HOW TO HIRE · TRADES & CONSTRUCTION

How to hire a loft insulation installer in the UK
The checks, the questions and the paperwork.

Loft insulation needs no approval in England and no register applies. The checks that matter, VAT, grants, and what a good job looks like.

  • Search and compare — no account needed
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  • One score from Google, Trustpilot and Locufy reviews

THE 60-SECOND VERSION

Hiring a loft insulation installer in five steps

  1. Measure what is thereThe depth of the existing insulation and the loft area.
  2. Decide on storageBoarding over insulation needs raised supports so it is not squashed.
  3. Keep the eaves clearVentilation at the roof edge must stay open.
  4. Check VAT and grants0% VAT on installed loft insulation; Home Energy Scotland or Nest if you qualify.
  5. Look before you payEven depth, pipes and tank lagged, hatch insulated.

BEFORE YOU BOOK

Check before you book

No register applies

No licence or register applies to loft insulation installers in England, Wales, Scotland or Northern Ireland, and gov.uk lists insulating roof spaces among the work that needs no building regulations approval in England.

Check insurance and a written specification of the loft insulation instead. gov.uk →

TrustMark

TrustMark is the Government Endorsed Quality Scheme for work in and around the home; it is voluntary and registration is per trade.

Search the business on TrustMark for loft insulation. trustmark.org.uk →

Insurance and trader status

Ask who insures the trader doing the loft insulation and for how much; public liability is standard. The Consumer Rights Act 2015 covers the loft insulation when the provider is a trader, and a contract made off-premises or online can usually be cancelled within 14 days under the Consumer Contracts Regulations 2013 — less what was done if you asked for an early start, and not at all for goods made to your specification.

See the insurance certificate before you confirm the loft insulation; the Locufy profile shows the trader and ID-checked badges.

VAT

Installing loft insulation in a home is zero-rated (0%) until 31 March 2027, then 5% from 1 April 2027; the same material bought without installation, or fitted in a hotel or other commercial building, is standard-rated, and an installer over the £90,000 threshold must still register and show the VAT, at 0%, as its own line.

Ask for the VAT number and check the loft quote shows 0% on the installed insulation and that nothing on it is charged at the standard rate. gov.uk →

“What depth of loft insulation will you install?”

A good answer: A stated depth or performance, written on the quote, with the existing depth noted.

“How will you keep the eaves ventilated?”

A good answer: Eaves trays or spacers so the loft insulation does not block airflow.

“Can I still store things in the loft?”

A good answer: Yes, on boarding raised above the insulation so it is not squashed.

“What about the cold water tank and pipes?”

A good answer: Lagged, and the area under the tank left uninsulated so warmth keeps it from freezing.

“Will the loft hatch be insulated and draught-stripped?”

A good answer: Yes, as part of the loft insulation job.

“Will the 0% VAT rate apply?”

A good answer: Yes, on loft insulation installed in a home until 31 March 2027.

Getting the quote right

  • Loft area and the depth of insulation
  • Material named — rolls or blown fibre
  • Boarding on raised supports if included
  • Tank, pipes and hatch lagging
  • Who actually attends — the installers laying the insulation, employed or subcontracted — and the business's VAT number, with VAT at 0% on the installation shown as its own line

Walk away if

  • Stuffs insulation into the eaves
  • Squashes it under boarding laid straight on the joists
  • Adds standard-rate VAT to insulation laid in your loft
  • Leaves cables buried with no thought for them
  • Cold-call grant offers with no scheme named
LOW
£300
TYPICAL
£950
HIGH
£1,500

What a loft insulation installer costs: £300–£1,500 per job

Loft insulation is priced per job by the loft area, the depth needed and whether boarding is included; VAT is 0% on an installed home job. Loft Insulation price guide →

Guide prices compiled by the Locufy team from published Irish and UK provider price lists and 2026/27 cost guides. Updated 2026.

KNOW WHAT TO LOOK FOR? NOW FIND ONE

Loft insulation installers near you, with the badges that matter shown

ID checked, trader status and one score from every review — on the card, before you message anyone. Nearest first. No account needed to look.

Or post the job free and let them come to you.

  1. SurveyExisting depth, ventilation, wiring and tanks checked.
  2. PrepareEaves trays fitted; cables lifted where possible.
  3. LayInsulation laid between and over the joists.
  4. Board and lagRaised boarding if agreed; tank, pipes and hatch insulated.
  5. Hand overDepth recorded and the invoice handed over.

Joists
The timbers that form the loft floor.
Cross-laid
A second layer laid at right angles over the joists.
Eaves tray
A spacer that keeps airflow open at the roof edge.
Loft legs
Raised supports for boarding above the insulation.
Blown fibre
Loose insulation blown in, useful in awkward lofts.
Condensation
Moisture forming on cold surfaces when ventilation is blocked.

AFTER

When the job is done

Keep the invoiceWith the depth and material, for an EPC or a buyer.
Look in the loftEven depth, eaves clear, tank and pipes lagged, hatch insulated.
Check in the first cold snapNo condensation on the underside of the roof.
Leave the reviewOnly booked jobs can be reviewed on Locufy, so yours carries weight; if the loft insulation falls short, use the make-it-right step first and the provider is asked to fix it before the review is published.

MONEY BACK

Grants that may apply

Public schemes that can pay towards loft insulation in Scotland and Wales. Check eligibility and apply before work starts.

SCOTTISH GOVERNMENT (HOME ENERGY SCOTLAND) · GRANTVerified 16 Oct 2026

Home Energy Scotland grant and loan

up to £7,500 grantClean heating such as a heat pump: grant up to £7,500 plus an optional interest-free loan up to £7,500. Energy efficiency such as insulation: grant up to 75% of the cost, capped at £7,500, plus an optional loan up to £7,500. Rural and island homes can get up to £1,500 more on each.

Who: homeowners in Scotland; landlords, businesses and developers cannot apply

  • the improvement must be recommended in the home's Energy Performance Certificate, Home Energy Improvement Report or Home Renewable Selector Report
Official details on mygov.scot →
WELSH GOVERNMENT · GRANTVerified 16 Oct 2026

Nest

free improvementsThe Welsh Government describes the improvements as free to eligible households; no cash amount is published on the page.

Who: owner-occupiers and private tenants in Wales (not council or housing association tenants)

  • a means-tested benefit (such as Universal Credit or Pension Credit) or a low household income
  • EPC rating of 54 (E) or below, or 68 (D) or below where someone has an eligible health condition
Official details on gov.wales →

Schemes change. The amounts above were checked on the dates shown; the official page is the one that counts.

STEP 1Put it to the installer in writingDescribe the fault with the loft insulation, with photos, and say what would put it right. The Consumer Rights Act 2015 expects a trader to use reasonable care and skill; where that fell short you may require the work to be done again, or a lower price.
STEP 2Use Locufy's make-it-right stepRate the loft insulation under four stars and you are asked whether to send it to the provider first; we follow it through. Then the review goes up.
STEP 3Certification or grant problemsIf the loft insulation was MCS certified and is faulty, MCS takes complaints about its certified installers; grant problems go to Ofgem, which runs the Boiler Upgrade Scheme. For a dispute about the loft insulation with the trader, Trading Standards is reached through the Citizens Advice consumer helpline on 0808 223 1133 in England and Wales, Advice Direct Scotland on 0808 800 9060, or Consumerline on 0300 123 6262 in Northern Ireland.
STEP 4Money still in disputeIf the loft insulation is still not settled, you can claim without a solicitor: the small claims track takes claims up to £10,000 in England and Wales, simple procedure up to £5,000 in Scotland, and the small claims court up to £5,000 in Northern Ireland.

Hiring a loft insulation installer: questions people ask

gov.uk lists insulating roof spaces among the work that needs no approval in England.

No licence or register applies; check insurance, the specification and TrustMark.

£300–£1,500 a job, typically around £950. Topping up a small loft is cheapest; large lofts, blown fibre and boarding cost more. How the figure is built up is in the Loft Insulation price guide; search by postcode above to see what loft insulation installers near you quote.

Installed in a home, it is zero-rated until 31 March 2027, then 5%.

In Scotland, the Home Energy Scotland grant if the EPC or a report recommends it; in Wales, Nest for eligible households.

On raised supports, so the insulation keeps its depth.

MORE GUIDES

More hiring guides in trades & construction

How to hire: Insulation InstallerHow to hire: Cavity Wall InsulationHow to hire: Loft ConversionHow to hire: RooferHow to hire: Carpenter & JoinerHow to hire: Dry LiningHow to hire: BuilderHow to hire: Damp ProofingAll 701 hiring guides →

Loft insulation installers near you

Loft insulation installers in LondonLoft insulation installers in ManchesterLoft insulation installers in BirminghamLoft insulation installers in GlasgowLoft insulation installers in BelfastAll loft insulation installers on Locufy →Do it yourself: insulating a loft →

Sources — checked October 2026

  1. gov.uk — building regulations: when you do not need approval
  2. gov.uk — VAT on energy-saving materials and heating equipment (Notice 708/6)
  3. TrustMark — the Government Endorsed Quality Scheme
  4. mygov.scot — Home Energy Scotland grant and loan
  5. gov.wales — free home energy efficiency improvements from Nest: eligibility
  6. nidirect — energy saving grants in your area
  7. Consumer Rights Act 2015, section 49 — reasonable care and skill
  8. Consumer Rights Act 2015, section 54 — what you can ask for when a service falls short
  9. Consumer Contracts Regulations 2013, regulation 30 — the 14-day cancellation period
  10. Consumer Contracts Regulations 2013, regulation 28 — contracts the cancellation right does not cover
  11. Consumer Contracts Regulations 2013, regulation 36 — services started within the cancellation period
  12. Civil Procedure Rules Part 26 — the small claims track limit (England and Wales)
  13. Scottish Courts and Tribunals — making a claim under simple procedure
  14. nidirect — the small claims process (Northern Ireland)
  15. Energy-saving materials and heating equipment (VAT Notice 708/6) — 2.1 Zero-rated installations; 2.10 Insulation
  16. GOV.UK — VAT rates
  17. GOV.UK — Register for VAT: when to register