Swapping an internal door is one of the fastest ways to transform a room, but prices range from £25 to over £600 depending on materials and who hangs it. This guide breaks down the real numbers behind internal door prices, installation fees, and when you should fix instead of replace.

Average cost of a standard internal door: $100–$400 ·
Professional hanging labor (per door): $50–$150 ·
Typical door lifespan: 20–30 years ·
Most popular 2026 style: Shaker panel with glass inserts

Quick snapshot

1Confirmed facts
2What’s unclear
3Timeline signal
  • 2020–2022: Pandemic drives DIY door replacements up (Checkatrade)
  • 2024: Glass insert doors gain popularity (Checkatrade)
4What’s next

Six key facts at a glance: from raw material cost to the premium for fire-rated doors, the table below captures the spread.

Metric Value
Average door price (hollow-core) $100–$200
Average door price (solid wood) $300–$400
Average installation labor $75 per door
Typical door width 30–36 inches
Fire-rated door premium +30–50% cost
Most popular 2026 finish White painted MDF

The pattern: material alone dictates roughly two-thirds of your total spend.

How much do internal doors usually cost?

Factors affecting internal door price

Material choice is the biggest driver. Checkatrade home improvement cost guide reports standard hollow-core doors from £25 to £150, while solid wood options run £150–£400. Complexity adds cost: doors with glazing, fire ratings, or custom dimensions push the top end higher.

Average price range by material

  • Hollow-core: $100–$200 (Angi home service marketplace)
  • Solid-core or solid wood: $200–$400 (Checkatrade)
  • Glass doors and French doors: $300–$600 (Checkatrade)

Ireland-specific cost variations

According to Expert Windows Ireland door replacement specialist, replacement uPVC doors in Ireland start around €1,500 installed – but these are external doors. For internal doors, Irish buyers pay a premium on imported solid wood. WrightWindows Irish door retailer notes most homeowners spend €900–€2,500 for a new front door, with internal doors typically cheaper.

The upshot

Irish buyers should expect 10–20% higher prices on imported solid-core doors compared to UK market averages, driven by shipping and distributor margins.

Bottom line: Internal door pricing is dominated by material choice. Hollow-core offers the best value for budget projects; solid wood and glass inserts are premium upgrades that add both cost and character.

The implication: matching material to room function prevents overspending on doors that don’t need premium features.

How much does it cost to hang a door?

Labor rates for joiners and handymen

Checkatrade says professional door hanging typically costs £100–£350 per door, with replacement labour at £120–£400. Hourly rates range $40–$80 (Angi). In Ireland, Airtasker IE peer-to-peer services marketplace shows quotes in Dublin around €125–€300 for internal door installation.

DIY vs professional installation

A pre-hung door makes DIY feasible for a confident homeowner, saving $75–$150 in labour. But slab doors – those without a frame – require precise trimming and hinge routing, which most DIYers should leave to a tradesperson.

Hidden costs

  • Trimming the door to fit out-of-square frames: $20–$50 extra
  • New hinges, handles, and lockset: $15–$60
  • Disposal of old door: $10–$30

The implication: fitting a pre-hung door is almost always cheaper than a slab, because it eliminates frame assembly.

What to watch

Hourly rates can double for doors that need fire rating compliance or custom glass. Always ask the joiner for a fixed-price quote before work starts.

The pattern: choosing a pre-hung door upfront saves an average of £100 in extra joiner work.

Is it cheaper to fix a door or replace it?

Common door repairs and their costs

  • Hinge adjustment or tightening: $40–$70 (Checkatrade)
  • Fill cracks or small holes: $50–$100
  • Replace damaged panel: $100–$200

When repair makes sense

If the door is structurally sound and the issue is cosmetic or a misaligned hinge, repair is almost always the better choice. The 50% rule is useful: if the repair estimate exceeds half the cost of a new door of the same quality, replace.

When replacement is the better option

Rotted bottom, warped frame, or outdated style all tip the scale toward replacement. A new door plus installation runs $200–$600, but delivers better insulation, smoother operation, and modern aesthetics.

Bottom line: Fix minor issues under $100. For damage that threatens the door’s integrity, replacement is more cost-effective than piecemeal repairs.

The catch: the 50% rule works best when you compare like-for-like quality — a cheap hollow-core replacement isn’t worth it if your existing door is solid wood.

Do B&Q fit internal doors?

B&Q door fitting service details

B&Q offers a measured and fitted service for internal doors in the UK and Ireland. Fitting cost starts around £50 per door, excluding the door price. The service covers removal of the old door, fitting, and hardware installation.

Cost and process

Airtasker IE shows that local tradespeople in Ireland often match or beat B&Q’s bundled price, especially for multiple doors. Customers report mixed experiences with B&Q’s fitters, so checking recent reviews is recommended.

Alternatives

Wickes and Homebase also offer fitting services, while independent joiners in Ireland (check Expert Windows Ireland for contacts) can provide personalised quotes.

Why this matters

B&Q’s service is convenient but not always the cheapest for complex doors – local joiners may offer more flexibility on custom sizes and fire-rated requirements.

The implication: for single-door jobs, B&Q’s flat rate often wins; for multiple doors, independent quotes usually come in lower.

What is the current trend for internal doors?

Popular styles and finishes in 2026

Shaker doors remain the top choice, according to Checkatrade. White painted doors dominate, but natural oak is gaining ground. Glass inserts – frosted, clear, and wired – are trending as homeowners seek more natural light.

Material trends

Sustainable MDF with recycled content is entering the market, driven by environmental regulations. Solid wood remains premium for its durability and acoustic properties.

Colour and glass insert trends

Darker colours (charcoal, navy) are emerging for internal doors in modern interiors. Glass inserts are no longer a luxury; they now appear in standard Shaker doors at minimal premium.

The catch

Glass doors may cost 20–30% more than solid doors and can be less soundproof – a trade-off worth considering for bedrooms and bathrooms.

Three material choices, one clear pattern: hollow-core is budget-friendly, solid-core adds durability, and solid wood delivers premium aesthetics.

Material Cost (per door) Sound insulation Durability
Hollow-core $100–$200 Low Moderate (20 years)
Solid-core $200–$300 Medium High (30 years)
Solid wood $300–$400 High Very high (50+ years)

The pattern: material choice directly dictates acoustic performance, not just price.

12 technical details that matter when choosing an internal door: from weight to fire rating, the table below covers the full spec list.

Specification Typical value
Door thickness 35–45 mm
Standard widths 24, 28, 30, 32, 36 inches
Standard height 80 inches (2032 mm)
Weight (hollow-core) 15–25 lbs
Weight (solid-core) 35–50 lbs
Weight (solid wood) 50–80 lbs
Fire rating (standard) 20 minutes (FD20)
Fire-rated premium +30–50%
Acoustic rating (solid) RW 30–35 dB
Hardware compatibility Standard 2.5″ backset latch
Glazing options Single, double (insulated)
Finish types Unfinished, primed, pre-painted

The implication: knowing these specs before you buy prevents costly returns and fitting delays.

Upsides

  • Professional installation guarantees proper fit and operation
  • Pre-hung doors make DIY feasible for experienced homeowners
  • Labour costs are predictable with fixed-price quotes

Downsides

  • Professional labour adds 50–100% to total cost
  • Hourly rates vary widely, making budgeting tricky
  • Complex doors (fire-rated, glass) require specialist skills

The implication: weigh the convenience of professional fitting against the cost premium — for simple doors, DIY with pre-hung units wins.

Step 1: Measure the rough opening

Measure width at top, middle, and bottom. Measure height at left, centre, right. Use the smallest dimensions to order your pre-hung door.

Step 2: Choose your door and gather tools

Select from hollow-core (budget) or solid-core (durability). Tools needed: tape measure, level, screwdriver, shims, hammer, and a saw for minor trimming.

Step 3: Install the pre-hung unit

Place the door in the frame, shim the sides for plumb, and screw the hinge side first. Check operation by opening and closing before fixing the latch side.

Step 4: Add hardware and adjust

Install handle and lockset. If the door sticks, sand the high spot or deepen the hinge mortise slightly.

Bottom line: The pattern: careful measurement in step 1 eliminates 90% of installation headaches.
  • 2020–2022: Pandemic drives DIY door replacements up (Checkatrade)
  • 2023: White shaker doors become top seller
  • 2024: Glass insert doors gain popularity
  • 2025: Supply chain stabilizes, prices moderate
  • 2026: Sustainable materials enter mainstream

Clarity: what we know and what we don’t

Confirmed facts

  • Internal door costs vary by material, size, and style
  • Professional installation cost includes labor, hardware, and disposal
  • Repair is usually cheaper than replacement for minor issues
  • B&Q offers a door fitting service in the UK and Ireland

What’s unclear

  • Exact price in Ireland may differ from UK averages due to import costs
  • Labor rates vary significantly by region and tradesperson availability
  • Long-term durability of MDF vs solid wood doors depends on humidity

Homeowners want natural light without losing privacy.

— JELD-WEN product expert

If the door is rotted at the bottom, replacement is often more cost-effective in the long run.

— Mr. Handyman franchise owner

Our fitters are fully trained and can hang any standard internal door.

— B&Q store manager

For Irish homeowners, the trend toward sustainable materials and glass inserts means 2026 is a smart time to invest in doors that add both light and value. The cost of doing nothing is missing a chance to modernise your home at a reasonable outlay. For the budget-conscious, stick with hollow-core and DIY installation; for those prioritising quality, solid-core with professional fitting offers the best long-term return.

For a detailed look at supply and installation costs in Ireland, this internal door cost guide offers a complete guide to 2026 trends.

Frequently asked questions

What is the best material for an internal door?

Solid-core MDF strikes the best balance between cost, durability, and sound insulation. Solid wood is premium but heavier and more expensive.

How long does it take to install an internal door?

A professional can hang a pre-hung door in 1–2 hours. A slab door with frame takes 2–3 hours.

Can I paint an internal door?

Yes. Most internal doors come unfinished or primed. Use a high-quality water-based paint for a smooth finish.

Do internal doors come pre-hung?

Many are available pre-hung – meaning the door is already fitted into a frame – making installation easier for DIYers.

What size internal door do I need?

Standard widths are 24, 28, 30, 32, and 36 inches. Measure the rough opening and subtract 1 inch for the frame.

How much do fire-rated internal doors cost?

Fire-rated doors cost 30–50% more than standard – expect $260–$600 per door.

Should I buy a solid-core or hollow-core internal door?

Solid-core for bedrooms and bathrooms (better sound and fire resistance); hollow-core for closets and utility rooms to save money.