What size TV should I buy for my viewing distance?
A practical UK homeowner guide to what size tv should i buy for my viewing distance?, with tools, materials, safety notes, step-by-step advice, common mistakes and when to book a professional.
Quick answerFor most living rooms, TV size should be chosen from viewing distance, wall width, seating height, glare and how the room is used. A 55-inch TV often suits around 2-2.5 metres, 65-inch around 2.5-3 metres, and 75-inch around 3-3.5 metres, but wall layout and mounting height matter just as much.
DifficultyBeginnerTimeRealistic timeline: 30 minutes to 2.5 hours for a straightforward installation after measuring and checking wall type. Heavy items, poor walls, hidden services or multiple fittings take longer.DIY costplanning onlyProfessional costTV mounting from £89 call-out
Small or medium job
Who this guide is for, and what decision it helps you make.
Best forHomeowners comparing products, merchants or materials before spending money.You will learnFor most living rooms, TV size should be chosen from viewing distance, wall width, seating height, glare and how the room is used. A 55-inch TV often suits around 2-2.5 metres, 65-inch around 2.5-3 metres, and 75-inch around 3-3.5 metres, but wall layout and mounting height matter just as much.Next actionSend photos, postcode, measurements and deadline. We will tell you whether the next step is a fixed quote, inspection or professional visit.
DIY or professional?
Can you do this yourself?
The planning, cleaning, preparation and low-risk inspection steps are suitable for careful beginners when the area is safe and accessible.
Before you start
Understand the job before you touch the tools or spend money.
The planning, cleaning, preparation and low-risk inspection steps are suitable for careful beginners when the area is safe and accessible.
Do not DIY if the work involves gas, unsafe electrics, active leaks, structural change, waterproofing failure, tenant disputes, hotel guests, commercial downtime or expensive materials you cannot afford to damage.
Tools and materials
What you need before you start.
Required skillsCareful observationBasic preparationFollowing instructions in orderTools requiredTape measureMasking tapeStud detectorWall type checkCable route planMaterials requiredTV bracketCorrect fixingsCable trunkingHDMI/power planningWall repair materials if needed
Safety and UK regulations
Read this before touching the job.
Safety warningsStop if you see water near electrics, gas appliances, structural damage or unsafe access.Use gloves, ventilation and eye protection where products or dust are involved.Do not start work if you cannot identify the material, fixing, pipe, cable or surface.UK regulations and professional limitsElectrical work may require a qualified electrician and may fall under Part P.Gas work must only be handled by Gas Safe registered engineers.Landlords and commercial operators should consider safety, access and documentation duties.
Price and timeline reality
What affects cost, duration and whether a fixed quote is possible.
Realistic UK cost rangeDIY: planning onlyProfessional: TV mounting from £89 call-outPrices are guidance only. A fixed quote requires photos, measurements or inspection.What affects the priceScopeConditionMaterialsAccessUrgencyWhether inspection is requiredWhat affects the timelinePreparationProduct availabilityAccessWorking timeTesting and clean-up
Step by step
How an experienced tradesperson would think through it.
Step 1
Measure the distance from eye position on the sofa to the TV wall.
Why it matters: this stage reduces mistakes before they become expensive. Work slowly, check the result, and do not move to the next step until the area is safe and understood.
Step 2
Tape the TV outline on the wall before buying.
Why it matters: this stage reduces mistakes before they become expensive. Work slowly, check the result, and do not move to the next step until the area is safe and understood.
Step 3
Check glare from windows and lights.
Why it matters: this stage reduces mistakes before they become expensive. Work slowly, check the result, and do not move to the next step until the area is safe and understood.
Step 4
Confirm wall type before choosing a bracket.
Why it matters: this stage reduces mistakes before they become expensive. Work slowly, check the result, and do not move to the next step until the area is safe and understood.
Step 5
Plan socket, cable and soundbar positions.
Why it matters: this stage reduces mistakes before they become expensive. Work slowly, check the result, and do not move to the next step until the area is safe and understood.
Step 6
Choose installation height so the screen is comfortable, not showroom-high.
Why it matters: this stage reduces mistakes before they become expensive. Work slowly, check the result, and do not move to the next step until the area is safe and understood.
Technical note
The cheapest product is often not the cheapest installed result.
Electrical work may require a qualified electrician and may fall under Part P.
Gas work must only be handled by Gas Safe registered engineers.
Decision flowBuying decision
Compare specification, compatibility, delivery, waste, returns, installation labour and failure risk before buying.
Documents, approvals and rules
What to check before the job becomes expensive.
Regulation notesFor rentals, commercial spaces, hotels and managed blocks, check landlord, lease, building rules and safety responsibilities before work starts.Useful documentsPhotos of the existing conditionMeasurements and room/property detailsProduct manuals or model numbers where relevantQuotes, invoices and certificates for previous workDo not rushDo not hide defects before they are diagnosed.Do not buy expensive materials before checking compatibility.Do not accept a vague quote for regulated or hidden work.
Cost guide
What it usually costs.
DIY costplanning onlyProfessional costTV mounting from £89 call-outTime requiredRealistic timeline: 30 minutes to 2.5 hours for a straightforward installation after measuring and checking wall type. Heavy items, poor walls, hidden services or multiple fittings take longer.Best next stepHandyman
Common mistakesBuying by inches only.Mounting above a fireplace without checking heat and neck angle.Using the fixings supplied without checking wall type.Professional secretsA TV that looks impressive in a shop can dominate a small London living room.Mounting height is where many homes get it wrong.Heavy TVs on plasterboard need proper fixing decisions, not guesswork.Red flagsA quote with no scope, exclusions or assumptions.Someone pushing you to start before photos, measurements or access are clear.No explanation of what happens if the job changes.Advice that ignores water, electrics, gas, structural risk or manufacturer instructions.
Before hiring anyone
Questions that protect your budget before work starts.
Ask these questionsWhat exactly is included and excluded from the price?Can this be quoted from photos, or is inspection required?What could change the price once work starts?Who supplies materials, and who carries the risk if they do not fit?What happens if hidden damage is found?How long should the job take, including drying, curing, testing or return visits?What Perfect Living needsPostcode and access detailsPhotos or short video of the issueMeasurements, product links or drawings where relevantDeadline, tenant/guest constraints and parking notesHow Perfect Living can helpSend photos, postcode, measurements and deadline. We will tell you whether the next step is a fixed quote, inspection or professional visit.If the job is simple, photos may be enough for a price range or fixed quote.If the job involves hidden defects, structure, water, electrics or high-value finishes, inspection is the safer first step.
Interesting factMost bad DIY results are caused by preparation mistakes, not the final visible step.
Keep a simple property log with photos, product names, paint colours, fittings, dates and any professional advice received.
Troubleshooting
If it does not go to plan.
IssueLikely causeFix
The result looks unevenPoor preparation, wrong product or unsuitable surfaceStop, clean back where safe and reassess the method before continuing.
The job takes much longer than expectedCondition, access or hidden defects were underestimatedBreak the task into sections or request a fixed professional quote.
Something feels unsafeUnknown electrics, water, gas, access or structural riskStop and contact the correct professional.
Printable checklist
Before you start, check these items.
Preparation checklistMeasure the distance from eye position on the sofa to the TV wall.Tape the TV outline on the wall before buying.Check glare from windows and lights.Confirm wall type before choosing a bracket.Plan socket, cable and soundbar positions.Choose installation height so the screen is comfortable, not showroom-high.Shopping listTape measureMasking tapeStud detectorWall type checkCable route planTV bracketCorrect fixingsCable trunkingHDMI/power planningWall repair materials if neededProfessional decision pointsStop if you see water near electrics, gas appliances, structural damage or unsafe access.Use gloves, ventilation and eye protection where products or dust are involved.Do not start work if you cannot identify the material, fixing, pipe, cable or surface.
SummaryFor most living rooms, TV size should be chosen from viewing distance, wall width, seating height, glare and how the room is used. A 55-inch TV often suits around 2-2.5 metres, 65-inch around 2.5-3 metres, and 75-inch around 3-3.5 metres, but wall layout and mounting height matter just as much.
Keep a simple property log with photos, product names, paint colours, fittings, dates and any professional advice received.
Questions
Frequently asked questions.
Can a complete beginner use this guide?
Yes. It is written to help beginners understand the task, risks, tools and professional limits before starting.
When should I book Perfect Living instead?
Book help when the work affects water, electrics, safety, deadlines, expensive finishes, tenants, guests or commercial operations.
Why does preparation matter so much?
Most failed DIY jobs fail before the visible work starts: wrong product, dirty surface, poor measurement, unsafe access or missing information.
