Kitchen Renovations

Open Plan Kitchen Living Room: Converting and Plastering

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Quick Answer: Converting to an open plan kitchen living room involves removing non-load bearing walls or installing supporting beams for structural walls, followed by making good the floor, ceiling and walls with plaster. Budget £1,200–£3,500 for structural work, £800–£2,000 for plastering, and always obtain Building Regulations approval before starting. Most projects take 5-10 days including drying time. Understanding Open Plan Kitchen Living Spaces Open plan kitchen living rooms have become the gold standard for modern UK homes. By removing the wall between your kitchen and living room, you create a bright, sociable space that’s perfect for family life and entertaining. The conversion isn’t just about knocking through a wall, though. You’ll need to consider structural implications, Building Regulations compliance, and—crucially for a perfect finish—extensive plastering work to make the newly opened space look like it was always meant to be one room. We’ve completed dozens of these conversions across Kent, and the plastering stage is where many DIY projects fall short. Let’s walk through exactly what’s involved, from the initial structural assessment right through to that final skim coat. Planning Your Open Plan Conversion: What You Need to Know Structural Considerations The first and most critical question: is the wall you want to remove load-bearing? This determines everything else about your project. Load-bearing walls support the structure above—floor joists, upper floors, or roof weight. Removing one requires installing a steel beam (RSJ) or engineered timber beam to transfer the load. Non-load bearing (partition) walls simply divide space and can be removed more easily. External walls: Almost always load-bearing Walls running perpendicular to floor joists: Usually load-bearing Walls at the centre of the house: Often load-bearing Stud partition walls: Rarely load-bearing (but check anyway) ⚠️ Warning: Never assume a wall isn’t load-bearing. Always consult a structural engineer before removing any wall. Removing a load-bearing wall without proper support can cause catastrophic structural failure. Building Regulations Approval You’ll need Building Regulations approval for knocking through walls, even if planning permission isn’t required. This applies to both load-bearing and non-load bearing walls according to UK Building Regulations. Your local authority building control will inspect at key stages: before you start, when the beam is installed, and when the work is complete. Factor in £300–£500 for building control fees and 2-4 weeks for approval. The Knock Through Process: Step-by-Step Stage 1: Preparation and Temporary Support Before any wall comes down, you need temporary supports (Acrow props) to hold up the structure above. These adjustable steel columns are positioned either side of where the beam will go. For a typical 4-metre opening, you’ll need 4-6 Acrow props with scaffold boards (strongboys) to distribute the load. This isn’t optional—the ceiling will crack or collapse without proper support. Stage 2: Installing the Beam If you’re dealing with a load-bearing wall, a structural engineer will specify the beam size based on the span and load. Common options for domestic projects: Beam Type Typical Size Maximum Span Cost Range Steel RSJ 152×89mm 3.5 metres £350–£600 Steel RSJ 203×102mm 4.5 metres £500–£900 Engineered Timber (LVL) 90×400mm 4 metres £400–£700 Flitch Beam Custom 3.5 metres £600–£1,000 Steel beams (RSJs) are most common because they’re strong, reliable, and building inspectors understand them well. The beam sits on padstones—concrete or steel plates that spread the load onto the masonry either side. Stage 3: Removing the Wall With the beam in place and approved by building control, the old wall can be carefully removed. This creates enormous amounts of dust and debris—expect at least 10-15 heavy-duty rubble bags from a single wall. Professional builders use cutting equipment to minimise vibration damage to surrounding plaster. Sledgehammers work but often crack plaster in adjoining rooms, creating more remedial work. The Plastering Challenge: Making It Look Seamless Here’s where most DIY conversions fall apart. The structural work might be sound, but poor plastering screams “renovation” rather than achieving that seamless open plan look. What Needs Plastering After a Knock-Through? Removing a wall affects five surfaces that need attention: The beam soffit: Underneath the new RSJ or timber beam Both reveals: The sides where the old wall met the remaining walls Ceiling patches: Where the wall intersected the ceiling Floor level: The gap left by removing the wall base Any damaged areas: Cracks or loose plaster caused by vibration Boarding Out the Beam Steel beams must be boxed in with plasterboard before plastering—both for aesthetics and fire protection under Part B of the Building Regulations. We typically use 12.5mm standard plasterboard or 15mm fire-resistant board depending on the structural engineer’s specification. The framework is built from 50×25mm timber battens screwed to the beam and walls. Pro Tip: Add extra noggins (horizontal supports) within the box framework at 400mm centres. This prevents the plasterboard from flexing and cracking when you’re applying the skim coat. Many plasterers skip this step, then wonder why cracks appear after six months. The plasterboard joints are then taped with scrim or paper joint tape and filled with Gyproc EasiFill or similar joint compound. This creates a level base for the skim coat. For more detailed information on boarding techniques, see our guide on how to plasterboard a room. Making Good the Reveals Where the old wall met the existing walls, you’ll have an exposed edge—sometimes just plasterboard, sometimes a mix of brick, block, and old plaster. These reveals need careful preparation: Remove any loose plaster back to sound material (tap the wall—loose areas sound hollow) Cut back to create a clean edge using a bolster chisel and hammer Apply PVA bonding agent diluted 1:3 with water (two coats, letting first coat go tacky) Build up level with the existing wall using bonding plaster or Hardwall Once set (2-3 hours), apply final skim coat using British Gypsum Multi-Finish The key is feathering out the new plaster so it blends seamlessly with the old. This takes experience—you’re typically working across a 300-500mm width, gradually thinning the new plaster from 15mm thick right down to paper-thin at the edge. Ceiling Repairs The ceiling is often the

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Kitchen Extension Ideas: Design, Planning and Costs 2026

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Quick Answer: A kitchen extension in 2026 typically costs between £25,000-£60,000+ depending on size and specifications. Single-storey rear extensions (3m x 4m) average £35,000-£45,000, while side-return extensions run £40,000-£55,000. Popular designs include open-plan kitchen diners, wraparound extensions, and side-returns. You’ll need planning permission for extensions exceeding permitted development limits (typically 3-4m from the rear), and all work must comply with Building Regulations Part L (energy efficiency) and Part M (accessibility). Factor in 8-12 weeks for construction plus 4-6 weeks for plastering and finishing trades. Why Kitchen Extensions Remain the UK’s Most Popular Home Improvement Kitchen extensions continue to dominate the UK home improvement market in 2026, with over 68% of homeowners who undertake major renovations choosing to extend their kitchen space rather than move house. The combination of rising property prices, stamp duty costs averaging £12,500 on a typical family home, and the flexibility to design exactly what you want makes extending increasingly attractive. From our experience working on hundreds of extension projects across Kent, we’ve seen how a well-planned kitchen extension can add 15-20% to your property value whilst transforming how your family uses the space. The key is understanding what’s involved before you start — from planning regulations to plastering specifications and realistic budgets. According to government guidance on permitted development rights, many single-storey rear extensions can be built without full planning permission, but the rules have specific limits you need to understand. Most Popular Kitchen Extension Ideas for 2026 1. Single-Storey Rear Extension (Kitchen Diner) The classic choice for terraced and semi-detached homes. A single-storey rear extension typically projects 3-6 metres from the back of your property, creating an open-plan kitchen-dining area that connects seamlessly with your garden. Typical dimensions: 3m deep x 4m-8m wide (matching house width) Ceiling height: 2.7m-3m internally (higher ceilings create better proportions in larger spaces) Popular features: Bifold or sliding doors spanning 3-6m, roof lanterns or skylights, underfloor heating Construction time: 8-12 weeks from groundwork to final finishes These extensions work particularly well with flat roofs using warm deck construction (insulation above the structural deck) to meet Part L thermal requirements. The ceiling requires plasterboard on battens with at least 12.5mm tapered-edge boards for a smooth skim coat finish. We cover the specifics of ceiling plastering in our guide to professional ceiling plastering techniques. 2. Side-Return Extension Perfect for Victorian and Edwardian terraces, a side-return extension infills the narrow alley running along the side of the property. This typically adds 1.5-2m in width, transforming a galley kitchen into a proper family space. Typical addition: 8-15 square metres Common configuration: Combines with rear extension for L-shaped layout Roof options: Pitched roof matching existing, or flat roof with concealed box gutter Planning note: Usually falls under permitted development if under 50% of original garden area Side-returns require careful damp-proofing detail where new walls meet existing structures. The corner junction between old and new walls needs proper bonding and often benefits from stainless steel mesh embedded in the base coat before skimming to prevent cracking. 3. Wraparound Extension (L-Shaped) Combining rear and side-return extensions creates a wraparound or L-shaped extension that maximises ground floor space. This is the premium option, often adding 25-40 square metres of floor area. Space gain: Typical addition of 30-35m² for a standard terrace Layout potential: Full open-plan kitchen-diner with separate utility/boot room possible Cost premium: 15-25% more expensive per m² due to complex roofline and multiple corners Structural considerations: May require steel beams spanning 5-7m to create open-plan space Pro Tip: Wraparound extensions create multiple internal corners where new plasterwork meets existing walls. Always specify galvanised angle beads (not plastic) at these junctions and allow extra time for proper corner finishing. These junctions move slightly during the first heating season, so we recommend delaying final decoration for 8-10 weeks after plastering completion. 4. Orangery-Style Extension A step up from conservatories, orangery extensions feature brick or render piers with glazing between, topped with a flat roof section and a glazed lantern. They offer better thermal performance than traditional conservatories whilst maintaining the light, airy feel. Construction: Solid perimeter walls (usually 600mm+ sections) with large glazed panels between Roof composition: Typically 60-70% solid flat roof with 30-40% glazed lantern/rooflight Internal finish: Full plastered walls and ceiling for a proper room feel Thermal requirements: Must meet full Building Regs (U-values under 0.18 W/m²K for walls) 5. Double-Storey Extension When you need space above as well as below, a two-storey extension adds a bedroom or bathroom upstairs whilst extending the kitchen. This typically costs only 40-50% more than single-storey whilst doubling the space gained. Planning challenge: Requires full planning permission in most cases (exceeds permitted development) Structural requirements: Deeper foundations (minimum 1m, often 1.2-1.5m depending on soil) Lead time: 12-16 weeks typical construction period Cost efficiency: Approximately £1,800-£2,400 per m² vs £2,200-£2,800 per m² for single-storey Planning Permission and Building Regulations for Kitchen Extensions Understanding Permitted Development Rights Many kitchen extensions can be built under permitted development rights without requiring full planning permission. However, the rules are specific and have changed several times in recent years. Property Type Maximum Rear Extension (Single-Storey) Conditions Detached house 4 metres from original rear wall Within 50% of original garden area Semi-detached or terraced 3 metres from original rear wall Maximum height 4m for flat roof, 4m to eaves for pitched Side extension Must be single-storey and no more than 4m high Cannot extend beyond principal elevation facing road Two-storey extension 3 metres maximum projection for all property types Cannot extend beyond original house width within 7m of boundary The Planning Portal provides detailed guidance on permitted development limits, including interactive tools to check if your proposed extension qualifies. ⚠️ Warning: Conservation areas, listed buildings, and Article 4 directions remove or restrict permitted development rights. Always check with your local planning authority before assuming you don’t need permission. In Kent, many historic town centres including Canterbury, Rochester, and Tunbridge Wells have Article 4 restrictions covering thousands of properties. Building Regulations Compliance Regardless of whether you need planning

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Kitchen Plastering and Tiling: Preparation for Wall Tiles

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Quick Answer: Yes, you should always plaster or prepare kitchen walls properly before tiling. The substrate needs to be flat, solid, and moisture-resistant. For most kitchen tiling, a proper sand and cement render or bonding plaster base provides the best adhesion. A skim coat isn’t typically necessary before tiling—in fact, it can reduce tile adhesion. The wall should be primed with diluted PVA or a dedicated tile primer before adhesive application. Why Proper Plastering Matters Before Kitchen Tiling Kitchen wall tiling isn’t simply a case of slapping adhesive onto whatever surface happens to be there. The preparation work—particularly the plastering—determines whether your tiles stay put for decades or start falling off within months. We see countless kitchen renovation disasters where tiles have been applied directly to painted plasterboard, crumbling render, or poorly prepared surfaces. The result? Expensive remedial work that often means stripping everything back to the blockwork and starting again. The reality is that kitchen environments present unique challenges. You’re dealing with: High humidity from cooking and steam Direct water splashes behind sinks and cookers Temperature fluctuations that cause expansion and contraction Heavy ceramic or porcelain tiles that require excellent adhesion Potential movement from wall-mounted cabinets and appliances Each of these factors puts stress on the tile-to-wall bond. That’s why the substrate preparation is absolutely critical, and why we devote significant attention to this phase during any kitchen renovation project. Understanding Substrate Requirements for Kitchen Tiles Before we discuss specific plastering techniques, it’s important to understand what makes a suitable substrate for tiling. The British Gypsum technical guidance and BS 5385 (the British Standard for wall tiling) are clear on the requirements. Essential Substrate Characteristics Requirement Why It Matters Testing Method Flatness Deviations over 3mm per metre cause lippage and uneven grout lines Use a 1.8m straightedge to check surface Strength Must support tile weight (ceramic: 20kg/m², porcelain: 25kg/m²) Scratch test and visual inspection for friability Stability Movement causes tile debonding and grout cracking Check for hollow spots by tapping with knuckles Moisture Resistance Water penetration behind tiles leads to adhesive failure Use moisture-resistant materials in wet zones Cleanliness Dust, grease, and paint contamination prevent adhesion Wipe with damp cloth—should show no residue Standard gypsum finishing plaster (pink or multi-finish) is not suitable as a final surface for direct tiling in wet areas. It’s too soft, absorbs moisture, and lacks the mechanical key that tile adhesives need. The Right Plastering Approach for Kitchen Tiling The plastering specification depends entirely on what you’re starting with. Let’s break this down by substrate type, because the approach differs significantly. Plastering Over Blockwork or Brickwork If you’re working with bare masonry—common in new builds or major renovations—the traditional approach remains the gold standard. Sand and cement render provides the most robust base for tiling. We typically use a 4:1 or 5:1 sharp sand to cement ratio, applied in two coats: Scratch coat: 10-12mm thick, scratched horizontally when thumbprint-firm to provide mechanical key Top coat: 8-10mm thick, applied 24 hours later, ruled flat and finished with a wooden float Total thickness: 18-22mm, which compensates for minor irregularities in the blockwork Allow 7-14 days for full curing before tiling, depending on temperature and ventilation. You can check dryness by taping polythene to the wall overnight—condensation indicates it’s not ready yet. Pro Tip: Add a plasticiser (not washing-up liquid!) to your render mix. Products like Everbuild 202 improve workability and frost resistance during curing. Use 250ml per 50kg bag of cement. Preparing Existing Plaster for Tiling Many kitchen renovations involve tiling over walls that have been previously plastered and painted. This scenario requires careful assessment. First, test the existing plaster strength. Press your thumbnail firmly into the surface. If it leaves a significant indentation, the plaster is too soft for tiling. You’ll need to hack it off and start fresh. For sound plaster that’s been painted: Remove any loose or flaking paint with a scraper Abrade glossy surfaces with 40-grit sandpaper or a Screwfix mechanical sander Fill any cracks or holes with proper filler techniques Prime the surface with diluted PVA (3:1 water to PVA) or a dedicated tile primer Allow to dry fully (2-4 hours) before tiling Never tile over wallpaper, vinyl, or textured finishes. These must be completely removed down to the plaster surface. Working with Plasterboard in Kitchens Standard plasterboard is increasingly common in modern kitchen construction, particularly in stud walls. However, moisture-resistant plasterboard (the green-coloured boards) should always be specified in kitchen environments. The good news? You don’t need to skim coat plasterboard before tiling. In fact, applying a finishing plaster creates a weaker substrate. Here’s the correct approach: Use 12.5mm moisture-resistant board as minimum (15mm for heavy tiles) Ensure studs are at 400mm centres maximum for tiling Fix boards with plasterboard screws at 150mm centres on edges, 200mm in field Fill and tape all joints with jointing compound Prime with a coat of diluted PVA (5:1 water to PVA for plasterboard) The paper face of plasterboard provides excellent mechanical key for tile adhesive—much better than a smooth skim coat. This is why professional tilers prefer to tile directly onto primed plasterboard. ⚠️ Warning: Never use standard (grey) plasterboard behind kitchen sinks, cookers, or anywhere that might get direct water contact. Even a small leak can cause catastrophic failure. Always specify moisture-resistant or tile backer board in these zones. Specialised Backing Boards for Wet Areas In areas subject to heavy water exposure—particularly behind sinks and around cooker splashbacks—many professional installers now specify tile backer boards rather than traditional plaster substrates. These cement-based boards offer several advantages: Product Type Thickness Cost (2026) Best Use Wedi Board 6-20mm £45-85/m² Wet rooms, shower areas, premium installations Marmox Board 10-30mm £35-60/m² General wet areas, good insulation properties No More Ply 6-12mm £25-40/m² Kitchen splashbacks, light-duty wet areas Hardie Backer 6-12mm £20-35/m² Budget option, requires careful sealing These boards fix directly to studs or existing masonry with specialist screws and adhesive, then tile directly on top. They’re completely waterproof, dimensionally stable, and eliminate any concerns about

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Kitchen Renovation Guide: Planning Your Dream Kitchen in 2026

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Quick Answer: A complete kitchen renovation in the UK typically costs between £8,000–£25,000+ depending on size and specification. Plan for 4–8 weeks of work including demolition, first fix (plumbing, electrics), plastering walls and ceilings, second fix (units, worktops), and finishing. The key to success is detailed planning, realistic budgeting (add 15–20% contingency), and coordinating trades in the correct sequence. Why Kitchen Renovations Require More Planning Than Other Rooms Your kitchen isn’t just another room — it’s the operational heart of your home. Unlike a bedroom or lounge where you might get away with a simple redecoration, a proper kitchen renovation involves multiple trades working in precise sequence, strict adherence to Building Regulations, and careful coordination of services. From a plasterer’s perspective, kitchens present unique challenges. You’re working around new plumbing runs, rewired electrics, extractor ductwork, and potentially structural changes where walls have been removed or openings widened. Get the plastering stage wrong, and it affects every trade that follows. Modern kitchen renovations in 2026 also need to address energy efficiency requirements under Building Regulations Part L. If you’re removing walls or adding extensions, you’ll need to demonstrate improved thermal performance — often meaning insulated plasterboard becomes part of your specification rather than an optional upgrade. The True Cost of Kitchen Renovation in 2026 Let’s break down realistic costs based on current UK pricing. These figures reflect actual contractor quotes in Kent and Southeast England as of early 2026, including materials and labour. Kitchen Type Size Typical Cost Range Duration Budget Refresh Small (8–10m²) £5,000–£8,000 2–3 weeks Standard Renovation Medium (10–15m²) £12,000–£18,000 4–6 weeks Premium Remodel Large (15–20m²) £20,000–£30,000 6–8 weeks Luxury Kitchen Large (20m²+) £30,000–£50,000+ 8–12 weeks These ranges include all trades — demolition, building work, plumbing, electrics, plastering, flooring, units, and worktops. For a detailed breakdown of just the kitchen elements, see our comprehensive guide on kitchen renovation costs. What Affects Kitchen Renovation Pricing Structural changes: Removing walls, creating openings, or adding steel beams adds £2,000–£8,000 to your budget Services relocation: Moving gas, water, or drainage runs costs £800–£2,500 per service depending on distance Kitchen unit quality: Flat-pack from Wickes (£2,000–£4,000) versus bespoke cabinetry (£8,000–£15,000+) Worktop material: Laminate (£150–£300), solid wood (£400–£800), quartz/granite (£1,200–£3,500+) Appliance specification: Budget package (£1,500–£2,500) versus premium brands (£5,000–£10,000+) Flooring choice: Vinyl (£20–£35/m²), porcelain tiles (£40–£80/m²), engineered wood (£50–£90/m²) Pro Tip: Always add a 15–20% contingency to your kitchen budget. Once walls come down, you invariably find issues — damp patches needing treatment, outdated wiring requiring full rewire, or floors that aren’t level and need screed. I’ve yet to complete a kitchen renovation that didn’t uncover at least one unexpected problem requiring additional work. The Complete Kitchen Renovation Timeline Understanding the sequence of work helps you plan realistically and coordinate trades effectively. Here’s the professional timeline for a typical medium-sized kitchen renovation: Phase 1: Strip Out and First Fix (Week 1–2) Days 1–3: Demolition and strip out. Old units removed, appliances disconnected, tiles stripped from walls. If you’re removing walls, this happens now — with proper structural calculations and Building Control notification for load-bearing walls. Days 4–10: First fix trades. Plumber runs new pipework, electrician installs new circuits and moves sockets, gas engineer relocates boiler or hob supply. Plasterers can’t start until all services are first-fixed and chased into walls. Phase 2: Plastering and Making Good (Week 2–3) Days 11–13: Wall preparation and plastering. This is where we come in. Chase lines are filled, walls prepared with bonding coat if needed, then skim coated with finishing plaster. For kitchen walls, we typically use Thistle Multi-Finish which provides a harder, more durable surface than standard board finish. On external walls or those prone to condensation, we’ll spec insulated plasterboard (typically 50mm+ Celotex or Kingspan bonded to 12.5mm British Gypsum board) to meet thermal regulations and prevent mould growth behind units. Days 14–16: Drying time. This is non-negotiable. Fresh plaster needs 7–14 days to dry fully before painting or tiling, depending on conditions. You can speed drying with gentle heat and ventilation, but never rush it — trapped moisture causes paint to bubble and tiles to fail. For detailed information on plaster drying times and what affects them, see our guide on how long plaster takes to dry. Phase 3: Second Fix and Installation (Week 3–5) Days 17–20: Flooring installation. Goes down before units to provide a level base and allow you to move units around if needed. Porcelain tiles need 24–48 hours to cure before walking on them. Days 21–28: Kitchen units fitted. Base units installed first, levelled carefully, then wall units hung. Worktops templated and fitted (stone worktops need a separate visit for templating, then 7–10 days fabrication time). Days 29–32: Appliances and second fix. Sink connected, hob wired in, tiling completed around worktops, electrician fits faceplates and lights, decorator applies mist coats to fresh plaster and final paint. Phase 4: Finishing (Week 5–6) Days 33–35: Snagging and finishing. Silicon seals applied around worktops and sinks, handles fitted to units, touch-up painting completed, final appliances installed and commissioned. ⚠️ Warning: Never allow kitchen fitters to install units against fresh plaster that hasn’t fully dried. The moisture will be trapped behind units and cause mould, bubbling paint, and potential unit damage. Minimum 7 days drying time, ideally 10–14 days in winter months. Planning Permission and Building Regulations Most kitchen renovations fall under permitted development and don’t require planning permission. However, Building Regulations approval is mandatory for: Removing or altering load-bearing walls (structural changes) Moving or installing new gas appliances Significant electrical work (new circuits, consumer unit changes) New drainage or modifications to existing waste systems Windows or external doors that affect thermal performance Your electrician must be registered with a Competent Person Scheme (NICEIC, NAPIT, or equivalent) to self-certify electrical work. Gas work must be done by a Gas Safe registered engineer. For structural work, you’ll need calculations from a structural engineer and Building Control sign-off. In 2026, new builds and major renovations must achieve higher energy efficiency standards under the updated Part L. This

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