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.
Every house in Kendal is a little different, so we never price replacement windows from a brochure. We look at the structure, access and existing finishes first, then put in writing a fixed figure for the scope we settle on. As a rough steer, homeowners in the North West should budget £4,300–£8,600 including VAT, with work typically taking 1–2 days on site for a typical house.
- Guide price
- £4,300–£8,600 inc VAT
- Time on site
- 1–2 days on site for a typical house
- Postcodes
- LA8 and LA9
- Planning rules
- England
- Local area
- Cumbria
- Survey
- Free, with a written quote
Replacement windows prices in Kendal
Below is a breakdown of typical costs for replacement windows in Kendal. Because rates in the North West are about 5% below the national guide, the overall guide comes to £4,300–£8,600, including VAT. Size, materials and access move the figure, and a free-of-charge survey settles it.
| Type of job | What it usually involves | Guide in Kendal |
|---|---|---|
| One to three windows | Replacing a few problem windows, such as a bay or a rotten kitchen window, in uPVC. | £650–£2,800 |
| Whole house in uPVC | Eight to ten standard uPVC casement windows on a typical 3-bed semi, fitted and finished. | £4,300–£7,100 |
| Whole house in aluminium or flush sash | Premium frames, colours or period styles across a typical 3-bed home. | £7,100–£13,500 |
The main things that change the figure:
- Frame material, colour and finish, inside and out
- 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
Scope of the work
- Measured survey of every opening, with sizes checked before manufacture
- Double-glazed units as standard, with triple glazing as an option
- 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
Local housing and replacement windows
Lake District villages are built largely of slate and rubble stone, often finished in roughcast or limewash, under slate roofs. Kendal is known for grey limestone and Penrith for red sandstone, Carlisle has sandstone and brick terraces, and west coast towns such as Barrow, Workington and Whitehaven have Victorian industrial terraces and post-war estates.
Stone cottages often need lime pointing, roof slating and breathable render. Industrial terraces can gain space through attic conversions and rear extensions, while rural homes commonly add porches, driveways and window upgrades.
These patterns matter for replacement windows: older walls, roofs and floors in Kendal can need different materials or extra preparation compared with newer homes.
Permissions for replacement windows in Kendal
Planning law differs across the UK. For a home in Kendal, it is the England rules below that count, and we check them with the council ahead of any quote.
Replacing windows and doors on a house is usually permitted development in England when the new ones look broadly similar to the old. Flats, listed buildings and homes covered by an Article 4 direction can need consent, and conservation areas may limit materials or styles.
Replacement windows and external doors must meet Building Regulations for energy efficiency, ventilation and, on upper floors, escape. The work is either self-certified by an installer registered with a competent person scheme or signed off by building control.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
The four stages
We look at the job
We arrange a free site survey on a date convenient to you. We measure up, look at the existing structure and access, and discuss your plans for replacement windows so the price reflects your home.
Written quote
Next you receive a written quote with a fixed price for the agreed specification. It lists what is included, what is not, and how payments are staged, so you can compare it properly.
Dates and permissions
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 work is carried out to the agreed specification, with floors and furniture protected and the site kept tidy. At the end we clean up, walk through the finished job with you and hand over any certificates.
Why homeowners choose us
Replacement windows in Kendal: questions
What happens on the day the windows are fitted?
On fitting day we lay dust sheets, protect floors and furniture near each window, and then remove the old frame carefully to limit damage to plaster. The new frame is fixed, packed, sealed and glazed, and internal trims and external cills are finished. We take away the old windows and clean the glass before leaving. You only need to clear sills and take down curtains and blinds.
Who do I deal with during the job?
One point of contact manages your project from survey to handover. They schedule the trades working under our contract, keep you updated on progress, and are the person to call with any question. You don't need to coordinate builders, electricians or decorators separately, because that is part of what we do.
Do I need planning permission in Kendal?
It depends on the work, the size of the project, your property type and whether the building is listed or in a conservation area. Kendal is in England, so England'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.
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.
Will new windows stop condensation?
New windows reduce condensation on the glass because the inner pane stays warmer, but they do not remove the moisture in the air that causes it. Modern frames are also more airtight, so ventilation matters more after replacement. We fit trickle vents where regulations require them, and we suggest using extractor fans and opening windows regularly. If walls are damp or mouldy, it is worth looking at ventilation and heating at the same time.
Nearby towns
Coverage for Kendal spans LA8 and LA9. Close by, Morecambe, Lancaster and Barrow-in-Furness are covered too, and the rest of our UK-wide area follows the same survey-then-quote process from start to finish.

