Replacement windows are new frames and sealed double- or triple-glazed units fitted into your existing openings after the old windows are taken out, improving warmth, security and noise reduction while meeting current building regulations.
We offer replacement windows throughout Glasgow, from Glasgow to the smaller places in between. Each project starts with a free survey at your home and ends with a written figure, fixed for the work you choose. Because Glasgow is in Scotland, we work to the planning system and building standards used there, and guide prices for Scotland run at £4,300–£8,600 including VAT.
- Guide price
- £4,300–£8,600 inc VAT
- Time on site
- 1–2 days on site for a typical house
- Planning rules
- Scotland
- Price level
- About 4% below the national guide
- Towns listed
- Whole area
- Survey
- Free, with a written quote
How much do replacement windows cost in Glasgow?
Every figure below is a guide for replacement windows in Glasgow, inclusive of VAT. Regional pricing for Scotland works out about 4% below the national guide, and the overall span is £4,300–£8,600. The survey costs you nothing, and after it we commit to a firm price for your specification in writing.
| Type of job | What it usually involves | Guide in Glasgow |
|---|---|---|
| One to three windows | Replacing a few problem windows, such as a bay or a rotten kitchen window, in uPVC. | £650–£2,900 |
| Whole house in uPVC | Eight to ten standard uPVC casement windows on a typical 3-bed semi, fitted and finished. | £4,300–£7,200 |
| Whole house in aluminium or flush sash | Premium frames, colours or period styles across a typical 3-bed home. | £7,200–£13,500 |
Your price depends mostly on:
- Number and size of windows, including bays and large picture windows
- Frame material, colour and finish, inside and out
- Glazing type: double, triple, acoustic, obscure or toughened
- Upper-floor access, scaffolding and the condition of reveals and sills
Scope of the work
- Measured survey of every opening, with sizes checked before manufacture
- Careful removal and disposal of the old frames and glass
- Fixings, packers, foam and weather seals to suit your wall type
- New internal trims, external cills and neat sealant finishing
- Trickle vents, escape hinges and safety glass where regulations require
- Building regulations sign-off arranged and paperwork handed over
Housing across Glasgow
Glasgow is known for its blond and red sandstone tenements, built in large numbers in the late Victorian and Edwardian periods, alongside terraced and villa housing in the West End and Southside. Interwar cottage flats, large post-war housing schemes, high-rise blocks and newer developments make up much of the rest of the city.
Tenement flats commonly need window replacement and internal renovation, often with neighbours' agreement for shared parts. Villas and cottage flats suit kitchen and bathroom refits, loft conversions and extensions.
High rainfall and frequent wind-driven rain mean sandstone, pointing and roofs need regular care, especially on exposed elevations.
Do you need permission in Glasgow?
Each UK nation sets its own consent rules, and Glasgow is in Scotland. What follows is a plain summary; we check the specifics for your property with the council before pricing anything.
In Scotland, replacing windows and doors on a house generally needs no planning permission when the style is similar, but listed buildings and conservation areas are closely controlled and often need consent for any change of material or pattern.
A building warrant is not usually needed for like-for-like replacement windows, but the new units must still meet the Scottish building standards, including energy performance and, where relevant, escape from upper floors.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
The four stages
A visit to your home
We begin by looking at the job in person. During the free survey we discuss options, materials and budget for replacement windows, and photograph or measure anything the quote needs to reflect.
Written quote
We turn the survey notes into a written quote. The price is fixed for the specification we agree, and the document sets out materials, scope and payment stages in plain language.
Plan and prepare
We handle the paperwork side: checking whether planning permission or building control approval is needed, submitting applications where they are, and scheduling the trades and materials around your dates.
Build and hand over
The job proceeds in the order set out in the programme, with dust and debris kept under control. Finally we tidy away, inspect the work together and pass the finished project over to you with its paperwork.
How we work
Questions about replacement windows in Glasgow
Which postcodes in Glasgow do you cover?
We cover Glasgow, along with the rest of Glasgow. If your postcode is not listed, get in touch anyway: our coverage is UK-wide, and we can usually arrange a survey wherever you live. Enter your postcode in the guide-price tool or contact form and we will confirm.
How long does it take to fit windows in a house?
Fitting replacement windows in a typical 3-bed house usually takes one to two days on site. We take out and fit one window at a time, so each room is weathertight again within an hour or two. Bays, sash windows and homes needing scaffolding take longer. Manufacture comes first: made-to-measure frames typically take a few weeks to arrive after the survey and your order are confirmed.
Should I choose uPVC or aluminium windows?
uPVC windows are the lower-cost choice, insulate well and need only occasional cleaning, which suits most houses. Aluminium windows have slimmer frames that let in more light and suit modern homes or large openings, but they cost more. Both come in a wide range of colours and finishes. We usually recommend matching the style and proportions of your home's original windows, especially on period properties.
Do I need planning permission for new windows?
Planning permission is not usually needed to replace windows with similar ones, but it depends on the size and style of the change, your home's location, whether it is listed or in a conservation area, and which UK nation you live in. Listed buildings normally need consent for any change, and some conservation areas restrict uPVC or new styles. Flats may also need the building owner's approval. We check the position for your property before quoting.
Can I stay at home during the work?
In most cases, yes. Most people can live at home throughout, and we plan the work to keep disruption down by protecting floors, agreeing working hours and keeping access routes clear. Bigger jobs affecting kitchens, bathrooms or heating may mean a short spell with reduced facilities, and we talk this through with you at the survey.