Urgent Insulation Problems: What to Do First
If failed insulation has led to water coming in, a wall or ceiling you are worried about, electrical danger or serious damp and mould, start here. This page gives general safety steps and who to contact. We are an advice and introduction service, not an emergency service.
Is Anyone in Danger Right Now?
Call 999 if:
- Medical emergency: for example severe difficulty breathing, or an asthma attack where the reliever inhaler is not helping
- Immediate danger to people: a ceiling, wall or section of render that looks about to fall
- Fire: including smoke or burning smells from electrics
Emergency numbers
- 999: immediate danger to life
- Gas emergency (Great Britain): 0800 111 999, free, 24 hours, if you smell gas or suspect carbon monoxide
- 105: free, to report power cuts or electrical hazards on the network
- NHS 111: medical help that is not an emergency
Then, once it is safe:
- 1Keep people away from the danger: close off affected rooms or areas below loose render
- 2Water near electrics: do not touch switches if you are standing in water; turn the electricity off only if it is safe to do so
- 3Gas or carbon monoxide: stop using appliances, open doors and windows, get everyone out and call 0800 111 999. If insulation work covered vents or flues for a gas appliance, do not use it until a Gas Safe registered engineer has checked it
- 4Take photos and tell the installer in writing. ECO4 or GBIS wall insulation: contact TrustMark (external) or Ofgem (internal) as well
- 5If you rent: tell your landlord in writing. In England, social landlords must make emergency hazards safe within 24 hours under Awaab's Law. Private renters can ask the council's environmental health team to inspect
What Kind of Problem Are You Facing?
Select your situation for general next steps
Who to Contact
Schemes, Guarantees and Councils
TrustMark
Free Find & Fix audit for ECO4/GBIS external wall insulation, and complaints about TrustMark-registered businesses
Phone: 0333 555 1234 (option 1 for Find & Fix)
Find & Fix bookings: onsitebookings@trustmark.org.uk
Ofgem ECO contact centre
Concerns about ECO4/GBIS external or internal wall insulation. Ofgem does not handle individual complaints about installers.
Freephone: 0808 169 4447 (Monday to Friday, 9.30am to 4.30pm)
Email: ECOhelp@ofgem.gov.uk
Your local council
Environmental health can inspect rented homes with serious hazards such as damp and mould
Free Advice
Citizens Advice consumer helpline
Advice on consumer rights; can pass complaints to Trading Standards
Phone: 0808 223 1133 (Monday to Friday, 9am to 5pm)
Dispute Resolution Ombudsman
For TrustMark-registered businesses, after the business and its Scheme Provider have had the chance to respond. It cannot deal with compensation claims or businesses that have stopped trading.
Phone: 0333 241 3209
Your Rights, in Brief
General information, not legal advice. For your situation, speak to Citizens Advice or a solicitor.
Once the Immediate Danger Is Dealt With
If your external wall insulation was fitted under ECO4 or GBIS, start with TrustMark's free Find & Fix audit. For anything the free routes do not cover, we can introduce you to a specialist through Better Home Hub.
Sending an enquiry is free. Any survey or work is agreed and paid for between you and the specialist, who may pay Better Home Hub a fee. We do not provide emergency call-outs and cannot promise how quickly a specialist will respond. Check a specialist's registration, insurance and guarantee yourself, for example on the TrustMark, CIGA, PCA or RICS registers. To talk to Better Home Hub: 03330 505 281 or hello@betterhomehub.co.uk (not an emergency line).
Keep a Record
Installers, guarantee providers, auditors and complaints bodies will all ask what happened and when.
- • Damp, mould and water coming in, with wide shots and close-ups
- • Cracks, loose render or other damage
- • Blocked vents or condensation
- • Contract, quote or invoice
- • Guarantee certificate
- • Ofgem letter with your Unique Measure Reference Number, if you have one
- • Emails and letters with the installer
- • Notes of phone calls: date, who you spoke to, what was said
- • Any audit, survey or engineer reports
- • Receipts for emergency repairs or dehumidifiers
Photograph damage before cleaning or moving anything, follow up phone calls in writing, and keep copies of everything you send.
Sources
- National Gas: emergency contacts
- gov.uk: What to do during a flood (electricity safety and 105)
- NHS: When to use 111
- MHCLG, DHSC and UKHSA: Understanding and addressing the health risks of damp and mould in the home
- TrustMark: free Find & Fix audit offer
- TrustMark: complaints process
- Dispute Resolution Ombudsman: dispute resolution for TrustMark
- Ofgem: ECO complaints process
- DESNZ: Greater protections to restore families' trust in home upgrades (17 June 2026)
- gov.uk: Awaab's Law in the social rented sector
- The Housing Health and Safety Rating System (England) (Amendment) Regulations 2026
- Consumer Rights Act 2015, section 49
- Citizens Advice: consumer helpline
- CIGA: contact us
- RICS: Spray foam insulation consumer guide (March 2023)
- Property Care Association: sprayed foam insulation guidance
- HomeOwners Alliance: Spray foam roof insulation
Last reviewed September 2026.