How Much Does a Bathroom Renovation Cost in Medway?

A bathroom renovation is one of the most impactful home improvements available — and one where the cost question is harder to answer with a single figure than almost any other domestic project. The range from a straightforward like-for-like suite replacement through to a full wet room installation or a new en-suite in a previously unplumbed bedroom covers an enormous span in both scope and price. Understanding which type of project you are planning — and what determines the cost within that type — is the starting point for budgeting accurately.

Medway’s residential market generates a consistent flow of bathroom renovation work across all price points. The post-war semis of Twydall, Hempstead, Wigmore and Rainham are at an age where original or early-replacement bathrooms are due for comprehensive updating. The larger detached properties of Rainham and the surrounding villages have different expectations and budgets. The Victorian and Edwardian terraces of central Gillingham, Chatham and Rochester carry properties where bathroom additions were often retrofitted into spaces not originally designed for them — creating specific challenges that affect the scope and cost of renovation work.

This post breaks down realistic current prices across the main bathroom renovation types in the Medway market.

Bathroom Renovation Costs by Project Type

Like-for-Like Suite Replacement with Retile

The most contained bathroom renovation scope — removing the existing sanitaryware, replacing in the same positions, and retiling. No significant plumbing repositioning, no structural work.

Realistic current prices in Medway:

• Small bathroom, standard specification: £4,200–£7,500
• Standard bathroom, standard specification: £5,500–£9,500
• Standard bathroom, mid-range specification: £7,000–£12,500

Full Strip-Out and Refit

A complete strip-out — removing everything back to the structural walls and floor — is more expensive but gives the opportunity to address the substrate, reposition waste and supply connections if needed, and ensure waterproofing is applied correctly. For Medway’s post-war housing where bathrooms have been modified multiple times, a full strip-out frequently reveals conditions that make it the more reliable approach.

Realistic current prices in Medway:

• Small bathroom, standard specification: £5,500–£9,500
• Standard bathroom, standard specification: £7,000–£13,000
• Standard bathroom, mid-range specification: £9,000–£16,000
• Standard bathroom, higher specification: £13,000–£22,000+

Wet Room Installation

A properly specified wet room — with correct floor grading, professionally applied tanking membrane and coordinated tiling — is a more technically demanding project than a standard bathroom renovation.

Realistic current prices in Medway:

• Small wet room, standard specification: £7,500–£12,500
• Standard wet room, mid-range specification: £10,000–£17,000
• Larger wet room, higher specification: £14,000–£24,000+

New En-Suite Addition

Adding an en-suite to a bedroom that currently has no plumbing — the most consistently requested bathroom project across the larger properties of Rainham and the surrounding villages.

Realistic current prices in Medway:

• Compact en-suite, standard specification: £7,000–£12,000
• Standard en-suite, mid-range specification: £9,500–£16,000
• Larger en-suite, higher specification: £13,000–£22,000+

What Affects the Final Cost?

Specification of Sanitaryware and Tiles

Specification is the most significant cost variable within any given renovation type — and entirely within the homeowner’s control. A standard white suite with ceramic wall and floor tiles costs considerably less than the same bathroom scope with a freestanding bath, a frameless walk-in shower, large-format porcelain tiles and premium basin and tap fittings. The plumbing and tiling labour costs are broadly fixed once the scope is agreed — the materials within that scope can vary the total project cost by 30 to 60 percent. Being clear about specification before obtaining quotes, and ensuring all plumbers are pricing the same specification, is the most reliable way to make quotes genuinely comparable.

Waste Routing for New Spaces

For en-suite additions and strip-outs where waste positions are being changed, the waste routing from the new bathroom to the existing soil stack is the element that most commonly affects cost in unexpected ways. The waste pipe from the toilet needs to maintain a continuous fall of at least 1:80. In Medway’s two-storey post-war semis, routing the en-suite waste from a rear bedroom to the existing stack often requires the pipe to run through the floor void and box across a ceiling in the room below. The longer and more complex this routing, the higher the cost. We confirm the waste routing before agreeing a price for any en-suite or repositioned bathroom.

Substrate Condition

The condition of the walls and floor revealed at strip-out directly affects the renovation cost. Plasterboard affected by historical moisture that needs replacing. Floor joists weakened by a slow leak that need reinforcing. Non-standard construction in a previous bathroom addition that needs remedial work. On Medway’s older housing stock these conditions are encountered more frequently than on newer construction. A good plumber builds a realistic allowance for substrate remediation into the quote on older properties.

Floor Construction

Tiling directly onto a suspended timber floor — the construction type found throughout most of Medway’s Victorian, Edwardian and inter-war housing stock — requires a correctly specified decoupling membrane or rigid board overlay to prevent floor movement causing grout cracking and tile failure. This is a necessary addition to the standard tile installation cost on properties with suspended timber floors and should be included in any properly specified renovation quote. A quote that omits it is not pricing the job correctly.

How Long Does a Bathroom Renovation Take in Medway?

As a guide for the main project types:

• Like-for-like suite replacement with retile: five to ten working days
• Full strip-out and refit: eight to fourteen working days
• Wet room installation: ten to sixteen working days
• New en-suite addition: ten to eighteen working days depending on waste routing complexity

These timelines assume a plumber working alongside a specialist tiler and do not include drying time for tanking membranes and adhesives — a wet room in particular requires adequate curing time at each stage before the next phase can proceed.

If you are planning a bathroom renovation in Gillingham, Chatham, Rochester, Rainham, Strood or anywhere across the Medway district, get in touch and we will come out to assess your bathroom and give you a clear, itemised quote. Get in touch to arrange a visit.