Chelsea Contractors Ltd Appointed for Mayfair Apartment Refurbishment

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Chelsea Contractors Ltd has been appointed to deliver the refurbishment of a 160m² apartment in Mayfair, London.

The project includes the construction of new insulated wall and floor structures, complete first-fix electrical and plumbing installations, a new heating system, Daikin air conditioning, MVHR ventilation, bespoke joinery, plastering, decoration, and the installation of a high-spec client-supplied kitchen, flooring, doors, and sanitaryware.

Works are expected to take approximately 6–8 months, with close coordination alongside the design team to deliver a premium finish that reflects the standards expected in one of London’s most prestigious residential locations.

We look forward to sharing progress as the project moves forward.

Estates – Find your perfect investment opportunity

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Chelsea Estates is our property platform designed to help homeowners, investors, landlords, and developers make smarter property decisions.

Every property is analysed beyond its current condition, highlighting development opportunities such as extensions, loft conversions, refurbishments, and other value-adding potential. Each listing includes key investment metrics, including estimated build costs, Gross Development Value (GDV), projected uplift in value, return on investment (ROI), rental potential, and overall project feasibility.

For those considering a purchase or development, we also offer professional Investment Assessments and Development Feasibility Reports. These detailed reports provide build cost estimates, GDV analysis, comparable evidence, planning and development opportunities, risk assessments, financial appraisals, and tailored recommendations to help you invest with confidence.

Whether you’re searching for your next home, evaluating a development opportunity, or looking to maximise the value of an existing property, Chelsea Estates combines property expertise with real construction knowledge to provide insights that go far beyond a traditional estate agency.

Go to Estates

How to Save £10,000–£100,000+ on Your Build Before It Even Starts

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How to Save £10,000–£100,000+ Before Your Build Starts
Most overspending doesn’t happen during the build — it happens before work even begins.

Wrong quotes. Poor sequencing. Overpriced labour.

👉 This is where projects lose the most money.
You Don’t Need to Overpay to Build Properly
Most people think higher cost = better build.

Reality: better structure = better cost + better outcome.

👉 Build properly without paying full contractor markup.
Set Up Your Project Before You Build
Planning a refurbishment, extension or loft?

👉 This is where you save the most money.

Build closer to direct cost.
Why Your Builder Quote Is Higher Than the Real Cost
Most quotes include hidden markups, inefficient sequencing, and unnecessary subcontract layers.

You’re not just paying for the build — you’re paying for how it’s structured.

👉 Without clarity, you’re already over budget.
Build Closer to Direct Cost
We help you understand your real build cost, structure your project properly, and avoid inflated pricing decisions.

👉 Build closer to direct cost, not marked-up cost.
Everything Set Up Before You Build
✔ Cost breakdown (Excel + PDF)
✔ Construction programme (timeline)
✔ Build sequencing & structure
✔ Labour, trades & supplier introductions
✔ MEP drawings & scope (Pro+)
✔ Building Control setup
✔ Steel coordination (Pro Max)

👉 Avoid costly mistakes before spending.
Choose the Right Level of Support
Cost Control — Core Savings
Understand your real cost and plan properly

Cost Control Pro — Maximum Savings
Set up your project to build close to direct cost

Cost Control Pro Max — Enhanced Support
Hands-on guidance, coordination and tracking
Designed to Pay for Itself
This service helps you build more efficiently, avoid mistakes, and improve procurement decisions.

👉 Many projects recover the fee through better cost control alone.
Real Project Benchmarks
Brentford → ~£91,573
Hackney → ~£104,656
Dalston → ~£181,733

Based on accurate internal project accounts — full breakdowns available to clients.

Property Care Plans – Get Covered Today

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Property Care Calculator

✔
Instant maintenance pricing: Enter your property size and instantly see the annual cost for Property Care plans.
✔
Simple plan comparison: Compare Essential, Total and Complete care plans to find the right level of support.
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Preventative property maintenance: Plans include scheduled servicing visits to keep systems operating safely.
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Compliance support: Gas and electrical safety checks can be organised through a single service.
✔
Order online: Activate your Property Care plan directly through the website without waiting for quotes.

Order Your Property Care Plan

The Property Care Calculator allows homeowners and landlords to organise property maintenance quickly and efficiently. Simply enter your property details, compare available plans and activate cover online.

✔ Instant plan calculation
✔ Clear plan comparison
✔ Online activation
✔ Managed property maintenance

Property Care Plans Overview

Service Essential Total Complete
Preventative Maintenance ✔ ✔ ✔
Compliance & Safety ✔ ✔ ✔
Reactive Maintenance — ✔ ✔
Monthly Support Visits — — ✔
Plans scale with property size and can be ordered directly using the Property Care Calculator.
Example Property Care Scenario
A typical 5-bedroom London home may require:
  • Annual boiler servicing
  • Gas safety certificate
  • Electrical safety checks
  • Occasional plumbing or electrical repairs
Using the Property Care Calculator, the homeowner can select their property size, review available maintenance plans and activate cover online in minutes. This replaces the need to organise multiple contractors and simplifies ongoing property maintenance management.
Property Care plans combine preventative maintenance, compliance checks and reactive maintenance coordination into a single service for modern homes.

Benefits of MVHR for a London Home

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MVHR (Mechanical Ventilation with Heat Recovery)

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Lower energy bills: Recovers ~70–90% of heat from exhaust air, reducing heating demand—useful in London’s mild but long heating season.
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Better air quality: Constant fresh, filtered air helps remove pollutants, allergens, and traffic-related NO₂ common in London.
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Moisture & mould control: Balanced ventilation reduces condensation—ideal for larger, well-insulated homes.
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Comfort & consistency: Even temperatures, fewer draughts than window ventilation.
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Quiet & secure: Less need to open windows (noise, security, pollution).
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Future-proofing: Works well with airtight builds, heat pumps, and helps meet Part F/L compliance.
Real-world performance example
A recent client installation in a mid-terrace house with an L-shaped loft conversion and side return extension combined:
  • MVHR system
  • Air source heat pump
  • Upgraded insulation to the existing house floor and external walls
The property now operates without any gas connection, and the total annual cost for electricity, heating, and hot water is approximately £1,300 per year — around £108 per month. The home has also been future-proofed for a 6kW solar PV installation; if installed, this could generate around £1,500 per year, meaning the home may not only eliminate energy bills but potentially produce a net annual saving.
This shows how MVHR, when integrated with good insulation and a heat pump, can deliver low running costs, excellent comfort, and a fully electric, future-ready home.

Order Your MVHR Now

If you’re planning a refurbishment, extension or loft conversion, we can design and install a fully integrated MVHR system tailored to your home, layout and build programme.

✔ System design & specification
✔ Supply & professional installation
✔ Commissioning & handover
✔ Part F / Part L compliance

AI Analysis of our Instant Project Price Calculator

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Our new Project Price Calculator for London refurbishments, extensions & loft conversions

We’ve launched a new way to price and plan building projects. Get a clear project estimate instantly — then book a Project Scope Review to refine costs, assess feasibility, and plan next steps.

Clear price. Clear rules. Clear commitment.
No negotiations, no “we’ll confirm later” — the calculator sets the commercial baseline from day one.

Use our calculator to explore how your project could be priced — start with simple inputs and get a clear estimate.

Why we built the calculator

Most homeowners want one thing early: a realistic number they can trust. This calculator applies the same pricing logic we use internally, so the first number you see is grounded in how projects actually run on site.

Built on real data.
Before launching, we tested the calculator against our completed London projects to check £/m², margins and performance over time.

This summary shows the real projects we analysed — the same projects that informed how the calculator models cost and pricing.

Historic profit margins from past London projects — showing the pricing discipline behind our approach.

As projects became more complex, pricing matured too — this view helped shape the calculator’s logic.

Key insight: Pricing upfront based on real work means clearer expectations and fewer surprises on site.

How instant booking works

Once you’ve built your quote, you can book instantly. The calculator price becomes the commercial baseline — no renegotiation stage and no waiting for revised estimates.

Project Scope Review
Book a professional site consultation to assess feasibility, refine costs, and plan next steps. The fee is deducted from your project if you proceed.

  1. Booking confirmed
  2. Measurement verification
  3. Programme & sequencing
  4. Contract documentation
  5. Start on site with expectations aligned

Why instant booking works

  • Removes pricing uncertainty early
  • Eliminates weeks of back-and-forth estimating
  • Sets a clear commercial baseline
  • Lets projects move forward with confidence

Try the calculator

If you’re planning a refurbishment, extension, loft conversion — or a combination —
you can now build your quote online and book instantly.


Build your quote & book instantly