How Much Does a Shed Roof Replacement Cost in 2026? Felt, EPDM and Timber Repair Prices Explained
If your shed roof has started leaking, you are probably wondering how much it will cost to fix it before damage spreads. For a typical 8x6 ft garden shed in the UK, a straightforward felt replacement usually lands between £250 and £450, while upgrading to EPDM rubber can cost £450 to £800. If the timber underneath is rotten, costs can easily push past £1,000.
If you are searching for shed roof replacement cost in 2026, you are likely dealing with leaks, rotting timber or worn out felt that has reached the end of its life. Shed roofs are often overlooked until they fail, but they are exposed to the same UK weather as your main house roof. Rain, frost and UV exposure all take their toll.
Costs vary depending on size, material and condition of the structure beneath. A simple re felting job on a small garden shed might cost under £200 in materials, while a full strip out with timber replacement and a new EPDM rubber roof can exceed £1,000. The key is understanding what you actually need before you spend money.
This guide breaks down real UK prices for felt, EPDM and timber repairs, along with labour costs, timeframes and common pitfalls seen daily on site.
Average Shed Roof Replacement Cost in the UK
Most shed roof jobs fall into one of three categories. A basic overlay, a full replacement, or structural repair with new covering. Your costs will depend heavily on which category applies.
| Type of Work | Typical Cost Range | Labour Time |
|---|---|---|
| Felt overlay on existing roof | £120 to £300 | 2 to 4 hours |
| Full felt replacement | £200 to £500 | 4 to 8 hours |
| EPDM rubber roof installation | £400 to £900 | 1 day |
| Timber deck replacement plus new covering | £500 to £1,200+ | 1 to 2 days |
These figures assume a standard garden shed between 6x4 ft and 10x8 ft. Larger outbuildings such as workshops or garden offices increase costs quickly due to material quantity and access.
Access matters more than most homeowners expect. A shed tucked behind narrow garden paths or obstacles adds time and labour. Waste disposal can also add £50 to £150 depending on volume and local fees.
Detailed Cost Breakdown
| Cost Element | Typical Price Range |
|---|---|
| Labour | £150 to £400 |
| Materials | £100 to £500 |
| Waste disposal | £50 to £150 |
| Optional upgrades, trims, fascias | £50 to £200 |
| Optional insulation upgrade | £80 to £250 |
Tradespeople often find that homeowners underestimate disposal and finishing details. Items like edge trims and proper drip edges are small adds, but they make a big difference to longevity.
What Drives the Cost of a Shed Roof Replacement
Several factors influence price beyond just the material you choose.
Size and Roof Area
The larger the shed, the higher the material and labour cost. Roofing is typically priced per square metre. Felt ranges from £5 to £15 per m², while EPDM sits between £15 and £30 per m² supplied only.
Access and Site Conditions
Narrow access, steps, or obstacles increase labour time. If materials need to be carried through the house or over fences, expect higher quotes.
Material Choice
Felt is cheaper upfront but needs replacing sooner. EPDM costs more but offers long term value. Tradespeople often recommend EPDM for sheds used as offices or storage for expensive tools.
Condition of the Existing Roof Deck
If the timber beneath is damaged, it must be replaced. This is one of the biggest cost drivers. Many jobs that start as simple felt replacements turn into structural repairs once opened up.
Edge Detailing and Finishing
Drip edges, fascias and trims improve drainage and durability. Skipping these saves money short term but leads to leaks at vulnerable points.
If you are unsure whether your issue is surface level or structural, it is worth comparing with broader roofing costs in How Much Does It Cost to Replace a Roof in the UK in 2026? Materials, Labour and Scaffolding Explained. The same principles apply, just on a smaller scale.
Shed Roof Inspection Checklist Before You Replace
Before calling a tradesperson, a quick inspection helps you understand the likely scope of work.
- Check for visible cracks, tears or bubbling in felt
- Press gently on the roof surface for soft or spongy areas
- Look for sagging between joists
- Inspect inside for water stains or drips
- Check edges and corners where leaks commonly start
- Look for moss build up or blocked drainage paths
Tradespeople often say that by the time water is visible inside, damage has been building for months.
Felt vs EPDM Shed Roofing Comparison
| Feature | Felt | EPDM |
|---|---|---|
| Lifespan | 5 to 20 years | 20 to 30 years |
| Cost per m² | £5 to £15 | £15 to £30 |
| Maintenance | Moderate | Low |
| Installation complexity | Low to medium | Medium |
| Best for | Budget sheds | Long term durability |
Felt Shed Roof Replacement Costs
Felt remains the most common shed roofing material in the UK due to its low cost and ease of installation. However, there is a big difference between basic mineral felt and more durable torch on systems.
Standard Shed Felt
This is the cheapest option and widely available from DIY stores.
- Material cost, £40 to £120 depending on size and thickness
- Installed cost, £200 to £400
- Lifespan, 5 to 10 years
A typical 8x6 ft shed will require around 2 to 3 rolls of felt plus adhesive and fixings. Installation usually takes half a day.
Heavy Duty or Torch On Felt
Higher grade felts use bitumen layers and are often heat bonded.
- Material cost, £80 to £200
- Installed cost, £300 to £600
- Lifespan, 10 to 20 years
Torch on systems involve heating bitumen with a gas torch. Fire safety matters here. Surfaces must be clear of debris, and extinguishing equipment should be on hand. The Health and Safety Executive guidance on hot works outlines safe procedures.
If you want a deeper understanding of felt types and performance, see Roofing Felt Types Explained Torch On Shed Felt and Breathable Membranes Compared.
EPDM Rubber Shed Roof Costs
EPDM has become the go to upgrade for shed roofs over the last decade. It is a single piece rubber membrane that is glued down, with no seams in smaller installations.
- Material cost, £150 to £350
- Installed cost, £400 to £900
- Lifespan, 20 to 30 years
Installation Process
The roof deck is cleaned and primed, adhesive is applied, and the rubber sheet is laid in one piece. Edges are sealed with trims. A typical install for a small shed takes around 4 to 6 hours, but adhesives require dry conditions to cure properly.
Pros and Cons
- Highly durable and weather resistant
- Minimal maintenance
- Higher upfront cost
- Requires careful installation
When EPDM Is the Best Choice
EPDM suits larger sheds, garden offices, and any structure storing valuables. Tradespeople often recommend it where access is difficult, as fewer future repairs are needed.
Timber Roof Deck Repairs and Replacement
Many shed roof problems are not just about the covering. Once water gets in, the timber beneath starts to rot. Ignoring this leads to sagging and structural failure.
Common Timber Issues
- Rotten OSB or plywood sheets
- Warped joists from prolonged moisture exposure
- Loose or failing fixings
Typical Material Requirements
A standard shed may require 2 to 4 OSB boards, each costing £15 to £30. Joist replacement adds timber lengths at £10 to £25 each.
Repair Costs
- Minor patch repair, £100 to £250
- Partial deck replacement, £250 to £600
- Full deck replacement, £400 to £900
Tradespeople often upgrade to 12mm or 18mm boards for better strength. Proper spacing and fixing are key to preventing future movement.
Any structural timber replacement should follow basic guidance in UK building regulations, particularly around structural stability and moisture resistance, even though small sheds often fall outside formal control.
Labour Costs and Timeframes
Labour typically accounts for 40 percent to 60 percent of the total cost.
- Handyman or general builder day rate, £150 to £250
- Specialist roofer day rate, £200 to £350
Typical Project Timeline
- Initial inspection, 30 to 60 minutes
- Removal of old roof, 1 to 2 hours
- Deck repairs if needed, 2 to 6 hours
- Installation of new covering, 2 to 6 hours
- Curing and finishing, up to 24 hours depending on material
Factors That Extend Timelines
Weather is the biggest factor. Rain or cold temperatures delay adhesive curing. Hidden timber damage can also extend jobs unexpectedly.
Solo Tradesperson vs Team
A single roofer may take a full day for even a modest job. A two person team can often complete the same work in half the time, which can reduce labour cost slightly.
Work at height still applies even on small sheds. Following HSE guidance on safe ladder use and stability is essential to avoid accidents.
Repair or Replace, Making the Right Choice
Not every issue requires a full replacement. Knowing when to repair can save money.
Simple Decision Process
- Check age of current roof
- Inspect for multiple leaks or widespread wear
- Assess timber condition
- Compare repair cost vs replacement lifespan
Repair Makes Sense If
- The leak is localised
- The felt is under 5 years old
- The timber deck is still sound
Replacement Is Better If
- Multiple leaks are present
- The felt is cracking or brittle
- You see signs of rot or sagging
Quick fixes can buy time. For example, internal patching techniques are covered in How to Repair a Leaking Flat Roof from Inside Before Further Damage Spreads, but these are temporary solutions.
Common Mistakes to Avoid
This is where many shed roof jobs go wrong.
Overlaying New Felt on Rotten Timber
This traps moisture and accelerates decay. It often leads to full replacement within a year, doubling overall cost.
Poor Drainage
Flat roofs need a slight fall. Standing water leads to premature failure. Fixing pooling issues later can cost £200 to £500.
Using Cheap Materials
Low quality felt can fail within a few winters, leading to repeat costs.
Incorrect Fixings
Short or widely spaced nails cause lifting in wind. Repairs typically cost £100 to £300.
Ignoring Edge Detailing
Most leaks start at edges. Missing trims allow water ingress, often damaging the deck.
Another frequent issue is DIY installations without understanding overlaps and sealing. Even small errors allow water ingress.
Choosing the Right Tradesperson
Picking the right installer makes a noticeable difference to lifespan and finish.
- Look for roofing experience, not just general handyman skills
- Check for public liability insurance
- Ask about previous similar jobs
- Request a clear breakdown of labour and materials
- Be cautious of very low quotes
You can compare vetted tradespeople by posting a job on BookaBuilderUK and reviewing feedback from other homeowners.
Warranties and Guarantees
Most professional installers offer guarantees.
- Felt roofs, 1 to 5 years workmanship guarantee
- EPDM roofs, up to 10 years workmanship, with materials lasting longer
Always confirm what is covered. Materials and workmanship are often separate.
Do You Need Planning Permission or Building Regulations Approval?
Most shed roof replacements do not require planning permission, as long as you are not increasing overall height or altering the structure significantly.
According to Planning Portal guidance on outbuildings, sheds are usually permitted development if they meet size and location criteria.
Building regulations are generally not required for small detached sheds under 15 square metres. Exceptions apply if the shed is close to boundaries, used as sleeping accommodation, or includes electrics.
If you are adding power, Part P regulations apply. Electrical work must be carried out or certified by a qualified electrician, usually NICEIC registered.
Should You DIY or Hire a Professional?
A simple felt replacement is within reach for confident DIYers. However, mistakes are common and often cost more to fix later.
Professional installation is advisable if:
- You are using EPDM or torch on felt
- The roof structure needs repair
- You want long term reliability
A tradesperson will complete the job faster, ensure correct detailing, and dispose of waste properly.
FAQ
How long should a shed roof last in the UK?
Basic felt lasts around 5 to 10 years. Heavy duty felt can last up to 20 years. EPDM rubber roofs typically last 20 to 30 years if installed correctly and maintained.
Is EPDM worth the extra cost for a shed?
Yes, especially for larger sheds or valuable storage. EPDM offers significantly longer lifespan and fewer maintenance issues. Over time, it often works out cheaper than replacing felt multiple times.
Can I put new felt over old felt?
It is possible, but only if the existing felt and timber beneath are in good condition. In practice, full removal is usually better to check for hidden damage and ensure proper adhesion.
What is the cheapest way to fix a leaking shed roof?
The cheapest option is patch repair using roofing adhesive and a felt patch, costing under £50. This is temporary. A proper repair or replacement is needed for long term protection.
How do I know if the timber underneath is rotten?
Signs include spongy feel underfoot, visible sagging, dark staining, or a musty smell. In severe cases, the surface may crumble when pressed.
How much does shed roof replacement cost per square metre in the UK?
Felt replacement typically costs £40 to £80 per m² installed. EPDM ranges from £70 to £120 per m² depending on complexity and access.
Can I install EPDM on any shed roof?
Most flat or low pitch shed roofs are suitable, as long as the deck is sound and smooth. Uneven or damaged surfaces must be repaired first.
Final Thoughts
Shed roof replacement costs in 2026 vary widely, but most homeowners spend between £200 and £900 depending on materials and condition. Felt remains the budget option, while EPDM offers durability and peace of mind. The biggest cost surprises usually come from hidden timber damage, so a proper inspection is always worthwhile.
If you want the job done properly without guesswork, the easiest route is to post a job on BookaBuilderUK and get free quotes from vetted local tradespeople who know exactly what to look for.
