Garden Repair vs Replace UK 2026: Lawnmower, Hot Tub, Fencing, Decking & More

Your garden is one of the most valuable spaces in your home — and keeping it in top shape means knowing when to repair what you already have and when to cut your losses and replace. From a lawnmower that refuses to start to a shed with a sagging roof, every UK homeowner faces these decisions regularly. This comprehensive garden repair vs replace guide covers the real UK costs for 2026, practical decision frameworks, and honest advice on lawnmowers, hot tubs, fencing, decking, sheds, and patios. We use the 50% rule: if the repair costs more than half the price of a replacement, it is usually time to replace.

Whether you are trying to save money on a quick fix or wondering if it is finally time to invest in an upgrade, this guide has the data and advice you need. All prices include labour and VAT at 2026 UK rates, sourced from Checkatrade, Which?, and MyBuilder.

Contents

1. Lawnmower Repair vs Replacement
2. Hot Tub Repair vs Replacement
3. Fencing Repair vs Replacement
4. Decking Repair vs Replacement
5. Shed Repair vs Replacement
6. Patio & Paving Repair vs Replacement
7. Garden Item Repair Costs UK 2026
8. Garden Replacement Costs UK 2026
9. Garden Items Lifespan Guide
10. Seasonal Maintenance Checklist
11. Frequently Asked Questions

Lawnmower Repair vs Replacement

A reliable lawnmower is the backbone of any decent-looking garden, and when yours starts playing up — refusing to start, cutting unevenly, or losing power — you need to decide quickly whether to repair or replace. The answer depends on the type of mower, its age, and what is actually wrong with it.

Petrol Lawnmower Repairs

Petrol mowers remain popular in the UK for medium to large gardens. Common faults include a mower that will not start (usually a spark plug, carburettor, or stale fuel issue), blunt or damaged blades, self-propulsion failure, and engine overheating. A basic annual service — covering spark plug, air filter, oil change, and blade sharpening — costs £50–£80 and is well worth the investment. Blade replacement including fitting typically runs £30–£60.

More serious issues like a failed self-propelled drive can cost £80–£140 to fix, while a seized engine or cracked crankshaft often means the mower is beyond economical repair. Popular brands like Honda, Mountfield, and Hayter have widely available parts, which keeps repair costs reasonable. Less common brands may prove harder and more expensive to source parts for.

Electric & Cordless Mower Repairs

Electric mowers (corded and cordless) have fewer moving parts than petrol models, but when the motor burns out, repair costs of £80–£150 can approach the price of a new budget mower. Cordless models face battery degradation over time — typically after 3–5 years or 500 charge cycles. A replacement battery for brands like Bosch, Makita, or Ryobi costs £60–£150 depending on voltage and capacity. If your mower is over five years old and needs both a new battery and motor work, replacement is almost always the smarter financial choice.

Robotic Mowers: Repair or Upgrade?

Robotic lawnmowers from Husqvarna (Automower), Worx (Landroid), and Bosch (Indego) are increasingly popular in UK gardens. Battery replacement costs £100–£200, and boundary wire repairs run £50–£100. The main board or charging station can cost £150–£300 to replace. Given that entry-level robotic mowers now start at £400–£600, a major repair on an older model often pushes past the 50% threshold. If your current petrol or electric mower needs a significant repair and your lawn is under 500 m², this could be the perfect moment to upgrade to robotic. As we cover in our true cost of running old appliances guide, the ongoing savings in time and fuel can be substantial.

Hot Tub Repair vs Replacement

Hot tubs are one of the most expensive garden items to both buy and repair, so getting this decision right can save you thousands of pounds. The repair-or-replace equation varies enormously depending on whether you have an inflatable hot tub or a hard-shell acrylic model.

Common Hot Tub Faults & Repair Costs

The most frequent hot tub problems in the UK include:

• Pump failure: The pump circulates water and powers the jets. Replacement costs £250–£500 including labour — one of the most common and expensive repairs.
• Heater element failure: If the water is not heating, the heater element or thermostat may need replacing at £200–£400.
• Control board (PCB) failure: The electronic brain of your hot tub. Replacement costs £300–£600 and can be tricky to source for older or budget models.
• Jet malfunction: Individual jet replacements are relatively cheap at £10–£30 each, but if multiple jets are failing it may indicate broader plumbing issues.
• Shell leaks: Small leaks can sometimes be patched for £100–£250, but structural cracks in the acrylic shell are often terminal.
• Ozone generator failure: Replacement runs £100–£200 and is generally worthwhile for water quality.

Inflatable vs Acrylic: Very Different Calculations

An inflatable hot tub (Lay-Z-Spa, Intex, etc.) costs £300–£600 new and has a typical lifespan of just 2–4 years. Given that pump replacements alone can cost £100–£200 for inflatable models, and replacement liners are hard to find, these tubs are rarely worth repairing beyond simple puncture patches. The 50% rule almost always points to replacement.

Acrylic hot tubs are a different story entirely. A quality model from brands like Jacuzzi, Hotspring, or Artesian costs £3,000–£15,000 and should last 15–20 years. At these price points, individual component repairs — even expensive ones like a pump at £500 — are well worth doing. It is only when multiple systems fail simultaneously, the shell is cracked, or running costs have become excessive due to poor insulation and outdated equipment that replacement makes sense.

Running Cost Considerations

An older, poorly insulated hot tub can cost £80–£120 per month to run on electricity in the UK, while a modern, well-insulated model might cost £30–£50 per month. Over a year, that is a potential saving of £600–£840, which should factor into your repair-or-replace decision. If your hot tub is over 12 years old with high running costs and needs a major repair, the combined savings from a new energy-efficient model can repay the investment within 3–5 years.

Fencing Repair vs Replacement

Fencing takes a battering from the British weather. High winds, persistent rain, and ground-level damp can wreck panels and rot posts faster than most homeowners expect. The question of whether to repair or replace depends on the extent of the damage and the condition of the fence posts — because the posts are the foundation of the whole structure.

Fence Panel Repair vs Replacement

A single damaged lap panel can be replaced for £60–£120 including supply and fitting. This is almost always worth doing if the surrounding panels and posts are sound. Minor damage — a couple of broken slats or a loose rail — can often be fixed for under £30 with basic DIY skills, some treated timber, and galvanised nails.

However, if multiple panels are failing, it is often more cost-effective to replace an entire run. Fencing costs £40–£60 per metre for budget options (standard lap panels on concrete posts), £60–£90 per metre for mid-range (closeboard on timber posts), and £90–£150 per metre for premium (hardwood, hit-and-miss, or contemporary designs). For a typical 15-metre garden boundary, you are looking at £600–£2,250 for full replacement.

Fence Post Repair: Concrete Spur vs Full Replacement

Rotten fence posts are the number one cause of fence collapse in the UK. You have two main options:

• Concrete spur repair (£40–£70 per post): A concrete spur is bolted to the remaining sound section of the timber post, effectively extending its life by 10–15 years. This is ideal when the post is rotten at the base but sound above ground. It is cheaper and less disruptive than full replacement.
• Full post replacement (£80–£150 per post): Necessary when the post is rotten throughout. Concrete posts are the most durable option (25+ years) but cost more initially. Timber posts treated with pressure-treated tanalised wood are the standard choice and last 10–15 years.

Storm Damage & Insurance

After winter storms, many UK homeowners face a rush to get fencing repaired. Check your home insurance — many policies cover storm damage to fencing, though you may need to pay an excess of £100–£250. Get photographs before any temporary repairs and request at least three quotes from local fencing contractors. According to Checkatrade, demand for fencing work peaks in January–March, so book early for the best availability and pricing. For more on what tradespeople charge, see our guide to UK tradesperson costs in 2026.

DIY vs Professional Fencing

Fencing is one of the more accessible garden DIY jobs. Replacing a single panel yourself can save £30–£60 on labour. However, full fence runs involving post installation — especially in clay or rocky soil — are physically demanding and benefit from professional installation. A fencing contractor can typically install a 15-metre run in 1–2 days. Budget fencers charge from £150–£250 per day while experienced contractors charge £250–£400 per day.

Decking Repair vs Replacement

Decking transforms a garden, but it does not last for ever — especially the softwood timber decking that dominates UK gardens. Knowing when to patch up a few boards and when to invest in a full replacement (perhaps upgrading to composite) can save you significant money and hassle.

Common Decking Problems

The most frequent issues with UK garden decking include:

• Rotting boards: Softwood decking (typically treated pine) is prone to rot, especially in shaded, damp areas. Individual rotting boards can be replaced for £15–£40 per board — a straightforward repair.
• Loose fixings and squeaky boards: Over time, screws work loose and boards shift. Re-fixing with new stainless steel decking screws costs very little and can be done as a DIY job in an afternoon.
• Splintering: Older timber decking develops splinters as the surface weathers. Sanding and re-treating can restore the surface for £5–£10 per m² in materials.
• Mould, algae, and slipperiness: A pressure wash (£50–£150 for professional cleaning of a typical deck) followed by an anti-slip decking oil can resolve this. It is a maintenance task rather than a repair, but ignoring it leads to faster deterioration.
• Subframe rot: This is the most serious issue. If the joists beneath the boards are rotten, the entire deck may be unsafe. Subframe replacement effectively means a full rebuild.

When to Replace Individual Boards vs the Full Deck

If fewer than 20–30% of boards are damaged and the subframe is solid, replacing individual boards is the obvious choice. It is quick, affordable, and extends the deck's useful life by several years. When 30–40% or more of the boards are failing, or the subframe shows signs of decay, a full replacement becomes more cost-effective — and gives you the opportunity to upgrade.

Composite Decking: The Upgrade Option

Composite decking (brands like Trex, Millboard, and Cladco) costs more upfront — typically £120–£300 per m² installed versus £80–£150 per m² for timber — but lasts 25–30 years with virtually no maintenance. There is no need for annual sanding, oiling, or worrying about rot. For a 15 m² deck, you might pay £1,800–£4,500 for composite compared to £1,200–£2,250 for timber. The composite option pays for itself within 8–12 years when you factor in timber maintenance costs of £100–£200 per year. If you are replacing a full deck anyway, seriously consider the composite upgrade. Check our guide on how long things last for detailed lifespan comparisons.

Shed Repair vs Replacement

The humble garden shed is one of the hardest-working structures in any UK garden — storing tools, bikes, furniture, and everything else. But sheds are also exposed to the elements on every side, and many homeowners are surprised by how quickly a neglected shed deteriorates. The good news is that many common shed problems are very repairable.

Common Shed Problems & Repair Costs

• Leaking roof / worn felt: Shed roof felt has a typical lifespan of 5–10 years. Re-felting a standard 8×6 ft shed costs £100–£200 professionally, or £30–£60 in materials for DIY. This is one of the best-value repairs you can do — a dry shed lasts many years longer.
• Rotting base and floor: Ground-level rot is the most common structural issue. Replacing a rotten floor costs £80–£200 depending on size. If the rot has spread to the lower wall panels and framing, the shed may be beyond economical repair.
• Broken or sagging door: Door replacement or rehinging costs £50–£120. Often the door frame has warped rather than the door itself, which may require more extensive work.
• Damp and condensation: Poor ventilation causes damp, mould, and eventually rot. Adding vents (£20–£40 DIY) and ensuring the shed sits on a raised base or bearers can resolve this cheaply.
• Broken windows: Replacement shed windows cost £20–£50 for standard sizes and are easy to fit.

When the Base Is Too Far Gone

The base of a shed — both the floor and the lower 15–20 cm of the walls — is the most vulnerable area. If you can push a screwdriver into the timber and it sinks in easily, you have serious rot. When the base framework, floor joists, and lower panels are all affected, the cost of repair can quickly exceed the price of a new shed. A basic 6×4 ft shed starts at £200–£400, making extensive structural repairs on an equivalent shed hard to justify.

Replacement Shed Options

Modern sheds come in three main materials:

• Wooden sheds (£200–£1,500+): The traditional choice. Tongue-and-groove construction is more weather-resistant than overlap. Requires regular treatment with wood preserver (every 1–2 years). Expect a 10–20 year lifespan with good maintenance.
• Metal sheds (£150–£800): Virtually maintenance-free, fireproof, and rot-proof. However, they can suffer condensation, are prone to dents, and are not as attractive. Brands like Yardmaster and BillyOh are popular in the UK. Lifespan of 15–25 years.
• Plastic/resin sheds (£300–£1,200): No maintenance, no rot, UV-resistant. Brands like Keter and Lifetime dominate. They are lighter and easier to assemble but can blow away in strong winds if not anchored. Lifespan of 15–25 years.

For most UK homeowners, a mid-range wooden tongue-and-groove shed (£400–£700 for a 6×4 ft) strikes the best balance of aesthetics, durability, and cost — provided you commit to treating it regularly. If you are tired of the maintenance cycle, a plastic or metal shed eliminates the work entirely.

Patio & Paving Repair vs Replacement

A well-laid patio should last decades, but over time you may notice sunken slabs, cracked paving, crumbling joints, and persistent weed growth. The question is whether these are simple maintenance issues or signs that a full re-lay is needed.

Common Patio Problems

• Sunken slabs: Usually caused by inadequate sub-base preparation or ground movement. Individual slabs can be lifted, re-bedded on fresh mortar, and re-levelled for £30–£60 per slab professionally. This is a worthwhile repair if only a few slabs are affected.
• Cracked paving slabs: Replacement slabs cost £5–£30 each depending on material, plus £20–£40 for fitting. Finding an exact match for older slabs can be tricky — consider buying a few spares when your patio is first laid.
• Failed pointing/jointing: The mortar between slabs deteriorates over time, letting in water and weeds. Re-pointing costs £15–£30 per m² and dramatically improves both appearance and longevity. For a 20 m² patio, budget £300–£600.
• Weed growth and moss: Regular brushing and a patio-safe weed killer keep this under control. A professional jet wash and re-sand costs £5–£10 per m².

Re-pointing vs Re-laying

If the slabs themselves are sound but the joints have failed, re-pointing is the obvious and cost-effective choice. Modern resin-based jointing compounds (like UltraScape or Sika) last longer than traditional sand-and-cement and inhibit weed growth. However, if slabs are extensively cracked, uneven, or the sub-base has failed (causing widespread sinking), a full re-lay is necessary.

Patio Replacement: Material Options & Costs

When replacing a patio, you have several material choices:

• Concrete slabs (£40–£60 per m²): The budget option. Functional and available in many styles, including those that mimic natural stone. Brands like Marshalls and Bradstone offer good UK ranges.
• Block paving (£60–£100 per m²): Versatile and attractive. Can be lifted and re-laid if the ground settles. Available from Tobermore, Marshalls, and Brett. Also a popular choice for driveways — see our Driveway Calculator for costs.
• Natural stone (£80–£150 per m²): Indian sandstone, limestone, and slate offer a premium look. Prices vary hugely by stone type. Indian sandstone is the most affordable natural option.
• Porcelain paving (£90–£180 per m²): The premium modern choice. Extremely hard-wearing, non-porous, and virtually maintenance-free. Low water absorption means no frost damage. Brands like Stonemarket and PorcelPave lead the UK market.
• Resin bound (£60–£100 per m²): A seamless, permeable surface that is popular for contemporary gardens and front drives. Requires a solid base and professional installation.

For a 20 m² patio, total replacement costs range from £800–£1,200 (concrete slabs) to £1,800–£3,600 (porcelain or natural stone). This includes excavation, sub-base, and laying. Regional pricing varies — expect to pay 10–20% more in London and the South East compared to the North. Our UK Repair Costs 2026 guide has more detail on regional price differences.

Garden Item Repair Costs UK 2026

The table below summarises the most common garden repair costs across the UK in 2026. All prices include parts, labour, and VAT.

Garden Replacement Costs UK 2026

If repair is no longer economical, here is what you can expect to pay for full replacements in 2026. Prices include supply, delivery, and professional installation where applicable.

Garden Items Lifespan Guide

Understanding how long garden items typically last helps you plan ahead and budget for replacements before an emergency forces your hand. The table below gives average UK lifespans — actual lifespan depends heavily on maintenance, weather exposure, and quality of the original product. For a broader look at household item lifespans, see our full guide to how long appliances last.

Top Tips for Extending Lifespan

• Timber treatment is non-negotiable: Whether it is fencing, decking, or a shed, applying a quality wood preserver (Ronseal, Cuprinol, or Barrettine) every 1–3 years is the single most effective thing you can do. It prevents rot, UV damage, and insect attack.
• Sharpen mower blades at least once a year: A blunt blade tears grass rather than cutting it, putting more strain on the motor and shortening the mower's lifespan. A sharp blade also gives a healthier lawn.
• Hot tub water chemistry matters hugely: Test pH and sanitiser levels at least twice a week. Imbalanced water damages pumps, heaters, and seals — leading to expensive repairs that proper chemistry would have prevented.
• Keep shed bases dry: Raise your shed on bearers or a raised plastic base grid. This keeps timber off damp ground and can double the shed's lifespan.
• Clean decking before treating: Never apply oil or stain to dirty decking. A thorough clean with a decking cleaner or pressure washer first ensures the treatment penetrates properly.

Seasonal Maintenance Checklist

Prevention is always cheaper than cure. A little seasonal attention to your garden structures and equipment can prevent the most common and costly failures. Here is a practical checklist for each season, tailored to UK conditions.

🌱 Spring (March – May)

• Lawnmower: Service your petrol mower (oil, spark plug, air filter, blade). Charge cordless mower batteries fully. Check robotic mower boundary wire for winter damage.
• Fencing: Inspect all panels and posts for storm damage from winter. Replace any broken panels before the growing season makes access difficult.
• Decking: Pressure wash and inspect for rot. Apply decking oil or stain once the timber has dried for at least 48 hours after cleaning.
• Shed: Check the roof felt for tears and lifting. Look for signs of damp inside. Treat the exterior with wood preserver if it was not done in autumn.
• Hot tub: If winterised, recommission and shock-treat the water. Check filters and replace if needed. Test all jets and the heater.
• Patio: Pressure wash and check for sunken or cracked slabs. Re-point any failed joints before weeds take hold.

☀️ Summer (June – August)

• Lawnmower: Sharpen blades mid-season if mowing frequently. Clean the underside after each use to prevent grass build-up.
• Hot tub: Test water chemistry twice weekly in hot weather — bacteria multiply faster. Clean filters fortnightly. Check water level regularly as evaporation increases.
• Decking: Tighten any loose screws or fixings. Check for splinters and sand if needed. Keep areas under planters clear to prevent damp traps.
• Fencing: Ensure climbing plants are not pulling panels loose or trapping moisture against the timber.

🍂 Autumn (September – November)

• Shed: Clear leaves from the roof and gutters (if fitted). Apply wood preserver before the wet season — this is the most important time to treat. Check the base for signs of rot.
• Fencing: Apply wood preserver or fence paint before winter. Re-fix any loose panels or wobbly posts before storms hit.
• Decking: Clear leaves promptly — wet leaves accelerate rot and make decking dangerously slippery. Apply a final treatment if not done in spring.
• Lawnmower: Give the mower a final clean. Drain fuel from petrol mowers (stale fuel is the number one cause of starting problems). Store batteries indoors for cordless models. Store robotic mowers in a dry place.
• Hot tub: If not using over winter, drain, clean, and winterise. If keeping it running, ensure the cover is in good condition and the insulation is adequate to cope with freezing temperatures.

❄️ Winter (December – February)

• General: Avoid walking on frozen decking — it becomes extremely slippery and foot traffic can crack boards.
• Shed: Check the roof after heavy snowfall or storms. Clear snow from flat-roofed sheds to prevent collapse.
• Fencing: After storms, inspect immediately. Temporary bracing can prevent further damage while you arrange repairs.
• Hot tub: If running through winter, check the water level weekly and ensure the cover seal is intact. Keep the temperature at a minimum of 26°C to prevent pipe freezing.
• Planning: Winter is the ideal time to research and plan replacements. Many garden centres and online retailers have January sales, and tradespeople may offer lower rates before the spring rush.

Following this seasonal routine consistently is the cheapest form of garden maintenance there is. As we explain in our guide to the true cost of running old equipment, catching problems early and maintaining regularly can easily double the useful life of most garden items.

Related Guides

This garden guide is part of our comprehensive series of UK repair vs replace guides. Explore the others for advice on different areas of your home: