Limited availability·Book a Consultation

Renovation Cost Calculators

Get accurate cost estimates for your renovation projects with our comprehensive calculators. Plan your budget with confidence using our industry-leading tools.

12+

Years Experience

500+

Satisfied Clients

Start calculating now

Trusted by London homeowners

5-star rated service with verified review proof across Google, Houzz, and MyBuilder.

Google 5
My Builder 5
Best of Houzz Award
cover photos

5 star rated and award winning renovation company

better homes on googlebetter homes on houzzbetter homes on houzzbetter homes on mybuilderbetter homes on houzz

Our Renovation Calculators

Accurate cost estimates for every type of project

Kitchen Renovation Calculator

Kitchen Renovation Calculator

Get an accurate estimate for your kitchen renovation project. Our calculator considers your kitchen size, materials, and specific requirements.

Key Features:

  • Kitchen size calculation
  • Material selection
  • Electrics & plumbing
  • PDF download
⏱️ 5-10 minutes🎯 95% accurate
Start Calculator
Bathroom Renovation Calculator

Bathroom Renovation Calculator

Calculate the cost of your bathroom renovation with our comprehensive tool. Includes tiling, fixtures, and underfloor heating options.

Key Features:

  • Bathroom size options
  • Layout changes
  • Tiling levels
  • Fixture selection
⏱️ 3-5 minutes🎯 90% accurate
Start Calculator
House Extension Calculator

House Extension Calculator

Plan your house extension with our detailed cost calculator. Covers single and double-storey extensions with various finishes.

Key Features:

  • Extension type
  • Size calculation
  • Finishing options
  • PDF download
⏱️ 8-12 minutes🎯 92% accurate
Start Calculator
General Renovation Calculator

General Renovation Calculator

Comprehensive calculator for general home renovation projects. Perfect for whole house refurbishments and interior design projects.

Key Features:

  • Room-by-room breakdown
  • Material selection
  • Labour costs
  • PDF download
⏱️ 10-15 minutes🎯 88% accurate
Start Calculator
BTU Calculator

BTU Calculator

Calculate the perfect BTU output for heating your room with gas or electric radiators. Get accurate heating requirements based on room size and insulation.

Key Features:

  • Room size calculation
  • Insulation assessment
  • Heating type selection
  • Cost estimates
⏱️ 3-5 minutes🎯 95% accurate
Start Calculator

Why Use Our Calculators?

Professional tools designed for accuracy and ease of use

500+ clients happy they chose us!

Don't take our word for it. Here's what they have to say about Better Homes.

  • Better Homes did a fantastic job carrying out a complete renovation of our 1930s ‘chalet bungalow’ in Chingford. Many thanks to the project managers - Gino, Celli and Elena - and to their entire team of craft workers

    Jack Robertson
    @jack_rob
    J
  • I couldn't recommend Celino and his team more highly. They were extremely professional, hardworking and have great attention to detail.

    Hunter
    @hunter_u
    H
  • I had our kitchen redone and couldn’t be happier! Celino’s team were amazing from start to finish. They worked so incredibly hard to get everything completed within time and at a high standard

    Alice Buchanan
    @ali_buch
    A

Benefits

Your Renovation Advantage

Discover the Better Homes advantage: unwavering commitment to quality, iron-clad guarantees, and award-winning customer service. Your dream renovation starts here.

  • Workmanship guarantee

    From bathroom renovations to extensions, our workmanship is guaranteed for up to 10 years, giving you peace of mind and lasting value.

  • Insurance protection

    We provide comprehensive insurance protection up to £10 million, safeguarding your investment and ensuring your project is in safe hands.

  • Customer service

    Try outstanding for a change. Our 5-star rated customer service and Houzz awards for service excellence speak for themselves.

Our pre-build approach

We have refined our process with you in mind. Our pre-build approach ensures you feel confident and informed at every step. With a customer-first mindset, we turn your vision into a clear, comprehensive, hassle-free plan.

Features Image

Steps

1

Initial Consultation: We begin with a friendly call to discuss your project, understand your needs, and align our expertise with your vision.

2

Preliminary Estimate: Using photos, emails, and listings, we provide an initial estimate to give you a clear starting point with no surprises.

3

On-Site Meeting: Once you are happy with the initial discussions, we schedule an on-site meeting to finalize details, assess your space, and align with your expectations.

4

Final Quote & Next Steps: After gathering all the details, we provide a final quote so you can move forward confidently, knowing exactly what to expect.

Schedule a call

Our Build Approach

Simple, fast and streamlined process

Hundreds of clients are thrilled about their new homes!

Don't take our word for it. Here's what they have to say about Better Homes.

    • I could not recommend them more highly. The whole process was so streamlined and efficient. They submitted a very detailed quote which was competitively priced, and went onto do the work very quickly to a high standard.

      L
      Louise Thorogood
      @louise
    • I couldn’t be happier with my kitchen and bathroom renovation. The better homes managed to bring my vision to life, I still can’t believe it is the same house...

      M
      Melina
    • The quality of workmanship is extremely high and they have managed to translate loose ideas out together on PowerPoint by me into reality.

      S
      Shyra Muthusamy
    • We have now worked with Celli, Gino and the team twice, once for a major renovation and once for some minor but important work, and both times we have been absolutely delighted with the service that they have provided.

      H
      HU-36197023
      @HU-36197023
    • The team holds themselves to high standards, and we couldn't be happier with the top-notch quality of the end result.

      K
      Knutt
    • After checking out loads of loft conversion companies in North East London, we finally decided to go with Better Homes for our hip to gable loft conversion. Just a couple of months after our first chat with Gino, we've got an amazing loft conversion, all done and dusted in just 9 weeks, just like they promised from the get-go.

      G
      George G

Recent Case Studies

A quick look at how we deliver trusted outcomes for London homeowners.

Guarantees that protect the work after handover

When you invest heavily in your home, you should know what happens after the builders leave. Our workmanship guarantees are there to give you clear protection and peace of mind.

  • 10 years

    Extension and loft conversion guarantee

  • 2 years

    Bathroom fitting and renovation guarantee

  • 2 years

    Kitchen fitting and renovation guarantee

  • 1 year

    Painting and decorating guarantee

Want the full guarantee breakdown?

Read it here

Extensions, loft conversions and renovations run properly

Ready to talk through your project?

Clear scope. Real guidance. No pressure.

Start with the right plan, not the cheapest promise

Book a consultation with Better Homes
Book a Consultation

FAQ

Frequently Asked Questions

  • They are intended for early-stage budgeting and decision support. Final costs depend on site constraints and full scope definition.
  • Yes. They are useful for shortlisting and comparing quote logic, assumptions, and overall value.
  • No. They provide strong directional guidance but do not replace full site-specific estimating and technical review.
  • Book a consultation to validate assumptions, refine scope, and convert estimate ranges into a project-ready plan.

Ready to start your renovation project?

Get accurate estimates, professional planning, and exceptional execution with Better Homes. Our calculators are just the beginning of your renovation journey.

Get your free consultation

The Knowledge Center

Where you actually learn new things

19 March 2026

How to finance a house extension or renovation in London (2026 guide)

Read more

12 March 2026

Home renovation cost in London: the complete 2026 price guide

Read more

2 March 2026

How much value does a house extension add in London? (2026 guide)

Read more

23 February 2025

How Much Does a Bathroom Renovation Cost in London in 2025?

Read more

Where We Work

Serving London's finest areas with exceptional home renovations

Better Homes proudly serves homeowners across London's most prestigious and vibrant areas. From the leafy suburbs of North East London to the bustling heart of Central London, our expert team brings exceptional craftsmanship and innovative design to every renovation project.

Whether you're looking to transform your bathroom, renovate your kitchen, or undertake a complete home renovation, we're here to bring your vision to life with our signature blend of quality, reliability, and attention to detail.

For the right project - contact us wherever you are

Get Your Free Quote