Frequently asked questions
Questions?
Frequently asked questions
Planning an extension or renovation can feel overwhelming. Our FAQs are designed to give you clear, honest answers about the building process, pricing, timescales and approvals, helping you make confident decisions before starting your project in Cardiff and South Wales.
Extension costs vary depending on size, design, specification, access, and groundworks. We provide a detailed quotation after a site visit so you know exactly what’s included.
Some extensions can be built under permitted development, but others require planning permission. We’ll advise you based on your property and the type of extension you want.on.
Yes — almost all extensions require Building Regulations approval to ensure the work meets safety, structural and insulation standards.
Most extensions take between 8–16 weeks, depending on size and complexity. We’ll provide a realistic programme before work starts.
In many cases yes, although there may be disruption at certain stages. We’ll talk you through what to expect and help minimise disruption where possible.
Our quotations clearly outline what’s included (and what isn’t), such as groundwork, structure, roofing, electrics, plumbing, plastering, finishes, and waste removal.
Payments are normally staged in line with progress (for example: foundations, structure, roof, first fix, second fix, completion). Everything is agreed upfront.
Yes — we can manage the full extension build, including trades, scheduling, materials, and coordination with Building Control.
Yes. We can work alongside your architect/designer, or recommend professionals who can produce drawings and structural calculations.
If structural alterations are involved (such as removing walls or installing steel beams), structural calculations will be required. We can help arrange this.
That depends on your layout and goals. Common options include:
Rear extensions
Side return extensions
Wraparound extensions
Two-storey extensions
We’ll advise after assessing your property.
We aim to match materials and appearance as closely as possible, depending on brickwork, render, roof tiles, windows, and style preferences.
Yes — open-plan kitchen/diners are one of the most popular extension layouts and we can complete the full build including structural opening works.
Yes — we coordinate all required trades, including qualified electricians and plumbers, to complete the project properly and safely.
Yes — waste removal and site cleanliness are a key part of our service. Skips and disposal can be included in the quote.
We follow safe working practices, keep the site tidy, and secure tools/materials where possible to reduce risk.
We stand by the quality of our workmanship and will confirm the warranty/guarantee period depending on the project type and materials used.
Changes can be made, but we’ll always confirm any cost/time impact in writing before proceeding, keeping everything clear and controlled.
We can advise our current lead times once we understand your project. Start dates depend on workload, materials, and approvals.
Yes — we carry the appropriate insurance for construction work. Details can be provided on request.
Yes — we can share recent projects and photos so you can see the standard of our work. In some instances we may be able to offer site visit to previous work
Yes — we offer a free site visit and quotation for extensions across Cardiff and surrounding areas.