The average home renovation costs in 2026 can vary widely depending on the size of the property, the condition of the building and the type of work involved. In the UK, a complete renovation of a typical three-bedroom house can range from roughly £43,500 to more than £110,000, while a lighter refurbishment may cost considerably less.

There is no single price that applies to every renovation. Replacing flooring and repainting walls is very different from rewiring an entire property, replacing the roof or adding an extension.

This guide explains the main costs to consider, what different renovation projects can cost in 2026, and how to create a realistic budget before work begins.

What affects home renovation costs in 2026?

The final price of a renovation is influenced by several factors. Two houses with the same number of bedrooms can have very different renovation budgets because their age, condition, layouts and locations may be completely different.

The most important factors include:

• Property size and number of rooms
• Age and condition of the building
• Location within the UK
• Labour rates in your area
• Quality and quantity of materials
• Structural work required
• Plumbing and electrical work
• Whether the layout is being changed
• Planning or building regulation requirements
• Professional design and surveying fees
• Waste removal and site preparation
• Whether you use a main contractor or manage individual trades yourself

Older properties can be particularly difficult to budget for because problems may only become obvious after walls, floors or ceilings are opened up.

For example, a house that initially appears to need new decoration could also require rewiring, damp treatment, plumbing repairs or structural work.

Average home renovation costs in 2026 for a three-bedroom house

For a broad indication of the current market, a full renovation of a three-bedroom UK house can cost approximately £43,530 to £110,350, with a reported average of around £76,690. These figures are ballpark estimates rather than fixed prices and can vary significantly between individual properties.

A renovation at the lower end of the range might involve relatively straightforward improvements, while a project towards the upper end could include major repairs, new services, extensive plastering, a new kitchen and bathroom, roofing work and structural alterations.

Typical costs for major work can include:

Renovation work	Approximate 2026 cost
New heating system	£3,000–£8,500
Rewiring	£4,000–£8,500
Replacement windows	£2,500–£8,000
Replastering walls	£10,000–£15,000
New kitchen	£7,000–£25,000
New roof	£6,500–£18,000
Removing walls	£500–£3,500
Damp-proofing work	£500–£5,000

These figures should be treated as planning ranges. The exact quotation could be lower or higher depending on access, property condition, materials, labour and the complexity of the work.

How much does a kitchen renovation cost?

The kitchen is often one of the largest individual expenses in a home renovation.

A basic kitchen can be relatively affordable if the existing layout is retained and the plumbing, electrical points and appliances do not need major changes. A more expensive renovation may involve moving walls, relocating services, installing new appliances, replacing flooring and choosing bespoke units or premium worktops.

A new kitchen in a typical renovation can cost around £7,000 to £25,000, although projects outside this range are possible.

The biggest factors include:

• Cabinet quality
• Worktop material
• Appliances
• Kitchen size
• Plumbing alterations
• Electrical work
• Flooring
• Lighting
• Installation costs
• Whether the kitchen is standard or bespoke

Keeping the existing layout can sometimes reduce costs because fewer plumbing and electrical changes are required.

If the kitchen is being moved into an extension, the overall budget can increase substantially because the project includes construction as well as kitchen installation.

Bathroom renovation costs in 2026

Bathrooms can also consume a significant part of a renovation budget, particularly when plumbing or the room layout needs to change.

A basic bathroom remodel may cost around £1,500, while a more extensive project can reach £7,500 or considerably more. A typical UK bathroom renovation is often estimated at around £4,500, although the final figure depends heavily on the specification.

Costs can include:

• Bath or shower
• Toilet
• Basin and taps
• Plumbing
• Tiling
• Flooring
• Lighting
• Ventilation
• Storage
• Labour
• Removal of the existing bathroom

Changing the position of plumbing can increase the cost. Likewise, high-end tiles, bespoke furniture, walk-in showers and additional heating can push the budget higher.

Before starting work, it is worth checking whether the existing pipework, ventilation and waterproofing are suitable for the proposed design.

Flooring, plastering and decoration

Not every renovation needs major structural work. Some homeowners simply want to modernise the appearance of an existing property.

Flooring, plastering and decoration can still represent a substantial expense when carried out throughout an entire house.

For example, carpet replacement can start at around £30 per square metre, while other flooring materials can cost considerably more. Ceramic, stone, porcelain, timber and luxury vinyl flooring all have different material and installation costs.

Plastering can also vary significantly. A small repair is relatively inexpensive, whereas removing old plaster and replastering several rooms can become a major part of the renovation budget.

Decoration costs are affected by:

• Number and size of rooms
• Condition of existing walls
• Amount of preparation required
• Paint quality
• Number of coats
• Ceiling height
• Woodwork and trim
• Whether furniture needs to be moved or protected

If walls are in poor condition, simply painting them may not produce the expected result. Preparation, repairs and plastering should therefore be included in the budget.

Electrical and heating renovation costs

Electrical and heating systems are easy to overlook when planning a renovation because they are often hidden behind walls and ceilings.

However, upgrading these systems can be essential in older properties.

A complete rewire for a typical property can cost several thousand pounds. A new heating system can also cost several thousand pounds depending on the type of system, property size and equipment required.

Before renovating an older house, consider having the electrical installation and heating system assessed.

Potential work may include:

• Rewiring
• New sockets and switches
• Consumer unit replacement
• New lighting circuits
• Boiler replacement
• Radiators
• Pipework
• Heating controls
• Improved insulation

It is usually more practical to deal with major electrical and plumbing work before decorating, installing new flooring or fitting finished kitchens and bathrooms.

Roof and structural renovation costs

Structural work can have a major effect on the overall budget.

A new roof for a typical house can cost around £6,500 to £18,000, although the price depends on the roof's size, design, materials, access and condition.

Structural alterations can include removing walls, strengthening parts of the building, repairing foundations or replacing damaged structural components.

Removing a wall might cost hundreds or several thousand pounds depending on whether it is load-bearing and what additional structural support is required.

If a wall is potentially structural, it should not simply be removed based on appearance. Professional assessment may be required before construction begins.

How much does a house extension cost in 2026?

An extension is technically an addition to the property rather than simply an internal renovation, but it is often included in major home improvement plans.

In 2026, estimated UK extension costs vary considerably. A single-storey extension can range from around £30,000 to £140,000 depending on size and specification.

Another way of estimating the cost is by square metre. Some current industry estimates place standard single-storey extensions at roughly £2,200 to £3,300 per square metre before VAT, although simpler or more complex projects can fall outside this range.

For example, a 30-square-metre extension could therefore represent a substantial investment before kitchen fittings, professional fees and other project costs are considered.

An extension may require:

• Architectural or design work
• Structural engineering
• Planning permission where applicable
• Building regulations approval
• Foundations
• Drainage
• Insulation
• Windows and doors
• Roofing
• Electrical work
• Plumbing
• Heating
• Flooring
• Internal decoration

Small extensions can sometimes have a relatively high cost per square metre because fixed costs are spread over less floor area.

Loft and garage conversions

Converting unused space can be an alternative to building a new extension.

A garage conversion can cost roughly £7,500 to £20,000, while a loft conversion may cost around £27,500 to £75,000 depending on the design and property.

The final cost depends on whether the existing space is already suitable for conversion.

For a loft, important considerations include head height, roof structure, insulation, stairs, windows, fire safety and structural requirements.

A garage conversion may require insulation, damp-proofing, new flooring, windows, heating and changes to the garage entrance.

These projects should be assessed individually rather than relying solely on an average figure.

How much should you keep aside for unexpected costs?

One of the most important parts of renovation budgeting is allowing money for unexpected work.

A contingency fund can protect the project if problems appear after construction starts. A commonly suggested allowance is around 10% to 15% of the planned renovation budget.

For example, if your planned work costs £50,000, a contingency of 10% would be £5,000. A 15% allowance would be £7,500.

Older or poorly maintained properties may justify a larger contingency because there can be more uncertainty about what is hidden behind walls, floors and ceilings.

A contingency should not be treated as money that must be spent. If the project runs smoothly, it can simply remain available for future improvements or household expenses.

How to reduce renovation costs without cutting corners

Reducing costs does not necessarily mean choosing the cheapest materials or accepting poor workmanship.

Careful planning can often save money while maintaining a good standard.

Consider these approaches:

• Keep the existing layout where practical
• Compare several written quotations
• Choose durable materials rather than purely fashionable ones
• Complete essential structural work before cosmetic improvements
• Order materials carefully to avoid waste
• Avoid changing the design repeatedly during construction
• Decide on fixtures and finishes before work begins
• Consider which non-specialist tasks you can safely handle yourself
• Reuse suitable existing features where possible
• Buy standard-sized products where they fit the design

It is also worth distinguishing between things that need replacing and things that simply look dated.

For example, a solid internal door may only need sanding and repainting rather than complete replacement.

What should be included in a renovation budget?

A common mistake is to calculate the price of materials and labour but forget the other expenses surrounding the project.

Your budget may need to include:

Budget category	What to consider
Labour	Tradespeople and contractors
Materials	Timber, plaster, tiles, flooring and fittings
Kitchen	Units, worktops, appliances and installation
Bathroom	Sanitaryware, tiles, plumbing and fitting
Electrical	Wiring, sockets, lighting and consumer unit
Heating	Boiler, radiators, controls and pipework
Structural work	Walls, foundations and roof
Professional fees	Design, engineering and surveying
Permissions	Planning and building regulation requirements where applicable
Waste	Skips, disposal and site clearance
Contingency	Unexpected repairs and changes
Temporary accommodation	Possible additional living costs

If you are moving out during the renovation, remember to include accommodation and storage costs where relevant.

Should you renovate everything at once?

Not necessarily.

A whole-house renovation can be convenient because major work can be coordinated together, but it also requires a large amount of money and careful project management.

A staged approach can make sense when the budget is limited.

For example, a homeowner might prioritise:

1. Structural and safety issues
2. Roof and damp problems
3. Electrical and plumbing systems
4. Heating and insulation
5. Kitchen and bathrooms
6. Flooring and decoration
7. Cosmetic upgrades

The right order depends on the property.

It generally makes little sense to spend heavily on new decoration if major electrical, plumbing or structural work will soon require walls and ceilings to be opened.

What renovation work adds the most to the budget?

The most expensive work is usually associated with structural changes, large extensions, major kitchen and bathroom projects, new services and extensive repairs.

However, there is no universal ranking because the cost depends on the individual property.

For one house, replacing the roof may be the largest expense. For another, a kitchen extension or extensive rewiring could account for more of the budget.

The complexity of the work is often just as important as the size of the room.

A small bathroom with relocated plumbing can cost more than a larger bathroom where all the existing services remain in their original positions.

How to get a more accurate renovation estimate

Online averages are useful for creating an initial budget, but they should not replace quotations for a specific property.

Start by making a detailed list of the work you want completed. Separate essential repairs from improvements that can wait.

Then obtain quotations from appropriate tradespeople or contractors.

When comparing quotes, check whether they include:

• Labour
• Materials
• Removal of existing items
• Waste disposal
• Finishing work
• VAT where applicable
• Preparation work
• Necessary specialist services

A quotation that looks cheaper may not actually represent a lower final cost if important work has been excluded.

It is also useful to ask contractors to identify assumptions and exclusions clearly before agreeing to the work.

Frequently asked questions

What is the average home renovation costs in 2026?

For a full renovation of a typical three-bedroom UK house, current estimates can range from approximately £43,530 to £110,350, with an average around £76,690. A smaller refurbishment can cost much less, while extensive structural work can push the total considerably higher.

How much does it cost to renovate a house per square metre?

A full house refurbishment can fall broadly around £500 to £1,200 per square metre, depending on the scope and quality of the work. Major structural renovation can cost more. The figure should be used only as an initial budgeting guide because individual properties differ significantly.

Is renovating a house cheaper than moving?

It depends on the property, location and extent of the renovation. Renovation may be sensible when the existing home has a suitable location and layout, but major structural changes can become expensive. Moving also involves costs such as legal fees, surveys, estate agency fees and moving expenses.

How much contingency should I add to a renovation budget?

A contingency of around 10% to 15% is commonly used for unexpected costs. Older properties or projects with uncertain structural conditions may require more flexibility.

What is the most expensive part of renovating a house?

There is no single answer. Extensions, structural alterations, roofing, complete electrical or heating upgrades, and high-specification kitchens and bathrooms can all represent major expenses. The largest cost depends on the property's condition and the renovation plan.

Can I renovate a house in stages?

Yes. Staging the work can make a renovation more manageable financially. Safety, structural repairs and essential services are generally worth addressing before cosmetic improvements, but the appropriate order depends on the property and project.

Final thoughts

The average home renovation costs in 2026 cover a very broad range because no two properties require exactly the same work. A light refurbishment involving decoration and flooring may cost only a few thousand pounds, while a complete three-bedroom house renovation can run into tens of thousands or exceed £100,000.

The most reliable way to plan is to inspect the property carefully, identify essential repairs, decide which improvements are priorities and obtain detailed quotations before committing to the project.

Most importantly, leave room in the budget for unexpected work. Location, property condition, labour, materials, size and project complexity can all change the final price.

A realistic renovation budget is therefore not simply an average figure. It is a detailed estimate based on the actual house, the work required and the standard of finish you want.