Bathroom Renovation Guide: From Planning to Completion

A bathroom renovation is one of the most rewarding home improvements you can undertake. In the Devon property market, a modern, well-executed bathroom not only improves your daily quality of life but also significantly increases the resale value of your home.

At V3 Build, we have spent 25 years perfecting the process of bathroom installation. Whether you are updating a family bathroom in Newton Abbot or installing a compact ensuite in an Exeter terrace, following a structured path is the key to a professional finish.

Phase 1: Planning and Layout

The layout of your bathroom is often dictated by the existing plumbing. While it is possible to move toilets and showers, doing so adds complexity and cost to the project.

Start by considering the “wet zones.” In smaller Devon homes, maximizing floor space is a priority. Wall-hung vanities and toilets create an illusion of space by keeping the floor visible. This is also the time to decide between a traditional bath, a walk-in shower, or a “wet room” configuration. Ensure you leave adequate clearance for doors to open and for comfortable movement around the fixtures.

Phase 2: Budgeting and Material Selection

Once the layout is fixed, you must select your materials. In a bathroom, quality is non-negotiable due to the constant presence of moisture.

Choose non-porous tiles such as porcelain or natural stone that has been correctly sealed. When selecting brassware—taps and shower heads—look for products with high-quality ceramic discs to prevent leaks. For homes in Torbay or Plymouth with high salt air, marine-grade finishes can help prevent corrosion on metal fixtures. Don’t forget to budget for the “hidden” essentials, such as high-performance waterproof backing boards (like Wedi or Marmox) rather than standard plasterboard.

Phase 3: The Strip-Out and First Fix

A professional renovation begins with a clean slate. This stage involves removing the old suite, tiles, and flooring to expose the sub-floor and wall studs.

During the “first fix,” our plumbers and electricians install the new pipework and wiring. This is the most critical technical phase. We ensure that waste pipes have the correct fall and that electrical zones comply with strict bathroom safety regulations. If you are opting for underfloor heating, it is installed at this stage before the floor is leveled and waterproofed.

Phase 4: Waterproofing and Tiling

Waterproofing, or “tanking,” is the most important step for the longevity of your bathroom. We apply waterproof membranes to the shower area and floor to ensure that even if a tile grout line fails, water cannot penetrate the structure of your home.

Tiling is where the visual transformation happens. Starting from a centered point ensures symmetrical cuts and a balanced look. Once the tiles are set, we apply anti-fungal grout and high-grade silicone sealants to all internal corners and joins.

Phase 5: Second Fix and Completion

The final phase involves the installation of the “sanitaryware”—the bath, toilet, sink, and shower screen.

We connect the taps, test the water pressure, and ensure all drainage is functioning perfectly. The final task is the installation of lighting, mirrors, and accessories such as towel rails. A thorough final cleaning and a walkthrough with the client ensure that every detail meets the high standards expected from a V3 Build project.

Estimated Timelines and Costs

A standard bathroom renovation typically takes between two to three weeks to complete. In 2026, a high-quality professional renovation in the South West generally starts from £6,000 for a small ensuite, while a large family bathroom featuring premium materials can range from £10,000 to £15,000.