buildwiz.uk

Second Fix

Plastering, fitting, finishing, and making it a room

1
Plastering Your Extension: What to Expect and What It Costs
Plastering costs £3,500–£5,500 for a typical extension. How boarding, skimming, and drying work, what fireboard is, and why your plasterer won't do it all in one visit.
2
Second Fix Electrics: Sockets, Lights, and Final Wiring
What second fix electrics costs for a UK extension (£1,500–5,000), why the bill doubles, and how to get your electrical certificate without delays.
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3
Second Fix Plumbing: Boiler, Heating, and Final Connections
What second fix plumbing costs for a UK extension (£8,000–18,000), why bills grow, and how to get your Gas Safe certificate without a year-long fight.
4
Screeding: The Floor You Never Knew You Needed
Liquid screed costs £18–34/m²/m² and takes 8-12 weeks to dry. Your builder will underestimate both. Here's what to expect and how to manage it.
5
Kitchen Installation: What to Prepare, What to Expect, What to Snag
What to have ready before your kitchen fitter arrives, how the installation process works day by day, and how to snag the finished kitchen. Labour costs £1,500–£3,500 for a standard extension.
6
Flooring for Your Extension: Options, Costs, and Timing
LVT, porcelain tiles, or engineered wood for your extension? Costs from £50-75/m2 to £50-120/m2/m2, plus the moisture test that controls everything.
7
Tiling Your Extension: Costs, Trade Accounts, and Getting It Right First Time
Large-format porcelain floor tiling costs [Unknown price: tiling-all-in-per-m2]/m² all-in. But buying tiles via your tiler's trade account can save nearly £1,000 on a typical extension floor. Here's how.
8
Decorating Your Extension: Painting, Finishing, and the Final Stretch
Decoration for a typical extension costs £1,500–£2,500. How the mist coat works, why your decorator visits 4 times instead of once, and what to snag before you sign off.