or cooling needed to maintain a comfortable indoor environment.
Condensation control
Keeping internal surfaces warmer and limiting warm, moist air reaching cold surfaces can reduce the conditions that allow condensation to form.
Insulation options for different spaces
There is no single thickness or foam type that suits every building. We consider the construction, available space, required performance and whether the area is internal or exposed.
Closed-cell spray foam
A dense, high-performance option that combines insulation with excellent air sealing. It is well suited to restricted spaces, metal buildings, containers and other demanding applications.
Explore closed-cell spray foam →Open-cell spray foam
A lighter and more economical option for suitable internal areas. It expands to fill irregular spaces and can also help reduce sound transfer through the building envelope.
Injection and pour foam
Foam can be injected or poured into selected enclosed cavities where conventional spray access is not available. The cavity and construction need to be assessed first.
Explore injection and pour foam →Where spray foam insulation can be used
Spray foam is particularly useful around complex shapes, tight spaces and substrates where a continuous air-sealing layer matters.
Homes and renovations
Roofs, ceilings, walls, floors and difficult junctions where comfort, air sealing and efficient use of space are important.
Containers and metal buildings
A continuous layer helps manage heat transfer and condensation against steel surfaces while fitting around framing and corrugations.
Explore container insulation →
Specialist buildings
Workshops, agricultural buildings, marine spaces and selected commercial projects with unusual shapes or performance requirements.
Insulation and ventilation work together
Spray foam reduces uncontrolled air leakage. That is good for comfort and efficiency, but a well-sealed home still needs a sensible way to bring in fresh air and manage indoor moisture.
- Use kitchen and bathroom extraction where moisture is produced
- Consider planned ventilation for tightly sealed homes
- Keep roof spaces and building cavities detailed for the chosen system
- Confirm how heating, ventilation and insulation will work together
A straightforward insulation process
We will ask a few practical questions first, then confirm whether spray foam is suitable and what preparation is needed.
Tell us about the space
Send the location, approximate dimensions, photographs and what you want to improve.
We assess the application
We consider access, substrate, existing linings, services, ventilation and the required insulation performance.
Preparation is confirmed
Areas that need protection, access requirements and any work needed before spraying are agreed.
Foam is installed
The selected system is applied to the agreed area and thickness, with the site left ready for the next stage of work.
Questions homeowners often ask
The detailed answer can change with the building, but these are useful starting points.
Will spray foam cause moisture problems?
Correctly selected and installed foam helps manage condensation by limiting warm, moist air reaching cold surfaces. The overall roof, wall or floor build-up and the building’s ventilation still need to be considered.
Does spray foam sag or settle?
Spray foam adheres to the prepared substrate and does not slump like loose-fill insulation. Its performance depends on the correct product, thickness, substrate and installation.
How much insulation do I need?
That depends on the building element, foam type, available depth and the required R-value. We confirm a suitable thickness for the actual application rather than using one figure for every job.
Can spray foam be used in any home?
It is versatile, but not automatic. We need to understand the construction, condition, moisture sources, access and any fire or lining requirements before recommending it.
What to send us
You do not need a complete specification. A few clear details and photographs are usually enough for us to start assessing the job.
- Property location
- Area or approximate dimensions
- Roof, wall, floor, container or cavity
- Internal or external application
- Current photographs and access information
- New build, renovation or existing building
- Any drawings or required R-value
- Your preferred timing
Want a warmer, more comfortable building?
Send us a few photographs and the approximate size of the area. We can tell you what else is needed and discuss the insulation options that suit the space.