If you're planning to install new or replacement wooden windows, it helps to know how much you need to budget. In this guide, we break down the average cost of timber windows in the UK, including installation costs, and what affects your quote.

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Timber windows offer classic style and can last for decades, making them a worthwhile investment for many UK homeowners.

In this guide, we cover the average cost of timber windows in the UK, including supply and installation, plus the key factors that affect the price.

What is the average cost of timber windows in the UK in 2026?

Below are some average costs of timber windows in the UK (supply and installation):

• Timber casement windows (600 x 900mm) – £925 per window

• Timber casement windows (1,200 x 1,200mm) – £1,200 per window

That said, the exact cost of timber windows will depend on other factors, such as the style of window. Let's get into it.

Timber windows cost

How much do timber sash windows cost?

Wooden sash windows cost a little bit more than a standard casement window, but you are paying for the craftsmanship.

You can expect to pay the following prices for timber sash window (supply and installation):

• Timber sash windows (600 x 900mm) – £1,490 per window

• Timber sash windows (1,200 x 1,200mm) – £1,650 per window

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How much does it cost to install timber windows?

Already bought your wooden windows and looking for an experienced window fitter to install them?

Some window fitters will charge an hourly rate, others a day rate, and some will price up work on a 'per job' basis. As a guide:

• Typical fitter rates: £25–£35 per hour / £200–£250 per day

That said, window installation costs vary depending on window type, property size, access, and location. Which brings us to..

What affects the cost of timber windows?

Timber window costs will vary depending on factors, which are important to consider when planning your budget. They include:

• Size of the timber windows

• Type of window

• Type of wood used (softwood vs hardwood)

• Number of windows

• Quality of timber frames

• Where you live (places like London and the South East tend to be more expensive)

• Limited access or parking can increase costs

It's worth discussing these points when speaking to local window installers, so they can give you accurate quotes for the job.

Softwood vs hardwood timber windows: which is better?

Toying with softwood and hardwood timber windows? Here are the key differences:

• Softwood timber includes fast-growing pine, yew and cedar, which have good resistance to insect infestation and can last up to 50 years

• Hardwood timber includes oak, beech and maple, which are densely packed, making them more durable than softwood (lasting 60+ years) – but they're more expensive

A professional window installer can help you decide whether softwood or hardwood frames will be better for your home.

Pros and cons of timber windows

Pros of timber windows

• Ecological: Made from natural, sustainable, recyclable materials

• Durable: Wood Windows Alliance-certified timber has a lifespan of at least 60 years

• Energy-efficient: Good thermal resistance

• Designs: Versatile range

• Weather-proof: Resistant when properly maintained

Cons of timber windows

• Expensive: You can expect to pay at least 50% more for wood windows than for uPVC windows

• Regular maintenance: Requires frequent repainting

• Vulnerable: Occasionally prone to insect attack

What's included in a timber window installation quote?

Most wooden window installation quotes will include the following core steps for a professional, long-lasting finish:

• Measuring and preparation: Your fitter will begin by measuring openings and checking access, materials, and glazing requirements

• Removal and installation: Old units are then removed and new windows installed, sealed, and secured

• Finishing and certification: To finish, trims are added, surrounding areas made good, and certification issued where required

Additional costs to budget for

It’s also helpful to know what’s not typically included in a quote, so there are no surprises later:

• Old window removal and disposal: Not all fitters include this in their quote

• Scaffolding: Usually priced separately for upper floors

• Making good and decorating: Plastering, painting, or rendering not always included

• Upgraded hardware: Premium handles, locks, or finishes cost extra

• Specialist glazing: Acoustic, triple, or security glass upgrades

• Structural alterations: Changes to openings or added lintel supports

• Planning or permissions: Essential for listed or conservation properties

Timber windows cost calculator UK

To get an estimate of how much you'd spend on timber window costs, why not try our interactive cost calculator? You can tailor the quote to the exact size and quantity.

Job Estimate Calculator

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Is professional installation for timber windows worth it?

Are you a confident DIY-er and considering fitting timber windows yourself?

Unless you're registered with a competent person scheme, this job is best left to an experienced professional. Here's why:

• Legal requirements: Window replacements must comply with building regulations and be registered with the local council

• Risk of costly mistakes: Broken glass panes can easily happen

• Fitting issues: Inaccurate measurements and installation lead to drafts and poor insulation

• Durability: Professional installations are more likely to stay secure

• Certification: Included if the installer is registered with a competent person scheme, such as FENSA or the Wood Windows Alliance (WWA)

How to save on wooden window installation

There are a few simple ways to keep costs down without compromising on quality:

• Get multiple quotes: Aim for at least three quotes from local window fitters, and ask if your preferred company can price match

• Ask for itemised quotes: Helps you compare like-for-like costs for materials, labour, and extras

• Choose the right material for your needs – Mid-range, softwood options can offer great value without the premium price tag of hardwood

• Check guarantees and warranties: Many wood window suppliers offer product warranties (between 10-30 years to protect against rot, fungal decay, and manufacturing faults), and some installers guarantee their workmanship

Every Checkatrade job is backed by our £1,000 guarantee

Up to £1000. Eligibility criteria and T&C’s apply.

Find timber window fitters near me

Ready to get your replacement wooden windows sorted?

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Timber windows cost checklist

• Speak to your local wooden window fitters to decide on the quality and style of your timber windows (softwood vs hardwood, sash or casement?)

• Shop around for fair and competitive timber window prices

• Always hire a tradesperson with experience and top-rated reviews

• Don't forget to ask exactly what’s included in the quote – removing existing windows, certification and 'making good' work?

• Make sure your window fitter gives you a certificate for the work – essential for building regulations and future home sales

• Consider uPVC wood-effect windows if wooden windows are working out too pricey

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