Conservatory replacement extensions in Cumbernauld
Thinking about a conservatory replacement for your Cumbernauld home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in CumbernauldFrom £19,500 inc VAT
- PlanningScottish householder rules; building warrant needed
- Build time8–14 weeks on site
- Postcode districtsG65, G67, G68

Conservatory replacement prices in Cumbernauld
These guide figures apply our Scotland adjustment (×0.98) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Cumbernauld: £1,810 to £3,430 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 3.3 m 10 m² | £19,500 – £23,500 | £21,000 – £27,000 | £26,500 – £34,500 |
| 3.5 m × 4 m 14 m² | £25,000 – £30,500 | £29,000 – £38,000 | £37,500 – £48,500 |
| 4 m × 5 m 20 m² | £36,000 – £43,500 | £42,000 – £54,000 | £53,500 – £69,000 |
Includes removal of the old conservatory. Reusing existing foundations is only possible after investigation.
Try the guide-price tool to see a range for your own size and finish.
Will the council need to approve it?
In Scotland, householder permitted development rules (Class 1A for single-storey ground-floor extensions and Class 1B for extensions of more than one storey) allow some smaller extensions without a planning application, within limits on depth, height and distance from the boundary. Conservation areas and listed buildings are more restricted.
The planning position for a specific Cumbernauld address depends on its history and any designations, which is why we check it at the first visit.
In Scotland a building warrant from the council is needed before work starts on almost any extension, and a completion certificate is issued when the work is accepted. Building standards are set in the Scottish technical handbooks.
Building close to a public sewer needs the agreement of Scottish Water, which we check during design.
Applications are decided by your council as planning authority.
Is a conservatory replacement right for your house?
- Homes where the conservatory sits unused
- Older uPVC conservatories near the end of their life
- Conservatories that are too hot or too cold
Local to Cumbernauld
We cover Cumbernauld and the postcode districts G65, G67, G68. Neighbouring towns we cover include Airdrie (6 miles), Coatbridge (6 miles), Bellshill (9 miles), Motherwell (11 miles).
Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
From first visit to completion
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
We visit your Cumbernauld home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Conservatory replacement questions answered
How long does a conservatory replacement take to build in Cumbernauld?
On site, typically 8 to 14 weeks once approvals are in place. Before that, allow 4–12 weeks design and approvals.
Will my neighbours in Cumbernauld be involved?
If a planning application is needed, the council notifies neighbours. Where work is close to a shared boundary, we agree access and protection with them in writing.
Who do I contract with for a conservatory replacement in Cumbernauld?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Can I keep the existing base?
Sometimes, but conservatory bases are often too shallow for solid walls. Trial holes tell us before we confirm the price.
Does replacing a conservatory need planning permission?
A solid replacement is treated as a new extension, so it must meet the permitted development limits or get planning permission, and it always needs building regulations approval.
Book a free site visit in Cumbernauld
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.