Business Details
Trusted Family-Run Builders in Kettering
KJ Construction UK is a family-run building company based in Kettering, serving Northamptonshire and surrounding areas. With a commitment to honesty and reliability, we specialise in delivering high-quality building projects tailored to client needs. Our team prioritises open communication and meticulous attention to detail, ensuring every job meets exacting standards. Backed by memberships in the Federation of Master Builders and Northamptonshire's Trading Standards Buy With Confidence Scheme, we combine expert craftsmanship with transparent advice.Over the years, we have cultivated a loyal client base through consistent delivery of exceptional results, whether for small renovations or large-scale builds. Our approach involves close collaboration with architects and local authorities to streamline complex projects, minimising stress for clients while adhering to timelines. Customer testimonials consistently highlight our professionalism, punctuality, and dedication to clean, efficient worksites, reflecting our core values of integrity and excellence.
Services
New Build
Extensions
Renovations
Loft Conversions
Garage Conversions
Full Build Service
Highlights and features
- We are family-run builders with over 15 years of industry experience.
- We hold memberships with the Federation of Master Builders for quality assurance.
- We offer fully managed building projects from start to finish.
- Our team leaves worksites clean and tidy daily as standard practice.
- We provide competitive pricing combined with exceptional workmanship.
Associations and certifications
- Federation of Master Builders
- Northamptonshire Trading Standards Buy With Confidence Scheme
What people say
Highest possible standard
Completed to a very high standard
Reliable and honest
No hesitation in recommending
Excellent service
Services
New Build
We deliver complete new build projects tailored to architectural plans. Our team collaborates with your architect from foundation to completion, ensuring compliance with regulations and client specifications. This service includes full project management, material sourcing, and skilled trades coordination to create bespoke residential or commercial properties with enduring quality.
Extensions
Our extension services transform properties by maximising available space. Whether adding a single-room extension or multi-level addition, we handle council planning, structural calculations, and building control approvals. Clients benefit from seamless integration with existing architecture, high-standard finishes, and minimal disruption to daily routines during construction.
Loft Conversions
We convert unused loft spaces into functional rooms while adhering to building regulations. This service includes structural reinforcement, insulation, stair installation, and full interior finishing. Ideal for homeowners seeking extra living space without extending ground footprint, our conversions feature energy-efficient design and optimal space utilisation.
Garage Conversions
Transform garages into habitable rooms such as home offices, gyms, or additional bedrooms. Our service covers planning consultation, structural modifications, electrical upgrades, and complete interior fit-outs. We ensure conversions meet thermal and sound insulation standards while maintaining aesthetic continuity with the main property.
Full Build Service
From concept to completion, our full build service manages every project aspect. This includes architect liaison, council submissions, trades coordination, and timeline management. Ideal for complex developments, this solution provides single-point accountability, budget control, and guaranteed adherence to quality standards throughout construction phases.
Questions
What types of building projects do you specialise in?
We specialise in new builds, property extensions, loft conversions, garage conversions, and full property refurbishments across residential and commercial sectors.
Are you accredited by any industry organisations?
Yes, we are members of the Federation of Master Builders and Northamptonshire Trading Standards Buy With Confidence Scheme.
Do you work outside Kettering?
We primarily serve Northamptonshire but also undertake projects in surrounding regions including Leicester, Milton Keynes, and Peterborough.
How do you ensure project timelines are met?
Through detailed planning, coordinated trades scheduling, and regular progress updates shared directly with clients throughout construction phases.
Can you assist with planning and permissions?
Yes, we handle architecture liaison, council submissions, and building control approvals as part of our full service packages.
What guarantees do you offer on completed work?
All projects include standard warranties covering structural elements and specified finishes, with additional guarantees available on request.
