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Internal Wall Insulation in Croydon

Croydon's housing is overwhelmingly Victorian and Edwardian terraces with solid 9-inch brick walls — meaning external or internal wall insulation usually delivers the biggest energy savings. The 1930s semi-detached belt around Shirley and Addiscombe is also prime EWI territory.

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PAS2030-19 CertifiedTrustMark Approved20+ Years Experience

Why Croydon homes benefit from internal wall insulation

Real comfort improvement

Most Croydon homes lose 25-35% of their heat through uninsulated walls or roofs. Internal Wall Insulation cuts that loss dramatically and eliminates the cold spots and draughts that drive heating costs up.

Lower bills

A typical 3-bed home sees £300-£700 a year in heating bill savings depending on starting point and tariff. Combined with grant funding, payback periods of 4-7 years are realistic.

Adds value

Energy Performance Certificates feed directly into property valuations. Lifting an EPC band — common after this work — typically adds 1.5-3% to a home's sale price.

How we work in Croydon

A clear, honest, no-pressure process from first call to final sign-off.

1

Free survey

We visit your Croydon property, measure up, and assess wall and roof construction.

2

Written quote

A clear fixed-price quote within 24 hours, broken down by labour, materials and any extras.

3

Installation

PAS2030-certified installation by our own trained team — no subcontractors.

4

Sign-off

Manufacturer-backed guarantee, TrustMark paperwork, and aftercare contact.

Grants available for Croydon homeowners

We're TrustMark-registered for ECO4 and the Great British Insulation Scheme. If your household qualifies, the work can be fully or partly funded — we handle the application end-to-end.

Check my eligibility

Frequently asked questions

How much does internal wall insulation cost in Croydon?
Pricing varies by property size, access and chosen materials. As a guide, expect £50-£140 per m² for full-system jobs. Every quote is free, fixed and includes labour, materials, scaffold (where needed) and making good — no surprises.
Do you handle planning permission for internal wall insulation in Croydon?
Internal Wall Insulation usually falls under permitted development, but conservation areas (parts of Croydon are typically affected) and listed buildings need consent. We'll check your address against Greater London planning records during the survey and, where required, prepare drawings and submit on your behalf.
Are you certified to install internal wall insulation?
Yes — PAS2030-19 and TrustMark accredited, fully insured, and members of the relevant manufacturer-approved installer schemes (Kingspan, ROCKWOOL, SWIP, STEICO, Celotex). All work is backed by a written guarantee.
Will the work disrupt my Croydon home?
We minimise disruption by working in clearly defined zones, using dust-suppression methods, and protecting floors and furniture. For external work, scaffolding is the only outward sign — internal work is contained to one or two rooms at a time.

Other areas we cover near Croydon

We serve the wider Greater London area — here are a few of our most popular nearby locations.

Internal Wall Insulation in BromleyInternal Wall Insulation in SuttonInternal Wall Insulation in Lewisham

Get a free quote for Croydon

Leave your details and we'll call you back within one working day to arrange a free survey.

We typically respond within a few hours during working hours.