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.
Planning replacement windows for a home in Perth means making a handful of decisions about materials, layout, finish and timing. We help you work through them at a free survey, then confirm in writing what it will cost for the options you pick. Most projects of this type need 1–2 days on site for a typical house, and we cover every PH1 and PH2 address as well as the rest of Perth and Kinross.
- Guide price
- £4,300–£8,600 inc VAT
- Time on site
- 1–2 days on site for a typical house
- Postcodes
- PH1 and PH2
- Planning rules
- Scotland
- Local area
- Perth and Kinross
- Survey
- Free, with a written quote
How much do replacement windows cost in Perth?
These are guide costs, not quotes. For replacement windows in Perth the range is £4,300–£8,600, VAT included, reflecting prices in Scotland that are about 4% below the national guide. Once we have visited for a free survey, you get a firm figure for the scope you approve.
| Type of job | What it usually involves | Guide in Perth |
|---|---|---|
| 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 |
The main things that change the figure:
- Number and size of windows, including bays and large picture windows
- Glazing type: double, triple, acoustic, obscure or toughened
- Window style, such as sash, flush sash or tilt-and-turn
- Upper-floor access, scaffolding and the condition of reveals and sills
What does the job include in Perth?
- Measured survey of every opening, with sizes checked before manufacture
- Made-to-measure frames in your chosen material, colour and style
- 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 in Perth
Perth has Georgian terraces and Victorian sandstone villas, Highland Perthshire towns such as Pitlochry and Aberfeldy have stone villas and cottages, and Kinross and Crieff mix older stone housing with post-war and modern estates. Slate roofs and harled finishes are common in rural areas.
Sandstone villas in Perth and Highland Perthshire often need repointing and slate roof repairs, and many sit in conservation areas. Semis and newer homes commonly take extensions, garage conversions and garden landscaping.
So when we survey a Perth property for replacement windows, the first step is working out how it was built and what has been changed since.
Planning and building rules in Perth
Which rules apply depends on where you live. For Perth, the answer is Scotland, and the points below reflect that; we verify them with the council before quoting.
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.
How does the job run?
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.
Price and scope agreed
After the survey we send a quote for replacement windows that fixes the price for the scope we've agreed. If you want to change materials or scope, we revise it in writing before anything is booked.
Plan and prepare
Once you accept, we agree start dates, order materials and deal with any planning, building control or neighbour notices the job needs. You'll know who is coming and when before work begins.
The work itself
During the work we protect the areas around it and tidy up at the end of each day. Once complete, we check the finish, remove our materials and hand over paperwork such as building control sign-off where it applies.
What you can expect from us
Common questions
How much do replacement windows cost?
Replacement windows for a typical 3-bed semi cost £4,300–£8,600, depending on the number of windows, frame material and glazing. A single standard uPVC casement usually works out at roughly £500–£950 fitted, while aluminium, flush sash and sliding sash styles cost more. Bays, large panes and upstairs access add to the price. We measure every opening during the survey and give you a fixed price for the agreed specification.
Do I need planning permission in Perth?
It depends on the work, the size of the project, your property type and whether the building is listed or in a conservation area. Perth is in Scotland, so Scotland's rules apply. Many smaller jobs need no planning application, but some still need building control approval. We check what applies to your address before quoting.
Is triple glazing worth paying extra for?
Triple glazing adds a third pane of glass, which cuts heat loss and outside noise further than standard double glazing. It typically adds around a third to the cost of the glass units and makes opening sashes heavier. It makes most sense on cold or noisy elevations, or in homes being upgraded to a high energy standard. For many houses, modern double glazing with a warm edge spacer gives most of the benefit for less money.
What happens at the survey?
We visit your home at a time that suits you, look at the area involved, take measurements and check access, condition and any services that might be affected. We talk through what you want from replacement windows, explain the options and answer questions. There is no charge and no obligation; afterwards we send a written quote.
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.
Also covering areas around Perth
We survey and quote throughout Perth's PH1 and PH2 postcodes and in surrounding places such as Auchterarder, Blairgowrie and Crieff. The process and pricing approach are identical in each of them.