Essential Warranties for Bespoke Home Builds in the UK

Essential Warranties for Bespoke Home Builds in the UK

May 02, 20252 min read

When building a bespoke home, peace of mind starts with proper planning. Use this guide to ensure your investment is protected from the ground up.


1. New Home Warranty (10-Year Structural Cover)

What it is:
A government-mandated warranty covering structural issues for ten years on new builds and conversions.

Why it matters:
Protects against major design, materials, and workmanship faults.

Must-Have For:
✔️ Every new or newly converted home
✔️ All self-build or custom home projects

build zone

2. Fixed Price Guarantee

What it is:
An agreed total cost for your bespoke build, detailed in the initial contract.

Why it matters:
✔️ No surprise charges
✔️ Full transparency from the start
✔️ Better financial planning

Top Tip:
Avoid open-ended contracts. Insist on a detailed cost breakdown.


3. Completion Date Guarantee

What it is:
A written guarantee stating when your home will be finished.

Why it matters:
✔️ Helps plan your move
✔️ Holds builders accountable
✔️ Reduces risk of costly delays

Recommended For:
All bespoke construction projects, regardless of size.


4. Builder’s Insurance: What to Check For

Insurance TypeWhat It CoversEssential ForPublic LiabilityInjuries/damage to third partiesAll building sitesEmployer’s LiabilityClaims from staff for injury or illnessProjects with employeesContractor’s All RiskProperty damage and third-party claims during constructionOngoing buildsProfessional IndemnityNegligence from architects, engineers, and other professionalsDesign-heavy projects.

Always Ask For:
✔️ Proof of active policies
✔️ Coverage details specific to your project


5. Deposit Protection Insurance

What it is:
Insurance that protects your upfront payments if your builder cannot complete the job.

Why it matters:
✔️ Peace of mind during long-term projects
✔️ Ensures funds are not lost if something goes wrong

Often Overlooked—But Crucial


Smart Planning = Fewer Surprises

Planning ahead with the right protections in place reduces stress and keeps your project on track.

Checklist Before You Start Construction:

  • Confirm all warranties and insurances

  • Review all builder documents carefully

  • Include timeframes, costs, and guarantees in writing

  • Choose experienced bespoke builders with a solid track record


Ready to Build with Confidence?

At Mosaic Bespoke, we support you through every phase of your custom build—ensuring all the legal, financial, and structural safeguards are handled professionally.

🔨 Your dream. Our craftsmanship.

Let’s create something extraordinary—safely, smoothly, and stress-free.

Guiding homeowners through the journey of building luxury, bespoke homes. Development Director at Mosaic Bespoke Ltd | Passionate about creating sustainable, high-quality living spaces tailored to your unique lifestyle.

Kevin Edge

Guiding homeowners through the journey of building luxury, bespoke homes. Development Director at Mosaic Bespoke Ltd | Passionate about creating sustainable, high-quality living spaces tailored to your unique lifestyle.

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