Island Warranties - construction insurance
Cranes above an apartment block under construction

Structural warranties for every type of island development

New build houses, apartments, self-build homes, conversions, affordable housing and commercial schemes in Guernsey, Jersey and the Isle of Man - each with cover that fits how it is being built.

  • Instant response
  • Insurer quotes usually within one working day of your proposal
  • UK FCA Regulated Broker
  • 10 and 12 year cover
  • Large and small Island sites welcome

New build houses

New build house warranties

Whether it is a single plot, a pair of semis or a small estate, each new home gets its own final certificate at completion, which the buyer's lender and advocate will ask to see.

  • Traditional masonry, timber frame and modern methods of construction
  • Phased sites, with homes certificated as each phase completes
  • 10 year cover as standard, 12 years available from some providers
Newly built brick houses on a residential street
Brick apartment building under construction with a hoist

Apartments

Apartment and flat warranties

Blocks of flats bring shared structure, communal areas and often buyers who pay deposits off plan. Providers look closely at fire safety, cladding and the build method, and we make sure those questions are answered early.

  • Low-rise and mid-rise apartment blocks
  • Certificates for each apartment plus the common parts
  • Optional insolvency cover for buyers' deposits, from some providers

Self-build

Self-build home warranties

Building your own home on the islands? Your self-build lender will almost certainly want a structural warranty or a professional consultant's certificate before it releases the final funds - and a future buyer's lender will want one too. Register before you start and the provider's surveyor will inspect as you go.

Affordable housing

Affordable and social housing warranties

Housing associations, trusts and developers delivering affordable homes need cover that satisfies funders and, where homes are sold, buyers' lenders. We arrange warranties for rented and shared ownership schemes as well as homes for sale.

Conversions and renovations

Conversion warranties

Turning a barn, farmhouse, chapel, hotel or office into homes means the warranty has to cover the existing structure you keep as well as everything new. Providers usually want a structural survey of the building before they quote.

  • Granite and stone barns and farm buildings
  • Commercial buildings converted to apartments
  • Major renovations that create new homes
Old stone barn ready for conversion into a home
Exposed oak roof timbers in a converted building

Mixed use and commercial

Commercial and mixed use latent defects cover

Shops with flats above, offices, industrial units and other commercial buildings can also be covered. Funders, purchasers and tenants often ask for latent defects insurance so they are not left exposed to hidden structural problems.

  • Residential over commercial, with cover for both parts
  • Offices, retail and light industrial units
  • Policies that can usually pass to later purchasers and tenants

Not sure where your project fits?

Most schemes are a mix. Tell us what you are building and we will find the providers who cover it on your island.

Tell us what you are building

Give us the basics of your development and we will come back with the providers likely to cover it and what they will need.

  • Takes under a minute
  • Instant reply by email with your reference
  • Insurer quotes usually within one working day of your completed proposal
  • Guernsey, Alderney, Sark, Jersey and the Isle of Man
  • Free and no obligation

Already filled in a proposal form in Word? Upload your Word document and we will prefill the full proposal for you.

We are a broker, not an insurer. Cover is provided by the warranty provider named in your quotation.

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