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House Extensions in Northamptonshire

Professional house extension across Northamptonshire — free survey, fixed written quotes and guaranteed work.

If you need house extension in Northamptonshire, our team delivers workmanship you can rely on, with no day-rate surprises.

Our work is guaranteed, our quotes are fixed in writing, and our tradespeople are vetted and insured. A well-built extension adds space and lasting value to your home. We handle the whole job — design and drawings, building control and party-wall sign-off, foundations, structure and a full finish — so you deal with one accountable team from first sketch to final decoration.

Our house extensions service in Northamptonshire includes

  • Free measured survey and design advice
  • Architectural drawings and building-control sign-off
  • Foundations, brickwork, steelwork and roofing
  • Plastering, electrics, plumbing and decoration
  • Party-wall and structural calculations arranged
  • Fixed written quote — no day-rate surprises

Every extension starts with a free site survey and a fixed, itemised quote. We manage structural calculations, steelwork and building regulations throughout, and keep the site clean and the schedule honest. The result is a room that feels part of the original house, not bolted on.

House extension across Northamptonshire

We carry out house extension throughout Northamptonshire, including Northampton, Kettering, Corby, Wellingborough, Rushden, Daventry, Brackley, Towcester and the surrounding villages.

House Extensions in Northamptonshire — FAQs

Do I need planning permission for an extension?
Many extensions fall under permitted development, but larger or two-storey projects often need planning. We check this for you and handle the application if required.
Will you manage building control?
Yes. We arrange structural calculations, submit to building control and see the project through to a completion certificate.
Do I need planning permission for an extension?
Many extensions fall under permitted development, but larger or two-storey projects often need planning. We check this for you and handle the application if required.
Are you local to Northamptonshire?
We are a West Midlands-based company covering Northamptonshire and the wider region, so you get a responsive local service backed by a full team.
Is the quote for house extension in Northamptonshire free?
Yes — we provide a free site survey and a fixed, itemised written quote with no obligation.

Contact S&K Property Investments & Improvement for honest advice and a competitive fixed price on house extension in Northamptonshire.

House Extensions in Northamptonshire?

Call 0800 088 6341 or request a free survey and a fixed written quote for your house extension project in Northamptonshire.

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