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Your Trusted Partner for Home Extension Solutions
MJM is a long-established local business dedicated to property improvements. We specialise in extensions, covering every aspect from design to flooring, and transform conservatories into functional rooms in a single day using thermal panels. Our team of experts prioritises quality customer service, ensuring projects are completed on time and cost-effectively while enhancing home value. With over 14 years of experience and a combined team expertise of 75 years, we offer free periodic visits post-completion and guarantee our workmanship for 12 months. We manage all project disciplines, including electrics, heating, plumbing, and carpentry, and provide full project management at no extra cost.

Our approach focuses on transparency, honesty, and treating clients and their homes with respect. All work is covered by indemnity insurance, and we offer free initial consultations to discuss your vision. Our services extend to garage conversions, garden rooms, and bespoke kitchen and bathroom installations. We pride ourselves on delivering exceptional service, ensuring every project meets exact client expectations.
Services
Extensions Conservatory Conversions Garden Rooms Garage Conversions Home Improvements
Highlights and features
  • Over 14 years of experience in property improvements
  • Free periodic visits post-project completion
  • Team with combined 75+ years of expertise
  • 12-month workmanship guarantee with free inspection
  • Transparent approach with no hidden fees
Services
Home Extensions
We design and build custom home extensions tailored to your needs. Our end-to-end service covers planning, structural work, and interior finishes, ensuring seamless integration with your existing space. With expertise in UPVC windows, bifolding doors, and underfloor heating, we create functional, energy-efficient extensions that enhance property value and living comfort.
Conservatory Conversions
Transform your conservatory into a fully insulated, year-round living space in just one day. Using advanced thermal panels, we eliminate temperature extremes while maintaining natural light. Our conversions include flooring, electrical upgrades, and decorative finishes, turning underused areas into practical rooms for living, dining, or working.
Garden Rooms
Create versatile garden rooms that blend indoor comfort with outdoor aesthetics. We install insulated structures with bifolding doors, premium flooring, and climate control systems. Ideal for entertainment, home offices, or relaxation, our garden rooms extend living space while complementing your property's architecture.
Garage Conversions
Repurpose underutilised garages into functional rooms without structural demolition. Our conversions include insulation, electrical rewiring, plumbing integration, and bespoke interior design. Whether for additional bedrooms, gyms, or studios, we ensure compliance with building regulations and maintain structural integrity.
Home Improvements
We offer comprehensive home improvement solutions including kitchen and bathroom installations, utility room upgrades, and internal renovations. Our services cover plumbing, electrics, carpentry, and decorative finishes. From modernising layouts to enhancing energy efficiency, we deliver tailored upgrades that improve functionality and aesthetic appeal.
Questions
What areas do you serve?
We primarily serve Norwich and surrounding areas in Norfolk.
How long does a conservatory conversion take?
Our thermal panel conversions typically complete in one day with minimal disruption.
Do you offer project guarantees?
Yes, all work includes a 12-month workmanship guarantee with a free 3-month inspection.
Can you handle full home extensions?
Yes, we manage complete extension projects from planning through to final decoration.
What payment methods do you accept?
We accept bank transfers and cheques. Specific payment terms discussed during consultation.
Are you insured for property damage?
All our work is covered by comprehensive indemnity insurance for client protection.