Bathroom remodelling guide to costs, planning and execution in the UK

Published by: Kevin Sears

7th March 25

Bathroom Ideas

Reading Time 8 mins 21 secs

A bathroom remodel transforms one of the most frequently used spaces in your home. Whether modernising an outdated bathroom, increasing home value, or creating a more functional space, understanding the scope is crucial before starting your project. Planning a bathroom remodel involves setting a clear vision and budget, which are essential first steps in the process.

In the UK, bathroom refurbishments are common, with homeowners seeking to maximise space in smaller bathrooms while incorporating modern amenities. Current trends include:

A well-executed bathroom remodel can add up to 5% to your home's value, according to UK property experts. Consider functionality, energy efficiency, and long-term durability when planning your remodel.

Key considerations

Establish a realistic budget and timeline for your bathroom renovation. In the UK, costs typically range from £5,000 to £8,000, depending on the work scope and material quality. Allocate 10-20% of your budget for unexpected issues.

When creating your bathroom layout, consider:

  • Plumbing locations: Moving plumbing significantly increases costs. Work with existing pipe locations where possible.

  • Electrical requirements: Ensure your electrical plan complies with UK regulations for wet areas.

  • Ventilation: Install an extractor fan to prevent mould and dampness. This should be installed as close to the shower as possible, ideally directly above it or within a few feet of the shower itself.

  • Storage: Incorporate recessed shelving, vanity units with built-in storage, tall wall cabinets and mirrored bathroom cabinets where needed.

  • Accessibility: Consider walk-in showers or grab bars for future-proofing.

Hire certified professionals for complex tasks like plumbing and electrical work to ensure compliance with UK building regulations. Consider a bathroom designer or architect for extensive renovations to optimise space and avoid costly mistakes.

When selecting materials and fixtures, balance aesthetics with practicality. Natural stone tiles require more maintenance than porcelain alternatives. Freestanding baths may not suit very small spaces typical in UK homes.

Plan your lighting scheme to enhance functionality and ambiance. Combine task lighting for grooming, ambient lighting for general illumination, and accent lighting to highlight design features. Don’t forget that you can also go for an LED backlit mirror cabinet - the ultimate in modern luxury.

Breaking down the expenses

not_suited_for_ai_image_generationBath remodel cost in the UK varies based on:

  • Bathroom size

  • Material and fixture quality

  • Extent of structural changes

  • Labour costs in your area

Typical costs for bathroom elements in the UK:

1. Sanitaryware

  • Toilet: £50 - £500+

  • Basin Vanity Unit: £50 - £500+

  • Bath: £100 - £1,000+

  • Shower enclosure: £200 - £2,000+

2. Fixtures and Fittings

  • Taps: £20 - £400+ per set

  • Shower system: £50 - £1,000+

  • Towel radiator: £50 - £500+

3. Flooring

  • Tiles: £20 - £100+ per square metre

  • Vinyl: £10 - £50 per square metre

  • Underfloor heating: £50 - £75 per square metre

4. Wall Coverings

  • Tiles: £20 - £100+ per square metre

  • Paint: £15 - £50 per litre

  • Wallpaper: £10 - £100+ per roll

5. Labour Costs

Labour typically accounts for 40-60% of the total project cost. Average daily rates for tradespeople in the UK:

  • Plumber: £150 - £300

  • Electrician: £150 - £250

  • Tiler: £150 - £200

  • Painter and Decorator: £100 - £200

Additional expenses to consider:

  • Waste removal: £100 - £250

  • Building permits if you are altering the structure of your house (if required): £200 - £1,000

  • Contingency for unexpected issues: 10-20% of total budget

To control costs:

  1. Retain the existing layout to minimise plumbing changes

  2. Choose quality fixtures to ensure longevity

  3. Consider refinishing existing elements instead of replacing

  4. Obtain quotes from at least three reputable contractors

Invest in quality for waterproofing and plumbing to prevent costly future repairs.

Small bathroom remodels: Maximising space and budget

A photorealistic shot capturing a compact yet stylish bathroom featuring a wall-mounted toilet, floating vanity, and glass walk-in shower, demonstrating efficient use of spaceSpace-Saving Design Strategies

For small bathrooms common in UK homes, consider:

  • Wall-hung toilets and vanity units to free up floor space

  • Corner sinks to utilise corner space

  • Sliding or pocket doors to save floor space

  • Recessed storage in wall cavities for toiletries and towels

  • Large mirrors to create the illusion of more space and enhance natural light

Cost-Effective Solutions for Small Bathrooms

Lighting Considerations

  • Combine ambient, task, and accent lighting for a well-lit space

  • Install LED strip lights under floating vanities or along ceiling edges

  • Use backlit mirrors for even, shadow-free lighting

Colour and Material Choices

  • Use light colours on walls and floors to reflect light and create an airy feel

  • Extend the same flooring into the shower area for visual continuity

  • Install clear glass shower enclosures to maintain visual flow

Storage Solutions

  • Utilise wall height with tall, narrow cabinets or open shelving

  • Install over-toilet storage for often-wasted space

  • Create recessed shelves in shower walls for a sleek storage solution

Choosing materials and fixtures for your bathroom remodel

A photorealistic shot capturing an elegant display of high-end bathroom fixtures, including a sleek faucet, showerhead, and tile samples arranged on a marble countertopFlooring Options

Consider these durable and water-resistant options:

  • Porcelain tiles: Available in various styles, including wood-effect finishes

  • Luxury Vinyl Tiles (LVT): Cost-effective, warm underfoot, and easy to maintain

  • Natural stone: Adds luxury but requires regular sealing

Factor in slip resistance for UK bathrooms prone to dampness.

Wall Coverings

  • Ceramic tiles: Offer design versatility and easy maintenance

  • Waterproof paint: Budget-friendly with good moisture resistance

  • Shower panels: Create a seamless look, suitable for walk-in showers

Sanitaryware Selection

  • Toilets: Choose water-efficient models with dual flush systems

  • Basins: Wall-hung or pedestal sinks maximise space in smaller bathrooms

  • Baths: Consider shower-bath combinations for smaller spaces

Shower Enclosures

  • Frameless glass enclosures: Create openness and are easier to clean

  • Wetroom-style showers: Suitable for small or accessible bathrooms

  • Wet room in a box: seamless look where shower floor integrates with bathroom floor

Fixtures and Fittings

  • Taps: Select water-saving models with aerators

  • Showerheads: Look for multiple spray patterns and water-saving features

  • Heated towel rails: Provide warmth and towel storage

Storage Solutions

  • Vanity units: Choose models with drawers for easier access

  • Mirrored cabinets: Combine storage with a necessary bathroom feature

  • Ladder shelving: Provides open storage without overwhelming small spaces

Lighting Fixtures

  • Install IP-rated fixtures suitable for bathroom use

  • Choose energy-efficient LED lighting for long-term cost savings

  • Consider dimmable lights for adjustable ambiance

The bathroom remodel process: Step-by-step guide

A photorealistic shot capturing a bathroom mid-renovation, showing exposed plumbing and electrical work, with new tiles partially installed on one wall1. Preparation and Demolition

  • Clear out the bathroom, removing all personal items and furniture

  • Protect elements you're keeping with plastic sheeting

  • Turn off water supply and drain pipes

  • Remove old fixtures, tiles, and other elements

  • Inspect exposed areas for hidden issues like water damage or mould

2. Structural Changes and Rough-In Work

  • Make necessary wall changes, including removing or building partitions

  • Relocate plumbing pipes and electrical wiring as needed

  • Install additional supports for new fixtures

3. Plumbing and Electrical Work

  • Install new plumbing lines for relocated fixtures

  • Update electrical wiring, ensuring compliance with UK regulations

  • Install extractor fans for proper ventilation

  • Install underfloor heating elements if applicable

4. Waterproofing

  • Apply waterproof membranes to walls and floors, especially in shower areas

  • Ensure proper drainage slopes in wetroom-style showers

5. Wall and Floor Finishing

  • Install wall coverings (tiles, paint, or shower panels)

  • Lay new flooring, ensuring proper sealing around edges and fixtures

6. Fixture Installation

  • Mount toilet, sink, and bathtub or shower enclosure

  • Install cabinets and storage solutions

  • Fit shower screens or curtain rails

7. Finishing Touches

  • Install taps, showerheads, and other plumbing fixtures

  • Fit lighting fixtures, ensuring they meet IP ratings for bathroom use

  • Mount mirrors and additional accessories

  • Apply silicone sealant around fixtures and edges for water-tightness

8. Final Checks and Clean-Up

  • Test all plumbing fixtures for leaks and proper function

  • Check electrical installations, including lighting and extractor fans

  • Ensure proper operation of any smart features or underfloor heating

  • Thoroughly clean the space, removing all construction debris

Work with qualified professionals to ensure compliance with UK building regulations. The duration of a bathroom remodel varies based on the work scope. A simple refresh might take 1-2 weeks, while a complete overhaul could take 4-6 weeks or more.

DIY vs professional bathroom remodel: Making the right choice

A photorealistic shot capturing a split-screen image: on one side, a professional plumber installing a high-end shower system, and on the other, a DIY enthusiast painting bathroom wallsTasks Suitable for Professional Installation

  • Structural changes to walls or floors

  • Plumbing alterations or installations

  • Electrical work (must be certified by a qualified electrician)

  • Wetroom waterproofing

  • Complex tiling patterns or natural stone installation

Finding and Working with Reliable Contractors in the UK

  1. Seek recommendations from trusted sources or reputable online platforms like Checkatrade or MyBuilder

  2. Obtain at least three detailed quotes

  3. Check credentials: Ensure plumbers are registered with WaterSafe and electricians with NICEIC or similar approved schemes

  4. Ask for references and examples of previous work

  5. Agree on a detailed contract, including timeline, payment schedule, and material specifics

Ensuring Compliance and Quality

Key areas of UK building regulations for bathrooms include:

  • Electrical safety in wet areas

  • Adequate ventilation

  • Water efficiency of new fixtures

  • Structural integrity for layout changes

Navigating building regulations and permits for bathroom remodels

UK Building Regulationsnot_suited_for_ai_image_generationfor Bathrooms

  • Electrical safety: Comply with Part P, including specific requirements for different bathroom zones

  • Ventilation: Meet Part F requirements to prevent dampness and mould growth

  • Structural changes: Adhere to Part A for any alterations to the building's structure

  • Water efficiency: New fittings must meet Part G standards

  • Drainage: Install proper systems according to Part H

More details on UK Building Regulations here.

When Building Permits Are Required

Obtain building control approval for:

  • Installing a new bathroom where one didn't exist before

  • Making significant structural changes, such as removing load-bearing walls

  • Altering the building's exterior (e.g., adding a window or skylight)

  • Major plumbing or electrical work beyond simple repairs or replacements

Common Compliance Issues in Bathroom Renovations

  • Electrical safety zones: Ensure correct placement of light fittings, shaver sockets, and other electrical installations

  • Waterproofing: Properly tank wet areas, especially shower enclosures and around baths

  • Slip resistance: Use floor materials meeting slip resistance standards

  • Accessibility: Consider incorporating accessible design features

Documentation and Certification

Maintain records of:

  • Building control approval documents (if required)

  • Certificates for electrical and plumbing work

  • Product warranties and installation guides

  • Before and after photographs

Sustainable and eco-friendly bathroom remodel options

A photorealistic shot capturing an eco-friendly bathroom featuring a low-flow showerhead, dual-flush toilet, and reclaimed wood vanity, with natural light streaming through a skylightWater Conservation

  • Install dual-flush toilets to reduce water usage

  • Choose low-flow showerheads that maintain pressure while using less water

  • Fit aerated taps to reduce water flow without compromising functionality

  • Consider greywater systems to recycle water for toilet flushing

Energy Efficiency

  • Install LED lighting systems with programmable controls

  • Use heat recovery ventilation to reduce energy waste

  • Consider solar water heating if your property is suitable

Sustainable Materials

  • Use recycled glass tiles for unique aesthetics

  • Choose bamboo for flooring, cabinets, or towels

  • Select low-VOC paints and sealants to improve indoor air quality

Waste Reduction

  • Donate or recycle old fixtures through charitable organisations

  • Choose durable, timeless designs to reduce future renovation needs

  • Opt for repairable fixtures to minimise replacements

Natural Light and Ventilation

  • Install skylights or solar tubes to bring natural light into windowless bathrooms

  • Include operable windows for natural ventilation when possible

Smart Technology

  • Use occupancy sensors to control lighting and ventilation automatically

  • Install smart thermostats for bathrooms with separate heating

  • Implement water usage monitors to track and reduce consumption

Eco-Friendly Certifications

Look for these certifications when selecting products:

  • FSC (Forest Stewardship Council) for wood products

  • WRAS (Water Regulations Advisory Scheme) approval for water-efficient fixtures

  • Energy Star ratings for appliances and fixtures

Final Checklist

  1. Conduct a final walk-through to ensure work meets specifications

  2. Test all plumbing fixtures, electrical installations, and smart features

  3. Verify completion of necessary inspections and obtain all relevant certificates

  4. Check sealing around fixtures, especially in wet areas

  5. Confirm ventilation systems are working effectively

  6. Review final costs against budget, accounting for any changes

A successful remodel of a bathroom balances aesthetics, functionality, and durability while meeting your household's needs. With proper care, your new bathroom will provide comfort and value for years to come.

Additional Resources

For more information on specific aspects of bathroom remodelling, consider these resources:

 

Kevin Sears

About Kevin Sears

Kevin Sears is a bathroom and interior design blogger here at 34 St John. He creates original content utilising his extensive knowledge of the bathroom industry and latest trends.

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