Insulation services

Internal wall insulation that improves comfort and reduces heat loss.

If your home feels cold, takes ages to warm up, or you struggle with cold wall surfaces, internal wall insulation can make a noticeable difference. We help you choose the right method for the property and guide you through funding eligibility if it applies.

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Warmer rooms

Reduce cold spots and keep heat in for longer.

Lower running costs

Less heat escaping means less demand on your heating.

Right method

Boards or a stud wall system, based on the wall and room use.

Clear guidance

Simple advice and a tidy install, with disruption kept sensible.

What is internal wall insulation?

Internal wall insulation adds a thermal layer to the inside face of external walls. It helps reduce heat loss through solid walls and improves comfort by warming up internal surfaces.

  • Helps rooms feel more consistent, not warm in the middle and cold near walls
  • Reduces that cold wall feeling that can trigger condensation in some homes
  • Works well when external wall insulation is not suitable or not preferred
Good to know

Internal wall insulation is often chosen for homes with solid walls, or where exterior changes are not possible or wanted.

See the benefits View all services
Insulation work taking place inside a property

How it is installed

Two common approaches. We recommend what suits your walls, rooms and budget.

Insulated plasterboard (boards)

Rigid insulated boards fixed to the internal wall, then finished ready for decorating.

Fast installClean finishCommon choice
Stud wall with insulation infill

A frame built inside the room, filled with insulation such as mineral wool, then boarded and finished.

FlexibleGood for uneven wallsService routes
Making good and detailing

Proper sealing and finishing to reduce drafts and help the insulation perform as intended.

Draft reductionMoisture awareTidy handover
Quick tip

Insulation works best alongside the right ventilation and heating controls, so the home stays warm without trapping moisture.

Benefits of internal wall insulation

The biggest win is comfort. Rooms hold heat for longer, walls feel warmer, and the home becomes easier to keep at a steady temperature.

✓
Warmer internal surfacesLess cold wall chill, fewer cold spots near external walls.
✓
Reduced heat lossHelps stop warmth leaking out through solid wall construction.
✓
Potential to cut running costsLower heat demand means your heating can work less to maintain comfort.
✓
Improved room feelRooms tend to feel less draughty and more stable day to day.
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Home improvement work inside a property

What to consider before you install

Internal insulation is effective, but it does take planning. Here is the honest view.

It reduces room size slightly

Any internal build-up takes a little space. We advise what thickness makes sense.

Practical planningRoom by room
There is some disruption

Skirting boards, sockets, radiators or fittings may need adjustment during the work.

Tidy installsClear steps
Detailing matters

Proper sealing and moisture-aware work helps prevent drafts and keeps performance strong.

Best practiceLong term results

How the process works

Simple steps, clear advice, and a neat finish.

1) Quick details

Tell us the property type, postcode, and which rooms feel cold.

FastSimple
2) Assess and recommend

We check the best method and highlight any moisture or ventilation considerations.

Right methodHonest advice
3) Installation

Work is planned to minimise disruption, with a tidy finish and clear updates.

RespectfulClean finish
4) Handover

We explain what has been done, and the best way to run the home for comfort.

Clear guidanceSupport
Did you know

Warmer internal wall surfaces can reduce the likelihood of condensation forming on cold internal wall areas.

You may qualify for funded insulation

If you are eligible, funding can cover some or all of the cost. Use the hub for a clear route, then we will guide you through the next steps.

Check eligibility now Ask a question

Useful related pages

If you are looking at a wider insulation plan, these help:

Cavity wall insulation Loft insulation Ventilation

Internal wall insulation FAQs

Straight answers to the common questions.

Is internal wall insulation suitable for all homes?
It suits many properties, especially solid wall homes, but it depends on room use, existing damp issues, and how much space you can give up. We will advise the best option after a quick assessment.
How much disruption is involved?
There is some disruption because work is inside the home. Skirting boards, sockets, radiators or fittings may need adjustment. We plan the job to keep it tidy and minimise downtime.
Will it help with condensation?
Warmer internal surfaces can reduce condensation risk, but ventilation still matters. If humidity is high, we may recommend ventilation improvements alongside insulation.
Can it be funded?
In some cases yes, depending on eligibility. Use the eligibility hub and we will confirm the best route for your home.

Get advice or a quote

Send the basics and we will come back with the best next step.

Helps us advise quickly on options and coverage.
Email or phone is fine. Add whichever you prefer.
The more detail you share, the faster we can recommend the right approach.
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Quick links

If you are building a full comfort plan, these pages help.

Eligibility and Funding Hub

Get a clear answer in one place.

Check eligibility
Loft insulation

Often a strong first step for comfort and savings.

View page
Ventilation

Important if you are improving insulation in the home.

View page