Extension builders in Halesowen for domestic extensions, building renovations, and loft conversions. 5-star rated, fully insured, free quotes across B62 and B63.
JCT Building is an extension and renovation builder covering Halesowen and the B62 and B63 postcodes. We deliver domestic extensions, kitchen extensions, rear extensions, loft conversions, and full building renovations across the town, from Cradley to Hasbury, Lapal, and Hayley Green.
Halesowen sits on the western edge of the West Midlands conurbation and has a wide range of housing stock: 1930s semis dominate much of the town, with modern estates in Hayley Green and post-war housing in Hasbury and Lapal. Many homes benefit from rear or side extensions to create modern open-plan living areas. We work with Dudley Metropolitan Borough Council planning requirements and have completed dozens of projects across the area.
Postcode area: B62–B63
Homeowners in Halesowen come to us for two things: domestic extensions that add real space, and full building renovations that bring a tired property back to life. We handle both under one roof, fully project-managed by Jay. With a 5.0 rating across 31 verified reviews, full insurance, and over 20 years of experience across B62 and B63, we give you an itemised quote and a clear build timeline up front. No vague estimates, no surprise extras.
Popular projects we deliver across the Halesowen area.
Open-plan kitchen spaces that connect your home to the garden, maximise natural light, and add significant value.
Learn morePopular in HalesowenReclaim unused space along the side of your property for utility rooms, larger hallways, or wraparound extensions.
Learn morePopular in HalesowenGain extra living space with a clean, professional rear extension for kitchens, playrooms, or home offices.
Learn moreLarge-scale extensions with full project management, structural expertise, and clear communication.
Learn morePopular in HalesowenFull home renovations handled end-to-end, bringing ageing properties up to modern standards.
Learn moreOpening up spaces by removing load-bearing walls, installing RSJ steel beams, and reconfiguring structural elements.
Learn moreCommon questions from homeowners in the Halesowen area.
Yes. Domestic extensions are one of our core services in Halesowen. We build single and double-storey rear extensions, side extensions, and kitchen extensions across B62 and B63, all fully project-managed with an itemised quote before we start. Most single-storey extensions in the Halesowen area take 8 to 12 weeks from groundworks to completion.
Yes. Alongside extensions we take on full building renovations in Halesowen, from reconfiguring and modernising 1930s semis to complete property refurbishments. We manage the whole project, including structural alterations, so you deal with one trusted builder from start to finish.
Yes — Halesowen is within our service area. We cover B62 and B63 postcodes including Cradley, Hasbury, Lapal, Hayley Green, and the surrounding districts. Halesowen is approximately 25 minutes from our Kidderminster base.
Loft conversions in Halesowen typically range from £35,000 to £65,000 depending on the property type and conversion style. Dormer conversions on 1930s semis are particularly popular here — they add a full bedroom, bathroom, and study without changing the property’s footprint.
Yes. Cradley and Cradley Heath are both within our regular Halesowen service area. We have completed extensions and renovations across both areas, including period terraces and 1930s semis.
No obligation. Honest advice. A detailed itemised quotation after a free site visit.
